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add wl-hdd ide workaround from #272

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SVN-Revision: 7093
This commit is contained in:
Felix Fietkau 2007-05-04 22:14:14 +00:00
parent 833bb8f485
commit c855d322c0
1 changed files with 41 additions and 0 deletions
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41
target/linux/brcm-2.4/patches/013-wl_hdd_pdc202xx.patch Normal file
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@ -0,0 +1,41 @@
--- linux.old/drivers/ide/pci/pdc202xx_old.c 2006-12-23 21:34:20.000000000 +0100
+++ linux.dev/drivers/ide/pci/pdc202xx_old.c 2007-01-24 18:03:28.000000000 +0100
@@ -253,23 +253,23 @@
pci_read_config_byte(dev, (drive_pci)|0x03, &DP);
if (speed < XFER_SW_DMA_0) {
- if ((AP & 0x0F) || (BP & 0x07)) {
+ if ((AP & 0x0F) || (BP & 0x17)) {
/* clear PIO modes of lower 8421 bits of A Register */
pci_write_config_byte(dev, (drive_pci), AP &~0x0F);
pci_read_config_byte(dev, (drive_pci), &AP);
/* clear PIO modes of lower 421 bits of B Register */
- pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x07);
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x17);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
pci_read_config_byte(dev, (drive_pci), &AP);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
}
} else {
- if ((BP & 0xF0) && (CP & 0x0F)) {
+ if ((BP & 0xE0) && (CP & 0x0F)) {
/* clear DMA modes of upper 842 bits of B Register */
/* clear PIO forced mode upper 1 bit of B Register */
- pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xF0);
+ pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xE0);
pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
/* clear DMA modes of lower 8421 bits of C Register */
@@ -373,6 +373,9 @@
u8 ultra_66 = ((id->dma_ultra & 0x0010) ||
(id->dma_ultra & 0x0008)) ? 1 : 0;
+ if (hwif->rqsize != 256)
+ hwif->rqsize = 256;
+
switch(dev->device) {
case PCI_DEVICE_ID_PROMISE_20267:
case PCI_DEVICE_ID_PROMISE_20265: