Messages in this thread Patch in this message | | | From | Florian Fainelli <> | Subject | Re: [PATCH 4/4 resend] [x86] : Add the RDC machine specific reboot fixup | Date | Thu, 18 Oct 2007 15:59:00 +0200 |
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This one also had the attachment, sorry for the noise.
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> --- 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 8b30b26..26e23fc 100644 --- a/arch/x86/kernel/reboot_fixups_32.c +++ b/arch/x86/kernel/reboot_fixups_32.c @@ -32,6 +32,19 @@ 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; @@ -41,6 +54,7 @@ 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 }, +{ PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030, rdc321x_reset }, }; /* - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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