add wl-hdd ide workaround from #272

SVN-Revision: 7093
18 years ago · c855d322c0
parent 833bb8f485
commit c855d322c0
1 changed files with 41 additions and 0 deletions
--- a/target/linux/brcm-2.4/patches/013-wl_hdd_pdc202xx.patch
+++ 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:
+