From: Thomas Gleixner Date: Sat, 16 Oct 2010 08:35:51 +0000 (+0200) Subject: x86: Move scx200 to platform X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3b3da9d25ae;p=openwrt%2Fstaging%2Fblogic.git x86: Move scx200 to platform Signed-off-by: Thomas Gleixner --- diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 28c4f3f2e97d..f57eeea4bc16 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -101,9 +101,6 @@ obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o -obj-$(CONFIG_SCx200) += scx200.o -scx200-y += scx200_32.o - obj-$(CONFIG_OLPC) += olpc.o obj-$(CONFIG_OLPC_XO1) += olpc-xo1.o obj-$(CONFIG_OLPC_OPENFIRMWARE) += olpc_ofw.o diff --git a/arch/x86/kernel/scx200_32.c b/arch/x86/kernel/scx200_32.c deleted file mode 100644 index 7e004acbe526..000000000000 --- a/arch/x86/kernel/scx200_32.c +++ /dev/null @@ -1,131 +0,0 @@ -/* - * Copyright (c) 2001,2002 Christer Weinigel - * - * National Semiconductor SCx200 support. - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -/* Verify that the configuration block really is there */ -#define scx200_cb_probe(base) (inw((base) + SCx200_CBA) == (base)) - -#define NAME "scx200" - -MODULE_AUTHOR("Christer Weinigel "); -MODULE_DESCRIPTION("NatSemi SCx200 Driver"); -MODULE_LICENSE("GPL"); - -unsigned scx200_gpio_base = 0; -unsigned long scx200_gpio_shadow[2]; - -unsigned scx200_cb_base = 0; - -static struct pci_device_id scx200_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE) }, - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE) }, - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_XBUS) }, - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_XBUS) }, - { }, -}; -MODULE_DEVICE_TABLE(pci,scx200_tbl); - -static int __devinit scx200_probe(struct pci_dev *, const struct pci_device_id *); - -static struct pci_driver scx200_pci_driver = { - .name = "scx200", - .id_table = scx200_tbl, - .probe = scx200_probe, -}; - -static DEFINE_MUTEX(scx200_gpio_config_lock); - -static void __devinit scx200_init_shadow(void) -{ - int bank; - - /* read the current values driven on the GPIO signals */ - for (bank = 0; bank < 2; ++bank) - scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank); -} - -static int __devinit scx200_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - unsigned base; - - if (pdev->device == PCI_DEVICE_ID_NS_SCx200_BRIDGE || - pdev->device == PCI_DEVICE_ID_NS_SC1100_BRIDGE) { - base = pci_resource_start(pdev, 0); - printk(KERN_INFO NAME ": GPIO base 0x%x\n", base); - - if (!request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO")) { - printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n"); - return -EBUSY; - } - - scx200_gpio_base = base; - scx200_init_shadow(); - - } else { - /* find the base of the Configuration Block */ - if (scx200_cb_probe(SCx200_CB_BASE_FIXED)) { - scx200_cb_base = SCx200_CB_BASE_FIXED; - } else { - pci_read_config_dword(pdev, SCx200_CBA_SCRATCH, &base); - if (scx200_cb_probe(base)) { - scx200_cb_base = base; - } else { - printk(KERN_WARNING NAME ": Configuration Block not found\n"); - return -ENODEV; - } - } - printk(KERN_INFO NAME ": Configuration Block base 0x%x\n", scx200_cb_base); - } - - return 0; -} - -u32 scx200_gpio_configure(unsigned index, u32 mask, u32 bits) -{ - u32 config, new_config; - - mutex_lock(&scx200_gpio_config_lock); - - outl(index, scx200_gpio_base + 0x20); - config = inl(scx200_gpio_base + 0x24); - - new_config = (config & mask) | bits; - outl(new_config, scx200_gpio_base + 0x24); - - mutex_unlock(&scx200_gpio_config_lock); - - return config; -} - -static int __init scx200_init(void) -{ - printk(KERN_INFO NAME ": NatSemi SCx200 Driver\n"); - - return pci_register_driver(&scx200_pci_driver); -} - -static void __exit scx200_cleanup(void) -{ - pci_unregister_driver(&scx200_pci_driver); - release_region(scx200_gpio_base, SCx200_GPIO_SIZE); -} - -module_init(scx200_init); -module_exit(scx200_cleanup); - -EXPORT_SYMBOL(scx200_gpio_base); -EXPORT_SYMBOL(scx200_gpio_shadow); -EXPORT_SYMBOL(scx200_gpio_configure); -EXPORT_SYMBOL(scx200_cb_base); diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile index e629d7a428cb..1191989e9f00 100644 --- a/arch/x86/platform/Makefile +++ b/arch/x86/platform/Makefile @@ -1,4 +1,5 @@ # Platform specific code goes here obj-y += efi/ +obj-y += scx200/ obj-y += sfi/ obj-y += visws/ diff --git a/arch/x86/platform/scx200/Makefile b/arch/x86/platform/scx200/Makefile new file mode 100644 index 000000000000..762b4c7f4314 --- /dev/null +++ b/arch/x86/platform/scx200/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_SCx200) += scx200.o +scx200-y += scx200_32.o diff --git a/arch/x86/platform/scx200/scx200_32.c b/arch/x86/platform/scx200/scx200_32.c new file mode 100644 index 000000000000..7e004acbe526 --- /dev/null +++ b/arch/x86/platform/scx200/scx200_32.c @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2001,2002 Christer Weinigel + * + * National Semiconductor SCx200 support. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +/* Verify that the configuration block really is there */ +#define scx200_cb_probe(base) (inw((base) + SCx200_CBA) == (base)) + +#define NAME "scx200" + +MODULE_AUTHOR("Christer Weinigel "); +MODULE_DESCRIPTION("NatSemi SCx200 Driver"); +MODULE_LICENSE("GPL"); + +unsigned scx200_gpio_base = 0; +unsigned long scx200_gpio_shadow[2]; + +unsigned scx200_cb_base = 0; + +static struct pci_device_id scx200_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE) }, + { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE) }, + { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_XBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_XBUS) }, + { }, +}; +MODULE_DEVICE_TABLE(pci,scx200_tbl); + +static int __devinit scx200_probe(struct pci_dev *, const struct pci_device_id *); + +static struct pci_driver scx200_pci_driver = { + .name = "scx200", + .id_table = scx200_tbl, + .probe = scx200_probe, +}; + +static DEFINE_MUTEX(scx200_gpio_config_lock); + +static void __devinit scx200_init_shadow(void) +{ + int bank; + + /* read the current values driven on the GPIO signals */ + for (bank = 0; bank < 2; ++bank) + scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank); +} + +static int __devinit scx200_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + unsigned base; + + if (pdev->device == PCI_DEVICE_ID_NS_SCx200_BRIDGE || + pdev->device == PCI_DEVICE_ID_NS_SC1100_BRIDGE) { + base = pci_resource_start(pdev, 0); + printk(KERN_INFO NAME ": GPIO base 0x%x\n", base); + + if (!request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO")) { + printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n"); + return -EBUSY; + } + + scx200_gpio_base = base; + scx200_init_shadow(); + + } else { + /* find the base of the Configuration Block */ + if (scx200_cb_probe(SCx200_CB_BASE_FIXED)) { + scx200_cb_base = SCx200_CB_BASE_FIXED; + } else { + pci_read_config_dword(pdev, SCx200_CBA_SCRATCH, &base); + if (scx200_cb_probe(base)) { + scx200_cb_base = base; + } else { + printk(KERN_WARNING NAME ": Configuration Block not found\n"); + return -ENODEV; + } + } + printk(KERN_INFO NAME ": Configuration Block base 0x%x\n", scx200_cb_base); + } + + return 0; +} + +u32 scx200_gpio_configure(unsigned index, u32 mask, u32 bits) +{ + u32 config, new_config; + + mutex_lock(&scx200_gpio_config_lock); + + outl(index, scx200_gpio_base + 0x20); + config = inl(scx200_gpio_base + 0x24); + + new_config = (config & mask) | bits; + outl(new_config, scx200_gpio_base + 0x24); + + mutex_unlock(&scx200_gpio_config_lock); + + return config; +} + +static int __init scx200_init(void) +{ + printk(KERN_INFO NAME ": NatSemi SCx200 Driver\n"); + + return pci_register_driver(&scx200_pci_driver); +} + +static void __exit scx200_cleanup(void) +{ + pci_unregister_driver(&scx200_pci_driver); + release_region(scx200_gpio_base, SCx200_GPIO_SIZE); +} + +module_init(scx200_init); +module_exit(scx200_cleanup); + +EXPORT_SYMBOL(scx200_gpio_base); +EXPORT_SYMBOL(scx200_gpio_shadow); +EXPORT_SYMBOL(scx200_gpio_configure); +EXPORT_SYMBOL(scx200_cb_base);