The patch titled
HPT37x: read f_CNT saved by BIOS from port
has been added to the -mm tree. Its filename is
ide-hpt3xx-fix-pci-clock-detection-fix-2.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: HPT37x: read f_CNT saved by BIOS from port
From: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
The undocumented register BIOS uses for saving f_CNT seems to only be
mapped to I/O space while all the other HPT3xx regs are dual-mapped. Looks
like another HighPoint's dirty trick. With this patch, the deadly kernel
oops on the cards having the modern HighPoint BIOSes is now at last gone!
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@xxxxxxxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/ide/pci/hpt366.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff -puN drivers/ide/pci/hpt366.c~ide-hpt3xx-fix-pci-clock-detection-fix-2 drivers/ide/pci/hpt366.c
--- devel/drivers/ide/pci/hpt366.c~ide-hpt3xx-fix-pci-clock-detection-fix-2 2006-05-20 02:03:46.000000000 -0700
+++ devel-akpm/drivers/ide/pci/hpt366.c 2006-05-20 02:03:46.000000000 -0700
@@ -1036,14 +1036,14 @@ static void __devinit hpt37x_clocking(id
* First try reading the register in which the HighPoint BIOS
* saves f_CNT value before reprogramming the DPLL from its
* default setting (which differs for the various chips).
+ * NOTE: This register is only accessible via I/O space.
+ *
* In case the signature check fails, we'll have to resort to
* reading the f_CNT register itself in hopes that nobody has
* touched the DPLL yet...
*/
- pci_read_config_dword(dev, 0x70, &temp);
+ temp = inl(pci_resource_start(dev, 4) + 0x90);
if ((temp & 0xFFFFF000) != 0xABCDE000) {
- int i;
-
printk(KERN_WARNING "HPT37X: no clock data saved by BIOS\n");
/* Calculate the average value of f_CNT */
_
Patches currently in -mm which might be from sshtylyov@xxxxxxxxxxxxx are
git-mtd.patch
git-netdev-all.patch
ide-claim-extra-dma-ports-regardless-of-channel.patch
ide-remove-dma_base2-field-form-ide_hwif_t.patch
ide-always-release-dma-engine.patch
ide-hpt3xxn-clocking-fixes.patch
ide-actually-honor-drives-minimum-pio-dma-cycle-times.patch
ide-fix-hpt37x-timing-tables.patch
ide-optimize-hpt37x-timing-tables.patch
ide-fix-hpt3xx-hotswap-support.patch
ide-fix-the-case-of-multiple-hpt3xx-chips-present.patch
ide-hpt3xx-fix-pci-clock-detection.patch
ide-hpt3xx-fix-pci-clock-detection-fix-2.patch
ide-pdc202xx_old-remove-the-obsolete-busproc.patch
piix-fix-82371mx-enablebits.patch
piix-remove-check-for-broken-mw-dma-mode-0.patch
piix-slc90e66-pio-mode-fallback-fix.patch
ide_dma_speed-fixes.patch
ide_dma_speed-fixes-warning-fix.patch
ide_dma_speed-fixes-tidy.patch
hpt3xx-rework-rate-filtering.patch
hpt3xx-rework-rate-filtering-tidy.patch
-
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