diff options
Diffstat (limited to 'arch/i386/kernel/reboot_fixups.c')
| -rw-r--r-- | arch/i386/kernel/reboot_fixups.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c index 2d78d918340..03e1cce58f4 100644 --- a/arch/i386/kernel/reboot_fixups.c +++ b/arch/i386/kernel/reboot_fixups.c @@ -5,12 +5,14 @@ * * List of supported fixups: * geode-gx1/cs5530a - Jaya Kumar <jayalk@intworks.biz> + * geode-gx/lx/cs5536 - Andres Salomon <dilinger@debian.org> * */ #include <asm/delay.h> #include <linux/pci.h> #include <asm/reboot_fixups.h> +#include <asm/msr.h> static void cs5530a_warm_reset(struct pci_dev *dev) { @@ -21,6 +23,16 @@ static void cs5530a_warm_reset(struct pci_dev *dev) 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; @@ -29,6 +41,7 @@ struct device_fixup { 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 }, }; /* |