From: Thomas Gleixner Date: Thu, 11 Oct 2007 09:12:34 +0000 (+0200) Subject: i386: prepare shared kernel/reboot_fixups.c X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=24d8d25f1563f25c365cc6895bfc88af0b90ee40;p=openwrt%2Fstaging%2Fblogic.git i386: prepare shared kernel/reboot_fixups.c Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 4ff5e93d23c9..57b41c4d5fde 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -24,7 +24,7 @@ obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o obj-$(CONFIG_X86_MPPARSE) += mpparse.o obj-$(CONFIG_X86_LOCAL_APIC) += apic_32.o nmi_32.o obj-$(CONFIG_X86_IO_APIC) += io_apic_32.o -obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups.o +obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel_32.o crash_32.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_X86_NUMAQ) += numaq.o diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c deleted file mode 100644 index 03e1cce58f49..000000000000 --- a/arch/i386/kernel/reboot_fixups.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * linux/arch/i386/kernel/reboot_fixups.c - * - * This is a good place to put board specific reboot fixups. - * - * List of supported fixups: - * geode-gx1/cs5530a - Jaya Kumar - * geode-gx/lx/cs5536 - Andres Salomon - * - */ - -#include -#include -#include -#include - -static void cs5530a_warm_reset(struct pci_dev *dev) -{ - /* writing 1 to the reset control register, 0x44 causes the - cs5530a to perform a system warm reset */ - pci_write_config_byte(dev, 0x44, 0x1); - udelay(50); /* shouldn't get here but be safe and spin-a-while */ - return; -} - -static void cs5536_warm_reset(struct pci_dev *dev) -{ - /* - * 6.6.2.12 Soft Reset (DIVIL_SOFT_RESET) - * writing 1 to the LSB of this MSR causes a hard reset. - */ - wrmsrl(0x51400017, 1ULL); - udelay(50); /* shouldn't get here but be safe and spin a while */ -} - -struct device_fixup { - unsigned int vendor; - unsigned int device; - void (*reboot_fixup)(struct pci_dev *); -}; - -static struct device_fixup fixups_table[] = { -{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset }, -{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset }, -}; - -/* - * we see if any fixup is available for our current hardware. if there - * is a fixup, we call it and we expect to never return from it. if we - * do return, we keep looking and then eventually fall back to the - * standard mach_reboot on return. - */ -void mach_reboot_fixups(void) -{ - struct device_fixup *cur; - struct pci_dev *dev; - int i; - - for (i=0; i < ARRAY_SIZE(fixups_table); i++) { - cur = &(fixups_table[i]); - dev = pci_get_device(cur->vendor, cur->device, NULL); - if (!dev) - continue; - - cur->reboot_fixup(dev); - } -} - diff --git a/arch/i386/kernel/reboot_fixups_32.c b/arch/i386/kernel/reboot_fixups_32.c new file mode 100644 index 000000000000..03e1cce58f49 --- /dev/null +++ b/arch/i386/kernel/reboot_fixups_32.c @@ -0,0 +1,68 @@ +/* + * linux/arch/i386/kernel/reboot_fixups.c + * + * This is a good place to put board specific reboot fixups. + * + * List of supported fixups: + * geode-gx1/cs5530a - Jaya Kumar + * geode-gx/lx/cs5536 - Andres Salomon + * + */ + +#include +#include +#include +#include + +static void cs5530a_warm_reset(struct pci_dev *dev) +{ + /* writing 1 to the reset control register, 0x44 causes the + cs5530a to perform a system warm reset */ + pci_write_config_byte(dev, 0x44, 0x1); + udelay(50); /* shouldn't get here but be safe and spin-a-while */ + return; +} + +static void cs5536_warm_reset(struct pci_dev *dev) +{ + /* + * 6.6.2.12 Soft Reset (DIVIL_SOFT_RESET) + * writing 1 to the LSB of this MSR causes a hard reset. + */ + wrmsrl(0x51400017, 1ULL); + udelay(50); /* shouldn't get here but be safe and spin a while */ +} + +struct device_fixup { + unsigned int vendor; + unsigned int device; + void (*reboot_fixup)(struct pci_dev *); +}; + +static struct device_fixup fixups_table[] = { +{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset }, +{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset }, +}; + +/* + * we see if any fixup is available for our current hardware. if there + * is a fixup, we call it and we expect to never return from it. if we + * do return, we keep looking and then eventually fall back to the + * standard mach_reboot on return. + */ +void mach_reboot_fixups(void) +{ + struct device_fixup *cur; + struct pci_dev *dev; + int i; + + for (i=0; i < ARRAY_SIZE(fixups_table); i++) { + cur = &(fixups_table[i]); + dev = pci_get_device(cur->vendor, cur->device, NULL); + if (!dev) + continue; + + cur->reboot_fixup(dev); + } +} +