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| author | Florian Fainelli <florian.fainelli@telecomint.eu> | 2008-01-30 13:33:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:36 +0100 |
| commit | ff472a114ca11f5354912745fbb94bb66ec10916 (patch) | |
| tree | fc3c539709c75ea0630987845dcb2ec811becbcb /arch/x86/kernel/reboot_fixups_32.c | |
| parent | 5e3a77e9a9b7bfc1f69f51fe6d34aa649887980c (diff) | |
| download | linux-stable-ff472a114ca11f5354912745fbb94bb66ec10916.tar.gz linux-stable-ff472a114ca11f5354912745fbb94bb66ec10916.tar.bz2 linux-stable-ff472a114ca11f5354912745fbb94bb66ec10916.zip | |
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 <florian.fainelli@telecomint.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/reboot_fixups_32.c')
| -rw-r--r-- | arch/x86/kernel/reboot_fixups_32.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c index f452726c0fe2..dec0b5ec25c2 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 }, }; /* |