add wl-hdd ide workaround from #272

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7093 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/brcm-2.4/patches/013-wl_hdd_pdc202xx.patch b/target/linux/brcm-2.4/patches/013-wl_hdd_pdc202xx.patch
new file mode 100644 (file)
index 0000000..63e0cd6
--- /dev/null
+++ b/target/linux/brcm-2.4/patches/013-wl_hdd_pdc202xx.patch
@@ -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:
+