From: Kou Ishizaki Date: Sat, 17 Mar 2007 20:57:25 +0000 (+0100) Subject: scc_pata: dependency fix X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a1067db8ebae6817a66fd4e40e34699f402c2544;p=openwrt%2Fstaging%2Fblogic.git scc_pata: dependency fix This patch fixes: * the dependency of scc_pata on BLK_DEV_IDEDMA_PCI * incorrect link to ide-core * move scc_pata from ide/ppc to ide/pci Signed-off-by: Kou Ishizaki Signed-off-by: Akira Iguchi Cc: Al Viro , Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 3f76987d818a..98a1ff23c34a 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -769,6 +769,14 @@ config BLK_DEV_TC86C001 help This driver adds support for Toshiba TC86C001 GOKU-S chip. +config BLK_DEV_CELLEB + tristate "Toshiba's Cell Reference Set IDE support" + depends on PPC_CELLEB + help + This driver provides support for the built-in IDE controller on + Toshiba Cell Reference Board. + If unsure, say Y. + endif config BLK_DEV_IDE_PMAC @@ -800,14 +808,6 @@ config BLK_DEV_IDEDMA_PMAC to transfer data to and from memory. Saying Y is safe and improves performance. -config BLK_DEV_IDE_CELLEB - bool "Toshiba's Cell Reference Set IDE support" - depends on PPC_CELLEB && IDE=y - help - This driver provides support for the built-in IDE controller on - Toshiba Cell Reference Board. - If unsure, say Y. - config BLK_DEV_IDE_SWARM tristate "IDE for Sibyte evaluation boards" depends on SIBYTE_SB1xxx_SOC diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index 28feedfbd21d..d9f029e8ff74 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -37,7 +37,6 @@ ide-core-$(CONFIG_BLK_DEV_Q40IDE) += legacy/q40ide.o # built-in only drivers from ppc/ ide-core-$(CONFIG_BLK_DEV_MPC8xx_IDE) += ppc/mpc8xx.o ide-core-$(CONFIG_BLK_DEV_IDE_PMAC) += ppc/pmac.o -ide-core-$(CONFIG_BLK_DEV_IDE_CELLEB) += ppc/scc_pata.o # built-in only drivers from h8300/ ide-core-$(CONFIG_H8300) += h8300/ide-h8300.o diff --git a/drivers/ide/pci/Makefile b/drivers/ide/pci/Makefile index 6591ff4753cb..95d1ea8f1f14 100644 --- a/drivers/ide/pci/Makefile +++ b/drivers/ide/pci/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_BLK_DEV_AEC62XX) += aec62xx.o obj-$(CONFIG_BLK_DEV_ALI15X3) += alim15x3.o obj-$(CONFIG_BLK_DEV_AMD74XX) += amd74xx.o obj-$(CONFIG_BLK_DEV_ATIIXP) += atiixp.o +obj-$(CONFIG_BLK_DEV_CELLEB) += scc_pata.o obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c new file mode 100644 index 000000000000..f84bf791f72e --- /dev/null +++ b/drivers/ide/pci/scc_pata.c @@ -0,0 +1,858 @@ +/* + * Support for IDE interfaces on Celleb platform + * + * (C) Copyright 2006 TOSHIBA CORPORATION + * + * This code is based on drivers/ide/pci/siimage.c: + * Copyright (C) 2001-2002 Andre Hedrick + * Copyright (C) 2003 Red Hat + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4 + +#define SCC_PATA_NAME "scc IDE" + +#define TDVHSEL_MASTER 0x00000001 +#define TDVHSEL_SLAVE 0x00000004 + +#define MODE_JCUSFEN 0x00000080 + +#define CCKCTRL_ATARESET 0x00040000 +#define CCKCTRL_BUFCNT 0x00020000 +#define CCKCTRL_CRST 0x00010000 +#define CCKCTRL_OCLKEN 0x00000100 +#define CCKCTRL_ATACLKOEN 0x00000002 +#define CCKCTRL_LCLKEN 0x00000001 + +#define QCHCD_IOS_SS 0x00000001 + +#define QCHSD_STPDIAG 0x00020000 + +#define INTMASK_MSK 0xD1000012 +#define INTSTS_SERROR 0x80000000 +#define INTSTS_PRERR 0x40000000 +#define INTSTS_RERR 0x10000000 +#define INTSTS_ICERR 0x01000000 +#define INTSTS_BMSINT 0x00000010 +#define INTSTS_BMHE 0x00000008 +#define INTSTS_IOIRQS 0x00000004 +#define INTSTS_INTRQ 0x00000002 +#define INTSTS_ACTEINT 0x00000001 + +#define ECMODE_VALUE 0x01 + +static struct scc_ports { + unsigned long ctl, dma; + unsigned char hwif_id; /* for removing hwif from system */ +} scc_ports[MAX_HWIFS]; + +/* PIO transfer mode table */ +/* JCHST */ +static unsigned long JCHSTtbl[2][7] = { + {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00}, /* 100MHz */ + {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00} /* 133MHz */ +}; + +/* JCHHT */ +static unsigned long JCHHTtbl[2][7] = { + {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, /* 100MHz */ + {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00} /* 133MHz */ +}; + +/* JCHCT */ +static unsigned long JCHCTtbl[2][7] = { + {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00}, /* 100MHz */ + {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00} /* 133MHz */ +}; + + +/* DMA transfer mode table */ +/* JCHDCTM/JCHDCTS */ +static unsigned long JCHDCTxtbl[2][7] = { + {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00}, /* 100MHz */ + {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00} /* 133MHz */ +}; + +/* JCSTWTM/JCSTWTS */ +static unsigned long JCSTWTxtbl[2][7] = { + {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00}, /* 100MHz */ + {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ +}; + +/* JCTSS */ +static unsigned long JCTSStbl[2][7] = { + {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00}, /* 100MHz */ + {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05} /* 133MHz */ +}; + +/* JCENVT */ +static unsigned long JCENVTtbl[2][7] = { + {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00}, /* 100MHz */ + {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ +}; + +/* JCACTSELS/JCACTSELM */ +static unsigned long JCACTSELtbl[2][7] = { + {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00}, /* 100MHz */ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} /* 133MHz */ +}; + + +static u8 scc_ide_inb(unsigned long port) +{ + u32 data = in_be32((void*)port); + return (u8)data; +} + +static u16 scc_ide_inw(unsigned long port) +{ + u32 data = in_be32((void*)port); + return (u16)data; +} + +static void scc_ide_insw(unsigned long port, void *addr, u32 count) +{ + u16 *ptr = (u16 *)addr; + while (count--) { + *ptr++ = le16_to_cpu(in_be32((void*)port)); + } +} + +static void scc_ide_insl(unsigned long port, void *addr, u32 count) +{ + u16 *ptr = (u16 *)addr; + while (count--) { + *ptr++ = le16_to_cpu(in_be32((void*)port)); + *ptr++ = le16_to_cpu(in_be32((void*)port)); + } +} + +static void scc_ide_outb(u8 addr, unsigned long port) +{ + out_be32((void*)port, addr); +} + +static void scc_ide_outw(u16 addr, unsigned long port) +{ + out_be32((void*)port, addr); +} + +static void +scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port) +{ + ide_hwif_t *hwif = HWIF(drive); + + out_be32((void*)port, addr); + __asm__ __volatile__("eieio":::"memory"); + in_be32((void*)(hwif->dma_base + 0x01c)); + __asm__ __volatile__("eieio":::"memory"); +} + +static void +scc_ide_outsw(unsigned long port, void *addr, u32 count) +{ + u16 *ptr = (u16 *)addr; + while (count--) { + out_be32((void*)port, cpu_to_le16(*ptr++)); + } +} + +static void +scc_ide_outsl(unsigned long port, void *addr, u32 count) +{ + u16 *ptr = (u16 *)addr; + while (count--) { + out_be32((void*)port, cpu_to_le16(*ptr++)); + out_be32((void*)port, cpu_to_le16(*ptr++)); + } +} + +/** + * scc_ratemask - Compute available modes + * @drive: IDE drive + * + * Compute the available speeds for the devices on the interface. + * Enforce UDMA33 as a limit if there is no 80pin cable present. + */ + +static u8 scc_ratemask(ide_drive_t *drive) +{ + u8 mode = 4; + + if (!eighty_ninty_three(drive)) + mode = min(mode, (u8)1); + return mode; +} + +/** + * scc_tuneproc - tune a drive PIO mode + * @drive: drive to tune + * @mode_wanted: the target operating mode + * + * Load the timing settings for this device mode into the + * controller. + */ + +static void scc_tuneproc(ide_drive_t *drive, byte mode_wanted) +{ + ide_hwif_t *hwif = HWIF(drive); + struct scc_ports *ports = ide_get_hwifdata(hwif); + unsigned long ctl_base = ports->ctl; + unsigned long cckctrl_port = ctl_base + 0xff0; + unsigned long piosht_port = ctl_base + 0x000; + unsigned long pioct_port = ctl_base + 0x004; + unsigned long reg; + unsigned char speed = XFER_PIO_0; + int offset; + + mode_wanted = ide_get_best_pio_mode(drive, mode_wanted, 4, NULL); + switch (mode_wanted) { + case 4: + speed = XFER_PIO_4; + break; + case 3: + speed = XFER_PIO_3; + break; + case 2: + speed = XFER_PIO_2; + break; + case 1: + speed = XFER_PIO_1; + break; + case 0: + default: + speed = XFER_PIO_0; + break; + } + + reg = in_be32((void __iomem *)cckctrl_port); + if (reg & CCKCTRL_ATACLKOEN) { + offset = 1; /* 133MHz */ + } else { + offset = 0; /* 100MHz */ + } + reg = JCHSTtbl[offset][mode_wanted] << 16 | JCHHTtbl[offset][mode_wanted]; + out_be32((void __iomem *)piosht_port, reg); + reg = JCHCTtbl[offset][mode_wanted]; + out_be32((void __iomem *)pioct_port, reg); + + ide_config_drive_speed(drive, speed); +} + +/** + * scc_tune_chipset - tune a drive DMA mode + * @drive: Drive to set up + * @xferspeed: speed we want to achieve + * + * Load the timing settings for this device mode into the + * controller. + */ + +static int scc_tune_chipset(ide_drive_t *drive, byte xferspeed) +{ + ide_hwif_t *hwif = HWIF(drive); + u8 speed = ide_rate_filter(scc_ratemask(drive), xferspeed); + struct scc_ports *ports = ide_get_hwifdata(hwif); + unsigned long ctl_base = ports->ctl; + unsigned long cckctrl_port = ctl_base + 0xff0; + unsigned long mdmact_port = ctl_base + 0x008; + unsigned long mcrcst_port = ctl_base + 0x00c; + unsigned long sdmact_port = ctl_base + 0x010; + unsigned long scrcst_port = ctl_base + 0x014; + unsigned long udenvt_port = ctl_base + 0x018; + unsigned long tdvhsel_port = ctl_base + 0x020; + int is_slave = (&hwif->drives[1] == drive); + int offset, idx; + unsigned long reg; + unsigned long jcactsel; + + reg = in_be32((void __iomem *)cckctrl_port); + if (reg & CCKCTRL_ATACLKOEN) { + offset = 1; /* 133MHz */ + } else { + offset = 0; /* 100MHz */ + } + + switch (speed) { + case XFER_UDMA_6: + idx = 6; + break; + case XFER_UDMA_5: + idx = 5; + break; + case XFER_UDMA_4: + idx = 4; + break; + case XFER_UDMA_3: + idx = 3; + break; + case XFER_UDMA_2: + idx = 2; + break; + case XFER_UDMA_1: + idx = 1; + break; + case XFER_UDMA_0: + idx = 0; + break; + default: + return 1; + } + + jcactsel = JCACTSELtbl[offset][idx]; + if (is_slave) { + out_be32((void __iomem *)sdmact_port, JCHDCTxtbl[offset][idx]); + out_be32((void __iomem *)scrcst_port, JCSTWTxtbl[offset][idx]); + jcactsel = jcactsel << 2; + out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_SLAVE) | jcactsel); + } else { + out_be32((void __iomem *)mdmact_port, JCHDCTxtbl[offset][idx]); + out_be32((void __iomem *)mcrcst_port, JCSTWTxtbl[offset][idx]); + out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_MASTER) | jcactsel); + } + reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx]; + out_be32((void __iomem *)udenvt_port, reg); + + return ide_config_drive_speed(drive, speed); +} + +/** + * scc_config_chipset_for_dma - configure for DMA + * @drive: drive to configure + * + * Called by scc_config_drive_for_dma(). + */ + +static int scc_config_chipset_for_dma(ide_drive_t *drive) +{ + u8 speed = ide_dma_speed(drive, scc_ratemask(drive)); + + if (!speed) + return 0; + + if (scc_tune_chipset(drive, speed)) + return 0; + + return ide_dma_enable(drive); +} + +/** + * scc_configure_drive_for_dma - set up for DMA transfers + * @drive: drive we are going to set up + * + * Set up the drive for DMA, tune the controller and drive as + * required. + * If the drive isn't suitable for DMA or we hit other problems + * then we will drop down to PIO and set up PIO appropriately. + * (return 1) + */ + +static int scc_config_drive_for_dma(ide_drive_t *drive) +{ + if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive)) + return 0; + + if (ide_use_fast_pio(drive)) + scc_tuneproc(drive, 4); + + return -1; +} + +/** + * scc_ide_dma_setup - begin a DMA phase + * @drive: target device + * + * Build an IDE DMA PRD (IDE speak for scatter gather table) + * and then set up the DMA transfer registers. + * + * Returns 0 on success. If a PIO fallback is required then 1 + * is returned. + */ + +static int scc_dma_setup(ide_drive_t *drive) +{ + ide_hwif_t *hwif = drive->hwif; + struct request *rq = HWGROUP(drive)->rq; + unsigned int reading; + u8 dma_stat; + + if (rq_data_dir(rq)) + reading = 0; + else + reading = 1 << 3; + + /* fall back to pio! */ + if (!ide_build_dmatable(drive, rq)) { + ide_map_sg(drive, rq); + return 1; + } + + /* PRD table */ + out_be32((void __iomem *)hwif->dma_prdtable, hwif->dmatable_dma); + + /* specify r/w */ + out_be32((void __iomem *)hwif->dma_command, reading); + + /* read dma_status for INTR & ERROR flags */ + dma_stat = in_be32((void __iomem *)hwif->dma_status); + + /* clear INTR & ERROR flags */ + out_be32((void __iomem *)hwif->dma_status, dma_stat|6); + drive->waiting_for_dma = 1; + return 0; +} + + +/** + * scc_ide_dma_end - Stop DMA + * @drive: IDE drive + * + * Check and clear INT Status register. + * Then call __ide_dma_end(). + */ + +static int scc_ide_dma_end(ide_drive_t * drive) +{ + ide_hwif_t *hwif = HWIF(drive); + unsigned long intsts_port = hwif->dma_base + 0x014; + u32 reg; + + while (1) { + reg = in_be32((void __iomem *)intsts_port); + + if (reg & INTSTS_SERROR) { + printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME); + out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT); + + out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + continue; + } + + if (reg & INTSTS_PRERR) { + u32 maea0, maec0; + unsigned long ctl_base = hwif->config_data; + + maea0 = in_be32((void __iomem *)(ctl_base + 0xF50)); + maec0 = in_be32((void __iomem *)(ctl_base + 0xF54)); + + printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", SCC_PATA_NAME, maea0, maec0); + + out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT); + + out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + continue; + } + + if (reg & INTSTS_RERR) { + printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME); + out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT); + + out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + continue; + } + + if (reg & INTSTS_ICERR) { + out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); + + printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME); + out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT); + continue; + } + + if (reg & INTSTS_BMSINT) { + printk(KERN_WARNING "%s: Internal Bus Error\n", SCC_PATA_NAME); + out_be32((void __iomem *)intsts_port, INTSTS_BMSINT); + + ide_do_reset(drive); + continue; + } + + if (reg & INTSTS_BMHE) { + out_be32((void __iomem *)intsts_port, INTSTS_BMHE); + continue; + } + + if (reg & INTSTS_ACTEINT) { + out_be32((void __iomem *)intsts_port, INTSTS_ACTEINT); + continue; + } + + if (reg & INTSTS_IOIRQS) { + out_be32((void __iomem *)intsts_port, INTSTS_IOIRQS); + continue; + } + break; + } + + return __ide_dma_end(drive); +} + +/* returns 1 if dma irq issued, 0 otherwise */ +static int scc_dma_test_irq(ide_drive_t *drive) +{ + ide_hwif_t *hwif = HWIF(drive); + u8 dma_stat = hwif->INB(hwif->dma_status); + + /* return 1 if INTR asserted */ + if ((dma_stat & 4) == 4) + return 1; + + /* Workaround for PTERADD: emulate DMA_INTR when + * - IDE_STATUS[ERR] = 1 + * - INT_STATUS[INTRQ] = 1 + * - DMA_STATUS[IORACTA] = 1 + */ + if (in_be32((void __iomem *)IDE_ALTSTATUS_REG) & ERR_STAT && + in_be32((void __iomem *)(hwif->dma_base + 0x014)) & INTSTS_INTRQ && + dma_stat & 1) + return 1; + + if (!drive->waiting_for_dma) + printk(KERN_WARNING "%s: (%s) called while not waiting\n", + drive->name, __FUNCTION__); + return 0; +} + +/** + * setup_mmio_scc - map CTRL/BMID region + * @dev: PCI device we are configuring + * @name: device name + * + */ + +static int setup_mmio_scc (struct pci_dev *dev, const char *name) +{ + unsigned long ctl_base = pci_resource_start(dev, 0); + unsigned long dma_base = pci_resource_start(dev, 1); + unsigned long ctl_size = pci_resource_len(dev, 0); + unsigned long dma_size = pci_resource_len(dev, 1); + void *ctl_addr; + void *dma_addr; + int i; + + for (i = 0; i < MAX_HWIFS; i++) { + if (scc_ports[i].ctl == 0) + break; + } + if (i >= MAX_HWIFS) + return -ENOMEM; + + if (!request_mem_region(ctl_base, ctl_size, name)) { + printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME); + goto fail_0; + } + + if (!request_mem_region(dma_base, dma_size, name)) { + printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME); + goto fail_1; + } + + if ((ctl_addr = ioremap(ctl_base, ctl_size)) == NULL) + goto fail_2; + + if ((dma_addr = ioremap(dma_base, dma_size)) == NULL) + goto fail_3; + + pci_set_master(dev); + scc_ports[i].ctl = (unsigned long)ctl_addr; + scc_ports[i].dma = (unsigned long)dma_addr; + pci_set_drvdata(dev, (void *) &scc_ports[i]); + + return 1; + + fail_3: + iounmap(ctl_addr); + fail_2: + release_mem_region(dma_base, dma_size); + fail_1: + release_mem_region(ctl_base, ctl_size); + fail_0: + return -ENOMEM; +} + +/** + * init_setup_scc - set up an SCC PATA Controller + * @dev: PCI device + * @d: IDE PCI device + * + * Perform the initial set up for this device. + */ + +static int __devinit init_setup_scc(struct pci_dev *dev, ide_pci_device_t *d) +{ + unsigned long ctl_base; + unsigned long dma_base; + unsigned long cckctrl_port; + unsigned long intmask_port; + unsigned long mode_port; + unsigned long ecmode_port; + unsigned long dma_status_port; + u32 reg = 0; + struct scc_ports *ports; + int rc; + + rc = setup_mmio_scc(dev, d->name); + if (rc < 0) { + return rc; + } + + ports = pci_get_drvdata(dev); + ctl_base = ports->ctl; + dma_base = ports->dma; + cckctrl_port = ctl_base + 0xff0; + intmask_port = dma_base + 0x010; + mode_port = ctl_base + 0x024; + ecmode_port = ctl_base + 0xf00; + dma_status_port = dma_base + 0x004; + + /* controller initialization */ + reg = 0; + out_be32((void*)cckctrl_port, reg); + reg |= CCKCTRL_ATACLKOEN; + out_be32((void*)cckctrl_port, reg); + reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN; + out_be32((void*)cckctrl_port, reg); + reg |= CCKCTRL_CRST; + out_be32((void*)cckctrl_port, reg); + + for (;;) { + reg = in_be32((void*)cckctrl_port); + if (reg & CCKCTRL_CRST) + break; + udelay(5000); + } + + reg |= CCKCTRL_ATARESET; + out_be32((void*)cckctrl_port, reg); + + out_be32((void*)ecmode_port, ECMODE_VALUE); + out_be32((void*)mode_port, MODE_JCUSFEN); + out_be32((void*)intmask_port, INTMASK_MSK); + + return ide_setup_pci_device(dev, d); +} + +/** + * init_mmio_iops_scc - set up the iops for MMIO + * @hwif: interface to set up + * + */ + +static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) +{ + struct pci_dev *dev = hwif->pci_dev; + struct scc_ports *ports = pci_get_drvdata(dev); + unsigned long dma_base = ports->dma; + + ide_set_hwifdata(hwif, ports); + + hwif->INB = scc_ide_inb; + hwif->INW = scc_ide_inw; + hwif->INSW = scc_ide_insw; + hwif->INSL = scc_ide_insl; + hwif->OUTB = scc_ide_outb; + hwif->OUTBSYNC = scc_ide_outbsync; + hwif->OUTW = scc_ide_outw; + hwif->OUTSW = scc_ide_outsw; + hwif->OUTSL = scc_ide_outsl; + + hwif->io_ports[IDE_DATA_OFFSET] = dma_base + 0x20; + hwif->io_ports[IDE_ERROR_OFFSET] = dma_base + 0x24; + hwif->io_ports[IDE_NSECTOR_OFFSET] = dma_base + 0x28; + hwif->io_ports[IDE_SECTOR_OFFSET] = dma_base + 0x2c; + hwif->io_ports[IDE_LCYL_OFFSET] = dma_base + 0x30; + hwif->io_ports[IDE_HCYL_OFFSET] = dma_base + 0x34; + hwif->io_ports[IDE_SELECT_OFFSET] = dma_base + 0x38; + hwif->io_ports[IDE_STATUS_OFFSET] = dma_base + 0x3c; + hwif->io_ports[IDE_CONTROL_OFFSET] = dma_base + 0x40; + + hwif->irq = hwif->pci_dev->irq; + hwif->dma_base = dma_base; + hwif->config_data = ports->ctl; + hwif->mmio = 1; +} + +/** + * init_iops_scc - set up iops + * @hwif: interface to set up + * + * Do the basic setup for the SCC hardware interface + * and then do the MMIO setup. + */ + +static void __devinit init_iops_scc(ide_hwif_t *hwif) +{ + struct pci_dev *dev = hwif->pci_dev; + hwif->hwif_data = NULL; + if (pci_get_drvdata(dev) == NULL) + return; + init_mmio_iops_scc(hwif); +} + +/** + * init_hwif_scc - set up hwif + * @hwif: interface to set up + * + * We do the basic set up of the interface structure. The SCC + * requires several custom handlers so we override the default + * ide DMA handlers appropriately. + */ + +static void __devinit init_hwif_scc(ide_hwif_t *hwif) +{ + struct scc_ports *ports = ide_get_hwifdata(hwif); + + ports->hwif_id = hwif->index; + + hwif->dma_command = hwif->dma_base; + hwif->dma_status = hwif->dma_base + 0x04; + hwif->dma_prdtable = hwif->dma_base + 0x08; + + /* PTERADD */ + out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma); + + hwif->dma_setup = scc_dma_setup; + hwif->ide_dma_end = scc_ide_dma_end; + hwif->speedproc = scc_tune_chipset; + hwif->tuneproc = scc_tuneproc; + hwif->ide_dma_check = scc_config_drive_for_dma; + hwif->ide_dma_test_irq = scc_dma_test_irq; + + hwif->drives[0].autotune = IDE_TUNE_AUTO; + hwif->drives[1].autotune = IDE_TUNE_AUTO; + + if (in_be32((void __iomem *)(hwif->config_data + 0xff0)) & CCKCTRL_ATACLKOEN) { + hwif->ultra_mask = 0x7f; /* 133MHz */ + } else { + hwif->ultra_mask = 0x3f; /* 100MHz */ + } + hwif->mwdma_mask = 0x00; + hwif->swdma_mask = 0x00; + hwif->atapi_dma = 1; + + /* we support 80c cable only. */ + hwif->udma_four = 1; + + hwif->autodma = 0; + if (!noautodma) + hwif->autodma = 1; + hwif->drives[0].autodma = hwif->autodma; + hwif->drives[1].autodma = hwif->autodma; +} + +#define DECLARE_SCC_DEV(name_str) \ + { \ + .name = name_str, \ + .init_setup = init_setup_scc, \ + .init_iops = init_iops_scc, \ + .init_hwif = init_hwif_scc, \ + .channels = 1, \ + .autodma = AUTODMA, \ + .bootable = ON_BOARD, \ + } + +static ide_pci_device_t scc_chipsets[] __devinitdata = { + /* 0 */ DECLARE_SCC_DEV("sccIDE"), +}; + +/** + * scc_init_one - pci layer discovery entry + * @dev: PCI device + * @id: ident table entry + * + * Called by the PCI code when it finds an SCC PATA controller. + * We then use the IDE PCI generic helper to do most of the work. + */ + +static int __devinit scc_init_one(struct pci_dev *dev, const struct pci_device_id *id) +{ + ide_pci_device_t *d = &scc_chipsets[id->driver_data]; + return d->init_setup(dev, d); +} + +/** + * scc_remove - pci layer remove entry + * @dev: PCI device + * + * Called by the PCI code when it removes an SCC PATA controller. + */ + +static void __devexit scc_remove(struct pci_dev *dev) +{ + struct scc_ports *ports = pci_get_drvdata(dev); + ide_hwif_t *hwif = &ide_hwifs[ports->hwif_id]; + unsigned long ctl_base = pci_resource_start(dev, 0); + unsigned long dma_base = pci_resource_start(dev, 1); + unsigned long ctl_size = pci_resource_len(dev, 0); + unsigned long dma_size = pci_resource_len(dev, 1); + + if (hwif->dmatable_cpu) { + pci_free_consistent(hwif->pci_dev, + PRD_ENTRIES * PRD_BYTES, + hwif->dmatable_cpu, + hwif->dmatable_dma); + hwif->dmatable_cpu = NULL; + } + + ide_unregister(hwif->index); + + hwif->chipset = ide_unknown; + iounmap((void*)ports->dma); + iounmap((void*)ports->ctl); + release_mem_region(dma_base, dma_size); + release_mem_region(ctl_base, ctl_size); + memset(ports, 0, sizeof(*ports)); +} + +static struct pci_device_id scc_pci_tbl[] = { + { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, scc_pci_tbl); + +static struct pci_driver driver = { + .name = "SCC IDE", + .id_table = scc_pci_tbl, + .probe = scc_init_one, + .remove = scc_remove, +}; + +static int scc_ide_init(void) +{ + return ide_pci_register_driver(&driver); +} + +module_init(scc_ide_init); +/* -- No exit code? +static void scc_ide_exit(void) +{ + ide_pci_unregister_driver(&driver); +} +module_exit(scc_ide_exit); + */ + + +MODULE_DESCRIPTION("PCI driver module for Toshiba SCC IDE"); +MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ppc/scc_pata.c b/drivers/ide/ppc/scc_pata.c deleted file mode 100644 index f84bf791f72e..000000000000 --- a/drivers/ide/ppc/scc_pata.c +++ /dev/null @@ -1,858 +0,0 @@ -/* - * Support for IDE interfaces on Celleb platform - * - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * This code is based on drivers/ide/pci/siimage.c: - * Copyright (C) 2001-2002 Andre Hedrick - * Copyright (C) 2003 Red Hat - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include -#include -#include -#include -#include -#include -#include - -#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4 - -#define SCC_PATA_NAME "scc IDE" - -#define TDVHSEL_MASTER 0x00000001 -#define TDVHSEL_SLAVE 0x00000004 - -#define MODE_JCUSFEN 0x00000080 - -#define CCKCTRL_ATARESET 0x00040000 -#define CCKCTRL_BUFCNT 0x00020000 -#define CCKCTRL_CRST 0x00010000 -#define CCKCTRL_OCLKEN 0x00000100 -#define CCKCTRL_ATACLKOEN 0x00000002 -#define CCKCTRL_LCLKEN 0x00000001 - -#define QCHCD_IOS_SS 0x00000001 - -#define QCHSD_STPDIAG 0x00020000 - -#define INTMASK_MSK 0xD1000012 -#define INTSTS_SERROR 0x80000000 -#define INTSTS_PRERR 0x40000000 -#define INTSTS_RERR 0x10000000 -#define INTSTS_ICERR 0x01000000 -#define INTSTS_BMSINT 0x00000010 -#define INTSTS_BMHE 0x00000008 -#define INTSTS_IOIRQS 0x00000004 -#define INTSTS_INTRQ 0x00000002 -#define INTSTS_ACTEINT 0x00000001 - -#define ECMODE_VALUE 0x01 - -static struct scc_ports { - unsigned long ctl, dma; - unsigned char hwif_id; /* for removing hwif from system */ -} scc_ports[MAX_HWIFS]; - -/* PIO transfer mode table */ -/* JCHST */ -static unsigned long JCHSTtbl[2][7] = { - {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHHT */ -static unsigned long JCHHTtbl[2][7] = { - {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHCT */ -static unsigned long JCHCTtbl[2][7] = { - {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00}, /* 100MHz */ - {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00} /* 133MHz */ -}; - - -/* DMA transfer mode table */ -/* JCHDCTM/JCHDCTS */ -static unsigned long JCHDCTxtbl[2][7] = { - {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00}, /* 100MHz */ - {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00} /* 133MHz */ -}; - -/* JCSTWTM/JCSTWTS */ -static unsigned long JCSTWTxtbl[2][7] = { - {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00}, /* 100MHz */ - {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCTSS */ -static unsigned long JCTSStbl[2][7] = { - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00}, /* 100MHz */ - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05} /* 133MHz */ -}; - -/* JCENVT */ -static unsigned long JCENVTtbl[2][7] = { - {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCACTSELS/JCACTSELM */ -static unsigned long JCACTSELtbl[2][7] = { - {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} /* 133MHz */ -}; - - -static u8 scc_ide_inb(unsigned long port) -{ - u32 data = in_be32((void*)port); - return (u8)data; -} - -static u16 scc_ide_inw(unsigned long port) -{ - u32 data = in_be32((void*)port); - return (u16)data; -} - -static void scc_ide_insw(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - *ptr++ = le16_to_cpu(in_be32((void*)port)); - } -} - -static void scc_ide_insl(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - *ptr++ = le16_to_cpu(in_be32((void*)port)); - *ptr++ = le16_to_cpu(in_be32((void*)port)); - } -} - -static void scc_ide_outb(u8 addr, unsigned long port) -{ - out_be32((void*)port, addr); -} - -static void scc_ide_outw(u16 addr, unsigned long port) -{ - out_be32((void*)port, addr); -} - -static void -scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port) -{ - ide_hwif_t *hwif = HWIF(drive); - - out_be32((void*)port, addr); - __asm__ __volatile__("eieio":::"memory"); - in_be32((void*)(hwif->dma_base + 0x01c)); - __asm__ __volatile__("eieio":::"memory"); -} - -static void -scc_ide_outsw(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - out_be32((void*)port, cpu_to_le16(*ptr++)); - } -} - -static void -scc_ide_outsl(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - out_be32((void*)port, cpu_to_le16(*ptr++)); - out_be32((void*)port, cpu_to_le16(*ptr++)); - } -} - -/** - * scc_ratemask - Compute available modes - * @drive: IDE drive - * - * Compute the available speeds for the devices on the interface. - * Enforce UDMA33 as a limit if there is no 80pin cable present. - */ - -static u8 scc_ratemask(ide_drive_t *drive) -{ - u8 mode = 4; - - if (!eighty_ninty_three(drive)) - mode = min(mode, (u8)1); - return mode; -} - -/** - * scc_tuneproc - tune a drive PIO mode - * @drive: drive to tune - * @mode_wanted: the target operating mode - * - * Load the timing settings for this device mode into the - * controller. - */ - -static void scc_tuneproc(ide_drive_t *drive, byte mode_wanted) -{ - ide_hwif_t *hwif = HWIF(drive); - struct scc_ports *ports = ide_get_hwifdata(hwif); - unsigned long ctl_base = ports->ctl; - unsigned long cckctrl_port = ctl_base + 0xff0; - unsigned long piosht_port = ctl_base + 0x000; - unsigned long pioct_port = ctl_base + 0x004; - unsigned long reg; - unsigned char speed = XFER_PIO_0; - int offset; - - mode_wanted = ide_get_best_pio_mode(drive, mode_wanted, 4, NULL); - switch (mode_wanted) { - case 4: - speed = XFER_PIO_4; - break; - case 3: - speed = XFER_PIO_3; - break; - case 2: - speed = XFER_PIO_2; - break; - case 1: - speed = XFER_PIO_1; - break; - case 0: - default: - speed = XFER_PIO_0; - break; - } - - reg = in_be32((void __iomem *)cckctrl_port); - if (reg & CCKCTRL_ATACLKOEN) { - offset = 1; /* 133MHz */ - } else { - offset = 0; /* 100MHz */ - } - reg = JCHSTtbl[offset][mode_wanted] << 16 | JCHHTtbl[offset][mode_wanted]; - out_be32((void __iomem *)piosht_port, reg); - reg = JCHCTtbl[offset][mode_wanted]; - out_be32((void __iomem *)pioct_port, reg); - - ide_config_drive_speed(drive, speed); -} - -/** - * scc_tune_chipset - tune a drive DMA mode - * @drive: Drive to set up - * @xferspeed: speed we want to achieve - * - * Load the timing settings for this device mode into the - * controller. - */ - -static int scc_tune_chipset(ide_drive_t *drive, byte xferspeed) -{ - ide_hwif_t *hwif = HWIF(drive); - u8 speed = ide_rate_filter(scc_ratemask(drive), xferspeed); - struct scc_ports *ports = ide_get_hwifdata(hwif); - unsigned long ctl_base = ports->ctl; - unsigned long cckctrl_port = ctl_base + 0xff0; - unsigned long mdmact_port = ctl_base + 0x008; - unsigned long mcrcst_port = ctl_base + 0x00c; - unsigned long sdmact_port = ctl_base + 0x010; - unsigned long scrcst_port = ctl_base + 0x014; - unsigned long udenvt_port = ctl_base + 0x018; - unsigned long tdvhsel_port = ctl_base + 0x020; - int is_slave = (&hwif->drives[1] == drive); - int offset, idx; - unsigned long reg; - unsigned long jcactsel; - - reg = in_be32((void __iomem *)cckctrl_port); - if (reg & CCKCTRL_ATACLKOEN) { - offset = 1; /* 133MHz */ - } else { - offset = 0; /* 100MHz */ - } - - switch (speed) { - case XFER_UDMA_6: - idx = 6; - break; - case XFER_UDMA_5: - idx = 5; - break; - case XFER_UDMA_4: - idx = 4; - break; - case XFER_UDMA_3: - idx = 3; - break; - case XFER_UDMA_2: - idx = 2; - break; - case XFER_UDMA_1: - idx = 1; - break; - case XFER_UDMA_0: - idx = 0; - break; - default: - return 1; - } - - jcactsel = JCACTSELtbl[offset][idx]; - if (is_slave) { - out_be32((void __iomem *)sdmact_port, JCHDCTxtbl[offset][idx]); - out_be32((void __iomem *)scrcst_port, JCSTWTxtbl[offset][idx]); - jcactsel = jcactsel << 2; - out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_SLAVE) | jcactsel); - } else { - out_be32((void __iomem *)mdmact_port, JCHDCTxtbl[offset][idx]); - out_be32((void __iomem *)mcrcst_port, JCSTWTxtbl[offset][idx]); - out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_MASTER) | jcactsel); - } - reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx]; - out_be32((void __iomem *)udenvt_port, reg); - - return ide_config_drive_speed(drive, speed); -} - -/** - * scc_config_chipset_for_dma - configure for DMA - * @drive: drive to configure - * - * Called by scc_config_drive_for_dma(). - */ - -static int scc_config_chipset_for_dma(ide_drive_t *drive) -{ - u8 speed = ide_dma_speed(drive, scc_ratemask(drive)); - - if (!speed) - return 0; - - if (scc_tune_chipset(drive, speed)) - return 0; - - return ide_dma_enable(drive); -} - -/** - * scc_configure_drive_for_dma - set up for DMA transfers - * @drive: drive we are going to set up - * - * Set up the drive for DMA, tune the controller and drive as - * required. - * If the drive isn't suitable for DMA or we hit other problems - * then we will drop down to PIO and set up PIO appropriately. - * (return 1) - */ - -static int scc_config_drive_for_dma(ide_drive_t *drive) -{ - if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive)) - return 0; - - if (ide_use_fast_pio(drive)) - scc_tuneproc(drive, 4); - - return -1; -} - -/** - * scc_ide_dma_setup - begin a DMA phase - * @drive: target device - * - * Build an IDE DMA PRD (IDE speak for scatter gather table) - * and then set up the DMA transfer registers. - * - * Returns 0 on success. If a PIO fallback is required then 1 - * is returned. - */ - -static int scc_dma_setup(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct request *rq = HWGROUP(drive)->rq; - unsigned int reading; - u8 dma_stat; - - if (rq_data_dir(rq)) - reading = 0; - else - reading = 1 << 3; - - /* fall back to pio! */ - if (!ide_build_dmatable(drive, rq)) { - ide_map_sg(drive, rq); - return 1; - } - - /* PRD table */ - out_be32((void __iomem *)hwif->dma_prdtable, hwif->dmatable_dma); - - /* specify r/w */ - out_be32((void __iomem *)hwif->dma_command, reading); - - /* read dma_status for INTR & ERROR flags */ - dma_stat = in_be32((void __iomem *)hwif->dma_status); - - /* clear INTR & ERROR flags */ - out_be32((void __iomem *)hwif->dma_status, dma_stat|6); - drive->waiting_for_dma = 1; - return 0; -} - - -/** - * scc_ide_dma_end - Stop DMA - * @drive: IDE drive - * - * Check and clear INT Status register. - * Then call __ide_dma_end(). - */ - -static int scc_ide_dma_end(ide_drive_t * drive) -{ - ide_hwif_t *hwif = HWIF(drive); - unsigned long intsts_port = hwif->dma_base + 0x014; - u32 reg; - - while (1) { - reg = in_be32((void __iomem *)intsts_port); - - if (reg & INTSTS_SERROR) { - printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT); - - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_PRERR) { - u32 maea0, maec0; - unsigned long ctl_base = hwif->config_data; - - maea0 = in_be32((void __iomem *)(ctl_base + 0xF50)); - maec0 = in_be32((void __iomem *)(ctl_base + 0xF54)); - - printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", SCC_PATA_NAME, maea0, maec0); - - out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT); - - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_RERR) { - printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT); - - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_ICERR) { - out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS); - - printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT); - continue; - } - - if (reg & INTSTS_BMSINT) { - printk(KERN_WARNING "%s: Internal Bus Error\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_BMSINT); - - ide_do_reset(drive); - continue; - } - - if (reg & INTSTS_BMHE) { - out_be32((void __iomem *)intsts_port, INTSTS_BMHE); - continue; - } - - if (reg & INTSTS_ACTEINT) { - out_be32((void __iomem *)intsts_port, INTSTS_ACTEINT); - continue; - } - - if (reg & INTSTS_IOIRQS) { - out_be32((void __iomem *)intsts_port, INTSTS_IOIRQS); - continue; - } - break; - } - - return __ide_dma_end(drive); -} - -/* returns 1 if dma irq issued, 0 otherwise */ -static int scc_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - u8 dma_stat = hwif->INB(hwif->dma_status); - - /* return 1 if INTR asserted */ - if ((dma_stat & 4) == 4) - return 1; - - /* Workaround for PTERADD: emulate DMA_INTR when - * - IDE_STATUS[ERR] = 1 - * - INT_STATUS[INTRQ] = 1 - * - DMA_STATUS[IORACTA] = 1 - */ - if (in_be32((void __iomem *)IDE_ALTSTATUS_REG) & ERR_STAT && - in_be32((void __iomem *)(hwif->dma_base + 0x014)) & INTSTS_INTRQ && - dma_stat & 1) - return 1; - - if (!drive->waiting_for_dma) - printk(KERN_WARNING "%s: (%s) called while not waiting\n", - drive->name, __FUNCTION__); - return 0; -} - -/** - * setup_mmio_scc - map CTRL/BMID region - * @dev: PCI device we are configuring - * @name: device name - * - */ - -static int setup_mmio_scc (struct pci_dev *dev, const char *name) -{ - unsigned long ctl_base = pci_resource_start(dev, 0); - unsigned long dma_base = pci_resource_start(dev, 1); - unsigned long ctl_size = pci_resource_len(dev, 0); - unsigned long dma_size = pci_resource_len(dev, 1); - void *ctl_addr; - void *dma_addr; - int i; - - for (i = 0; i < MAX_HWIFS; i++) { - if (scc_ports[i].ctl == 0) - break; - } - if (i >= MAX_HWIFS) - return -ENOMEM; - - if (!request_mem_region(ctl_base, ctl_size, name)) { - printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME); - goto fail_0; - } - - if (!request_mem_region(dma_base, dma_size, name)) { - printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME); - goto fail_1; - } - - if ((ctl_addr = ioremap(ctl_base, ctl_size)) == NULL) - goto fail_2; - - if ((dma_addr = ioremap(dma_base, dma_size)) == NULL) - goto fail_3; - - pci_set_master(dev); - scc_ports[i].ctl = (unsigned long)ctl_addr; - scc_ports[i].dma = (unsigned long)dma_addr; - pci_set_drvdata(dev, (void *) &scc_ports[i]); - - return 1; - - fail_3: - iounmap(ctl_addr); - fail_2: - release_mem_region(dma_base, dma_size); - fail_1: - release_mem_region(ctl_base, ctl_size); - fail_0: - return -ENOMEM; -} - -/** - * init_setup_scc - set up an SCC PATA Controller - * @dev: PCI device - * @d: IDE PCI device - * - * Perform the initial set up for this device. - */ - -static int __devinit init_setup_scc(struct pci_dev *dev, ide_pci_device_t *d) -{ - unsigned long ctl_base; - unsigned long dma_base; - unsigned long cckctrl_port; - unsigned long intmask_port; - unsigned long mode_port; - unsigned long ecmode_port; - unsigned long dma_status_port; - u32 reg = 0; - struct scc_ports *ports; - int rc; - - rc = setup_mmio_scc(dev, d->name); - if (rc < 0) { - return rc; - } - - ports = pci_get_drvdata(dev); - ctl_base = ports->ctl; - dma_base = ports->dma; - cckctrl_port = ctl_base + 0xff0; - intmask_port = dma_base + 0x010; - mode_port = ctl_base + 0x024; - ecmode_port = ctl_base + 0xf00; - dma_status_port = dma_base + 0x004; - - /* controller initialization */ - reg = 0; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_ATACLKOEN; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_CRST; - out_be32((void*)cckctrl_port, reg); - - for (;;) { - reg = in_be32((void*)cckctrl_port); - if (reg & CCKCTRL_CRST) - break; - udelay(5000); - } - - reg |= CCKCTRL_ATARESET; - out_be32((void*)cckctrl_port, reg); - - out_be32((void*)ecmode_port, ECMODE_VALUE); - out_be32((void*)mode_port, MODE_JCUSFEN); - out_be32((void*)intmask_port, INTMASK_MSK); - - return ide_setup_pci_device(dev, d); -} - -/** - * init_mmio_iops_scc - set up the iops for MMIO - * @hwif: interface to set up - * - */ - -static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) -{ - struct pci_dev *dev = hwif->pci_dev; - struct scc_ports *ports = pci_get_drvdata(dev); - unsigned long dma_base = ports->dma; - - ide_set_hwifdata(hwif, ports); - - hwif->INB = scc_ide_inb; - hwif->INW = scc_ide_inw; - hwif->INSW = scc_ide_insw; - hwif->INSL = scc_ide_insl; - hwif->OUTB = scc_ide_outb; - hwif->OUTBSYNC = scc_ide_outbsync; - hwif->OUTW = scc_ide_outw; - hwif->OUTSW = scc_ide_outsw; - hwif->OUTSL = scc_ide_outsl; - - hwif->io_ports[IDE_DATA_OFFSET] = dma_base + 0x20; - hwif->io_ports[IDE_ERROR_OFFSET] = dma_base + 0x24; - hwif->io_ports[IDE_NSECTOR_OFFSET] = dma_base + 0x28; - hwif->io_ports[IDE_SECTOR_OFFSET] = dma_base + 0x2c; - hwif->io_ports[IDE_LCYL_OFFSET] = dma_base + 0x30; - hwif->io_ports[IDE_HCYL_OFFSET] = dma_base + 0x34; - hwif->io_ports[IDE_SELECT_OFFSET] = dma_base + 0x38; - hwif->io_ports[IDE_STATUS_OFFSET] = dma_base + 0x3c; - hwif->io_ports[IDE_CONTROL_OFFSET] = dma_base + 0x40; - - hwif->irq = hwif->pci_dev->irq; - hwif->dma_base = dma_base; - hwif->config_data = ports->ctl; - hwif->mmio = 1; -} - -/** - * init_iops_scc - set up iops - * @hwif: interface to set up - * - * Do the basic setup for the SCC hardware interface - * and then do the MMIO setup. - */ - -static void __devinit init_iops_scc(ide_hwif_t *hwif) -{ - struct pci_dev *dev = hwif->pci_dev; - hwif->hwif_data = NULL; - if (pci_get_drvdata(dev) == NULL) - return; - init_mmio_iops_scc(hwif); -} - -/** - * init_hwif_scc - set up hwif - * @hwif: interface to set up - * - * We do the basic set up of the interface structure. The SCC - * requires several custom handlers so we override the default - * ide DMA handlers appropriately. - */ - -static void __devinit init_hwif_scc(ide_hwif_t *hwif) -{ - struct scc_ports *ports = ide_get_hwifdata(hwif); - - ports->hwif_id = hwif->index; - - hwif->dma_command = hwif->dma_base; - hwif->dma_status = hwif->dma_base + 0x04; - hwif->dma_prdtable = hwif->dma_base + 0x08; - - /* PTERADD */ - out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma); - - hwif->dma_setup = scc_dma_setup; - hwif->ide_dma_end = scc_ide_dma_end; - hwif->speedproc = scc_tune_chipset; - hwif->tuneproc = scc_tuneproc; - hwif->ide_dma_check = scc_config_drive_for_dma; - hwif->ide_dma_test_irq = scc_dma_test_irq; - - hwif->drives[0].autotune = IDE_TUNE_AUTO; - hwif->drives[1].autotune = IDE_TUNE_AUTO; - - if (in_be32((void __iomem *)(hwif->config_data + 0xff0)) & CCKCTRL_ATACLKOEN) { - hwif->ultra_mask = 0x7f; /* 133MHz */ - } else { - hwif->ultra_mask = 0x3f; /* 100MHz */ - } - hwif->mwdma_mask = 0x00; - hwif->swdma_mask = 0x00; - hwif->atapi_dma = 1; - - /* we support 80c cable only. */ - hwif->udma_four = 1; - - hwif->autodma = 0; - if (!noautodma) - hwif->autodma = 1; - hwif->drives[0].autodma = hwif->autodma; - hwif->drives[1].autodma = hwif->autodma; -} - -#define DECLARE_SCC_DEV(name_str) \ - { \ - .name = name_str, \ - .init_setup = init_setup_scc, \ - .init_iops = init_iops_scc, \ - .init_hwif = init_hwif_scc, \ - .channels = 1, \ - .autodma = AUTODMA, \ - .bootable = ON_BOARD, \ - } - -static ide_pci_device_t scc_chipsets[] __devinitdata = { - /* 0 */ DECLARE_SCC_DEV("sccIDE"), -}; - -/** - * scc_init_one - pci layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds an SCC PATA controller. - * We then use the IDE PCI generic helper to do most of the work. - */ - -static int __devinit scc_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - ide_pci_device_t *d = &scc_chipsets[id->driver_data]; - return d->init_setup(dev, d); -} - -/** - * scc_remove - pci layer remove entry - * @dev: PCI device - * - * Called by the PCI code when it removes an SCC PATA controller. - */ - -static void __devexit scc_remove(struct pci_dev *dev) -{ - struct scc_ports *ports = pci_get_drvdata(dev); - ide_hwif_t *hwif = &ide_hwifs[ports->hwif_id]; - unsigned long ctl_base = pci_resource_start(dev, 0); - unsigned long dma_base = pci_resource_start(dev, 1); - unsigned long ctl_size = pci_resource_len(dev, 0); - unsigned long dma_size = pci_resource_len(dev, 1); - - if (hwif->dmatable_cpu) { - pci_free_consistent(hwif->pci_dev, - PRD_ENTRIES * PRD_BYTES, - hwif->dmatable_cpu, - hwif->dmatable_dma); - hwif->dmatable_cpu = NULL; - } - - ide_unregister(hwif->index); - - hwif->chipset = ide_unknown; - iounmap((void*)ports->dma); - iounmap((void*)ports->ctl); - release_mem_region(dma_base, dma_size); - release_mem_region(ctl_base, ctl_size); - memset(ports, 0, sizeof(*ports)); -} - -static struct pci_device_id scc_pci_tbl[] = { - { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, scc_pci_tbl); - -static struct pci_driver driver = { - .name = "SCC IDE", - .id_table = scc_pci_tbl, - .probe = scc_init_one, - .remove = scc_remove, -}; - -static int scc_ide_init(void) -{ - return ide_pci_register_driver(&driver); -} - -module_init(scc_ide_init); -/* -- No exit code? -static void scc_ide_exit(void) -{ - ide_pci_unregister_driver(&driver); -} -module_exit(scc_ide_exit); - */ - - -MODULE_DESCRIPTION("PCI driver module for Toshiba SCC IDE"); -MODULE_LICENSE("GPL");