Attachment 147966 Details for Bug 223750 – Patch to add a quirk for ide controller on tiger-4

[patch] Patch to add a quirk for ide controller on tiger-4

ata_quirks_2.6.20_v2.patch (text/plain), 1.78 KB, created by Zhang Yanmin on 2007-02-13 09:22:45 UTC

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Creator: Zhang Yanmin

Created: 2007-02-13 09:22:45 UTC

Size: 1.78 KB

patch

obsolete

>--- linux-2.6.20/arch/ia64/kernel/quirks.c	1970-01-01 08:00:00.000000000 +0800
>+++ linux-2.6.20_fix/arch/ia64/kernel/quirks.c	2007-02-12 23:31:28.000000000 +0800
>@@ -0,0 +1,47 @@
>+/*
>+ * This file contains work-arounds for ia64 platform bugs.
>+ */
>+#include <linux/pci.h>
>+
>+/*
>+ * quirk_intel_ide_controller: If an ide/ata controller is
>+ * at legacy mode, BIOS might initiates BAR(bar 0~3 and 5)
>+ * with incorrect value. This quirk will reset the incorrect
>+ * value to 0.
>+ */
>+static void __devinit quirk_intel_ide_controller(struct pci_dev *dev)
>+{
>+	unsigned int pos;
>+	struct resource *res;
>+	int fixed = 0;
>+	u8 tmp8;
>+	u8 mask;
>+
>+	if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
>+		return;
>+
>+	/* TODO: What if one channel is in native mode ... */
>+	pci_read_config_byte(dev, PCI_CLASS_PROG, &tmp8);
>+	mask = (1 << 2) | (1 << 0);
>+	if ((tmp8 & mask) == mask)
>+		return;
>+
>+	for( pos = 0; pos < 6; pos ++ ) {
>+		res = &dev->resource[pos];
>+		if (!(res->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
>+			continue;
>+
>+		if (!res->start && res->end) {
>+			res->start = res->end = 0;
>+			res->flags = 0;
>+			fixed = 1;
>+		}
>+	}
>+	if (fixed)
>+		printk(KERN_WARNING
>+			"PCI device %s: BIOS resource configuration fixed.\n",
>+			pci_name(dev));
>+}
>+
>+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_11, quirk_intel_ide_controller);
>+
>--- linux-2.6.20/arch/ia64/kernel/Makefile	2007-02-08 15:13:41.000000000 +0800
>+++ linux-2.6.20_fix/arch/ia64/kernel/Makefile	2007-02-12 22:49:39.000000000 +0800
>@@ -33,6 +33,7 @@ obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
> obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR)	+= uncached.o
> obj-$(CONFIG_AUDIT)		+= audit.o
> obj-$(CONFIG_PCI_MSI)		+= msi_ia64.o
>+obj-$(CONFIG_PCI)		+= quirks.o
> mca_recovery-y			+= mca_drv.o mca_drv_asm.o
> 
> obj-$(CONFIG_IA64_ESI)		+= esi.o

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