Hi Ralf,
Attached patch supports 8-bit and 16-bit PCI operations on TX4927 in big endian mode. Please review and/or apply
Thanks
Manish Lachwani
Source: MontaVista Software, Inc. | URL | Manish Lachwani <mlachwani@xxxxxxxxxx>
MR: 9909
Type: Defect Fix
Disposition: Submitted to linux-mips.org
Keywords:
Signed-off-by: Manish Lachwani <mlachwani@xxxxxxxxxx>
Description:
Support for BE mode on Tx4927 based board
Index: linux-2.6.10/arch/mips/pci/ops-tx4927.c
===================================================================
--- linux-2.6.10.orig/arch/mips/pci/ops-tx4927.c
+++ linux-2.6.10/arch/mips/pci/ops-tx4927.c
@@ -130,11 +130,21 @@
switch (size) {
case 1:
*val = *(volatile u8 *) ((ulong) & tx4927_pcicptr->
- g2pcfgdata | (where & 3));
+ g2pcfgdata |
+#ifdef __LITTLE_ENDIAN
+ (where & 3));
+#else
+ ((where & 0x3) ^ 0x3));
+#endif
break;
case 2:
*val = *(volatile u16 *) ((ulong) & tx4927_pcicptr->
- g2pcfgdata | (where & 3));
+ g2pcfgdata |
+#ifdef __LITTLE_ENDIAN
+ (where & 3));
+#else
+ ((where & 0x3) ^ 0x2));
+#endif
break;
case 4:
*val = tx4927_pcicptr->g2pcfgdata;
@@ -179,12 +189,22 @@
switch (size) {
case 1:
*(volatile u8 *) ((ulong) & tx4927_pcicptr->
- g2pcfgdata | (where & 3)) = val;
+ g2pcfgdata |
+#ifdef __LITTLE_ENDIAN
+ (where & 3)) = val;
+#else
+ ((where & 0x3) ^ 0x3)) = val;
+#endif
break;
case 2:
*(volatile u16 *) ((ulong) & tx4927_pcicptr->
- g2pcfgdata | (where & 3)) = val;
+ g2pcfgdata |
+#ifdef __LITTLE_ENDIAN
+ (where & 3)) = val;
+#else
+ ((where & 0x3) ^ 0x2)) = val;
+#endif
break;
case 4:
tx4927_pcicptr->g2pcfgdata = val;
