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authorMatteo Croce <rootkit85@yahoo.it>2007-09-17 12:45:38 +0000
committerMatteo Croce <rootkit85@yahoo.it>2007-09-17 12:45:38 +0000
commitaa1144ff37d7a35649aa6e37fb3d6899f3880ee9 (patch)
treebb7b8fb0ce89d785f6fcd1bf95bb1b0b3b77e597 /target
parent0d56d48d9aeecdbaaf30f3a4f8deb685f408c102 (diff)
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detect ar7 at runtime in set_except_vector and remove useless volatile
SVN-Revision: 8824
Diffstat (limited to 'target')
-rw-r--r--target/linux/ar7/patches-2.6.22/100-board_support.patch46
1 files changed, 25 insertions, 21 deletions
diff --git a/target/linux/ar7/patches-2.6.22/100-board_support.patch b/target/linux/ar7/patches-2.6.22/100-board_support.patch
index 0297ef651f..c7ea6cc2ae 100644
--- a/target/linux/ar7/patches-2.6.22/100-board_support.patch
+++ b/target/linux/ar7/patches-2.6.22/100-board_support.patch
@@ -26,31 +26,35 @@ diff -urN linux-2.6.22/arch/mips/Kconfig linux-2.6.22.new/arch/mips/Kconfig
diff -urN linux-2.6.22/arch/mips/kernel/traps.c linux-2.6.22.new/arch/mips/kernel/traps.c
--- linux-2.6.22/arch/mips/kernel/traps.c 2007-07-09 01:32:17.000000000 +0200
+++ linux-2.6.22.new/arch/mips/kernel/traps.c 2007-07-11 02:32:39.000000000 +0200
-@@ -1075,9 +1075,23 @@ void *set_except_vector(int n, void *addr)
+@@ -1074,11 +1074,23 @@ void *set_except_vector(int n, void *addr)
+ unsigned long old_handler = exception_handlers[n];
exception_handlers[n] = handler;
- if (n == 0 && cpu_has_divec) {
-+#ifdef CONFIG_AR7
-+ /* lui k0, 0x0000 */
-+ *(volatile u32 *)(ebase + 0x200) =
-+ 0x3c1a0000 | (handler >> 16);
-+ /* ori k0, 0x0000 */
-+ *(volatile u32 *)(ebase + 0x204) =
-+ 0x375a0000 | (handler & 0xffff);
-+ /* jr k0 */
-+ *(volatile u32 *)(ebase + 0x208) = 0x03400008;
-+ /* nop */
-+ *(volatile u32 *)(ebase + 0x20C) = 0x00000000;
-+ flush_icache_range(ebase + 0x200, ebase + 0x210);
-+#else
- *(volatile u32 *)(ebase + 0x200) = 0x08000000 |
- (0x03ffffff & (handler >> 2));
- flush_icache_range(ebase + 0x200, ebase + 0x204);
-+#endif
- }
+- if (n == 0 && cpu_has_divec) {
+- *(volatile u32 *)(ebase + 0x200) = 0x08000000 |
+- (0x03ffffff & (handler >> 2));
+- flush_icache_range(ebase + 0x200, ebase + 0x204);
+- }
++ if (n == 0 && cpu_has_divec)
++ if ((handler ^ (ebase + 4)) & 0xfc000000) {
++ /* lui k0, 0x0000 */
++ *(u32 *)(ebase + 0x200) = 0x3c1a0000 | (handler >> 16);
++ /* ori k0, 0x0000 */
++ *(u32 *)(ebase + 0x204) =
++ 0x375a0000 | (handler & 0xffff);
++ /* jr k0 */
++ *(u32 *)(ebase + 0x208) = 0x03400008;
++ /* nop */
++ *(u32 *)(ebase + 0x20C) = 0x00000000;
++ flush_icache_range(ebase + 0x200, ebase + 0x210);
++ } else {
++ *(volatile u32 *)(ebase + 0x200) =
++ 0x08000000 | (0x03ffffff & (handler >> 2));
++ flush_icache_range(ebase + 0x200, ebase + 0x204);
++ }
return (void *)old_handler;
}
-
+
diff -urN linux-2.6.22/arch/mips/Makefile linux-2.6.22.new/arch/mips/Makefile
--- linux-2.6.22/arch/mips/Makefile 2007-07-09 01:32:17.000000000 +0200
+++ linux-2.6.22.new/arch/mips/Makefile 2007-07-11 02:32:39.000000000 +0200