From: Peter Denison Date: Thu, 21 Jun 2007 20:10:50 +0000 (+0000) Subject: brcm43xx: update SSB driver * files/ now contains the wireless-dev tree version ... X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0f3100df555289b57b816f1fb767a9908bf862cd;p=openwrt%2Fstaging%2Fmans0n.git brcm43xx: update SSB driver * files/ now contains the wireless-dev tree version * patches/210-ssb_merge is nbd's subsequent changes SVN-Revision: 7691 --- diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig b/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig index 09330dfa6b..03c4945868 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig @@ -71,4 +71,23 @@ config SSB_PCICORE_HOSTMODE help PCIcore hostmode operation (external PCI bus). +config SSB_DRIVER_MIPS + bool "SSB Broadcom MIPS core driver" + depends on SSB && MIPS + select SSB_SERIAL + help + Driver for the Sonics Silicon Backplane attached + Broadcom MIPS core. + + If unsure, say N + +config SSB_DRIVER_EXTIF + bool "SSB Broadcom EXTIF core driver" + depends on SSB_DRIVER_MIPS + help + Driver for the Sonics Silicon Backplane attached + Broadcom EXTIF core. + + If unsure, say N + endmenu diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile b/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile index 9f85d225dd..9a2b379fbf 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile @@ -1,14 +1,11 @@ -ssb-driver-chipcommon-y := driver_chipcommon/chipcommon.o -ssb-driver-mips-$(CONFIG_BCM947XX) := driver_mips/mips.o -ssb-driver-pci-$(CONFIG_SSB_DRIVER_PCICORE) := driver_pci/pcicore.o +ssb-builtin-drivers-y += driver_chipcommon.o +ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o +ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o -ssb-$(CONFIG_SSB_PCIHOST) += pci.o -ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o +ssb-hostsupport-$(CONFIG_SSB_PCIHOST) += pci.o pcihost_wrapper.o +ssb-hostsupport-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o obj-$(CONFIG_SSB) += ssb.o -ssb-objs := core.o scan.o \ - $(ssb-y) $(ssb-m) \ - $(ssb-driver-chipcommon-y) \ - $(ssb-driver-mips-y) \ - $(ssb-driver-pci-y) +ssb-objs := main.o scan.o \ + $(ssb-hostsupport-y) $(ssb-builtin-drivers-y) diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/core.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/core.c deleted file mode 100644 index 2ee13d2d36..0000000000 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/core.c +++ /dev/null @@ -1,805 +0,0 @@ -/* - * Sonics Silicon Backplane - * Subsystem core - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include "ssb_private.h" - -#include -#include -#include - -#ifdef CONFIG_SSB_PCIHOST -# include -#endif - -#ifdef CONFIG_SSB_PCMCIAHOST -# include -# include -# include -# include -#endif - - -MODULE_DESCRIPTION("Sonics Silicon Backplane driver"); -MODULE_LICENSE("GPL"); - - -static LIST_HEAD(attach_queue); -static LIST_HEAD(buses); -static int nr_buses; -static DEFINE_MUTEX(buses_mutex); - -#define ssb_buses_lock() do { \ - if (!is_early_boot()) \ - mutex_lock(&buses_mutex); \ - } while (0) - -#define ssb_buses_unlock() do { \ - if (!is_early_boot()) \ - mutex_unlock(&buses_mutex); \ - } while (0) - - -static struct ssb_device * ssb_device_get(struct ssb_device *dev) -{ - if (dev) - get_device(&dev->dev); - return dev; -} - -static void ssb_device_put(struct ssb_device *dev) -{ - if (dev) - put_device(&dev->dev); -} - -static void ssb_bus_resume(struct ssb_bus *bus) -{ -printk("SSB BUS RESUME\n"); - ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - ssb_chipco_resume(&bus->chipco); -} - -static int ssb_device_resume(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - struct ssb_bus *bus; - int err = 0; - -printk("SSB DEV RESUME\n"); - bus = ssb_dev->bus; - if (bus->suspend_cnt == bus->nr_devices) - ssb_bus_resume(bus); - bus->suspend_cnt--; - if (dev->driver) { - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->resume) - err = ssb_drv->resume(ssb_dev); - if (err) - goto out; - } -out: - return err; -} - -static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state) -{ -printk("SSB BUS SUSPEND\n"); -// ssb_chipco_suspend(&bus->chipco, state); -// ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); -} - -static int ssb_device_suspend(struct device *dev, pm_message_t state) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - struct ssb_bus *bus; - int err = 0; - -printk("SSB DEV SUSPEND\n"); - if (dev->driver) { - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->suspend) - err = ssb_drv->suspend(ssb_dev, state); - if (err) - goto out; - } - - bus = ssb_dev->bus; - bus->suspend_cnt++; - if (bus->suspend_cnt == bus->nr_devices) { - /* All devices suspended. Shutdown the bus. */ - ssb_bus_suspend(bus, state); - } - -out: - return err; -} - -static void ssb_device_shutdown(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - - if (!dev->driver) - return; - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->shutdown) - ssb_drv->shutdown(ssb_dev); -} - -static int ssb_device_remove(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); - - if (ssb_drv && ssb_drv->remove) - ssb_drv->remove(ssb_dev); - ssb_device_put(ssb_dev); - - return 0; -} - -static int ssb_device_probe(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); - int err = 0; - - ssb_device_get(ssb_dev); - if (ssb_drv && ssb_drv->probe) - err = ssb_drv->probe(ssb_dev, &ssb_dev->id); - if (err) - ssb_device_put(ssb_dev); - - return err; -} - -static int ssb_match_devid(const struct ssb_device_id *tabid, - const struct ssb_device_id *devid) -{ - if ((tabid->vendor != devid->vendor) && - tabid->vendor != SSB_ANY_VENDOR) - return 0; - if ((tabid->coreid != devid->coreid) && - tabid->coreid != SSB_ANY_ID) - return 0; - if ((tabid->revision != devid->revision) && - tabid->revision != SSB_ANY_REV) - return 0; - return 1; -} - -static int ssb_bus_match(struct device *dev, struct device_driver *drv) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(drv); - const struct ssb_device_id *id; - - for (id = ssb_drv->id_table; - id->vendor || id->coreid || id->revision; - id++) { - if (ssb_match_devid(id, &ssb_dev->id)) - return 1; /* found */ - } - - return 0; -} - -struct bus_type ssb_bustype = { - .name = NULL, /* Intentionally NULL to indicate early boot */ - .match = ssb_bus_match, - .probe = ssb_device_probe, - .remove = ssb_device_remove, - .shutdown = ssb_device_shutdown, - .suspend = ssb_device_suspend, - .resume = ssb_device_resume, -}; - -#define is_early_boot() (ssb_bustype.name == NULL) - -void ssb_bus_unregister(struct ssb_bus *bus) -{ - struct ssb_device *dev; - int i; - - ssb_buses_lock(); - for (i = bus->nr_devices - 1; i >= 0; i--) { - dev = &(bus->devices[i]); - device_unregister(&dev->dev); - } - list_del(&bus->list); - ssb_buses_unlock(); - - ssb_iounmap(bus); -} -EXPORT_SYMBOL(ssb_bus_unregister); - -static void ssb_release_dev(struct device *dev) -{ - /* Nothing, devices are allocated together with struct ssb_bus. */ -} - -/* Needs ssb_buses_lock() */ -static int ssb_attach_queued_buses(void) -{ - struct ssb_bus *bus, *n; - struct ssb_device *dev; - int i, err; - - list_for_each_entry_safe(bus, n, &attach_queue, list) { - ssb_pcicore_init(&bus->pcicore); - for (i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - - dev->dev.release = ssb_release_dev; - err = device_register(&dev->dev); - if (err) { - ssb_printk(KERN_ERR PFX - "Could not register %s\n", - dev->dev.bus_id); - } - } - list_move_tail(&bus->list, &buses); - } - return 0; -} - -static void ssb_get_boardtype(struct ssb_bus *bus) -{//FIXME for pcmcia? - if (bus->bustype != SSB_BUSTYPE_PCI) { - /* Must set board_vendor, board_type and board_rev - * before calling ssb_bus_*_register() */ - assert(bus->board_vendor && bus->board_type); - return; - } - ssb_pci_get_boardtype(bus); -} - -static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - return readw(bus->mmio + offset); -} - -static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - return readl(bus->mmio + offset); -} - -static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - writew(value, bus->mmio + offset); -} - -static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - writel(value, bus->mmio + offset); -} - -static const struct ssb_bus_ops ssb_ssb_ops = { - .read16 = ssb_ssb_read16, - .read32 = ssb_ssb_read32, - .write16 = ssb_ssb_write16, - .write32 = ssb_ssb_write32, -}; - -static int ssb_bus_register(struct ssb_bus *bus, - unsigned long baseaddr) -{ - int err; - - ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on "); - switch (bus->bustype) { - case SSB_BUSTYPE_SSB: - ssb_printk("address 0x%08lX\n", baseaddr); - break; - case SSB_BUSTYPE_PCI: -#ifdef CONFIG_SSB_PCIHOST - ssb_printk("PCI device %s\n", bus->host_pci->dev.bus_id); -#endif - break; - case SSB_BUSTYPE_PCMCIA: -#ifdef CONFIG_SSB_PCMCIAHOST - ssb_printk("PCMCIA device %s\n", bus->host_pcmcia->devname); -#endif - break; - } - - spin_lock_init(&bus->bar_lock); - INIT_LIST_HEAD(&bus->list); - - ssb_get_boardtype(bus); - /* Powerup the bus */ - err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - if (err) - goto out; - ssb_buses_lock(); - bus->busnumber = nr_buses; - /* Scan for devices (cores) */ - err = ssb_bus_scan(bus, baseaddr); - if (err) - goto err_disable_xtal; - - /* Init PCI-host device (if any) */ - err = ssb_pci_init(bus); - if (err) - goto err_unmap; - /* Init PCMCIA-host device (if any) */ - err = ssb_pcmcia_init(bus); - if (err) - goto err_unmap; - - /* Initialize basic system devices (if available) */ - ssb_chipcommon_init(&bus->chipco); - ssb_mipscore_init(&bus->mipscore); - - /* Queue it for attach */ - list_add_tail(&bus->list, &attach_queue); - if (!is_early_boot()) { - /* This is not early boot, so we must attach the bus now */ - err = ssb_attach_queued_buses(); - if (err) - goto err_dequeue; - } - nr_buses++; - ssb_buses_unlock(); - -out: - return err; - -err_dequeue: - list_del(&bus->list); -err_unmap: - ssb_iounmap(bus); -err_disable_xtal: - ssb_buses_unlock(); - ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); - goto out; -} - -#ifdef CONFIG_SSB_PCIHOST -int ssb_bus_pcibus_register(struct ssb_bus *bus, - struct pci_dev *host_pci) -{ - int err; - - bus->bustype = SSB_BUSTYPE_PCI; - bus->host_pci = host_pci; - bus->ops = &ssb_pci_ops; - - err = ssb_bus_register(bus, 0); - - return err; -} -EXPORT_SYMBOL(ssb_bus_pcibus_register); -#endif /* CONFIG_SSB_PCIHOST */ - -#ifdef CONFIG_SSB_PCMCIAHOST -int ssb_bus_pcmciabus_register(struct ssb_bus *bus, - struct pcmcia_device *pcmcia_dev, - unsigned long baseaddr, - void (*fill_sprom)(struct ssb_sprom *sprom)) -{ - int err; - - bus->bustype = SSB_BUSTYPE_PCMCIA; - bus->host_pcmcia = pcmcia_dev; - bus->ops = &ssb_pcmcia_ops; - fill_sprom(&bus->sprom); - - err = ssb_bus_register(bus, baseaddr); - - return err; -} -EXPORT_SYMBOL(ssb_bus_pcmciabus_register); -#endif /* CONFIG_SSB_PCMCIAHOST */ - -int ssb_bus_ssbbus_register(struct ssb_bus *bus, - unsigned long baseaddr, - void (*fill_sprom)(struct ssb_sprom *sprom)) -{ - int err; - - bus->bustype = SSB_BUSTYPE_SSB; - bus->ops = &ssb_ssb_ops; - fill_sprom(&bus->sprom); - err = ssb_bus_register(bus, baseaddr); - - return err; -} - -int __ssb_driver_register(struct ssb_driver *drv, struct module *owner) -{ - drv->drv.name = drv->name; - drv->drv.bus = &ssb_bustype; - drv->drv.owner = owner; - - return driver_register(&drv->drv); -} -EXPORT_SYMBOL(__ssb_driver_register); - -void ssb_driver_unregister(struct ssb_driver *drv) -{ - driver_unregister(&drv->drv); -} -EXPORT_SYMBOL(ssb_driver_unregister); - -void ssb_set_devtypedata(struct ssb_device *dev, void *data) -{ - struct ssb_bus *bus = dev->bus; - struct ssb_device *ent; - int i; - - for (i = 0; i < bus->nr_devices; i++) { - ent = &(bus->devices[i]); - if (ent->id.vendor != dev->id.vendor) - continue; - if (ent->id.coreid != dev->id.coreid) - continue; - - ent->devtypedata = data; - } -} -EXPORT_SYMBOL(ssb_set_devtypedata); - -static u32 clkfactor_f6_resolve(u32 v) -{ - /* map the magic values */ - switch (v) { - case SSB_CHIPCO_CLK_F6_2: - return 2; - case SSB_CHIPCO_CLK_F6_3: - return 3; - case SSB_CHIPCO_CLK_F6_4: - return 4; - case SSB_CHIPCO_CLK_F6_5: - return 5; - case SSB_CHIPCO_CLK_F6_6: - return 6; - case SSB_CHIPCO_CLK_F6_7: - return 7; - } - return 0; -} - -/* Calculate the speed the backplane would run at a given set of clockcontrol values */ -u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m) -{ - u32 n1, n2, clock, m1, m2, m3, mc; - - n1 = (n & SSB_CHIPCO_CLK_N1); - n2 = ((n & SSB_CHIPCO_CLK_N2) >> SSB_CHIPCO_CLK_N2_SHIFT); - - switch (plltype) { - case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ - if (m & SSB_CHIPCO_CLK_T6_MMASK) - return SSB_CHIPCO_CLK_T6_M0; - return SSB_CHIPCO_CLK_T6_M1; - case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - n1 = clkfactor_f6_resolve(n1); - n2 += SSB_CHIPCO_CLK_F5_BIAS; - break; - case SSB_PLLTYPE_2: /* 48Mhz, 4 dividers */ - n1 += SSB_CHIPCO_CLK_T2_BIAS; - n2 += SSB_CHIPCO_CLK_T2_BIAS; - assert((n1 >= 2) && (n1 <= 7)); - assert((n2 >= 5) && (n2 <= 23)); - break; - case SSB_PLLTYPE_5: /* 25Mhz, 4 dividers */ - return 100000000; - default: - assert(0); - } - - switch (plltype) { - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - clock = SSB_CHIPCO_CLK_BASE2 * n1 * n2; - break; - default: - clock = SSB_CHIPCO_CLK_BASE1 * n1 * n2; - } - if (!clock) - return 0; - - m1 = (m & SSB_CHIPCO_CLK_M1); - m2 = ((m & SSB_CHIPCO_CLK_M2) >> SSB_CHIPCO_CLK_M2_SHIFT); - m3 = ((m & SSB_CHIPCO_CLK_M3) >> SSB_CHIPCO_CLK_M3_SHIFT); - mc = ((m & SSB_CHIPCO_CLK_MC) >> SSB_CHIPCO_CLK_MC_SHIFT); - - switch (plltype) { - case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - m1 = clkfactor_f6_resolve(m1); - if ((plltype == SSB_PLLTYPE_1) || - (plltype == SSB_PLLTYPE_3)) - m2 += SSB_CHIPCO_CLK_F5_BIAS; - else - m2 = clkfactor_f6_resolve(m2); - m3 = clkfactor_f6_resolve(m3); - - switch (mc) { - case SSB_CHIPCO_CLK_MC_BYPASS: - return clock; - case SSB_CHIPCO_CLK_MC_M1: - return (clock / m1); - case SSB_CHIPCO_CLK_MC_M1M2: - return (clock / (m1 * m2)); - case SSB_CHIPCO_CLK_MC_M1M2M3: - return (clock / (m1 * m2 * m3)); - case SSB_CHIPCO_CLK_MC_M1M3: - return (clock / (m1 * m3)); - } - return 0; - case SSB_PLLTYPE_2: - m1 += SSB_CHIPCO_CLK_T2_BIAS; - m2 += SSB_CHIPCO_CLK_T2M2_BIAS; - m3 += SSB_CHIPCO_CLK_T2_BIAS; - assert((m1 >= 2) && (m1 <= 7)); - assert((m2 >= 3) && (m2 <= 10)); - assert((m3 >= 2) && (m3 <= 7)); - - if (!(mc & SSB_CHIPCO_CLK_T2MC_M1BYP)) - clock /= m1; - if (!(mc & SSB_CHIPCO_CLK_T2MC_M2BYP)) - clock /= m2; - if (!(mc & SSB_CHIPCO_CLK_T2MC_M3BYP)) - clock /= m3; - return clock; - default: - assert(0); - } - return 0; -} - -/* Get the current speed the backplane is running at */ -u32 ssb_clockspeed(struct ssb_bus *bus) -{ - u32 rate; - u32 plltype; - u32 clkctl_n, clkctl_m; - - //TODO if EXTIF: PLLTYPE == 1, read n from clockcontrol_n, m from clockcontrol_sb - - if (bus->chipco.dev) { - ssb_chipco_get_clockcontrol(&bus->chipco, &plltype, - &clkctl_n, &clkctl_m); - } else - return 0; - - if (bus->chip_id == 0x5365) { - rate = 100000000; - } else { - rate = ssb_calc_clock_rate(plltype, clkctl_n, clkctl_m); - if (plltype == SSB_PLLTYPE_3) /* 25Mhz, 2 dividers */ - rate /= 2; - } - - return rate; -} -EXPORT_SYMBOL(ssb_clockspeed); - -int ssb_device_is_enabled(struct ssb_device *dev) -{ - u32 val; - - val = ssb_read32(dev, SSB_TMSLOW); - val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | SSB_TMSLOW_REJECT; - - return (val == SSB_TMSLOW_CLOCK); -} -EXPORT_SYMBOL(ssb_device_is_enabled); - -void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags) -{ - u32 val; - - ssb_device_disable(dev, core_specific_flags); - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_RESET | SSB_TMSLOW_CLOCK | - SSB_TMSLOW_FGC | core_specific_flags); - /* flush */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); - - /* Clear SERR if set. This is a hw bug workaround. */ - if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_SERR) - ssb_write32(dev, SSB_TMSHIGH, 0); - - val = ssb_read32(dev, SSB_IMSTATE); - if (val & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) { - val &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO); - ssb_write32(dev, SSB_IMSTATE, val); - } - - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_CLOCK | SSB_TMSLOW_FGC | - core_specific_flags); - /* flush */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); - - ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_CLOCK | - core_specific_flags); - /* flush */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); -} -EXPORT_SYMBOL(ssb_device_enable); - -static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask, - int timeout, int set) -{ - int i; - u32 val; - - for (i = 0; i < timeout; i++) { - val = ssb_read32(dev, reg); - if (set) { - if (val & bitmask) - return 0; - } else { - if (!(val & bitmask)) - return 0; - } - udelay(10); - } - printk(KERN_ERR PFX "Timeout waiting for bitmask %08X on " - "register %04X to %s.\n", - bitmask, reg, (set ? "set" : "clear")); - - return -ETIMEDOUT; -} - -void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags) -{ - if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET) - return; - - ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT | SSB_TMSLOW_CLOCK); - ssb_wait_bit(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT, 1000, 1); - ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0); - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | - SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET | - core_specific_flags); - /* flush */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); - - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET | - core_specific_flags); - /* flush */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); -} -EXPORT_SYMBOL(ssb_device_disable); - -u32 ssb_dma_translation(struct ssb_device *dev) -{ - switch(dev->bus->bustype) { - case SSB_BUSTYPE_SSB: - return 0; - case SSB_BUSTYPE_PCI: - case SSB_BUSTYPE_PCMCIA: - return SSB_PCI_DMA; - } - return 0; -} -EXPORT_SYMBOL(ssb_dma_translation); - -int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask) -{ - struct device *dev = &ssb_dev->dev; - -#ifdef CONFIG_SSB_PCIHOST - if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI && - !dma_supported(dev, mask)) - return -EIO; -#endif - dev->coherent_dma_mask = mask; - dev->dma_mask = &dev->coherent_dma_mask; - - return 0; -} -EXPORT_SYMBOL(ssb_dma_set_mask); - -u32 ssb_admatch_base(u32 adm) -{ - u32 base = 0; - - switch (adm & SSB_ADM_TYPE) { - case SSB_ADM_TYPE0: - base = (adm & SSB_ADM_BASE0); - break; - case SSB_ADM_TYPE1: - assert(!(adm & SSB_ADM_NEG)); /* unsupported */ - base = (adm & SSB_ADM_BASE1); - break; - case SSB_ADM_TYPE2: - assert(!(adm & SSB_ADM_NEG)); /* unsupported */ - base = (adm & SSB_ADM_BASE2); - break; - default: - assert(0); - } - - return base; -} -EXPORT_SYMBOL(ssb_admatch_base); - -u32 ssb_admatch_size(u32 adm) -{ - u32 size = 0; - - switch (adm & SSB_ADM_TYPE) { - case SSB_ADM_TYPE0: - size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT); - break; - case SSB_ADM_TYPE1: - assert(!(adm & SSB_ADM_NEG)); /* unsupported */ - size = ((adm & SSB_ADM_SZ1) >> SSB_ADM_SZ1_SHIFT); - break; - case SSB_ADM_TYPE2: - assert(!(adm & SSB_ADM_NEG)); /* unsupported */ - size = ((adm & SSB_ADM_SZ2) >> SSB_ADM_SZ2_SHIFT); - break; - default: - assert(0); - } - size = (1 << (size + 1)); - - return size; -} -EXPORT_SYMBOL(ssb_admatch_size); - -static int __init ssb_modinit(void) -{ - int err; - - ssb_bustype.name = "ssb"; - err = bus_register(&ssb_bustype); - if (err) - return err; - - /* Maybe we already registered some buses at early boot. - * Check for this and attach them - */ - ssb_buses_lock(); - err = ssb_attach_queued_buses(); - ssb_buses_unlock(); - - return err; -} -subsys_initcall(ssb_modinit); - -static void __exit ssb_modexit(void) -{ - bus_unregister(&ssb_bustype); -} -module_exit(ssb_modexit) diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon.c new file mode 100644 index 0000000000..8e511c77b5 --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon.c @@ -0,0 +1,402 @@ +/* + * Sonics Silicon Backplane + * Broadcom ChipCommon core driver + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include +#include +#include + +#include "ssb_private.h" + + +/* Clock sources */ +enum { + /* PCI clock */ + SSB_CHIPCO_CLKSRC_PCI, + /* Crystal slow clock oscillator */ + SSB_CHIPCO_CLKSRC_XTALOS, + /* Low power oscillator */ + SSB_CHIPCO_CLKSRC_LOPWROS, +}; + + +static inline u32 chipco_read32(struct ssb_chipcommon *cc, + u16 offset) +{ + return ssb_read32(cc->dev, offset); +} + +static inline void chipco_write32(struct ssb_chipcommon *cc, + u16 offset, + u32 value) +{ + ssb_write32(cc->dev, offset, value); +} + +void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, + enum ssb_clkmode mode) +{ + struct ssb_device *ccdev = cc->dev; + struct ssb_bus *bus; + u32 tmp; + + if (!ccdev) + return; + bus = ccdev->bus; + /* chipcommon cores prior to rev6 don't support dynamic clock control */ + if (ccdev->id.revision < 6) + return; + /* chipcommon cores rev10 are a whole new ball game */ + if (ccdev->id.revision >= 10) + return; + if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) + return; + + switch (mode) { + case SSB_CLKMODE_SLOW: + tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); + tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW; + chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); + break; + case SSB_CLKMODE_FAST: + ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */ + tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); + tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; + tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL; + chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); + break; + case SSB_CLKMODE_DYNAMIC: + tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); + tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; + tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL; + tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL; + if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL) + tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL; + chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); + + /* for dynamic control, we have to release our xtal_pu "force on" */ + if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL) + ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0); + break; + default: + assert(0); + } +} + +/* Get the Slow Clock Source */ +static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc) +{ + struct ssb_bus *bus = cc->dev->bus; + u32 tmp = 0; + + if (cc->dev->id.revision < 6) { + if (bus->bustype == SSB_BUSTYPE_SSB || + bus->bustype == SSB_BUSTYPE_PCMCIA) + return SSB_CHIPCO_CLKSRC_XTALOS; + if (bus->bustype == SSB_BUSTYPE_PCI) { + pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp); + if (tmp & 0x10) + return SSB_CHIPCO_CLKSRC_PCI; + return SSB_CHIPCO_CLKSRC_XTALOS; + } + } + if (cc->dev->id.revision < 10) { + tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); + tmp &= 0x7; + if (tmp == 0) + return SSB_CHIPCO_CLKSRC_LOPWROS; + if (tmp == 1) + return SSB_CHIPCO_CLKSRC_XTALOS; + if (tmp == 2) + return SSB_CHIPCO_CLKSRC_PCI; + } + + return SSB_CHIPCO_CLKSRC_XTALOS; +} + +/* Get maximum or minimum (depending on get_max flag) slowclock frequency. */ +static int chipco_pctl_clockfreqlimit(struct ssb_chipcommon *cc, int get_max) +{ + int limit; + int clocksrc; + int divisor; + u32 tmp; + + clocksrc = chipco_pctl_get_slowclksrc(cc); + if (cc->dev->id.revision < 6) { + switch (clocksrc) { + case SSB_CHIPCO_CLKSRC_PCI: + divisor = 64; + break; + case SSB_CHIPCO_CLKSRC_XTALOS: + divisor = 32; + break; + default: + assert(0); + divisor = 1; + } + } else if (cc->dev->id.revision < 10) { + switch (clocksrc) { + case SSB_CHIPCO_CLKSRC_LOPWROS: + divisor = 1; + break; + case SSB_CHIPCO_CLKSRC_XTALOS: + case SSB_CHIPCO_CLKSRC_PCI: + tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); + divisor = (tmp >> 16) + 1; + divisor *= 4; + break; + default: + assert(0); + divisor = 1; + } + } else { + tmp = chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL); + divisor = (tmp >> 16) + 1; + divisor *= 4; + } + + switch (clocksrc) { + case SSB_CHIPCO_CLKSRC_LOPWROS: + if (get_max) + limit = 43000; + else + limit = 25000; + break; + case SSB_CHIPCO_CLKSRC_XTALOS: + if (get_max) + limit = 20200000; + else + limit = 19800000; + break; + case SSB_CHIPCO_CLKSRC_PCI: + if (get_max) + limit = 34000000; + else + limit = 25000000; + break; + default: + assert(0); + limit = 0; + } + limit /= divisor; + + return limit; +} + +static void chipco_powercontrol_init(struct ssb_chipcommon *cc) +{ + struct ssb_bus *bus = cc->dev->bus; + + if (bus->chip_id == 0x4321) { + if (bus->chip_rev == 0) + chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0x3A4); + else if (bus->chip_rev == 1) + chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0xA4); + } + + if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) + return; + + if (cc->dev->id.revision >= 10) { + /* Set Idle Power clock rate to 1Mhz */ + chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL, + (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) & + 0x0000FFFF) | 0x00040000); + } else { + int maxfreq; + + maxfreq = chipco_pctl_clockfreqlimit(cc, 1); + chipco_write32(cc, SSB_CHIPCO_PLLONDELAY, + (maxfreq * 150 + 999999) / 1000000); + chipco_write32(cc, SSB_CHIPCO_FREFSELDELAY, + (maxfreq * 15 + 999999) / 1000000); + } +} + +static void calc_fast_powerup_delay(struct ssb_chipcommon *cc) +{ + struct ssb_bus *bus = cc->dev->bus; + int minfreq; + unsigned int tmp; + u32 pll_on_delay; + + if (bus->bustype != SSB_BUSTYPE_PCI) + return; + if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) + return; + + minfreq = chipco_pctl_clockfreqlimit(cc, 0); + pll_on_delay = chipco_read32(cc, SSB_CHIPCO_PLLONDELAY); + tmp = (((pll_on_delay + 2) * 1000000) + (minfreq - 1)) / minfreq; + assert((tmp & ~0xFFFF) == 0); + + cc->fast_pwrup_delay = tmp; +} + +void ssb_chipcommon_init(struct ssb_chipcommon *cc) +{ + if (!cc->dev) + return; /* We don't have a ChipCommon */ + chipco_powercontrol_init(cc); + ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); + calc_fast_powerup_delay(cc); +} + +void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state) +{ + if (!cc->dev) + return; + ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW); +} + +void ssb_chipco_resume(struct ssb_chipcommon *cc) +{ + if (!cc->dev) + return; + chipco_powercontrol_init(cc); + ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); +} + +void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, + u32 *plltype, u32 *n, u32 *m) +{ + *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); + *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); + switch (*plltype) { + case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ + *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); + break; + case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ + if (cc->dev->bus->chip_id != 0x5365) { + *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); + break; + } + /* Fallthough */ + default: + *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); + } +} + +void ssb_chipco_timing_init(struct ssb_chipcommon *cc, + unsigned long ns) +{ + struct ssb_device *dev = cc->dev; + struct ssb_bus *bus = dev->bus; + u32 tmp; + + /* set register for external IO to control LED. */ + chipco_write32(cc, SSB_CHIPCO_PROG_CFG, 0x11); + tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ + tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 40ns */ + tmp |= ceildiv(240, ns); /* Waitcount-0 = 240ns */ + chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ + + /* Set timing for the flash */ + tmp = ceildiv(10, ns) << SSB_FLASH_WCNT_3_SHIFT; /* Waitcount-3 = 10nS */ + tmp |= ceildiv(10, ns) << SSB_FLASH_WCNT_1_SHIFT; /* Waitcount-1 = 10nS */ + tmp |= ceildiv(120, ns); /* Waitcount-0 = 120nS */ + if ((bus->chip_id == 0x5365) || + (dev->id.revision < 9)) + chipco_write32(cc, SSB_CHIPCO_FLASH_WAITCNT, tmp); + if ((bus->chip_id == 0x5365) || + (dev->id.revision < 9) || + ((bus->chip_id == 0x5350) && (bus->chip_rev == 0))) + chipco_write32(cc, SSB_CHIPCO_PCMCIA_MEMWAIT, tmp); + + if (bus->chip_id == 0x5350) { + /* Enable EXTIF */ + tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ + tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; /* Waitcount-2 = 20ns */ + tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 100ns */ + tmp |= ceildiv(120, ns); /* Waitcount-0 = 120ns */ + chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ + } +} + + +#ifdef CONFIG_SSB_SERIAL +int ssb_chipco_serial_init(struct ssb_chipcommon *cc, + struct ssb_serial_port *ports) +{ + struct ssb_bus *bus = cc->dev->bus; + int nr_ports = 0; + u32 plltype; + unsigned int irq; + u32 baud_base, div; + u32 i, n; + + plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); + irq = ssb_mips_irq(cc->dev); + + if (plltype == SSB_PLLTYPE_1) { + /* PLL clock */ + baud_base = ssb_calc_clock_rate(plltype, + chipco_read32(cc, SSB_CHIPCO_CLOCK_N), + chipco_read32(cc, SSB_CHIPCO_CLOCK_M2)); + div = 1; + } else { + if (cc->dev->id.revision >= 11) { + /* Fixed ALP clock */ + baud_base = 20000000; + div = 1; + /* Set the override bit so we don't divide it */ + chipco_write32(cc, SSB_CHIPCO_CORECTL, + SSB_CHIPCO_CORECTL_UARTCLK0); + } else if (cc->dev->id.revision >= 3) { + /* Internal backplane clock */ + baud_base = ssb_clockspeed(bus); + div = 2; /* Minimum divisor */ + chipco_write32(cc, SSB_CHIPCO_CLKDIV, + (chipco_read32(cc, SSB_CHIPCO_CLKDIV) + & ~SSB_CHIPCO_CLKDIV_UART) | div); + } else { + /* Fixed internal backplane clock */ + baud_base = 88000000; + div = 48; + } + + /* Clock source depends on strapping if UartClkOverride is unset */ + if ((cc->dev->id.revision > 0) && + !(chipco_read32(cc, SSB_CHIPCO_CORECTL) & SSB_CHIPCO_CORECTL_UARTCLK0)) { + if ((cc->capabilities & SSB_CHIPCO_CAP_UARTCLK) == + SSB_CHIPCO_CAP_UARTCLK_INT) { + /* Internal divided backplane clock */ + baud_base /= div; + } else { + /* Assume external clock of 1.8432 MHz */ + baud_base = 1843200; + } + } + } + + /* Determine the registers of the UARTs */ + n = (cc->capabilities & SSB_CHIPCO_CAP_NRUART); + for (i = 0; i < n; i++) { + void __iomem *cc_mmio; + void __iomem *uart_regs; + + cc_mmio = cc->dev->bus->mmio + (cc->dev->core_index * SSB_CORE_SIZE); + uart_regs = cc_mmio + SSB_CHIPCO_UART0_DATA; + /* Offset changed at after rev 0 */ + if (cc->dev->id.revision == 0) + uart_regs += (i * 8); + else + uart_regs += (i * 256); + + nr_ports++; + ports[i].regs = uart_regs; + ports[i].irq = irq; + ports[i].baud_base = baud_base; + ports[i].reg_shift = 0; + } + + return nr_ports; +} +#endif /* CONFIG_SSB_SERIAL */ diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c deleted file mode 100644 index a17910947e..0000000000 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c +++ /dev/null @@ -1,442 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom ChipCommon core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include -#include -#include - -#include "../ssb_private.h" - - -/* Clock sources */ -enum { - /* PCI clock */ - SSB_CHIPCO_CLKSRC_PCI, - /* Crystal slow clock oscillator */ - SSB_CHIPCO_CLKSRC_XTALOS, - /* Low power oscillator */ - SSB_CHIPCO_CLKSRC_LOPWROS, -}; - - -static inline u32 chipco_read32(struct ssb_chipcommon *cc, - u16 offset) -{ - return ssb_read32(cc->dev, offset); -} - -static inline void chipco_write32(struct ssb_chipcommon *cc, - u16 offset, - u32 value) -{ - ssb_write32(cc->dev, offset, value); -} - - -void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, - enum ssb_clkmode mode) -{ - struct ssb_device *ccdev = cc->dev; - struct ssb_bus *bus; - u32 tmp; - - if (!ccdev) - return; - bus = ccdev->bus; - /* chipcommon cores prior to rev6 don't support dynamic clock control */ - if (ccdev->id.revision < 6) - return; - /* chipcommon cores rev10 are a whole new ball game */ - if (ccdev->id.revision >= 10) - return; - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - switch (mode) { - case SSB_CLKMODE_SLOW: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - break; - case SSB_CLKMODE_FAST: - ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */ - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; - tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - break; - case SSB_CLKMODE_DYNAMIC: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL; - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL; - if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL) - tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - - /* for dynamic control, we have to release our xtal_pu "force on" */ - if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL) - ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0); - break; - default: - assert(0); - } -} -EXPORT_SYMBOL(ssb_chipco_set_clockmode); - -/* Get the Slow Clock Source */ -static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - u32 tmp = 0; - - if (cc->dev->id.revision < 6) { - if (bus->bustype == SSB_BUSTYPE_SSB /*TODO || - bus->bustype == SSB_BUSTYPE_PCMCIA*/) - return SSB_CHIPCO_CLKSRC_XTALOS; - if (bus->bustype == SSB_BUSTYPE_PCI) { - pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp); - if (tmp & 0x10) - return SSB_CHIPCO_CLKSRC_PCI; - return SSB_CHIPCO_CLKSRC_XTALOS; - } - } - if (cc->dev->id.revision < 10) { - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= 0x7; - if (tmp == 0) - return SSB_CHIPCO_CLKSRC_LOPWROS; - if (tmp == 1) - return SSB_CHIPCO_CLKSRC_XTALOS; - if (tmp == 2) - return SSB_CHIPCO_CLKSRC_PCI; - } - - return SSB_CHIPCO_CLKSRC_XTALOS; -} - -/* Get maximum or minimum (depending on get_max flag) slowclock frequency. */ -static int chipco_pctl_clockfreqlimit(struct ssb_chipcommon *cc, int get_max) -{ - int limit; - int clocksrc; - int divisor; - u32 tmp; - - clocksrc = chipco_pctl_get_slowclksrc(cc); - if (cc->dev->id.revision < 6) { - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_PCI: - divisor = 64; - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - divisor = 32; - break; - default: - assert(0); - divisor = 1; - } - } else if (cc->dev->id.revision < 10) { - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_LOPWROS: - divisor = 1; - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - case SSB_CHIPCO_CLKSRC_PCI: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - divisor = (tmp >> 16) + 1; - divisor *= 4; - break; - default: - assert(0); - divisor = 1; - } - } else { - tmp = chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL); - divisor = (tmp >> 16) + 1; - divisor *= 4; - } - - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_LOPWROS: - if (get_max) - limit = 43000; - else - limit = 25000; - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - if (get_max) - limit = 20200000; - else - limit = 19800000; - break; - case SSB_CHIPCO_CLKSRC_PCI: - if (get_max) - limit = 34000000; - else - limit = 25000000; - break; - default: - assert(0); - limit = 0; - } - limit /= divisor; - - return limit; -} - -static void chipco_powercontrol_init(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - - if (bus->chip_id == 0x4321) { - if (bus->chip_rev == 0) - chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0x3A4); - else if (bus->chip_rev == 1) - chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0xA4); - } - - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - if (cc->dev->id.revision >= 10) { - /* Set Idle Power clock rate to 1Mhz */ - chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL, - (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) & - 0x0000FFFF) | 0x00040000); - } else { - int maxfreq; - - maxfreq = chipco_pctl_clockfreqlimit(cc, 1); - chipco_write32(cc, SSB_CHIPCO_PLLONDELAY, - (maxfreq * 150 + 999999) / 1000000); - chipco_write32(cc, SSB_CHIPCO_FREFSELDELAY, - (maxfreq * 15 + 999999) / 1000000); - } -} - -static void calc_fast_powerup_delay(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - int minfreq; - unsigned int tmp; - u32 pll_on_delay; - - if (bus->bustype != SSB_BUSTYPE_PCI) - return; - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - minfreq = chipco_pctl_clockfreqlimit(cc, 0); - pll_on_delay = chipco_read32(cc, SSB_CHIPCO_PLLONDELAY); - tmp = (((pll_on_delay + 2) * 1000000) + (minfreq - 1)) / minfreq; - assert((tmp & ~0xFFFF) == 0); - - cc->fast_pwrup_delay = tmp; -} - -void ssb_chipcommon_init(struct ssb_chipcommon *cc) -{ - if (!cc->dev) - return; /* We don't have a ChipCommon */ - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); - chipco_powercontrol_init(cc); - calc_fast_powerup_delay(cc); -} - -void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state) -{ - if (!cc->dev) - return; - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW); -} - -void ssb_chipco_resume(struct ssb_chipcommon *cc) -{ - if (!cc->dev) - return; - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); - chipco_powercontrol_init(cc); -} - -void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, u32 chip_id, u32 *rate, - u32 *plltype, u32 *n, u32 *m) -{ - *rate = 0; - *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); - *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - switch (*plltype) { - case SSB_PLLTYPE_2: - case SSB_PLLTYPE_4: - case SSB_PLLTYPE_6: - case SSB_PLLTYPE_7: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); - break; - case SSB_PLLTYPE_5: - *rate = 200000000; - break; - case SSB_PLLTYPE_3: - /* 5350 uses m2 to control mips */ - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); - break; - default: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); - break; - } - - if (*rate == 0 && chip_id == 0x5365) - *rate = 200000000; -} - -void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, - u32 *plltype, u32 *n, u32 *m) -{ - *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); - *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - switch (*plltype) { - case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); - break; - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - if (cc->dev->bus->chip_id != 0x5365) { - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); - break; - } - /* Fallthough */ - default: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); - } -} - -void ssb_chipco_timing_init(struct ssb_chipcommon *cc, - unsigned long ns) -{ - struct ssb_device *dev = cc->dev; - struct ssb_bus *bus = dev->bus; - u32 tmp; - - /* set register for external IO to control LED. */ - chipco_write32(cc, SSB_CHIPCO_PROG_CFG, 0x11); - tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ - tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 40ns */ - tmp |= ceildiv(240, ns); /* Waitcount-0 = 240ns */ - chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ - - /* Set timing for the flash */ - tmp = ceildiv(10, ns) << SSB_FLASH_WCNT_3_SHIFT; /* Waitcount-3 = 10nS */ - tmp |= ceildiv(10, ns) << SSB_FLASH_WCNT_1_SHIFT; /* Waitcount-1 = 10nS */ - tmp |= ceildiv(120, ns); /* Waitcount-0 = 120nS */ - if ((bus->chip_id == 0x5365) || - (dev->id.revision < 9)) - chipco_write32(cc, SSB_CHIPCO_FLASH_WAITCNT, tmp); - if ((bus->chip_id == 0x5365) || - (dev->id.revision < 9) || - ((bus->chip_id == 0x5350) && (bus->chip_rev == 0))) - chipco_write32(cc, SSB_CHIPCO_PCMCIA_MEMWAIT, tmp); - - if (bus->chip_id == 0x5350) { - /* Enable EXTIF */ - tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ - tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; /* Waitcount-2 = 20ns */ - tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 100ns */ - tmp |= ceildiv(120, ns); /* Waitcount-0 = 120ns */ - chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ - } -} - -#ifdef CONFIG_SSB_SERIAL -int ssb_chipco_serial_init(struct ssb_chipcommon *cc, - struct ssb_serial_port *ports) -{ - struct ssb_bus *bus = cc->dev->bus; - int nr_ports = 0; - u32 plltype; - unsigned int irq; - u32 baud_base, div; - u32 i, n; - - plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - irq = ssb_mips_irq(cc->dev); - - if (plltype == SSB_PLLTYPE_1) { - /* PLL clock */ - baud_base = ssb_calc_clock_rate(plltype, - chipco_read32(cc, SSB_CHIPCO_CLOCK_N), - chipco_read32(cc, SSB_CHIPCO_CLOCK_M2)); - div = 1; - } else { - if (cc->dev->id.revision >= 11) { - /* Fixed ALP clock */ - baud_base = 20000000; - div = 1; - /* Set the override bit so we don't divide it */ - chipco_write32(cc, SSB_CHIPCO_CORECTL, - SSB_CHIPCO_CORECTL_UARTCLK0); - } else if (cc->dev->id.revision >= 3) { - /* Internal backplane clock */ - baud_base = ssb_clockspeed(bus); - div = 2; /* Minimum divisor */ - chipco_write32(cc, SSB_CHIPCO_CLKDIV, - (chipco_read32(cc, SSB_CHIPCO_CLKDIV) - & ~SSB_CHIPCO_CLKDIV_UART) | div); - } else { - /* Fixed internal backplane clock */ - baud_base = 88000000; - div = 48; - } - - /* Clock source depends on strapping if UartClkOverride is unset */ - if ((cc->dev->id.revision > 0) && - !(chipco_read32(cc, SSB_CHIPCO_CORECTL) & SSB_CHIPCO_CORECTL_UARTCLK0)) { - if ((cc->capabilities & SSB_CHIPCO_CAP_UARTCLK) == - SSB_CHIPCO_CAP_UARTCLK_INT) { - /* Internal divided backplane clock */ - baud_base /= div; - } else { - /* Assume external clock of 1.8432 MHz */ - baud_base = 1843200; - } - } - } - - /* Determine the registers of the UARTs */ - n = (cc->capabilities & SSB_CHIPCO_CAP_NRUART); - for (i = 0; i < n; i++) { - void __iomem *cc_mmio; - void __iomem *uart_regs; - - cc_mmio = cc->dev->bus->mmio + (cc->dev->core_index * SSB_CORE_SIZE); - uart_regs = cc_mmio + SSB_CHIPCO_UART0_DATA; - /* Offset changed at after rev 0 */ - if (cc->dev->id.revision == 0) - uart_regs += (i * 8); - else - uart_regs += (i * 256); - - nr_ports++; - ports[i].regs = uart_regs; - ports[i].irq = irq; - ports[i].baud_base = baud_base; - ports[i].reg_shift = 0; - } - - return nr_ports; -} -#endif /* CONFIG_SSB_SERIAL */ - -/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */ -int -ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks) -{ - /* instant NMI */ - chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks); - return 0; -} -EXPORT_SYMBOL(ssb_chipco_watchdog); diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mips/mips.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mips/mips.c deleted file mode 100644 index 7b3880ab01..0000000000 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mips/mips.c +++ /dev/null @@ -1,282 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom MIPS core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch - * Copyright 2006, 2007, Felix Fietkau - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include - -#include -#include -#include -#include - -#include "../ssb_private.h" - -#define mips_read32(mcore, offset) ssb_read32((mcore)->dev, offset) -#define mips_write32(mcore, offset, value) ssb_write32((mcore)->dev, offset, value) -#define extif_read32(extif, offset) ssb_read32((extif)->dev, offset) -#define extif_write32(extif, offset, value) ssb_write32((extif)->dev, offset, value) - -static const u32 ipsflag_irq_mask[] = { - 0, - SSB_IPSFLAG_IRQ1, - SSB_IPSFLAG_IRQ2, - SSB_IPSFLAG_IRQ3, - SSB_IPSFLAG_IRQ4, -}; - -static const u32 ipsflag_irq_shift[] = { - 0, - SSB_IPSFLAG_IRQ1_SHIFT, - SSB_IPSFLAG_IRQ2_SHIFT, - SSB_IPSFLAG_IRQ3_SHIFT, - SSB_IPSFLAG_IRQ4_SHIFT, -}; - -static inline u32 ssb_irqflag(struct ssb_device *dev) -{ - return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG; -} - -/* Get the MIPS IRQ assignment for a specified device. - * If unassigned, 0 is returned. - */ -unsigned int ssb_mips_irq(struct ssb_device *dev) -{ - struct ssb_bus *bus = dev->bus; - u32 irqflag; - u32 ipsflag; - u32 tmp; - unsigned int irq; - - irqflag = ssb_irqflag(dev); - ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG); - for (irq = 1; irq <= 4; irq++) { - tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]); - if (tmp == irqflag) - break; - } - if (irq == 5) - irq = 0; - - return irq; -} - -static void clear_irq(struct ssb_bus *bus, unsigned int irq) -{ - struct ssb_device *dev = bus->mipscore.dev; - - /* Clear the IRQ in the MIPScore backplane registers */ - if (irq == 0) { - ssb_write32(dev, SSB_INTVEC, 0); - } else { - ssb_write32(dev, SSB_IPSFLAG, - ssb_read32(dev, SSB_IPSFLAG) | - ipsflag_irq_mask[irq]); - } -} - -static void set_irq(struct ssb_device *dev, unsigned int irq) -{ - unsigned int oldirq = ssb_mips_irq(dev); - struct ssb_bus *bus = dev->bus; - struct ssb_device *mdev = bus->mipscore.dev; - u32 irqflag = ssb_irqflag(dev); - - dev->irq = irq + 2; - - ssb_dprintk(KERN_INFO PFX - "set_irq: core 0x%04x, irq %d => %d\n", - dev->id.coreid, oldirq, irq); - /* clear the old irq */ - if (oldirq == 0) - ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))); - else - clear_irq(bus, oldirq); - - /* assign the new one */ - if (irq == 0) - ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))); - - irqflag <<= ipsflag_irq_shift[irq]; - irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]); - ssb_write32(mdev, SSB_IPSFLAG, irqflag); -} - -static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports) -{ - //TODO if (EXTIF available -#if 0 - extifregs_t *eir = (extifregs_t *) regs; - sbconfig_t *sb; - - /* Determine external UART register base */ - sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF); - base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1))); - - /* Determine IRQ */ - irq = sb_irq(sbh); - - /* Disable GPIO interrupt initially */ - W_REG(&eir->gpiointpolarity, 0); - W_REG(&eir->gpiointmask, 0); - - /* Search for external UARTs */ - n = 2; - for (i = 0; i < 2; i++) { - regs = (void *) REG_MAP(base + (i * 8), 8); - if (BCMINIT(serial_exists)(regs)) { - /* Set GPIO 1 to be the external UART IRQ */ - W_REG(&eir->gpiointmask, 2); - if (add) - add(regs, irq, 13500000, 0); - } - } - - /* Add internal UART if enabled */ - if (R_REG(&eir->corecontrol) & CC_UE) - if (add) - add((void *) &eir->uartdata, irq, sb_clock(sbh), 2); - -#endif - -} - - -static void ssb_mips_serial_init(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - - if (bus->extif.dev) - mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports); - else if (bus->chipco.dev) - mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports); - else - mcore->nr_serial_ports = 0; -} - -static void ssb_mips_flash_detect(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - - mcore->flash_buswidth = 2; - if (bus->chipco.dev) { - mcore->flash_window = 0x1c000000; - mcore->flash_window_size = 0x02000000; - if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG) - & SSB_CHIPCO_CFG_DS16) == 0) - mcore->flash_buswidth = 1; - } else { - mcore->flash_window = 0x1fc00000; - mcore->flash_window_size = 0x00400000; - } -} - -static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns) -{ - u32 tmp; - - /* Initialize extif so we can get to the LEDs and external UART */ - extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN); - - /* Set timing for the flash */ - tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; - tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; - tmp |= ceildiv(120, ns); - extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); - - /* Set programmable interface timing for external uart */ - tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; - tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; - tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; - tmp |= ceildiv(120, ns); - extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); -} - -static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif, - u32 *pll_type, u32 *n, u32 *m) -{ - *pll_type = SSB_PLLTYPE_1; - *n = extif_read32(extif, SSB_EXTIF_CLOCK_N); - *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB); -} - -u32 ssb_cpu_clock(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - u32 pll_type, n, m, rate = 0; - - if (bus->extif.dev) { - ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m); - } else if (bus->chipco.dev) { - ssb_chipco_get_clockcpu(&bus->chipco, bus->chip_id, &rate, - &pll_type, &n, &m); - } else - return 0; - - if (rate == 0) - rate = ssb_calc_clock_rate(pll_type, n, m); - - if (pll_type == SSB_PLLTYPE_6) - rate *= 2; - - return rate; -} - -void ssb_mipscore_init(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - struct ssb_device *dev; - unsigned long hz, ns; - unsigned int irq, i; - - if (!mcore->dev) - return; /* We don't have a MIPS core */ - - ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n"); - - hz = ssb_clockspeed(bus); - if (!hz) - hz = 100000000; - ns = 1000000000 / hz; - - if (bus->extif.dev) - ssb_extif_timing_init(&bus->extif, ns); - else if (bus->chipco.dev) - ssb_chipco_timing_init(&bus->chipco, ns); - - /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */ - for (irq = 2, i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - dev->irq = ssb_mips_irq(dev) + 2; - switch(dev->id.coreid) { - case SSB_DEV_USB11_HOST: - /* shouldn't need a separate irq line for non-4710, most of them have a proper - * external usb controller on the pci */ - if ((bus->chip_id == 0x4710) && (irq <= 4)) { - set_irq(dev, irq++); - break; - } - case SSB_DEV_PCI: - case SSB_DEV_ETHERNET: - case SSB_DEV_80211: - case SSB_DEV_USB20_HOST: - /* These devices get their own IRQ line if available, the rest goes on IRQ0 */ - if (irq <= 4) { - set_irq(dev, irq++); - break; - } - } - } - - ssb_mips_serial_init(mcore); - ssb_mips_flash_detect(mcore); -} - -EXPORT_SYMBOL(ssb_mips_irq); diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mipscore.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mipscore.c new file mode 100644 index 0000000000..67d10178b6 --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mipscore.c @@ -0,0 +1,258 @@ +/* + * Sonics Silicon Backplane + * Broadcom MIPS core driver + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include + +#include +#include +#include +#include + +#include "ssb_private.h" + + +static inline u32 mips_read32(struct ssb_mipscore *mcore, + u16 offset) +{ + return ssb_read32(mcore->dev, offset); +} + +static inline void mips_write32(struct ssb_mipscore *mcore, + u16 offset, + u32 value) +{ + ssb_write32(mcore->dev, offset, value); +} + +static const u32 ipsflag_irq_mask[] = { + 0, + SSB_IPSFLAG_IRQ1, + SSB_IPSFLAG_IRQ2, + SSB_IPSFLAG_IRQ3, + SSB_IPSFLAG_IRQ4, +}; + +static const u32 ipsflag_irq_shift[] = { + 0, + SSB_IPSFLAG_IRQ1_SHIFT, + SSB_IPSFLAG_IRQ2_SHIFT, + SSB_IPSFLAG_IRQ3_SHIFT, + SSB_IPSFLAG_IRQ4_SHIFT, +}; + +static inline u32 ssb_irqflag(struct ssb_device *dev) +{ + return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG; +} + +/* Get the MIPS IRQ assignment for a specified device. + * If unassigned, 0 is returned. + */ +unsigned int ssb_mips_irq(struct ssb_device *dev) +{ + struct ssb_bus *bus = dev->bus; + u32 irqflag; + u32 ipsflag; + u32 tmp; + unsigned int irq; + + irqflag = ssb_irqflag(dev); + ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG); + for (irq = 1; irq <= 4; irq++) { + tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]); + if (tmp == irqflag) + break; + } + if (irq == 5) + irq = 0; + + return irq; +} + +static void clear_irq(struct ssb_bus *bus, unsigned int irq) +{ + struct ssb_device *dev = bus->mipscore.dev; + + /* Clear the IRQ in the MIPScore backplane registers */ + if (irq == 0) { + ssb_write32(dev, SSB_INTVEC, 0); + } else { + ssb_write32(dev, SSB_IPSFLAG, + ssb_read32(dev, SSB_IPSFLAG) | + ipsflag_irq_mask[irq]); + } +} + +static void set_irq(struct ssb_device *dev, unsigned int irq) +{ + unsigned int oldirq = ssb_mips_irq(dev); + struct ssb_bus *bus = dev->bus; + struct ssb_device *mdev = bus->mipscore.dev; + u32 irqflag = ssb_irqflag(dev); + + dev->irq = irq + 2; + + ssb_dprintk(KERN_INFO PFX + "set_irq: core 0x%04x, irq %d => %d\n", + dev->id.coreid, oldirq, irq); + /* clear the old irq */ + if (oldirq == 0) + ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))); + else + clear_irq(bus, oldirq); + + /* assign the new one */ + if (irq == 0) + ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))); + + irqflag <<= ipsflag_irq_shift[irq]; + irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]); + ssb_write32(mdev, SSB_IPSFLAG, irqflag); +} + +/* XXX: leave here or move into separate extif driver? */ +static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports) +{ + +} + + +static void ssb_mips_serial_init(struct ssb_mipscore *mcore) +{ + struct ssb_bus *bus = mcore->dev->bus; + + //TODO if (EXTIF available +#if 0 + extifregs_t *eir = (extifregs_t *) regs; + sbconfig_t *sb; + + /* Determine external UART register base */ + sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF); + base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1))); + + /* Determine IRQ */ + irq = sb_irq(sbh); + + /* Disable GPIO interrupt initially */ + W_REG(&eir->gpiointpolarity, 0); + W_REG(&eir->gpiointmask, 0); + + /* Search for external UARTs */ + n = 2; + for (i = 0; i < 2; i++) { + regs = (void *) REG_MAP(base + (i * 8), 8); + if (BCMINIT(serial_exists)(regs)) { + /* Set GPIO 1 to be the external UART IRQ */ + W_REG(&eir->gpiointmask, 2); + if (add) + add(regs, irq, 13500000, 0); + } + } + + /* Add internal UART if enabled */ + if (R_REG(&eir->corecontrol) & CC_UE) + if (add) + add((void *) &eir->uartdata, irq, sb_clock(sbh), 2); + +#endif + if (bus->extif.dev) + mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports); + else if (bus->chipco.dev) + mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports); + else + mcore->nr_serial_ports = 0; +} + +static void ssb_mips_flash_detect(struct ssb_mipscore *mcore) +{ + struct ssb_bus *bus = mcore->dev->bus; + + if (bus->chipco.dev) { + mcore->flash_window = 0x1c000000; + mcore->flash_window_size = 0x800000; + } else { + mcore->flash_window = 0x1fc00000; + mcore->flash_window_size = 0x400000; + } +} + + +static void ssb_cpu_clock(struct ssb_mipscore *mcore) +{ +} + +void ssb_mipscore_init(struct ssb_mipscore *mcore) +{ + struct ssb_bus *bus = mcore->dev->bus; + struct ssb_device *dev; + unsigned long hz, ns; + unsigned int irq, i; + + if (!mcore->dev) + return; /* We don't have a MIPS core */ + + ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n"); + + hz = ssb_clockspeed(bus); + if (!hz) + hz = 100000000; + ns = 1000000000 / hz; + +//TODO +#if 0 + if (have EXTIF) { + /* Initialize extif so we can get to the LEDs and external UART */ + W_REG(&eir->prog_config, CF_EN); + + /* Set timing for the flash */ + tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */ + tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */ + tmp = tmp | CEIL(120, ns); /* W0 = 120nS */ + W_REG(&eir->prog_waitcount, tmp); /* 0x01020a0c for a 100Mhz clock */ + + /* Set programmable interface timing for external uart */ + tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */ + tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */ + tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */ + tmp = tmp | CEIL(120, ns); /* W0 = 120nS */ + W_REG(&eir->prog_waitcount, tmp); + } + else... chipcommon +#endif + if (bus->chipco.dev) + ssb_chipco_timing_init(&bus->chipco, ns); + + /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */ + for (irq = 2, i = 0; i < bus->nr_devices; i++) { + dev = &(bus->devices[i]); + dev->irq = ssb_mips_irq(dev) + 2; + switch(dev->id.coreid) { + case SSB_DEV_USB11_HOST: + /* shouldn't need a separate irq line for non-4710, most of them have a proper + * external usb controller on the pci */ + if ((bus->chip_id == 0x4710) && (irq <= 4)) { + set_irq(dev, irq++); + break; + } + case SSB_DEV_PCI: + case SSB_DEV_ETHERNET: + case SSB_DEV_80211: + case SSB_DEV_USB20_HOST: + /* These devices get their own IRQ line if available, the rest goes on IRQ0 */ + if (irq <= 4) { + set_irq(dev, irq++); + break; + } + } + } + + ssb_mips_serial_init(mcore); + ssb_mips_flash_detect(mcore); +} diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c deleted file mode 100644 index 3ad97036f2..0000000000 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c +++ /dev/null @@ -1,551 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom PCI-core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include -#include -#include - -#include "../ssb_private.h" - -static inline -u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset) -{ - return ssb_read32(pc->dev, offset); -} - -static inline -void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value) -{ - ssb_write32(pc->dev, offset, value); -} - -/************************************************** - * Code for hostmode operation. - **************************************************/ - -#ifdef CONFIG_SSB_PCICORE_HOSTMODE - -#include -/* Read the bus and catch bus exceptions. This is MIPS specific. */ -#define mips_busprobe(val, addr) get_dbe((val), (addr)) - -/* Assume one-hot slot wiring */ -#define SSB_PCI_SLOT_MAX 16 - -/* Global lock is OK, as we won't have more than one extpci anyway. */ -static DEFINE_SPINLOCK(cfgspace_lock); -/* Core to access the external PCI config space. Can only have one. */ -static struct ssb_pcicore *extpci_core; - -u32 pci_iobase = 0x100; -u32 pci_membase = SSB_PCI_DMA; - -int pcibios_plat_dev_init(struct pci_dev *d) -{ - struct resource *res; - int pos, size; - u32 *base; - - printk("PCI: Fixing up device %s\n", pci_name(d)); - - /* Fix up resource bases */ - for (pos = 0; pos < 6; pos++) { - res = &d->resource[pos]; - base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase); - if (res->end) { - size = res->end - res->start + 1; - if (*base & (size - 1)) - *base = (*base + size) & ~(size - 1); - res->start = *base; - res->end = res->start + size - 1; - *base += size; - pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start); - } - /* Fix up PCI bridge BAR0 only */ - if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0) - break; - } - /* Fix up interrupt lines */ - d->irq = ssb_mips_irq(extpci_core->dev) + 2; - pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq); - - return 0; -} - -static void __init ssb_fixup_pcibridge(struct pci_dev *dev) -{ - if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0) - return; - - printk("PCI: fixing up bridge\n"); - - /* Enable PCI bridge bus mastering and memory space */ - pci_set_master(dev); - pcibios_enable_device(dev, ~0); - - /* Enable PCI bridge BAR1 prefetch and burst */ - pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3); - - /* Make sure our latency is high enough to handle the devices behind us */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8); -} -DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge); - -int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - return ssb_mips_irq(extpci_core->dev) + 2; -} - -static u32 get_cfgspace_addr(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off) -{ - u32 addr = 0; - u32 tmp; - - if (unlikely(pc->cardbusmode && dev > 1)) - goto out; - if (bus == 0) {//FIXME busnumber ok? - /* Type 0 transaction */ - if (unlikely(dev >= SSB_PCI_SLOT_MAX)) - goto out; - /* Slide the window */ - tmp = SSB_PCICORE_SBTOPCI_CFG0; - tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK); - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp); - /* Calculate the address */ - addr = SSB_PCI_CFG; - addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK); - addr |= (func << 8); - addr |= (off & ~3); - } else { - /* Type 1 transaction */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, - SSB_PCICORE_SBTOPCI_CFG1); - /* Calculate the address */ - addr = SSB_PCI_CFG; - addr |= (bus << 16); - addr |= (dev << 11); - addr |= (func << 8); - addr |= (off & ~3); - } -out: - return addr; -} - -static int ssb_extpci_read_config(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off, - void *buf, int len) -{ - int err = -EINVAL; - u32 addr, val; - void __iomem *mmio; - - assert(pc->hostmode); - if (unlikely(len != 1 && len != 2 && len != 4)) - goto out; - addr = get_cfgspace_addr(pc, bus, dev, func, off); - if (unlikely(!addr)) - goto out; - err = -ENOMEM; - mmio = ioremap_nocache(addr, len); - if (!mmio) - goto out; - - if (mips_busprobe(val, (u32 *) mmio)) { - val = 0xffffffff; - goto unmap; - } - - val >>= (8 * (off & 3)); - - switch (len) { - case 1: - *((u8 *)buf) = (u8)val; - break; - case 2: - *((u16 *)buf) = (u16)val; - break; - case 4: - *((u32 *)buf) = (u32)val; - break; - } - err = 0; -unmap: - iounmap(mmio); -out: - return err; -} - -static int ssb_extpci_write_config(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off, - const void *buf, int len) -{ - int err = -EINVAL; - u32 addr, val = 0; - void __iomem *mmio; - - assert(pc->hostmode); - if (unlikely(len != 1 && len != 2 && len != 4)) - goto out; - addr = get_cfgspace_addr(pc, bus, dev, func, off); - if (unlikely(!addr)) - goto out; - err = -ENOMEM; - mmio = ioremap_nocache(addr, len); - if (!mmio) - goto out; - - if (mips_busprobe(val, (u32 *) mmio)) { - val = 0xffffffff; - goto unmap; - } - - switch (len) { - case 1: - val &= ~(0xFF << (8 * (off & 3))); - val |= *((const u8 *)buf) << (8 * (off & 3)); - break; - case 2: - val &= ~(0xFFFF << (8 * (off & 3))); - val |= *((const u16 *)buf) << (8 * (off & 3)); - break; - case 4: - val = *((const u32 *)buf); - break; - } - writel(val, mmio); - - err = 0; -unmap: - iounmap(mmio); -out: - return err; -} - -static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn, - int reg, int size, u32 *val) -{ - unsigned long flags; - int err; - - spin_lock_irqsave(&cfgspace_lock, flags); - err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn), - PCI_FUNC(devfn), reg, val, size); - spin_unlock_irqrestore(&cfgspace_lock, flags); - - return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -} - -static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn, - int reg, int size, u32 val) -{ - unsigned long flags; - int err; - - spin_lock_irqsave(&cfgspace_lock, flags); - err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn), - PCI_FUNC(devfn), reg, &val, size); - spin_unlock_irqrestore(&cfgspace_lock, flags); - - return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops ssb_pcicore_pciops = { - .read = ssb_pcicore_read_config, - .write = ssb_pcicore_write_config, -}; - -static struct resource ssb_pcicore_mem_resource = { - .name = "SSB PCIcore external memory", - .start = SSB_PCI_DMA, - .end = (u32)SSB_PCI_DMA + (u32)SSB_PCI_DMA_SZ - 1, - .flags = IORESOURCE_MEM, -}; - -static struct resource ssb_pcicore_io_resource = { - .name = "SSB PCIcore external I/O", - .start = 0x100, - .end = 0x7FF, - .flags = IORESOURCE_IO, -}; - -static struct pci_controller ssb_pcicore_controller = { - .pci_ops = &ssb_pcicore_pciops, - .io_resource = &ssb_pcicore_io_resource, - .mem_resource = &ssb_pcicore_mem_resource, - .mem_offset = 0x24000000, -}; - -static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) -{ - u32 val; - - assert(!extpci_core); - extpci_core = pc; - - ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n"); - /* Reset devices on the external PCI bus */ - val = SSB_PCICORE_CTL_RST_OE; - val |= SSB_PCICORE_CTL_CLK_OE; - pcicore_write32(pc, SSB_PCICORE_CTL, val); - val |= SSB_PCICORE_CTL_CLK; /* Clock on */ - pcicore_write32(pc, SSB_PCICORE_CTL, val); - udelay(150); - val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */ - pcicore_write32(pc, SSB_PCICORE_CTL, val); - val = SSB_PCICORE_ARBCTL_INTERN; - pcicore_write32(pc, SSB_PCICORE_ARBCTL, val); - udelay(1); - - //TODO cardbus mode - - /* 64MB I/O window */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI0, - SSB_PCICORE_SBTOPCI_IO); - /* 64MB config space */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, - SSB_PCICORE_SBTOPCI_CFG0); - /* 1GB memory window */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, - SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA); - - /* Enable PCI bridge BAR0 prefetch and burst */ - val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; - ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 4); - - /* Enable PCI interrupts */ - pcicore_write32(pc, SSB_PCICORE_IMASK, - SSB_PCICORE_IMASK_INTA); - - /* Ok, ready to run, register it to the system. - * The following needs change, if we want to port hostmode - * to non-MIPS platform. */ - set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000)); - mdelay(300); - register_pci_controller(&ssb_pcicore_controller); -} - -static int pcicore_is_in_hostmode(struct ssb_pcicore *pc) -{ - struct ssb_bus *bus = pc->dev->bus; - u16 chipid_top; - u32 tmp; - - chipid_top = (bus->chip_id & 0xFF00); - if (chipid_top != 0x4700 && - chipid_top != 0x5300) - return 0; - - if (bus->sprom.r1.boardflags_lo & SSB_PCICORE_BFL_NOPCI) - return 0; - - /* The 200-pin BCM4712 package does not bond out PCI. Even when - * PCI is bonded out, some boards may leave the pins floating. */ - if (bus->chip_id == 0x4712) { - if (bus->chip_package == SSB_CHIPPACK_BCM4712S) - return 0; - if (bus->chip_package == SSB_CHIPPACK_BCM4712M) - return 0; - } - if (bus->chip_id == 0x5350) - return 0; - - return !mips_busprobe(tmp, (u32 *) (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE))); -} -#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ - - -/************************************************** - * Generic and Clientmode operation code. - **************************************************/ - -static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) -{ - /* Disable PCI interrupts. */ - ssb_write32(pc->dev, SSB_INTVEC, 0); -} - -void ssb_pcicore_init(struct ssb_pcicore *pc) -{ - struct ssb_device *dev = pc->dev; - struct ssb_bus *bus; - - if (!dev) - return; - bus = dev->bus; - ssb_device_enable(dev, 0); - -#ifdef CONFIG_SSB_PCICORE_HOSTMODE - pc->hostmode = pcicore_is_in_hostmode(pc); - if (pc->hostmode) - ssb_pcicore_init_hostmode(pc); -#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ - if (!pc->hostmode) - ssb_pcicore_init_clientmode(pc); -} - -static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address) -{ - pcicore_write32(pc, 0x130, address); - return pcicore_read32(pc, 0x134); -} - -static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data) -{ - pcicore_write32(pc, 0x130, address); - pcicore_write32(pc, 0x134, data); -} - -static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, - u8 address, u16 data) -{ - const u16 mdio_control = 0x128; - const u16 mdio_data = 0x12C; - u32 v; - int i; - - v = 0x80; /* Enable Preamble Sequence */ - v |= 0x2; /* MDIO Clock Divisor */ - pcicore_write32(pc, mdio_control, v); - - v = (1 << 30); /* Start of Transaction */ - v |= (1 << 28); /* Write Transaction */ - v |= (1 << 17); /* Turnaround */ - v |= (u32)device << 22; - v |= (u32)address << 18; - v |= data; - pcicore_write32(pc, mdio_data, v); - udelay(10); - for (i = 0; i < 10; i++) { - v = pcicore_read32(pc, mdio_control); - if (v & 0x100 /* Trans complete */) - break; - msleep(1); - } - pcicore_write32(pc, mdio_control, 0); -} - -static void ssb_broadcast_value(struct ssb_device *dev, - u32 address, u32 data) -{ - /* This is used for both, PCI and ChipCommon core, so be careful. */ - BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR); - BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA); - - ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address); - ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */ - ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data); - ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */ -} - -static void ssb_commit_settings(struct ssb_bus *bus) -{ - struct ssb_device *dev; - - dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev; - assert(dev); - /* This forces an update of the cached registers. */ - ssb_broadcast_value(dev, 0xFD8, 0); -} - -int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, - struct ssb_device *dev) -{ - struct ssb_device *pdev = pc->dev; - struct ssb_bus *bus; - int err = 0; - u32 tmp; - - might_sleep(); - - if (!pdev) - goto out; - bus = pdev->bus; - - /* Enable interrupts for this device. */ - if (bus->host_pci && - ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) { - u32 coremask; - - /* Calculate the "coremask" for the device. */ - coremask = (1 << dev->core_index); - - err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp); - if (err) - goto out; - tmp |= coremask << 8; - err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp); - if (err) - goto out; - } else { - u32 intvec; - - intvec = ssb_read32(pdev, SSB_INTVEC); - tmp = ssb_read32(dev, SSB_TPSFLAG); - tmp &= SSB_TPSFLAG_BPFLAG; - intvec |= tmp; - ssb_write32(pdev, SSB_INTVEC, intvec); - } - - /* Setup PCIcore operation. */ - if (pc->setup_done) - goto out; - if (pdev->id.coreid == SSB_DEV_PCI) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_PREF; - tmp |= SSB_PCICORE_SBTOPCI_BURST; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - - if (pdev->id.revision < 5) { - tmp = ssb_read32(pdev, SSB_IMCFGLO); - tmp &= ~SSB_IMCFGLO_SERTO; - tmp |= 2; - tmp &= ~SSB_IMCFGLO_REQTO; - tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; - ssb_write32(pdev, SSB_IMCFGLO, tmp); - ssb_commit_settings(bus); - } else if (pdev->id.revision >= 11) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_MRM; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - } - } else { - assert(pdev->id.coreid == SSB_DEV_PCIE); - //TODO: Better make defines for all these magic PCIE values. - if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { - /* TLP Workaround register. */ - tmp = ssb_pcie_read(pc, 0x4); - tmp |= 0x8; - ssb_pcie_write(pc, 0x4, tmp); - } - if (pdev->id.revision == 0) { - const u8 serdes_rx_device = 0x1F; - - ssb_pcie_mdio_write(pc, serdes_rx_device, - 2 /* Timer */, 0x8128); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 6 /* CDR */, 0x0100); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 7 /* CDR BW */, 0x1466); - } else if (pdev->id.revision == 1) { - /* DLLP Link Control register. */ - tmp = ssb_pcie_read(pc, 0x100); - tmp |= 0x40; - ssb_pcie_write(pc, 0x100, tmp); - } - } - pc->setup_done = 1; -out: - return err; -} -EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable); diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pcicore.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pcicore.c new file mode 100644 index 0000000000..a59dff083e --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pcicore.c @@ -0,0 +1,556 @@ +/* + * Sonics Silicon Backplane + * Broadcom PCI-core driver + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include +#include +#include + +#include "ssb_private.h" + + +static inline +u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset) +{ + return ssb_read32(pc->dev, offset); +} + +static inline +void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value) +{ + ssb_write32(pc->dev, offset, value); +} + +/************************************************** + * Code for hostmode operation. + **************************************************/ + +#ifdef CONFIG_SSB_PCICORE_HOSTMODE + +#include +/* Read the bus and catch bus exceptions. This is MIPS specific. */ +#define mips_busprobe(val, addr) get_dbe((val), (addr)) + +/* Assume one-hot slot wiring */ +#define SSB_PCI_SLOT_MAX 16 + +/* Global lock is OK, as we won't have more than one extpci anyway. */ +static DEFINE_SPINLOCK(cfgspace_lock); +/* Core to access the external PCI config space. Can only have one. */ +static struct ssb_pcicore *extpci_core; + +u32 pci_iobase = 0x100; +u32 pci_membase = SSB_PCI_DMA; + +int pcibios_plat_dev_init(struct pci_dev *d) +{ + struct resource *res; + int pos, size; + u32 *base; + + printk("PCI: Fixing up device %s\n", pci_name(d)); + + /* Fix up resource bases */ + for (pos = 0; pos < 6; pos++) { + res = &d->resource[pos]; + base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase); + if (res->end) { + size = res->end - res->start + 1; + if (*base & (size - 1)) + *base = (*base + size) & ~(size - 1); + res->start = *base; + res->end = res->start + size - 1; + *base += size; + pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start); + } + /* Fix up PCI bridge BAR0 only */ + if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0) + break; + } + /* Fix up interrupt lines */ + d->irq = ssb_mips_irq(extpci_core->dev) + 2; + pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq); + + return 0; +} + +static void __init ssb_fixup_pcibridge(struct pci_dev *dev) +{ + if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0) + return; + + printk("PCI: fixing up bridge\n"); + + /* Enable PCI bridge bus mastering and memory space */ + pci_set_master(dev); + pcibios_enable_device(dev, ~0); + + /* Enable PCI bridge BAR1 prefetch and burst */ + pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3); +} +DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge); + +int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + return ssb_mips_irq(extpci_core->dev) + 2; +} + +static u32 get_cfgspace_addr(struct ssb_pcicore *pc, + unsigned int bus, unsigned int dev, + unsigned int func, unsigned int off) +{ + u32 addr = 0; + u32 tmp; + + if (unlikely(pc->cardbusmode && dev > 1)) + goto out; + if (bus == 0) { + /* Type 0 transaction */ + if (unlikely(dev >= SSB_PCI_SLOT_MAX)) + goto out; + /* Slide the window */ + tmp = SSB_PCICORE_SBTOPCI_CFG0; + tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK); + pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp); + /* Calculate the address */ + addr = SSB_PCI_CFG; + addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK); + addr |= (func << 8); + addr |= (off & ~3); + } else { + /* Type 1 transaction */ + pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, + SSB_PCICORE_SBTOPCI_CFG1); + /* Calculate the address */ + addr = SSB_PCI_CFG; + addr |= (bus << 16); + addr |= (dev << 11); + addr |= (func << 8); + addr |= (off & ~3); + } +out: + return addr; +} + +static int ssb_extpci_read_config(struct ssb_pcicore *pc, + unsigned int bus, unsigned int dev, + unsigned int func, unsigned int off, + void *buf, int len) +{ + int err = -EINVAL; + u32 addr, val; + void __iomem *mmio; + + assert(pc->hostmode); + if (unlikely(len != 1 && len != 2 && len != 4)) + goto out; + addr = get_cfgspace_addr(pc, bus, dev, func, off); + if (unlikely(!addr)) + goto out; + err = -ENOMEM; + mmio = ioremap_nocache(addr, len); + if (!mmio) + goto out; + + if (mips_busprobe(val, (u32 *) mmio)) { + val = 0xffffffff; + goto unmap; + } + + val = readl(mmio); + val >>= (8 * (off & 3)); + + switch (len) { + case 1: + *((u8 *)buf) = (u8)val; + break; + case 2: + *((u16 *)buf) = (u16)val; + break; + case 4: + *((u32 *)buf) = (u32)val; + break; + } + err = 0; +unmap: + iounmap(mmio); +out: + return err; +} + +static int ssb_extpci_write_config(struct ssb_pcicore *pc, + unsigned int bus, unsigned int dev, + unsigned int func, unsigned int off, + const void *buf, int len) +{ + int err = -EINVAL; + u32 addr, val = 0; + void __iomem *mmio; + + assert(pc->hostmode); + if (unlikely(len != 1 && len != 2 && len != 4)) + goto out; + addr = get_cfgspace_addr(pc, bus, dev, func, off); + if (unlikely(!addr)) + goto out; + err = -ENOMEM; + mmio = ioremap_nocache(addr, len); + if (!mmio) + goto out; + + if (mips_busprobe(val, (u32 *) mmio)) { + val = 0xffffffff; + goto unmap; + } + + switch (len) { + case 1: + val = readl(mmio); + val &= ~(0xFF << (8 * (off & 3))); + val |= *((const u8 *)buf) << (8 * (off & 3)); + break; + case 2: + val = readl(mmio); + val &= ~(0xFFFF << (8 * (off & 3))); + val |= *((const u16 *)buf) << (8 * (off & 3)); + break; + case 4: + val = *((const u32 *)buf); + break; + } + writel(*((const u32 *)buf), mmio); + + err = 0; +unmap: + iounmap(mmio); +out: + return err; +} + +static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn, + int reg, int size, u32 *val) +{ + unsigned long flags; + int err; + + spin_lock_irqsave(&cfgspace_lock, flags); + err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), reg, val, size); + spin_unlock_irqrestore(&cfgspace_lock, flags); + + return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; +} + +static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn, + int reg, int size, u32 val) +{ + unsigned long flags; + int err; + + spin_lock_irqsave(&cfgspace_lock, flags); + err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), reg, &val, size); + spin_unlock_irqrestore(&cfgspace_lock, flags); + + return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops ssb_pcicore_pciops = { + .read = ssb_pcicore_read_config, + .write = ssb_pcicore_write_config, +}; + +static struct resource ssb_pcicore_mem_resource = { + .name = "SSB PCIcore external memory", + .start = SSB_PCI_DMA, + .end = (u32)SSB_PCI_DMA + (u32)SSB_PCI_DMA_SZ - 1, + .flags = IORESOURCE_MEM, +}; + +static struct resource ssb_pcicore_io_resource = { + .name = "SSB PCIcore external I/O", + .start = 0x100, + .end = 0x7FF, + .flags = IORESOURCE_IO, +}; + +static struct pci_controller ssb_pcicore_controller = { + .pci_ops = &ssb_pcicore_pciops, + .io_resource = &ssb_pcicore_io_resource, + .mem_resource = &ssb_pcicore_mem_resource, + .mem_offset = 0x24000000, +}; + +static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) +{ + u32 val; + + if (extpci_core) { + WARN_ON(1); + return; + } + extpci_core = pc; + + ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n"); + /* Reset devices on the external PCI bus */ + val = SSB_PCICORE_CTL_RST_OE; + val |= SSB_PCICORE_CTL_CLK_OE; + pcicore_write32(pc, SSB_PCICORE_CTL, val); + val |= SSB_PCICORE_CTL_CLK; /* Clock on */ + pcicore_write32(pc, SSB_PCICORE_CTL, val); + udelay(150); + val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */ + pcicore_write32(pc, SSB_PCICORE_CTL, val); + udelay(1); + + //TODO cardbus mode + + /* 64MB I/O window */ + pcicore_write32(pc, SSB_PCICORE_SBTOPCI0, + SSB_PCICORE_SBTOPCI_IO); + /* 64MB config space */ + pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, + SSB_PCICORE_SBTOPCI_CFG0); + /* 1GB memory window */ + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, + SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA); + + /* Enable PCI bridge BAR0 prefetch and burst */ + val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2); + /* Clear error conditions */ + val = 0; + ssb_extpci_write_config(pc, 0, 0, 0, PCI_STATUS, &val, 2); + + /* Enable PCI interrupts */ + pcicore_write32(pc, SSB_PCICORE_IMASK, + SSB_PCICORE_IMASK_INTA); + + /* Ok, ready to run, register it to the system. + * The following needs change, if we want to port hostmode + * to non-MIPS platform. */ + set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000)); + register_pci_controller(&ssb_pcicore_controller); +} + +static int pcicore_is_in_hostmode(struct ssb_pcicore *pc) +{ + struct ssb_bus *bus = pc->dev->bus; + u16 chipid_top; + u32 tmp; + + chipid_top = (bus->chip_id & 0xFF00); + if (chipid_top != 0x4700 && + chipid_top != 0x5300) + return 0; + + if (bus->sprom.r1.boardflags_lo & SSB_PCICORE_BFL_NOPCI) + return 0; + + /* The 200-pin BCM4712 package does not bond out PCI. Even when + * PCI is bonded out, some boards may leave the pins floating. */ + if (bus->chip_id == 0x4712) { + if (bus->chip_package == SSB_CHIPPACK_BCM4712S) + return 0; + if (bus->chip_package == SSB_CHIPPACK_BCM4712M) + return 0; + } + if (bus->chip_id == 0x5350) + return 0; + + return !mips_busprobe(tmp, (u32 *) (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE))); +} +#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ + + +/************************************************** + * Generic and Clientmode operation code. + **************************************************/ + +static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) +{ + /* Disable PCI interrupts. */ + ssb_write32(pc->dev, SSB_INTVEC, 0); +} + +void ssb_pcicore_init(struct ssb_pcicore *pc) +{ + struct ssb_device *dev = pc->dev; + struct ssb_bus *bus; + + if (!dev) + return; + bus = dev->bus; + if (!ssb_device_is_enabled(dev)) + ssb_device_enable(dev, 0); + +#ifdef CONFIG_SSB_PCICORE_HOSTMODE + pc->hostmode = pcicore_is_in_hostmode(pc); + if (pc->hostmode) + ssb_pcicore_init_hostmode(pc); +#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ + if (!pc->hostmode) + ssb_pcicore_init_clientmode(pc); +} + +static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address) +{ + pcicore_write32(pc, 0x130, address); + return pcicore_read32(pc, 0x134); +} + +static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data) +{ + pcicore_write32(pc, 0x130, address); + pcicore_write32(pc, 0x134, data); +} + +static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, + u8 address, u16 data) +{ + const u16 mdio_control = 0x128; + const u16 mdio_data = 0x12C; + u32 v; + int i; + + v = 0x80; /* Enable Preamble Sequence */ + v |= 0x2; /* MDIO Clock Divisor */ + pcicore_write32(pc, mdio_control, v); + + v = (1 << 30); /* Start of Transaction */ + v |= (1 << 28); /* Write Transaction */ + v |= (1 << 17); /* Turnaround */ + v |= (u32)device << 22; + v |= (u32)address << 18; + v |= data; + pcicore_write32(pc, mdio_data, v); + udelay(10); + for (i = 0; i < 10; i++) { + v = pcicore_read32(pc, mdio_control); + if (v & 0x100 /* Trans complete */) + break; + msleep(1); + } + pcicore_write32(pc, mdio_control, 0); +} + +static void ssb_broadcast_value(struct ssb_device *dev, + u32 address, u32 data) +{ + /* This is used for both, PCI and ChipCommon core, so be careful. */ + BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR); + BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA); + + ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address); + ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */ + ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data); + ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */ +} + +static void ssb_commit_settings(struct ssb_bus *bus) +{ + struct ssb_device *dev; + + dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev; + assert(dev); + /* This forces an update of the cached registers. */ + ssb_broadcast_value(dev, 0xFD8, 0); +} + +int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, + struct ssb_device *dev) +{ + struct ssb_device *pdev = pc->dev; + struct ssb_bus *bus; + int err = 0; + u32 tmp; + + might_sleep(); + + if (!pdev) + goto out; + bus = pdev->bus; + + /* Enable interrupts for this device. */ + if (bus->host_pci && + ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) { + u32 coremask; + + /* Calculate the "coremask" for the device. */ + coremask = (1 << dev->core_index); + + err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp); + if (err) + goto out; + tmp |= coremask << 8; + err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp); + if (err) + goto out; + } else { + u32 intvec; + + intvec = ssb_read32(pdev, SSB_INTVEC); + tmp = ssb_read32(dev, SSB_TPSFLAG); + tmp &= SSB_TPSFLAG_BPFLAG; + intvec |= tmp; + ssb_write32(pdev, SSB_INTVEC, intvec); + } + + /* Setup PCIcore operation. */ + if (pc->setup_done) + goto out; + if (pdev->id.coreid == SSB_DEV_PCI) { + tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); + tmp |= SSB_PCICORE_SBTOPCI_PREF; + tmp |= SSB_PCICORE_SBTOPCI_BURST; + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); + + if (pdev->id.revision < 5) { + tmp = ssb_read32(pdev, SSB_IMCFGLO); + tmp &= ~SSB_IMCFGLO_SERTO; + tmp |= 2; + tmp &= ~SSB_IMCFGLO_REQTO; + tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; + ssb_write32(pdev, SSB_IMCFGLO, tmp); + ssb_commit_settings(bus); + } else if (pdev->id.revision >= 11) { + tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); + tmp |= SSB_PCICORE_SBTOPCI_MRM; + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); + } + } else { + assert(pdev->id.coreid == SSB_DEV_PCIE); + //TODO: Better make defines for all these magic PCIE values. + if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { + /* TLP Workaround register. */ + tmp = ssb_pcie_read(pc, 0x4); + tmp |= 0x8; + ssb_pcie_write(pc, 0x4, tmp); + } + if (pdev->id.revision == 0) { + const u8 serdes_rx_device = 0x1F; + + ssb_pcie_mdio_write(pc, serdes_rx_device, + 2 /* Timer */, 0x8128); + ssb_pcie_mdio_write(pc, serdes_rx_device, + 6 /* CDR */, 0x0100); + ssb_pcie_mdio_write(pc, serdes_rx_device, + 7 /* CDR BW */, 0x1466); + } else if (pdev->id.revision == 1) { + /* DLLP Link Control register. */ + tmp = ssb_pcie_read(pc, 0x100); + tmp |= 0x40; + ssb_pcie_write(pc, 0x100, tmp); + } + } + pc->setup_done = 1; +out: + return err; +} +EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable); diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/main.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/main.c new file mode 100644 index 0000000000..a2d22312ca --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/main.c @@ -0,0 +1,1054 @@ +/* + * Sonics Silicon Backplane + * Subsystem core + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "ssb_private.h" + +#include +#include +#include + +#ifdef CONFIG_SSB_PCIHOST +# include +#endif + +#ifdef CONFIG_SSB_PCMCIAHOST +# include +# include +# include +# include +#endif + + +MODULE_DESCRIPTION("Sonics Silicon Backplane driver"); +MODULE_LICENSE("GPL"); + + +static LIST_HEAD(attach_queue); +static LIST_HEAD(buses); +static int nr_buses; +static DEFINE_MUTEX(buses_mutex); + +static void ssb_buses_lock(void); +static void ssb_buses_unlock(void); + + +#ifdef CONFIG_SSB_PCIHOST +struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev) +{ + struct ssb_bus *bus; + + ssb_buses_lock(); + list_for_each_entry(bus, &buses, list) { + if (bus->bustype == SSB_BUSTYPE_PCI && + bus->host_pci == pdev) + goto found; + } + bus = NULL; +found: + ssb_buses_unlock(); + + return bus; +} +#endif /* CONFIG_SSB_PCIHOST */ + +static struct ssb_device * ssb_device_get(struct ssb_device *dev) +{ + if (dev) + get_device(dev->dev); + return dev; +} + +static void ssb_device_put(struct ssb_device *dev) +{ + if (dev) + put_device(dev->dev); +} + +static int ssb_bus_resume(struct ssb_bus *bus) +{ + int err; + + ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); + err = ssb_pcmcia_init(bus); + if (err) { + /* No need to disable XTAL, as we don't have one on PCMCIA. */ + return err; + } + ssb_chipco_resume(&bus->chipco); + + return 0; +} + +static int ssb_device_resume(struct device *dev) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv; + struct ssb_bus *bus; + int err = 0; + + bus = ssb_dev->bus; + if (bus->suspend_cnt == bus->nr_devices) { + err = ssb_bus_resume(bus); + if (err) + return err; + } + bus->suspend_cnt--; + if (dev->driver) { + ssb_drv = drv_to_ssb_drv(dev->driver); + if (ssb_drv && ssb_drv->resume) + err = ssb_drv->resume(ssb_dev); + if (err) + goto out; + } +out: + return err; +} + +static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state) +{ + ssb_chipco_suspend(&bus->chipco, state); + ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); + + /* Reset HW state information in memory, so that HW is + * completely reinitialized on resume. */ + bus->mapped_device = NULL; +#ifdef CONFIG_SSB_DRIVER_PCICORE + bus->pcicore.setup_done = 0; +#endif +} + +static int ssb_device_suspend(struct device *dev, pm_message_t state) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv; + struct ssb_bus *bus; + int err = 0; + + if (dev->driver) { + ssb_drv = drv_to_ssb_drv(dev->driver); + if (ssb_drv && ssb_drv->suspend) + err = ssb_drv->suspend(ssb_dev, state); + if (err) + goto out; + } + + bus = ssb_dev->bus; + bus->suspend_cnt++; + if (bus->suspend_cnt == bus->nr_devices) { + /* All devices suspended. Shutdown the bus. */ + ssb_bus_suspend(bus, state); + } + +out: + return err; +} + +#ifdef CONFIG_SSB_PCIHOST +int ssb_devices_freeze(struct ssb_bus *bus) +{ + struct ssb_device *dev; + struct ssb_driver *drv; + int err = 0; + int i; + pm_message_t state = PMSG_FREEZE; + + for (i = 0; i < bus->nr_devices; i++) { + dev = &(bus->devices[i]); + if (!dev->dev->driver) + continue; + if (!device_is_registered(dev->dev)) + continue; + drv = drv_to_ssb_drv(dev->dev->driver); + if (drv && drv->suspend) { + err = drv->suspend(dev, state); + if (err) + goto out; + } + } +out: + return err; +} + +int ssb_devices_thaw(struct ssb_bus *bus) +{ + struct ssb_device *dev; + struct ssb_driver *drv; + int err = 0; + int i; + + for (i = 0; i < bus->nr_devices; i++) { + dev = &(bus->devices[i]); + if (!dev->dev->driver) + continue; + if (!device_is_registered(dev->dev)) + continue; + drv = drv_to_ssb_drv(dev->dev->driver); + if (drv && drv->resume) { + err = drv->resume(dev); + if (err) + goto out; + } + } +out: + return err; +} +#endif /* CONFIG_SSB_PCIHOST */ + +static void ssb_device_shutdown(struct device *dev) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv; + + if (!dev->driver) + return; + ssb_drv = drv_to_ssb_drv(dev->driver); + if (ssb_drv && ssb_drv->shutdown) + ssb_drv->shutdown(ssb_dev); +} + +static int ssb_device_remove(struct device *dev) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); + + if (ssb_drv && ssb_drv->remove) + ssb_drv->remove(ssb_dev); + ssb_device_put(ssb_dev); + + return 0; +} + +static int ssb_device_probe(struct device *dev) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); + int err = 0; + + ssb_device_get(ssb_dev); + if (ssb_drv && ssb_drv->probe) + err = ssb_drv->probe(ssb_dev, &ssb_dev->id); + if (err) + ssb_device_put(ssb_dev); + + return err; +} + +static int ssb_match_devid(const struct ssb_device_id *tabid, + const struct ssb_device_id *devid) +{ + if ((tabid->vendor != devid->vendor) && + tabid->vendor != SSB_ANY_VENDOR) + return 0; + if ((tabid->coreid != devid->coreid) && + tabid->coreid != SSB_ANY_ID) + return 0; + if ((tabid->revision != devid->revision) && + tabid->revision != SSB_ANY_REV) + return 0; + return 1; +} + +static int ssb_bus_match(struct device *dev, struct device_driver *drv) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + struct ssb_driver *ssb_drv = drv_to_ssb_drv(drv); + const struct ssb_device_id *id; + + for (id = ssb_drv->id_table; + id->vendor || id->coreid || id->revision; + id++) { + if (ssb_match_devid(id, &ssb_dev->id)) + return 1; /* found */ + } + + return 0; +} + +static struct bus_type ssb_bustype = { + .name = NULL, /* Intentionally NULL to indicate early boot */ + .match = ssb_bus_match, + .probe = ssb_device_probe, + .remove = ssb_device_remove, + .shutdown = ssb_device_shutdown, + .suspend = ssb_device_suspend, + .resume = ssb_device_resume, +}; + +#define is_early_boot() (ssb_bustype.name == NULL) + +static void ssb_buses_lock(void) +{ + if (!is_early_boot()) + mutex_lock(&buses_mutex); +} + +static void ssb_buses_unlock(void) +{ + if (!is_early_boot()) + mutex_unlock(&buses_mutex); +} + +static void ssb_devices_unregister(struct ssb_bus *bus) +{ + struct ssb_device *sdev; + int i; + + for (i = bus->nr_devices - 1; i >= 0; i--) { + sdev = &(bus->devices[i]); + if (sdev->dev) + device_unregister(sdev->dev); + } +} + +void ssb_bus_unregister(struct ssb_bus *bus) +{ + ssb_buses_lock(); + ssb_devices_unregister(bus); + list_del(&bus->list); + ssb_buses_unlock(); + + /* ssb_pcmcia_exit(bus); */ + ssb_pci_exit(bus); + ssb_iounmap(bus); +} +EXPORT_SYMBOL(ssb_bus_unregister); + +static void ssb_release_dev(struct device *dev) +{ + struct __ssb_dev_wrapper *devwrap; + + devwrap = container_of(dev, struct __ssb_dev_wrapper, dev); + kfree(devwrap); +} + +static int ssb_devices_register(struct ssb_bus *bus) +{ + struct ssb_device *sdev; + struct device *dev; + struct __ssb_dev_wrapper *devwrap; + int i, err = 0; + int dev_idx = 0; + + for (i = 0; i < bus->nr_devices; i++) { + sdev = &(bus->devices[i]); + + /* We don't register SSB-system devices to the kernel, + * as the drivers for them are built into SSB. */ + switch (sdev->id.coreid) { + case SSB_DEV_CHIPCOMMON: + case SSB_DEV_PCI: + case SSB_DEV_PCIE: + case SSB_DEV_PCMCIA: + case SSB_DEV_MIPS: + case SSB_DEV_MIPS_3302: + case SSB_DEV_EXTIF: + continue; + } + + devwrap = kzalloc(sizeof(*devwrap), GFP_KERNEL); + if (!devwrap) { + ssb_printk(KERN_ERR PFX + "Could not allocate device\n"); + err = -ENOMEM; + goto error; + } + dev = &devwrap->dev; + devwrap->sdev = sdev; + + dev->release = ssb_release_dev; + dev->bus = &ssb_bustype; + snprintf(dev->bus_id, sizeof(dev->bus_id), + "ssb%d:%d", bus->busnumber, dev_idx); + + switch (bus->bustype) { + case SSB_BUSTYPE_PCI: +#ifdef CONFIG_SSB_PCIHOST + sdev->irq = bus->host_pci->irq; + dev->parent = &bus->host_pci->dev; +#endif + break; + case SSB_BUSTYPE_PCMCIA: +#ifdef CONFIG_SSB_PCMCIAHOST + dev->parent = &bus->host_pcmcia->dev; +#endif + break; + case SSB_BUSTYPE_SSB: + break; + } + + sdev->dev = dev; + err = device_register(dev); + if (err) { + ssb_printk(KERN_ERR PFX + "Could not register %s\n", + dev->bus_id); + /* Set dev to NULL to not unregister + * dev on error unwinding. */ + sdev->dev = NULL; + kfree(devwrap); + goto error; + } + dev_idx++; + } + + return 0; +error: + /* Unwind the already registered devices. */ + ssb_devices_unregister(bus); + return err; +} + +/* Needs ssb_buses_lock() */ +static int ssb_attach_queued_buses(void) +{ + struct ssb_bus *bus, *n; + int err = 0; + int drop_them_all = 0; + + list_for_each_entry_safe(bus, n, &attach_queue, list) { + if (drop_them_all) { + list_del(&bus->list); + continue; + } + /* Can't init the PCIcore in ssb_bus_register(), as that + * is too early in boot for embedded systems + * (no udelay() available). So do it here in attach stage. + */ + ssb_pcicore_init(&bus->pcicore); + + err = ssb_devices_register(bus); + if (err) { + drop_them_all = 1; + list_del(&bus->list); + continue; + } + list_move_tail(&bus->list, &buses); + } + + return err; +} + +static void ssb_get_boardtype(struct ssb_bus *bus) +{//FIXME for pcmcia? + if (bus->bustype != SSB_BUSTYPE_PCI) { + /* Must set board_vendor, board_type and board_rev + * before calling ssb_bus_*_register() */ + assert(bus->board_vendor && bus->board_type); + return; + } + ssb_pci_get_boardtype(bus); +} + +static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + return readw(bus->mmio + offset); +} + +static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + return readl(bus->mmio + offset); +} + +static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + writew(value, bus->mmio + offset); +} + +static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + writel(value, bus->mmio + offset); +} + +static const struct ssb_bus_ops ssb_ssb_ops = { + .read16 = ssb_ssb_read16, + .read32 = ssb_ssb_read32, + .write16 = ssb_ssb_write16, + .write32 = ssb_ssb_write32, +}; + +static int ssb_bus_register(struct ssb_bus *bus, + unsigned long baseaddr) +{ + int err; + + spin_lock_init(&bus->bar_lock); + INIT_LIST_HEAD(&bus->list); + + ssb_get_boardtype(bus); + /* Powerup the bus */ + err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); + if (err) + goto out; + ssb_buses_lock(); + bus->busnumber = nr_buses; + /* Scan for devices (cores) */ + err = ssb_bus_scan(bus, baseaddr); + if (err) + goto err_disable_xtal; + + /* Init PCI-host device (if any) */ + err = ssb_pci_init(bus); + if (err) + goto err_unmap; + /* Init PCMCIA-host device (if any) */ + err = ssb_pcmcia_init(bus); + if (err) + goto err_pci_exit; + + /* Initialize basic system devices (if available) */ + ssb_chipcommon_init(&bus->chipco); + ssb_mipscore_init(&bus->mipscore); + + /* Queue it for attach */ + list_add_tail(&bus->list, &attach_queue); + if (!is_early_boot()) { + /* This is not early boot, so we must attach the bus now */ + err = ssb_attach_queued_buses(); + if (err) + goto err_dequeue; + } + nr_buses++; + ssb_buses_unlock(); + +out: + return err; + +err_dequeue: + list_del(&bus->list); +/* err_pcmcia_exit: */ +/* ssb_pcmcia_exit(bus); */ +err_pci_exit: + ssb_pci_exit(bus); +err_unmap: + ssb_iounmap(bus); +err_disable_xtal: + ssb_buses_unlock(); + ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); + return err; +} + +#ifdef CONFIG_SSB_PCIHOST +int ssb_bus_pcibus_register(struct ssb_bus *bus, + struct pci_dev *host_pci) +{ + int err; + + bus->bustype = SSB_BUSTYPE_PCI; + bus->host_pci = host_pci; + bus->ops = &ssb_pci_ops; + + err = ssb_bus_register(bus, 0); + if (!err) { + ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on " + "PCI device %s\n", host_pci->dev.bus_id); + } + + return err; +} +EXPORT_SYMBOL(ssb_bus_pcibus_register); +#endif /* CONFIG_SSB_PCIHOST */ + +#ifdef CONFIG_SSB_PCMCIAHOST +int ssb_bus_pcmciabus_register(struct ssb_bus *bus, + struct pcmcia_device *pcmcia_dev, + unsigned long baseaddr, + void (*fill_sprom)(struct ssb_sprom *sprom)) +{ + int err; + + bus->bustype = SSB_BUSTYPE_PCMCIA; + bus->host_pcmcia = pcmcia_dev; + bus->ops = &ssb_pcmcia_ops; + fill_sprom(&bus->sprom); + + err = ssb_bus_register(bus, baseaddr); + if (!err) { + ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on " + "PCMCIA device %s\n", pcmcia_dev->devname); + } + + return err; +} +EXPORT_SYMBOL(ssb_bus_pcmciabus_register); +#endif /* CONFIG_SSB_PCMCIAHOST */ + +int ssb_bus_ssbbus_register(struct ssb_bus *bus, + unsigned long baseaddr, + void (*fill_sprom)(struct ssb_sprom *sprom)) +{ + int err; + + bus->bustype = SSB_BUSTYPE_SSB; + bus->ops = &ssb_ssb_ops; + fill_sprom(&bus->sprom); + + err = ssb_bus_register(bus, baseaddr); + if (!err) { + ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found at " + "address 0x%08lX\n", baseaddr); + } + + return err; +} + +int __ssb_driver_register(struct ssb_driver *drv, struct module *owner) +{ + drv->drv.name = drv->name; + drv->drv.bus = &ssb_bustype; + drv->drv.owner = owner; + + return driver_register(&drv->drv); +} +EXPORT_SYMBOL(__ssb_driver_register); + +void ssb_driver_unregister(struct ssb_driver *drv) +{ + driver_unregister(&drv->drv); +} +EXPORT_SYMBOL(ssb_driver_unregister); + +void ssb_set_devtypedata(struct ssb_device *dev, void *data) +{ + struct ssb_bus *bus = dev->bus; + struct ssb_device *ent; + int i; + + for (i = 0; i < bus->nr_devices; i++) { + ent = &(bus->devices[i]); + if (ent->id.vendor != dev->id.vendor) + continue; + if (ent->id.coreid != dev->id.coreid) + continue; + + ent->devtypedata = data; + } +} +EXPORT_SYMBOL(ssb_set_devtypedata); + +static u32 clkfactor_f6_resolve(u32 v) +{ + /* map the magic values */ + switch (v) { + case SSB_CHIPCO_CLK_F6_2: + return 2; + case SSB_CHIPCO_CLK_F6_3: + return 3; + case SSB_CHIPCO_CLK_F6_4: + return 4; + case SSB_CHIPCO_CLK_F6_5: + return 5; + case SSB_CHIPCO_CLK_F6_6: + return 6; + case SSB_CHIPCO_CLK_F6_7: + return 7; + } + return 0; +} + +/* Calculate the speed the backplane would run at a given set of clockcontrol values */ +u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m) +{ + u32 n1, n2, clock, m1, m2, m3, mc; + + n1 = (n & SSB_CHIPCO_CLK_N1); + n2 = ((n & SSB_CHIPCO_CLK_N2) >> SSB_CHIPCO_CLK_N2_SHIFT); + + switch (plltype) { + case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ + if (m & SSB_CHIPCO_CLK_T6_MMASK) + return SSB_CHIPCO_CLK_T6_M0; + return SSB_CHIPCO_CLK_T6_M1; + case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ + case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ + case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ + case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ + n1 = clkfactor_f6_resolve(n1); + n2 += SSB_CHIPCO_CLK_F5_BIAS; + break; + case SSB_PLLTYPE_2: /* 48Mhz, 4 dividers */ + n1 += SSB_CHIPCO_CLK_T2_BIAS; + n2 += SSB_CHIPCO_CLK_T2_BIAS; + assert((n1 >= 2) && (n1 <= 7)); + assert((n2 >= 5) && (n2 <= 23)); + break; + case SSB_PLLTYPE_5: /* 25Mhz, 4 dividers */ + return 100000000; + default: + assert(0); + } + + switch (plltype) { + case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ + case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ + clock = SSB_CHIPCO_CLK_BASE2 * n1 * n2; + break; + default: + clock = SSB_CHIPCO_CLK_BASE1 * n1 * n2; + } + if (!clock) + return 0; + + m1 = (m & SSB_CHIPCO_CLK_M1); + m2 = ((m & SSB_CHIPCO_CLK_M2) >> SSB_CHIPCO_CLK_M2_SHIFT); + m3 = ((m & SSB_CHIPCO_CLK_M3) >> SSB_CHIPCO_CLK_M3_SHIFT); + mc = ((m & SSB_CHIPCO_CLK_MC) >> SSB_CHIPCO_CLK_MC_SHIFT); + + switch (plltype) { + case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ + case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ + case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ + case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ + m1 = clkfactor_f6_resolve(m1); + if ((plltype == SSB_PLLTYPE_1) || + (plltype == SSB_PLLTYPE_3)) + m2 += SSB_CHIPCO_CLK_F5_BIAS; + else + m2 = clkfactor_f6_resolve(m2); + m3 = clkfactor_f6_resolve(m3); + + switch (mc) { + case SSB_CHIPCO_CLK_MC_BYPASS: + return clock; + case SSB_CHIPCO_CLK_MC_M1: + return (clock / m1); + case SSB_CHIPCO_CLK_MC_M1M2: + return (clock / (m1 * m2)); + case SSB_CHIPCO_CLK_MC_M1M2M3: + return (clock / (m1 * m2 * m3)); + case SSB_CHIPCO_CLK_MC_M1M3: + return (clock / (m1 * m3)); + } + return 0; + case SSB_PLLTYPE_2: + m1 += SSB_CHIPCO_CLK_T2_BIAS; + m2 += SSB_CHIPCO_CLK_T2M2_BIAS; + m3 += SSB_CHIPCO_CLK_T2_BIAS; + assert((m1 >= 2) && (m1 <= 7)); + assert((m2 >= 3) && (m2 <= 10)); + assert((m3 >= 2) && (m3 <= 7)); + + if (!(mc & SSB_CHIPCO_CLK_T2MC_M1BYP)) + clock /= m1; + if (!(mc & SSB_CHIPCO_CLK_T2MC_M2BYP)) + clock /= m2; + if (!(mc & SSB_CHIPCO_CLK_T2MC_M3BYP)) + clock /= m3; + return clock; + default: + assert(0); + } + return 0; +} + +/* Get the current speed the backplane is running at */ +u32 ssb_clockspeed(struct ssb_bus *bus) +{ + u32 rate; + u32 plltype; + u32 clkctl_n, clkctl_m; + + //TODO if EXTIF: PLLTYPE == 1, read n from clockcontrol_n, m from clockcontrol_sb + + if (bus->chipco.dev) { + ssb_chipco_get_clockcontrol(&bus->chipco, &plltype, + &clkctl_n, &clkctl_m); + } else + return 0; + + if (bus->chip_id == 0x5365) { + rate = 100000000; + } else { + rate = ssb_calc_clock_rate(plltype, clkctl_n, clkctl_m); + if (plltype == SSB_PLLTYPE_3) /* 25Mhz, 2 dividers */ + rate /= 2; + } + + return rate; +} +EXPORT_SYMBOL(ssb_clockspeed); + +static u32 ssb_tmslow_reject_bitmask(struct ssb_device *dev) +{ + /* The REJECT bit changed position in TMSLOW between + * Backplane revisions. */ + switch (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV) { + case SSB_IDLOW_SSBREV_22: + return SSB_TMSLOW_REJECT_22; + case SSB_IDLOW_SSBREV_23: + return SSB_TMSLOW_REJECT_23; + default: + assert(0); + } + return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23); +} + +int ssb_device_is_enabled(struct ssb_device *dev) +{ + u32 val; + u32 reject; + + reject = ssb_tmslow_reject_bitmask(dev); + val = ssb_read32(dev, SSB_TMSLOW); + val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | reject; + + return (val == SSB_TMSLOW_CLOCK); +} +EXPORT_SYMBOL(ssb_device_is_enabled); + +void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags) +{ + u32 val; + + ssb_device_disable(dev, core_specific_flags); + ssb_write32(dev, SSB_TMSLOW, + SSB_TMSLOW_RESET | SSB_TMSLOW_CLOCK | + SSB_TMSLOW_FGC | core_specific_flags); + /* flush */ + ssb_read32(dev, SSB_TMSLOW); + udelay(1); + + /* Clear SERR if set. This is a hw bug workaround. */ + if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_SERR) + ssb_write32(dev, SSB_TMSHIGH, 0); + + val = ssb_read32(dev, SSB_IMSTATE); + if (val & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) { + val &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO); + ssb_write32(dev, SSB_IMSTATE, val); + } + + ssb_write32(dev, SSB_TMSLOW, + SSB_TMSLOW_CLOCK | SSB_TMSLOW_FGC | + core_specific_flags); + /* flush */ + ssb_read32(dev, SSB_TMSLOW); + udelay(1); + + ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_CLOCK | + core_specific_flags); + /* flush */ + ssb_read32(dev, SSB_TMSLOW); + udelay(1); +} +EXPORT_SYMBOL(ssb_device_enable); + +static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask, + int timeout, int set) +{ + int i; + u32 val; + + for (i = 0; i < timeout; i++) { + val = ssb_read32(dev, reg); + if (set) { + if (val & bitmask) + return 0; + } else { + if (!(val & bitmask)) + return 0; + } + udelay(10); + } + printk(KERN_ERR PFX "Timeout waiting for bitmask %08X on " + "register %04X to %s.\n", + bitmask, reg, (set ? "set" : "clear")); + + return -ETIMEDOUT; +} + +void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags) +{ + u32 reject; + + if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET) + return; + + reject = ssb_tmslow_reject_bitmask(dev); + ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK); + ssb_wait_bit(dev, SSB_TMSLOW, reject, 1000, 1); + ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0); + ssb_write32(dev, SSB_TMSLOW, + SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | + reject | SSB_TMSLOW_RESET | + core_specific_flags); + /* flush */ + ssb_read32(dev, SSB_TMSLOW); + udelay(1); + + ssb_write32(dev, SSB_TMSLOW, + reject | SSB_TMSLOW_RESET | + core_specific_flags); + /* flush */ + ssb_read32(dev, SSB_TMSLOW); + udelay(1); +} +EXPORT_SYMBOL(ssb_device_disable); + +u32 ssb_dma_translation(struct ssb_device *dev) +{ + switch(dev->bus->bustype) { + case SSB_BUSTYPE_SSB: + return 0; + case SSB_BUSTYPE_PCI: + case SSB_BUSTYPE_PCMCIA: + return SSB_PCI_DMA; + } + return 0; +} +EXPORT_SYMBOL(ssb_dma_translation); + +int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask) +{ + struct device *dev = ssb_dev->dev; + +#ifdef CONFIG_SSB_PCIHOST + if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI && + !dma_supported(dev, mask)) + return -EIO; +#endif + dev->coherent_dma_mask = mask; + dev->dma_mask = &dev->coherent_dma_mask; + + return 0; +} +EXPORT_SYMBOL(ssb_dma_set_mask); + +int ssb_bus_may_powerdown(struct ssb_bus *bus) +{ + struct ssb_chipcommon *cc; + int err; + + /* On buses where more than one core may be working + * at a time, we must not powerdown stuff if there are + * still cores that may want to run. */ + if (bus->bustype == SSB_BUSTYPE_SSB) + return 0; + + cc = &bus->chipco; + ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW); + err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); + if (err) + goto error; + + return 0; +error: + ssb_printk(KERN_ERR PFX "Bus powerdown failed\n"); + return err; +} +EXPORT_SYMBOL(ssb_bus_may_powerdown); + +int ssb_bus_powerup(struct ssb_bus *bus, int dynamic_pctl) +{ + struct ssb_chipcommon *cc; + int err; + enum ssb_clkmode mode; + + err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); + if (err) + goto error; + cc = &bus->chipco; + mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST; + ssb_chipco_set_clockmode(cc, mode); + + return 0; +error: + ssb_printk(KERN_ERR PFX "Bus powerup failed\n"); + return err; +} +EXPORT_SYMBOL(ssb_bus_powerup); + +u32 ssb_admatch_base(u32 adm) +{ + u32 base = 0; + + switch (adm & SSB_ADM_TYPE) { + case SSB_ADM_TYPE0: + base = (adm & SSB_ADM_BASE0); + break; + case SSB_ADM_TYPE1: + assert(!(adm & SSB_ADM_NEG)); /* unsupported */ + base = (adm & SSB_ADM_BASE1); + break; + case SSB_ADM_TYPE2: + assert(!(adm & SSB_ADM_NEG)); /* unsupported */ + base = (adm & SSB_ADM_BASE2); + break; + default: + assert(0); + } + + return base; +} +EXPORT_SYMBOL(ssb_admatch_base); + +u32 ssb_admatch_size(u32 adm) +{ + u32 size = 0; + + switch (adm & SSB_ADM_TYPE) { + case SSB_ADM_TYPE0: + size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT); + break; + case SSB_ADM_TYPE1: + assert(!(adm & SSB_ADM_NEG)); /* unsupported */ + size = ((adm & SSB_ADM_SZ1) >> SSB_ADM_SZ1_SHIFT); + break; + case SSB_ADM_TYPE2: + assert(!(adm & SSB_ADM_NEG)); /* unsupported */ + size = ((adm & SSB_ADM_SZ2) >> SSB_ADM_SZ2_SHIFT); + break; + default: + assert(0); + } + size = (1 << (size + 1)); + + return size; +} +EXPORT_SYMBOL(ssb_admatch_size); + +static int __init ssb_modinit(void) +{ + int err; + + ssb_bustype.name = "ssb"; + err = bus_register(&ssb_bustype); + if (err) + return err; + + /* Maybe we already registered some buses at early boot. + * Check for this and attach them + */ + ssb_buses_lock(); + err = ssb_attach_queued_buses(); + ssb_buses_unlock(); + if (err) + bus_unregister(&ssb_bustype); + + return err; +} +subsys_initcall(ssb_modinit); + +static void __exit ssb_modexit(void) +{ + bus_unregister(&ssb_bustype); +} +module_exit(ssb_modexit) diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c index 811af789ed..fcd8e871cb 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c @@ -121,7 +121,7 @@ int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on) err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); if (err) goto err_pci; - msleep(2); + msleep(5); } } @@ -240,6 +240,52 @@ static void sprom_do_read(struct ssb_bus *bus, u16 *sprom) sprom[i] = readw(bus->mmio + SSB_SPROM_BASE + (i * 2)); } +static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom) +{ + struct pci_dev *pdev = bus->host_pci; + int i, err; + u32 spromctl; + + ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n"); + err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); + if (err) + goto err_ctlreg; + spromctl |= SSB_SPROMCTL_WE; + err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); + if (err) + goto err_ctlreg; + ssb_printk(KERN_NOTICE PFX "[ 0%%"); + msleep(500); + for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) { + if (i == SSB_SPROMSIZE_WORDS / 4) + ssb_printk("25%%"); + else if (i == SSB_SPROMSIZE_WORDS / 2) + ssb_printk("50%%"); + else if (i == (SSB_SPROMSIZE_WORDS / 4) * 3) + ssb_printk("75%%"); + else if (i % 2) + ssb_printk("."); + writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2)); + mmiowb(); + msleep(20); + } + err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); + if (err) + goto err_ctlreg; + spromctl &= ~SSB_SPROMCTL_WE; + err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); + if (err) + goto err_ctlreg; + msleep(500); + ssb_printk("100%% ]\n"); + ssb_printk(KERN_NOTICE PFX "SPROM written.\n"); + + return 0; +err_ctlreg: + ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n"); + return err; +} + static void sprom_extract_r1(struct ssb_sprom_r1 *out, const u16 *in) { int i; @@ -472,9 +518,155 @@ const struct ssb_bus_ops ssb_pci_ops = { .write32 = ssb_pci_write32, }; +static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len) +{ + int i, pos = 0; + + for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) { + pos += snprintf(buf + pos, buf_len - pos - 1, + "%04X", swab16(sprom[i]) & 0xFFFF); + } + pos += snprintf(buf + pos, buf_len - pos - 1, "\n"); + + return pos + 1; +} + +static int hex2sprom(u16 *sprom, const char *dump, size_t len) +{ + char tmp[5] = { 0 }; + int cnt = 0; + unsigned long parsed; + + if (len < SSB_SPROMSIZE_BYTES * 2) + return -EINVAL; + + while (cnt < SSB_SPROMSIZE_WORDS) { + memcpy(tmp, dump, 4); + dump += 4; + parsed = simple_strtoul(tmp, NULL, 16); + sprom[cnt++] = swab16((u16)parsed); + } + + return 0; +} + +static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev, + struct device_attribute *attr, + char *buf) +{ + struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); + struct ssb_bus *bus; + u16 *sprom; + int err = -ENODEV; + ssize_t count = 0; + + bus = ssb_pci_dev_to_bus(pdev); + if (!bus) + goto out; + err = -ENOMEM; + sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL); + if (!sprom) + goto out; + + err = -ERESTARTSYS; + if (mutex_lock_interruptible(&bus->pci_sprom_mutex)) + goto out_kfree; + sprom_do_read(bus, sprom); + mutex_unlock(&bus->pci_sprom_mutex); + + count = sprom2hex(sprom, buf, PAGE_SIZE); + err = 0; + +out_kfree: + kfree(sprom); +out: + return err ? err : count; +} + +static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); + struct ssb_bus *bus; + u16 *sprom; + int res = 0, err = -ENODEV; + + bus = ssb_pci_dev_to_bus(pdev); + if (!bus) + goto out; + err = -ENOMEM; + sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL); + if (!sprom) + goto out; + err = hex2sprom(sprom, buf, count); + if (err) { + err = -EINVAL; + goto out_kfree; + } + err = sprom_check_crc(sprom); + if (err) { + err = -EINVAL; + goto out_kfree; + } + + err = -ERESTARTSYS; + if (mutex_lock_interruptible(&bus->pci_sprom_mutex)) + goto out_kfree; + err = ssb_devices_freeze(bus); + if (err) { + ssb_printk(KERN_ERR PFX "SPROM write: Could not freeze all devices\n"); + goto out_unlock; + } + res = sprom_do_write(bus, sprom); + err = ssb_devices_thaw(bus); + if (err) + ssb_printk(KERN_ERR PFX "SPROM write: Could not thaw all devices\n"); +out_unlock: + mutex_unlock(&bus->pci_sprom_mutex); +out_kfree: + kfree(sprom); +out: + if (res) + return res; + return err ? err : count; +} + +static DEVICE_ATTR(ssb_sprom, 0600, + ssb_pci_attr_sprom_show, + ssb_pci_attr_sprom_store); + +void ssb_pci_exit(struct ssb_bus *bus) +{ + struct pci_dev *pdev; + + if (bus->bustype != SSB_BUSTYPE_PCI) + return; + + pdev = bus->host_pci; + device_remove_file(&pdev->dev, &dev_attr_ssb_sprom); +} + int ssb_pci_init(struct ssb_bus *bus) { + struct pci_dev *pdev; + int err; + if (bus->bustype != SSB_BUSTYPE_PCI) return 0; - return ssb_pci_sprom_get(bus); + + pdev = bus->host_pci; + mutex_init(&bus->pci_sprom_mutex); + err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom); + if (err) + goto out; + err = ssb_pci_sprom_get(bus); + if (err) + goto err_remove_sprom_file; + +out: + return err; +err_remove_sprom_file: + device_remove_file(&pdev->dev, &dev_attr_ssb_sprom); + return err; } diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c new file mode 100644 index 0000000000..82a10abef6 --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c @@ -0,0 +1,104 @@ +/* + * Sonics Silicon Backplane + * PCI Hostdevice wrapper + * + * Copyright (c) 2005 Martin Langer + * Copyright (c) 2005 Stefano Brivio + * Copyright (c) 2005 Danny van Dyk + * Copyright (c) 2005 Andreas Jaggi + * Copyright (c) 2005-2007 Michael Buesch + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include +#include + + +#ifdef CONFIG_PM +static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state) +{ + pci_save_state(dev); + pci_disable_device(dev); + pci_set_power_state(dev, pci_choose_state(dev, state)); + + return 0; +} + +static int ssb_pcihost_resume(struct pci_dev *dev) +{ + int err; + + pci_set_power_state(dev, 0); + err = pci_enable_device(dev); + if (err) + return err; + pci_restore_state(dev); + + return 0; +} +#else /* CONFIG_PM */ +# define ssb_pcihost_suspend NULL +# define ssb_pcihost_resume NULL +#endif /* CONFIG_PM */ + +static int ssb_pcihost_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct ssb_bus *ssb; + int err = -ENOMEM; + const char *name; + + ssb = kzalloc(sizeof(*ssb), GFP_KERNEL); + if (!ssb) + goto out; + err = pci_enable_device(dev); + if (err) + goto err_kfree_ssb; + name = dev->dev.bus_id; + if (dev->driver && dev->driver->name) + name = dev->driver->name; + err = pci_request_regions(dev, name); + if (err) + goto err_pci_disable; + pci_set_master(dev); + + err = ssb_bus_pcibus_register(ssb, dev); + if (err) + goto err_pci_release_regions; + + pci_set_drvdata(dev, ssb); + +out: + return err; + +err_pci_release_regions: + pci_release_regions(dev); +err_pci_disable: + pci_disable_device(dev); +err_kfree_ssb: + kfree(ssb); + return err; +} + +static void ssb_pcihost_remove(struct pci_dev *dev) +{ + struct ssb_bus *ssb = pci_get_drvdata(dev); + + ssb_bus_unregister(ssb); + pci_release_regions(dev); + pci_disable_device(dev); + kfree(ssb); + pci_set_drvdata(dev, NULL); +} + +int ssb_pcihost_register(struct pci_driver *driver) +{ + driver->probe = ssb_pcihost_probe; + driver->remove = ssb_pcihost_remove; + driver->suspend = ssb_pcihost_suspend; + driver->resume = ssb_pcihost_resume; + + return pci_register_driver(driver); +} +EXPORT_SYMBOL(ssb_pcihost_register); diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c index 9e4a121c12..feaf1e57d0 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c @@ -17,6 +17,13 @@ #include #include +#ifdef CONFIG_SSB_PCMCIAHOST +# include +# include +# include +# include +#endif + #include "ssb_private.h" @@ -222,14 +229,32 @@ static void __iomem * ssb_ioremap(struct ssb_bus *bus, return mmio; } +static int we_support_multiple_80211_cores(struct ssb_bus *bus) +{ + /* More than one 802.11 core is only supported by special chips. + * There are chips with two 802.11 cores, but with dangling + * pins on the second core. Be careful and reject them here. + */ + +#ifdef CONFIG_SSB_PCIHOST + if (bus->bustype == SSB_BUSTYPE_PCI) { + if (bus->host_pci->vendor == PCI_VENDOR_ID_BROADCOM && + bus->host_pci->device == 0x4324) + return 1; + } +#endif /* CONFIG_SSB_PCIHOST */ + return 0; +} + int ssb_bus_scan(struct ssb_bus *bus, unsigned long baseaddr) { int err = -ENOMEM; void __iomem *mmio; u32 idhi, cc, rev, tmp; - int i; + int dev_i, i; struct ssb_device *dev; + int nr_80211_cores = 0; mmio = ssb_ioremap(bus, baseaddr); if (!mmio) @@ -293,11 +318,11 @@ int ssb_bus_scan(struct ssb_bus *bus, } /* Fetch basic information about each core/device */ - for (i = 0; i < bus->nr_devices; i++) { + for (i = 0, dev_i = 0; i < bus->nr_devices; i++) { err = scan_switchcore(bus, i); if (err) goto err_unmap; - dev = &(bus->devices[i]); + dev = &(bus->devices[dev_i]); idhi = scan_read32(bus, i, SSB_IDHIGH); dev->id.coreid = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT; @@ -306,8 +331,7 @@ int ssb_bus_scan(struct ssb_bus *bus, dev->id.vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT; dev->core_index = i; dev->bus = bus; - if ((dev->bus->bustype == SSB_BUSTYPE_PCI) && (bus->host_pci)) - dev->irq = bus->host_pci->irq; + dev->ops = bus->ops; ssb_dprintk(KERN_INFO PFX "Core %d found: %s " @@ -315,13 +339,19 @@ int ssb_bus_scan(struct ssb_bus *bus, i, ssb_core_name(dev->id.coreid), dev->id.coreid, dev->id.revision, dev->id.vendor); - dev->dev.bus = &ssb_bustype; - snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id), - "ssb%02x:%02x", bus->busnumber, i); - switch (dev->id.coreid) { + case SSB_DEV_80211: + nr_80211_cores++; + if (nr_80211_cores > 1) { + if (!we_support_multiple_80211_cores(bus)) { + ssb_dprintk(KERN_INFO PFX "Ignoring additional " + "802.11 core\n"); + continue; + } + } + break; case SSB_DEV_EXTIF: -#ifdef CONFIG_BCM947XX +#ifdef CONFIG_SSB_DRIVER_EXTIF if (bus->extif.dev) { ssb_printk(KERN_WARNING PFX "WARNING: Multiple EXTIFs found\n"); @@ -340,14 +370,14 @@ int ssb_bus_scan(struct ssb_bus *bus, break; case SSB_DEV_MIPS: case SSB_DEV_MIPS_3302: -#ifdef CONFIG_BCM947XX +#ifdef CONFIG_SSB_DRIVER_MIPS if (bus->mipscore.dev) { ssb_printk(KERN_WARNING PFX "WARNING: Multiple MIPS cores found\n"); break; } bus->mipscore.dev = dev; -#endif /* CONFIG_BCM947XX */ +#endif /* CONFIG_SSB_DRIVER_MIPS */ break; case SSB_DEV_PCI: case SSB_DEV_PCIE: @@ -363,7 +393,11 @@ int ssb_bus_scan(struct ssb_bus *bus, default: break; } + + dev_i++; } + bus->nr_devices = dev_i; + err = 0; out: return err; diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h b/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h index 59645f5a6f..ae1fc0633d 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h +++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h @@ -53,6 +53,7 @@ extern int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on); extern int ssb_pci_sprom_get(struct ssb_bus *bus); extern void ssb_pci_get_boardtype(struct ssb_bus *bus); +extern void ssb_pci_exit(struct ssb_bus *bus); extern int ssb_pci_init(struct ssb_bus *bus); extern const struct ssb_bus_ops ssb_pci_ops; @@ -80,6 +81,9 @@ static inline int ssb_pci_sprom_get(struct ssb_bus *bus) static inline void ssb_pci_get_boardtype(struct ssb_bus *bus) { } +static inline void ssb_pci_exit(struct ssb_bus *bus) +{ +} static inline int ssb_pci_init(struct ssb_bus *bus) { return 0; @@ -128,8 +132,12 @@ extern void ssb_iounmap(struct ssb_bus *ssb); /* core.c */ -extern struct bus_type ssb_bustype; extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m); +#ifdef CONFIG_SSB_PCIHOST +extern int ssb_devices_freeze(struct ssb_bus *bus); +extern int ssb_devices_thaw(struct ssb_bus *bus); +extern struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev); +#endif /* CONFIG_SSB_PCIHOST */ /* Ceiling division helper. Divides x by y. */ diff --git a/target/linux/brcm47xx-2.6/files/drivers/usb/host/ohci-ssb.c b/target/linux/brcm47xx-2.6/files/drivers/usb/host/ohci-ssb.c new file mode 100644 index 0000000000..2b3ef36b14 --- /dev/null +++ b/target/linux/brcm47xx-2.6/files/drivers/usb/host/ohci-ssb.c @@ -0,0 +1,254 @@ +/* + * Sonics Silicon Backplane + * Broadcom USB-core OHCI driver + * + * Copyright 2007 Michael Buesch + * + * Derived from the OHCI-PCI driver + * Copyright 1999 Roman Weissgaerber + * Copyright 2000-2002 David Brownell + * Copyright 1999 Linus Torvalds + * Copyright 1999 Gregory P. Smith + * + * Derived from the USBcore related parts of Broadcom-SB + * Copyright 2005 Broadcom Corporation + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include + + +#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29) + +struct ssb_ohci_device { + struct ohci_hcd ohci; /* _must_ be at the beginning. */ + + u32 enable_flags; +}; + + +static inline +struct ssb_ohci_device * hcd_to_ssb_ohci(struct usb_hcd *hcd) +{ + return (struct ssb_ohci_device *)(hcd->hcd_priv); +} + + +static const struct ssb_device_id ssb_ohci_table[] = { + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV), + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV), + SSB_DEVTABLE_END +}; +MODULE_DEVICE_TABLE(ssb, ssb_ohci_table); + + +static int ssb_ohci_reset(struct usb_hcd *hcd) +{ + struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); + struct ohci_hcd *ohci = &ohcidev->ohci; + int err; + + ohci_hcd_init(ohci); + err = ohci_init(ohci); + + return err; +} + +static int ssb_ohci_start(struct usb_hcd *hcd) +{ + struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); + struct ohci_hcd *ohci = &ohcidev->ohci; + int err; + + err = ohci_run(ohci); + if (err < 0) { + ohci_err(ohci, "can't start\n"); + ohci_stop(hcd); + } + + return err; +} + +#ifdef CONFIG_PM +static int ssb_ohci_hcd_suspend(struct usb_hcd *hcd, pm_message_t message) +{ + struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); + struct ohci_hcd *ohci = &ohcidev->ohci; + unsigned long flags; + + spin_lock_irqsave(&ohci->lock, flags); + + ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); + ohci_readl(ohci, &ohci->regs->intrdisable); /* commit write */ + + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) + ohci_usb_reset(ohci); + + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + spin_unlock_irqrestore(&ohci->lock, flags); + + return 0; +} + +static int ssb_ohci_hcd_resume(struct usb_hcd *hcd) +{ + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + usb_hcd_resume_root_hub(hcd); + return 0; +} +#endif /* CONFIG_PM */ + +static const struct hc_driver ssb_ohci_hc_driver = { + .description = "ssb-usb-ohci", + .product_desc = "SSB OHCI Controller", + .hcd_priv_size = sizeof(struct ssb_ohci_device), + + .irq = ohci_irq, + .flags = HCD_MEMORY | HCD_USB11, + + .reset = ssb_ohci_reset, + .start = ssb_ohci_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + +#ifdef CONFIG_PM + .suspend = ssb_ohci_hcd_suspend, + .resume = ssb_ohci_hcd_resume, +#endif + + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + .get_frame_number = ohci_get_frame, + + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, + +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + + .start_port_reset = ohci_start_port_reset, +}; + + +static void ssb_ohci_detach(struct ssb_device *dev) +{ + struct usb_hcd *hcd = ssb_get_drvdata(dev); + + usb_remove_hcd(hcd); + iounmap(hcd->regs); + usb_put_hcd(hcd); + ssb_device_disable(dev, 0); +} + +static int ssb_ohci_attach(struct ssb_device *dev) +{ + struct ssb_ohci_device *ohcidev; + struct usb_hcd *hcd; + int err = -ENOMEM; + u32 tmp, flags = 0; + + if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) + flags |= SSB_OHCI_TMSLOW_HOSTMODE; + + ssb_device_enable(dev, flags); + + hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, + dev->dev->bus_id); + if (!hcd) + goto err_dev_disable; + ohcidev = hcd_to_ssb_ohci(hcd); + ohcidev->enable_flags = flags; + + tmp = ssb_read32(dev, SSB_ADMATCH0); + hcd->rsrc_start = ssb_admatch_base(tmp); + hcd->rsrc_len = ssb_admatch_size(tmp); + hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) + goto err_put_hcd; + err = usb_add_hcd(hcd, dev->irq, IRQF_SHARED); + if (err) + goto err_iounmap; + + ssb_set_drvdata(dev, hcd); + + return err; + +err_iounmap: + iounmap(hcd->regs); +err_put_hcd: + usb_put_hcd(hcd); +err_dev_disable: + ssb_device_disable(dev, flags); + return err; +} + +static int ssb_ohci_probe(struct ssb_device *dev, + const struct ssb_device_id *id) +{ + int err; + u16 chipid_top; + + chipid_top = (dev->bus->chip_id & 0xFF00); + if (chipid_top != 0x4700 && + chipid_top != 0x5300) { + /* USBcores are only connected on embedded devices. */ + return -ENODEV; + } + /* TODO: Probably need more checks here whether the core is connected. */ + + if (usb_disabled()) + return -ENODEV; + + /* We currently always attach SSB_DEV_USB11_HOSTDEV + * as HOST OHCI. If we want to attach it as Client device, + * we must branch here and call into the (yet to + * be written) Client mode driver. Same for remove(). */ + + err = ssb_ohci_attach(dev); + + return err; +} + +static void ssb_ohci_remove(struct ssb_device *dev) +{ + ssb_ohci_detach(dev); +} + +#ifdef CONFIG_PM +static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state) +{ + ssb_device_disable(dev, 0); + + return 0; +} + +static int ssb_ohci_resume(struct ssb_device *dev) +{ + struct usb_hcd *hcd = ssb_get_drvdata(dev); + struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); + + ssb_device_enable(dev, ohcidev->enable_flags); + + return 0; +} +#else /* CONFIG_PM */ +# define ssb_ohci_suspend NULL +# define ssb_ohci_resume NULL +#endif /* CONFIG_PM */ + +static struct ssb_driver ssb_ohci_driver = { + .name = KBUILD_MODNAME, + .id_table = ssb_ohci_table, + .probe = ssb_ohci_probe, + .remove = ssb_ohci_remove, + .suspend = ssb_ohci_suspend, + .resume = ssb_ohci_resume, +}; diff --git a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb.h b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb.h index 7fdeae71cb..1ed3cbc1e5 100644 --- a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb.h +++ b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb.h @@ -6,6 +6,9 @@ #include #include #include +#ifdef CONFIG_SSB_PCIHOST +# include +#endif #include @@ -98,6 +101,17 @@ struct ssb_sprom { }; +struct ssb_device; +/* Lowlevel read/write operations on the device MMIO. + * Internal, don't use that outside of ssb. */ +struct ssb_bus_ops { + u16 (*read16)(struct ssb_device *dev, u16 offset); + u32 (*read32)(struct ssb_device *dev, u16 offset); + void (*write16)(struct ssb_device *dev, u16 offset, u16 value); + void (*write32)(struct ssb_device *dev, u16 offset, u32 value); +}; + + /* Core-ID values. */ #define SSB_DEV_CHIPCOMMON 0x800 #define SSB_DEV_ILINE20 0x801 @@ -149,18 +163,37 @@ struct ssb_device_id { #define SSB_ANY_ID 0xFFFF #define SSB_ANY_REV 0xFF +/* Some kernel subsystems poke with dev->drvdata, so we must use the + * following ugly workaround to get from struct device to struct ssb_device */ +struct __ssb_dev_wrapper { + struct device dev; + struct ssb_device *sdev; +}; struct ssb_device { - struct device dev; + /* Having a copy of the ops pointer in each dev struct + * is an optimization. */ + const struct ssb_bus_ops *ops; + + struct device *dev; struct ssb_bus *bus; struct ssb_device_id id; u8 core_index; unsigned int irq; + + /* Internal-only stuff follows. */ void *drvdata; /* Per-device data */ void *devtypedata; /* Per-devicetype (eg 802.11) data */ }; -#define dev_to_ssb_dev(_dev) container_of(_dev, struct ssb_device, dev) + +/* Go from struct device to struct ssb_device. */ +static inline +struct ssb_device * dev_to_ssb_dev(struct device *dev) +{ + struct __ssb_dev_wrapper *wrap = container_of(dev, struct __ssb_dev_wrapper, dev); + return wrap->sdev; +} /* Device specific user data */ static inline @@ -182,13 +215,6 @@ void * ssb_get_devtypedata(struct ssb_device *dev) return dev->devtypedata; } -struct ssb_bus_ops { - u16 (*read16)(struct ssb_device *dev, u16 offset); - u32 (*read32)(struct ssb_device *dev, u16 offset); - void (*write16)(struct ssb_device *dev, u16 offset, u16 value); - void (*write32)(struct ssb_device *dev, u16 offset, u32 value); -}; - struct ssb_driver { const char *name; @@ -218,7 +244,6 @@ enum ssb_bustype { SSB_BUSTYPE_SSB, /* This SSB bus is the system bus */ SSB_BUSTYPE_PCI, /* SSB is connected to PCI bus */ SSB_BUSTYPE_PCMCIA, /* SSB is connected to PCMCIA bus */ - //TODO SSB_BUSTYPE_JTAG, }; /* board_vendor */ @@ -238,12 +263,6 @@ enum ssb_bustype { #define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */ #define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */ -static inline u16 ssb_read16(struct ssb_device *dev, u16 offset); -static inline u32 ssb_read32(struct ssb_device *dev, u16 offset); -static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value); -static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value); -static inline u32 ssb_write32_masked(struct ssb_device *dev, u16 offset, u32 mask, u32 value); - #include #include #include @@ -269,6 +288,10 @@ struct ssb_bus { /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */ struct pcmcia_device *host_pcmcia; +#ifdef CONFIG_SSB_PCIHOST + struct mutex pci_sprom_mutex; +#endif + /* ID information about the PCB. */ u16 board_vendor; u16 board_type; @@ -328,32 +351,22 @@ void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags); void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags); +/* Device MMIO register read/write functions. */ static inline u16 ssb_read16(struct ssb_device *dev, u16 offset) { - return dev->bus->ops->read16(dev, offset); + return dev->ops->read16(dev, offset); } static inline u32 ssb_read32(struct ssb_device *dev, u16 offset) { - return dev->bus->ops->read32(dev, offset); + return dev->ops->read32(dev, offset); } static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value) { - dev->bus->ops->write16(dev, offset, value); + dev->ops->write16(dev, offset, value); } static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value) { - dev->bus->ops->write32(dev, offset, value); -} - -static inline u32 ssb_write32_masked(struct ssb_device *dev, - u16 offset, - u32 mask, - u32 value) -{ - value &= mask; - value |= ssb_read32(dev, offset) & ~mask; - ssb_write32(dev, offset, value); - return value; + dev->ops->write32(dev, offset, value); } @@ -366,6 +379,21 @@ extern u32 ssb_dma_translation(struct ssb_device *dev); extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask); +#ifdef CONFIG_SSB_PCIHOST +/* PCI-host wrapper driver */ +extern int ssb_pcihost_register(struct pci_driver *driver); +static inline void ssb_pcihost_unregister(struct pci_driver *driver) +{ + pci_unregister_driver(driver); +} +#endif /* CONFIG_SSB_PCIHOST */ + + +/* Bus-Power handling functions. */ +extern int ssb_bus_may_powerdown(struct ssb_bus *bus); +extern int ssb_bus_powerup(struct ssb_bus *bus, int dynamic_pctl); + + /* Various helper functions */ extern u32 ssb_admatch_base(u32 adm); extern u32 ssb_admatch_size(u32 adm); diff --git a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h index e0c0e61b80..8856590230 100644 --- a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h +++ b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h @@ -124,8 +124,8 @@ #define SSB_CHIPCO_GPIOOUT 0x0064 #define SSB_CHIPCO_GPIOOUTEN 0x0068 #define SSB_CHIPCO_GPIOCTL 0x006C -#define SSB_CHIPCO_GPIOINTPOL 0x0070 -#define SSB_CHIPCO_GPIOINTMASK 0x0074 +#define SSB_CHIPCO_GPIOPOL 0x0070 +#define SSB_CHIPCO_GPIOIRQ 0x0074 #define SSB_CHIPCO_WATCHDOG 0x0080 #define SSB_CHIPCO_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */ #define SSB_CHIPCO_GPIOTIMER_ONTIME_SHIFT 16 @@ -364,8 +364,6 @@ extern void ssb_chipcommon_init(struct ssb_chipcommon *cc); extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state); extern void ssb_chipco_resume(struct ssb_chipcommon *cc); -extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, u32 chip_id, - u32 *rate, u32 *plltype, u32 *n, u32 *m); extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, u32 *plltype, u32 *n, u32 *m); extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc, @@ -380,47 +378,6 @@ enum ssb_clkmode { extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, enum ssb_clkmode mode); - -/* GPIO functions */ -static inline u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc, - u32 mask) -{ - return ssb_read32(cc->dev, SSB_CHIPCO_GPIOIN) & mask; -} - -static inline u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc, - u32 mask, u32 value) -{ - return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUT, mask, value); -} - -static inline u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, - u32 mask, u32 value) -{ - return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUTEN, mask, value); -} - -static inline u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc, - u32 mask, u32 value) -{ - return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOCTL, mask, value); -} - -static inline u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc, - u32 mask, u32 value) -{ - return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOINTMASK, mask, value); -} - -static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc, - u32 mask, u32 value) -{ - return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOINTPOL, mask, value); -} -/* TODO: GPIO reservation */ - -extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks); - #ifdef CONFIG_SSB_SERIAL extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc, struct ssb_serial_port *ports); diff --git a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_extif.h b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_extif.h index 63add56620..278a637e86 100644 --- a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_extif.h +++ b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_extif.h @@ -159,37 +159,5 @@ struct ssb_extif { #define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */ -/* GPIO functions */ -static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif, - u32 mask) -{ - return ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN) & mask; -} - -static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif, - u32 mask, u32 value) -{ - return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUT(0), mask, value); -} - -static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif, - u32 mask, u32 value) -{ - return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUTEN(0), mask, value); -} - -static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, - u32 mask, u32 value) -{ - return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTPOL, mask, value); -} - -static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, - u32 mask, u32 value) -{ - return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTMASK, mask, value); -} - - #endif /* __KERNEL__ */ #endif /* LINUX_SSB_EXTIFCORE_H_ */ diff --git a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_mips.h b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_mips.h index 61c766550c..91f2373be4 100644 --- a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_mips.h +++ b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_driver_mips.h @@ -3,7 +3,7 @@ #ifdef __KERNEL__ -#ifdef CONFIG_BCM947XX +#ifdef CONFIG_SSB_DRIVER_MIPS struct ssb_device; @@ -22,17 +22,16 @@ struct ssb_mipscore { int nr_serial_ports; struct ssb_serial_port serial_ports[4]; - int flash_buswidth; u32 flash_window; u32 flash_window_size; }; extern void ssb_mipscore_init(struct ssb_mipscore *mcore); -extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore); + extern unsigned int ssb_mips_irq(struct ssb_device *dev); -#else /* CONFIG_BCM947XX */ +#else /* CONFIG_SSB_DRIVER_MIPS */ struct ssb_mipscore { }; @@ -42,7 +41,7 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore) { } -#endif /* CONFIG_BCM947XX */ +#endif /* CONFIG_SSB_DRIVER_MIPS */ #endif /* __KERNEL__ */ #endif /* LINUX_SSB_MIPSCORE_H_ */ diff --git a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_regs.h b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_regs.h index 6bb40464d4..e1c7ff78a8 100644 --- a/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_regs.h +++ b/target/linux/brcm47xx-2.6/files/include/linux/ssb/ssb_regs.h @@ -96,7 +96,8 @@ #define SSB_INTVEC_ENET1 0x00000040 /* Enable interrupts for enet 1 */ #define SSB_TMSLOW 0x0F98 /* SB Target State Low */ #define SSB_TMSLOW_RESET 0x00000001 /* Reset */ -#define SSB_TMSLOW_REJECT 0x00000002 /* Reject */ +#define SSB_TMSLOW_REJECT_22 0x00000002 /* Reject (Backplane rev 2.2) */ +#define SSB_TMSLOW_REJECT_23 0x00000004 /* Reject (Backplane rev 2.3) */ #define SSB_TMSLOW_CLOCK 0x00010000 /* Clock Enable */ #define SSB_TMSLOW_FGC 0x00020000 /* Force Gated Clocks On */ #define SSB_TMSLOW_PE 0x40000000 /* Power Management Enable */ diff --git a/target/linux/brcm47xx-2.6/patches/200-b44_ssb_fixup.patch b/target/linux/brcm47xx-2.6/patches/200-b44_ssb_fixup.patch new file mode 100644 index 0000000000..816d7e18b6 --- /dev/null +++ b/target/linux/brcm47xx-2.6/patches/200-b44_ssb_fixup.patch @@ -0,0 +1,256 @@ +Index: linux-2.6.22-rc4/drivers/net/b44.c +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/net/b44.c 2007-06-10 21:33:15.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/net/b44.c 2007-06-10 21:33:23.000000000 +0100 +@@ -128,7 +128,7 @@ + unsigned long offset, + enum dma_data_direction dir) + { +- dma_sync_single_range_for_device(&sdev->dev, dma_base, ++ dma_sync_single_range_for_device(sdev->dev, dma_base, + offset & dma_desc_align_mask, + dma_desc_sync_size, dir); + } +@@ -138,7 +138,7 @@ + unsigned long offset, + enum dma_data_direction dir) + { +- dma_sync_single_range_for_cpu(&sdev->dev, dma_base, ++ dma_sync_single_range_for_cpu(sdev->dev, dma_base, + offset & dma_desc_align_mask, + dma_desc_sync_size, dir); + } +@@ -563,7 +563,7 @@ + + BUG_ON(skb == NULL); + +- dma_unmap_single(&bp->sdev->dev, ++ dma_unmap_single(bp->sdev->dev, + pci_unmap_addr(rp, mapping), + skb->len, + DMA_TO_DEVICE); +@@ -603,7 +603,7 @@ + if (skb == NULL) + return -ENOMEM; + +- mapping = dma_map_single(&bp->sdev->dev, skb->data, ++ mapping = dma_map_single(bp->sdev->dev, skb->data, + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); + +@@ -613,18 +613,18 @@ + mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) { + /* Sigh... */ + if (!dma_mapping_error(mapping)) +- dma_unmap_single(&bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE); ++ dma_unmap_single(bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + skb = __dev_alloc_skb(RX_PKT_BUF_SZ,GFP_DMA); + if (skb == NULL) + return -ENOMEM; +- mapping = dma_map_single(&bp->sdev->dev, skb->data, ++ mapping = dma_map_single(bp->sdev->dev, skb->data, + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); + if (dma_mapping_error(mapping) || + mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) { + if (!dma_mapping_error(mapping)) +- dma_unmap_single(&bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE); ++ dma_unmap_single(bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + return -ENOMEM; + } +@@ -702,7 +702,7 @@ + dest_idx * sizeof(dest_desc), + DMA_BIDIRECTIONAL); + +- dma_sync_single_for_device(&bp->sdev->dev, le32_to_cpu(src_desc->addr), ++ dma_sync_single_for_device(bp->sdev->dev, le32_to_cpu(src_desc->addr), + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); + } +@@ -724,7 +724,7 @@ + struct rx_header *rh; + u16 len; + +- dma_sync_single_for_cpu(&bp->sdev->dev, map, ++ dma_sync_single_for_cpu(bp->sdev->dev, map, + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); + rh = (struct rx_header *) skb->data; +@@ -758,7 +758,7 @@ + skb_size = b44_alloc_rx_skb(bp, cons, bp->rx_prod); + if (skb_size < 0) + goto drop_it; +- dma_unmap_single(&bp->sdev->dev, map, ++ dma_unmap_single(bp->sdev->dev, map, + skb_size, DMA_FROM_DEVICE); + /* Leave out rx_header */ + skb_put(skb, len+bp->rx_offset); +@@ -931,22 +931,22 @@ + goto err_out; + } + +- mapping = dma_map_single(&bp->sdev->dev, skb->data, len, DMA_TO_DEVICE); ++ mapping = dma_map_single(bp->sdev->dev, skb->data, len, DMA_TO_DEVICE); + if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) { + /* Chip can't handle DMA to/from >1GB, use bounce buffer */ + if (!dma_mapping_error(mapping)) +- dma_unmap_single(&bp->sdev->dev, mapping, len, DMA_TO_DEVICE); ++ dma_unmap_single(bp->sdev->dev, mapping, len, DMA_TO_DEVICE); + + bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ, + GFP_ATOMIC|GFP_DMA); + if (!bounce_skb) + goto err_out; + +- mapping = dma_map_single(&bp->sdev->dev, bounce_skb->data, ++ mapping = dma_map_single(bp->sdev->dev, bounce_skb->data, + len, DMA_TO_DEVICE); + if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) { + if (!dma_mapping_error(mapping)) +- dma_unmap_single(&bp->sdev->dev, mapping, ++ dma_unmap_single(bp->sdev->dev, mapping, + len, DMA_TO_DEVICE); + dev_kfree_skb_any(bounce_skb); + goto err_out; +@@ -1046,7 +1046,7 @@ + + if (rp->skb == NULL) + continue; +- dma_unmap_single(&bp->sdev->dev, ++ dma_unmap_single(bp->sdev->dev, + pci_unmap_addr(rp, mapping), + RX_PKT_BUF_SZ, + DMA_FROM_DEVICE); +@@ -1060,7 +1060,7 @@ + + if (rp->skb == NULL) + continue; +- dma_unmap_single(&bp->sdev->dev, ++ dma_unmap_single(bp->sdev->dev, + pci_unmap_addr(rp, mapping), + rp->skb->len, + DMA_TO_DEVICE); +@@ -1085,12 +1085,12 @@ + memset(bp->tx_ring, 0, B44_TX_RING_BYTES); + + if (bp->flags & B44_FLAG_RX_RING_HACK) +- dma_sync_single_for_device(&bp->sdev->dev, bp->rx_ring_dma, ++ dma_sync_single_for_device(bp->sdev->dev, bp->rx_ring_dma, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); + + if (bp->flags & B44_FLAG_TX_RING_HACK) +- dma_sync_single_for_device(&bp->sdev->dev, bp->tx_ring_dma, ++ dma_sync_single_for_device(bp->sdev->dev, bp->tx_ring_dma, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); + +@@ -1112,24 +1112,24 @@ + bp->tx_buffers = NULL; + if (bp->rx_ring) { + if (bp->flags & B44_FLAG_RX_RING_HACK) { +- dma_unmap_single(&bp->sdev->dev, bp->rx_ring_dma, ++ dma_unmap_single(bp->sdev->dev, bp->rx_ring_dma, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); + kfree(bp->rx_ring); + } else +- dma_free_coherent(&bp->sdev->dev, DMA_TABLE_BYTES, ++ dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES, + bp->rx_ring, bp->rx_ring_dma); + bp->rx_ring = NULL; + bp->flags &= ~B44_FLAG_RX_RING_HACK; + } + if (bp->tx_ring) { + if (bp->flags & B44_FLAG_TX_RING_HACK) { +- dma_unmap_single(&bp->sdev->dev, bp->tx_ring_dma, ++ dma_unmap_single(bp->sdev->dev, bp->tx_ring_dma, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); + kfree(bp->tx_ring); + } else +- dma_free_coherent(&bp->sdev->dev, DMA_TABLE_BYTES, ++ dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES, + bp->tx_ring, bp->tx_ring_dma); + bp->tx_ring = NULL; + bp->flags &= ~B44_FLAG_TX_RING_HACK; +@@ -1155,7 +1155,7 @@ + goto out_err; + + size = DMA_TABLE_BYTES; +- bp->rx_ring = dma_alloc_coherent(&bp->sdev->dev, size, &bp->rx_ring_dma, GFP_ATOMIC); ++ bp->rx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->rx_ring_dma, GFP_ATOMIC); + if (!bp->rx_ring) { + /* Allocation may have failed due to pci_alloc_consistent + insisting on use of GFP_DMA, which is more restrictive +@@ -1167,7 +1167,7 @@ + if (!rx_ring) + goto out_err; + +- rx_ring_dma = dma_map_single(&bp->sdev->dev, rx_ring, ++ rx_ring_dma = dma_map_single(bp->sdev->dev, rx_ring, + DMA_TABLE_BYTES, + DMA_BIDIRECTIONAL); + +@@ -1182,7 +1182,7 @@ + bp->flags |= B44_FLAG_RX_RING_HACK; + } + +- bp->tx_ring = dma_alloc_coherent(&bp->sdev->dev, size, &bp->tx_ring_dma, GFP_ATOMIC); ++ bp->tx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->tx_ring_dma, GFP_ATOMIC); + if (!bp->tx_ring) { + /* Allocation may have failed due to dma_alloc_coherent + insisting on use of GFP_DMA, which is more restrictive +@@ -1194,7 +1194,7 @@ + if (!tx_ring) + goto out_err; + +- tx_ring_dma = dma_map_single(&bp->sdev->dev, tx_ring, ++ tx_ring_dma = dma_map_single(bp->sdev->dev, tx_ring, + DMA_TABLE_BYTES, + DMA_TO_DEVICE); + +@@ -2314,13 +2314,13 @@ + + dev = alloc_etherdev(sizeof(*bp)); + if (!dev) { +- dev_err(&sdev->dev, "Etherdev alloc failed, aborting.\n"); ++ dev_err(sdev->dev, "Etherdev alloc failed, aborting.\n"); + err = -ENOMEM; + goto out; + } + + SET_MODULE_OWNER(dev); +- SET_NETDEV_DEV(dev,&sdev->dev); ++ SET_NETDEV_DEV(dev,sdev->dev); + + /* No interesting netdevice features in this card... */ + dev->features |= 0; +@@ -2358,7 +2358,7 @@ + + err = b44_get_invariants(bp); + if (err) { +- dev_err(&sdev->dev, ++ dev_err(sdev->dev, + "Problem fetching invariants of chip, aborting.\n"); + goto err_out_free_dev; + } +@@ -2379,7 +2379,7 @@ + + err = register_netdev(dev); + if (err) { +- dev_err(&sdev->dev, "Cannot register net device, aborting.\n"); ++ dev_err(sdev->dev, "Cannot register net device, aborting.\n"); + goto out; + } + +@@ -2458,7 +2458,6 @@ + rc = request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev); + if (rc) { + printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name); +- pci_disable_device(pdev); + return rc; + } + diff --git a/target/linux/brcm47xx-2.6/patches/205-ssb_integrate.patch b/target/linux/brcm47xx-2.6/patches/205-ssb_integrate.patch new file mode 100644 index 0000000000..67882454d8 --- /dev/null +++ b/target/linux/brcm47xx-2.6/patches/205-ssb_integrate.patch @@ -0,0 +1,78 @@ +Index: linux-2.6.22-rc4/drivers/usb/host/Kconfig +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/usb/host/Kconfig 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/usb/host/Kconfig 2007-06-10 21:33:24.000000000 +0100 +@@ -142,6 +142,19 @@ + Enables support for PCI-bus plug-in USB controller cards. + If unsure, say Y. + ++config USB_OHCI_HCD_SSB ++ bool "OHCI support for the Broadcom SSB OHCI core (embedded systems only)" ++ depends on USB_OHCI_HCD && ((USB_OHCI_HCD=m && SSB) || (USB_OHCI_HCD=y && SSB=y)) && EXPERIMENTAL ++ default n ++ ---help--- ++ Support for the Sonics Silicon Backplane (SSB) attached ++ Broadcom USB OHCI core. ++ ++ This device is only present in some embedded devices with ++ Broadcom based SSB bus. ++ ++ If unsure, say N. ++ + config USB_OHCI_BIG_ENDIAN_DESC + bool + depends on USB_OHCI_HCD +Index: linux-2.6.22-rc4/drivers/usb/host/ohci-hcd.c +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/usb/host/ohci-hcd.c 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/usb/host/ohci-hcd.c 2007-06-10 21:33:24.000000000 +0100 +@@ -920,11 +920,17 @@ + #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_sb_driver + #endif + ++#ifdef CONFIG_USB_OHCI_HCD_SSB ++#include "ohci-ssb.c" ++#define SSB_OHCI_DRIVER ssb_ohci_driver ++#endif ++ + #if !defined(PCI_DRIVER) && \ + !defined(PLATFORM_DRIVER) && \ + !defined(OF_PLATFORM_DRIVER) && \ + !defined(SA1111_DRIVER) && \ +- !defined(PS3_SYSTEM_BUS_DRIVER) ++ !defined(PS3_SYSTEM_BUS_DRIVER) && \ ++ !defined(SSB_OHCI_DRIVER) + #error "missing bus glue for ohci-hcd" + #endif + +@@ -972,10 +978,20 @@ + goto error_pci; + #endif + ++#ifdef SSB_OHCI_DRIVER ++ retval = ssb_driver_register(&SSB_OHCI_DRIVER); ++ if (retval) ++ goto error_ssb; ++#endif ++ + return retval; + + /* Error path */ ++#ifdef SSB_OHCI_DRIVER ++ error_ssb: ++#endif + #ifdef PCI_DRIVER ++ pci_unregister_driver(&PCI_DRIVER); + error_pci: + #endif + #ifdef SA1111_DRIVER +@@ -1001,6 +1017,9 @@ + + static void __exit ohci_hcd_mod_exit(void) + { ++#ifdef SSB_OHCI_DRIVER ++ ssb_driver_unregister(&SSB_OHCI_DRIVER); ++#endif + #ifdef PCI_DRIVER + pci_unregister_driver(&PCI_DRIVER); + #endif diff --git a/target/linux/brcm47xx-2.6/patches/210-ssb_merge.patch b/target/linux/brcm47xx-2.6/patches/210-ssb_merge.patch new file mode 100644 index 0000000000..21986b3426 --- /dev/null +++ b/target/linux/brcm47xx-2.6/patches/210-ssb_merge.patch @@ -0,0 +1,421 @@ +Index: linux-2.6.22-rc4/drivers/ssb/driver_chipcommon.c +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/ssb/driver_chipcommon.c 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/ssb/driver_chipcommon.c 2007-06-10 21:33:25.000000000 +0100 +@@ -264,6 +264,31 @@ + ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); + } + ++/* TODO: These two functions are a clear candidate for merging, but one gets ++ * the processor clock, and the other gets the bus clock. ++ */ ++void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, ++ u32 *plltype, u32 *n, u32 *m) ++{ ++ *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); ++ *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); ++ switch (*plltype) { ++ case SSB_PLLTYPE_2: ++ case SSB_PLLTYPE_4: ++ case SSB_PLLTYPE_6: ++ case SSB_PLLTYPE_7: ++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); ++ break; ++ case SSB_PLLTYPE_3: ++ /* 5350 uses m2 to control mips */ ++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); ++ break; ++ default: ++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); ++ break; ++ } ++} ++ + void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, + u32 *plltype, u32 *n, u32 *m) + { +@@ -400,3 +425,13 @@ + return nr_ports; + } + #endif /* CONFIG_SSB_SERIAL */ ++ ++/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */ ++int ++ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks) ++{ ++ /* instant NMI */ ++ chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks); ++ return 0; ++} ++EXPORT_SYMBOL(ssb_chipco_watchdog); +Index: linux-2.6.22-rc4/drivers/ssb/driver_mipscore.c +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/ssb/driver_mipscore.c 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/ssb/driver_mipscore.c 2007-06-10 21:33:25.000000000 +0100 +@@ -4,6 +4,7 @@ + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch ++ * Copyright 2006, 2007, Felix Fietkau + * + * Licensed under the GNU/GPL. See COPYING for details. + */ +@@ -31,6 +32,16 @@ + ssb_write32(mcore->dev, offset, value); + } + ++static inline u32 extif_read32(struct ssb_extif *extif, u16 offset) ++{ ++ return ssb_read32(extif->dev, offset); ++} ++ ++static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value) ++{ ++ ssb_write32(extif->dev, offset, value); ++} ++ + static const u32 ipsflag_irq_mask[] = { + 0, + SSB_IPSFLAG_IRQ1, +@@ -118,9 +129,9 @@ + } + + /* XXX: leave here or move into separate extif driver? */ +-static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports) ++static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports) + { +- ++ return 0; + } + + +@@ -174,23 +185,76 @@ + { + struct ssb_bus *bus = mcore->dev->bus; + ++ mcore->flash_buswidth = 2; + if (bus->chipco.dev) { + mcore->flash_window = 0x1c000000; +- mcore->flash_window_size = 0x800000; ++ mcore->flash_window_size = 0x02000000; ++ if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG) ++ & SSB_CHIPCO_CFG_DS16) == 0) ++ mcore->flash_buswidth = 1; + } else { + mcore->flash_window = 0x1fc00000; +- mcore->flash_window_size = 0x400000; ++ mcore->flash_window_size = 0x00400000; + } + } + ++static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns) ++{ ++ u32 tmp; ++ ++ /* Initialize extif so we can get to the LEDs and external UART */ ++ extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN); ++ ++ /* Set timing for the flash */ ++ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; ++ tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; ++ tmp |= ceildiv(120, ns); ++ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); ++ ++ /* Set programmable interface timing for external uart */ ++ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; ++ tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; ++ tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; ++ tmp |= ceildiv(120, ns); ++ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); ++} + +-static void ssb_cpu_clock(struct ssb_mipscore *mcore) ++static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif, ++ u32 *pll_type, u32 *n, u32 *m) + { ++ *pll_type = SSB_PLLTYPE_1; ++ *n = extif_read32(extif, SSB_EXTIF_CLOCK_N); ++ *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB); + } + +-void ssb_mipscore_init(struct ssb_mipscore *mcore) ++u32 ssb_cpu_clock(struct ssb_mipscore *mcore) + { + struct ssb_bus *bus = mcore->dev->bus; ++ u32 pll_type, n, m, rate = 0; ++ ++ if (bus->extif.dev) { ++ ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m); ++ } else if (bus->chipco.dev) { ++ ssb_chipco_get_clockcpu(&bus->chipco, &pll_type, &n, &m); ++ } else ++ return 0; ++ ++ if ((pll_type == SSB_PLLTYPE_5) || (bus->chip_id == 0x5365)) { ++ rate = 200000000; ++ } else { ++ rate = ssb_calc_clock_rate(pll_type, n, m); ++ } ++ ++ if (pll_type == SSB_PLLTYPE_6) { ++ rate *= 2; ++ } ++ ++ return rate; ++} ++ ++void ssb_mipscore_init(struct ssb_mipscore *mcore) ++{ ++ struct ssb_bus *bus; + struct ssb_device *dev; + unsigned long hz, ns; + unsigned int irq, i; +@@ -198,6 +262,8 @@ + if (!mcore->dev) + return; /* We don't have a MIPS core */ + ++ bus = mcore->dev->bus; ++ + ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n"); + + hz = ssb_clockspeed(bus); +@@ -205,28 +271,9 @@ + hz = 100000000; + ns = 1000000000 / hz; + +-//TODO +-#if 0 +- if (have EXTIF) { +- /* Initialize extif so we can get to the LEDs and external UART */ +- W_REG(&eir->prog_config, CF_EN); +- +- /* Set timing for the flash */ +- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */ +- tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */ +- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */ +- W_REG(&eir->prog_waitcount, tmp); /* 0x01020a0c for a 100Mhz clock */ +- +- /* Set programmable interface timing for external uart */ +- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */ +- tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */ +- tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */ +- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */ +- W_REG(&eir->prog_waitcount, tmp); +- } +- else... chipcommon +-#endif +- if (bus->chipco.dev) ++ if (bus->extif.dev) ++ ssb_extif_timing_init(&bus->extif, ns); ++ else if (bus->chipco.dev) + ssb_chipco_timing_init(&bus->chipco, ns); + + /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */ +@@ -256,3 +303,5 @@ + ssb_mips_serial_init(mcore); + ssb_mips_flash_detect(mcore); + } ++ ++EXPORT_SYMBOL(ssb_mips_irq); +Index: linux-2.6.22-rc4/drivers/ssb/driver_pcicore.c +=================================================================== +--- linux-2.6.22-rc4.orig/drivers/ssb/driver_pcicore.c 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/drivers/ssb/driver_pcicore.c 2007-06-10 21:33:25.000000000 +0100 +@@ -93,6 +93,9 @@ + + /* Enable PCI bridge BAR1 prefetch and burst */ + pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3); ++ ++ /* Make sure our latency is high enough to handle the devices behind us */ ++ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8); + } + DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge); + +@@ -110,7 +113,7 @@ + + if (unlikely(pc->cardbusmode && dev > 1)) + goto out; +- if (bus == 0) { ++ if (bus == 0) {//FIXME busnumber ok? + /* Type 0 transaction */ + if (unlikely(dev >= SSB_PCI_SLOT_MAX)) + goto out; +@@ -224,7 +227,7 @@ + val = *((const u32 *)buf); + break; + } +- writel(*((const u32 *)buf), mmio); ++ writel(val, mmio); + + err = 0; + unmap: +@@ -307,6 +310,8 @@ + udelay(150); + val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */ + pcicore_write32(pc, SSB_PCICORE_CTL, val); ++ val = SSB_PCICORE_ARBCTL_INTERN; ++ pcicore_write32(pc, SSB_PCICORE_ARBCTL, val); + udelay(1); + + //TODO cardbus mode +@@ -336,6 +341,7 @@ + * The following needs change, if we want to port hostmode + * to non-MIPS platform. */ + set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000)); ++ mdelay(300); + register_pci_controller(&ssb_pcicore_controller); + } + +Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_chipcommon.h +=================================================================== +--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-10 21:33:25.000000000 +0100 +@@ -364,6 +364,8 @@ + extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state); + extern void ssb_chipco_resume(struct ssb_chipcommon *cc); + ++extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, ++ u32 *plltype, u32 *n, u32 *m); + extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, + u32 *plltype, u32 *n, u32 *m); + extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc, +@@ -378,6 +380,46 @@ + extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, + enum ssb_clkmode mode); + ++/* GPIO functions */ ++static inline u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc, ++ u32 mask) ++{ ++ return ssb_read32(cc->dev, SSB_CHIPCO_GPIOIN) & mask; ++} ++ ++static inline u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUT, mask, value); ++} ++ ++static inline u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUTEN, mask, value); ++} ++ ++static inline u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOCTL, mask, value); ++} ++ ++static inline u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOIRQ, mask, value); ++} ++ ++static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOPOL, mask, value); ++} ++/* TODO: GPIO reservation */ ++ ++extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks); ++ + #ifdef CONFIG_SSB_SERIAL + extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc, + struct ssb_serial_port *ports); +Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_extif.h +=================================================================== +--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_extif.h 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_extif.h 2007-06-10 21:33:25.000000000 +0100 +@@ -158,6 +158,36 @@ + /* watchdog */ + #define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */ + ++/* GPIO functions */ ++static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif, ++ u32 mask) ++{ ++ return ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN) & mask; ++} ++ ++static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUT(0), mask, value); ++} ++ ++static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUTEN(0), mask, value); ++} ++ ++static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTPOL, mask, value); ++} ++ ++static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, ++ u32 mask, u32 value) ++{ ++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTMASK, mask, value); ++} + + #endif /* __KERNEL__ */ + #endif /* LINUX_SSB_EXTIFCORE_H_ */ +Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_mips.h +=================================================================== +--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_mips.h 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_mips.h 2007-06-10 21:33:25.000000000 +0100 +@@ -22,11 +22,13 @@ + int nr_serial_ports; + struct ssb_serial_port serial_ports[4]; + ++ int flash_buswidth; + u32 flash_window; + u32 flash_window_size; + }; + + extern void ssb_mipscore_init(struct ssb_mipscore *mcore); ++extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore); + + extern unsigned int ssb_mips_irq(struct ssb_device *dev); + +Index: linux-2.6.22-rc4/include/linux/ssb/ssb.h +=================================================================== +--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb.h 2007-06-10 21:32:11.000000000 +0100 ++++ linux-2.6.22-rc4/include/linux/ssb/ssb.h 2007-06-10 21:33:25.000000000 +0100 +@@ -263,6 +263,12 @@ + #define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */ + #define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */ + ++static inline u16 ssb_read16(struct ssb_device *dev, u16 offset); ++static inline u32 ssb_read32(struct ssb_device *dev, u16 offset); ++static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value); ++static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value); ++static inline u32 ssb_write32_masked(struct ssb_device *dev, u16 offset, u32 mask, u32 value); ++ + #include + #include + #include +@@ -369,6 +375,16 @@ + dev->ops->write32(dev, offset, value); + } + ++static inline u32 ssb_write32_masked(struct ssb_device *dev, ++ u16 offset, ++ u32 mask, ++ u32 value) ++{ ++ value &= mask; ++ value |= ssb_read32(dev, offset) & ~mask; ++ ssb_write32(dev, offset, value); ++ return value; ++} + + /* Translation (routing) bits that need to be ORed to DMA + * addresses before they are given to a device. */