From ff472a114ca11f5354912745fbb94bb66ec10916 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 30 Jan 2008 13:33:36 +0100 Subject: [PATCH] x86: add the RDC machine specific reboot fixup The RDC R-321x SoC needs a reboot fixup which uses its internal hardware watchdog set to reset the CPU on next tick. Signed-off-by: Florian Fainelli Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/reboot_fixups_32.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c index f452726c0fe..dec0b5ec25c 100644 --- a/arch/x86/kernel/reboot_fixups_32.c +++ b/arch/x86/kernel/reboot_fixups_32.c @@ -30,6 +30,19 @@ static void cs5536_warm_reset(struct pci_dev *dev) udelay(50); /* shouldn't get here but be safe and spin a while */ } +static void rdc321x_reset(struct pci_dev *dev) +{ + unsigned i; + /* Voluntary reset the watchdog timer */ + outl(0x80003840, 0xCF8); + /* Generate a CPU reset on next tick */ + i = inl(0xCFC); + /* Use the minimum timer resolution */ + i |= 0x1600; + outl(i, 0xCFC); + outb(1, 0x92); +} + struct device_fixup { unsigned int vendor; unsigned int device; @@ -40,6 +53,7 @@ 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 }, { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset }, +{ PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030, rdc321x_reset }, }; /* -- 2.20.1