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enable 2.6.24 to run on ar53xx

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SVN-Revision: 10957
This commit is contained in:
Gabor Juhos 2008-04-27 17:40:02 +00:00
parent a4dd1adf4a
commit 408fd8097f
2 changed files with 61 additions and 0 deletions
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12
target/linux/atheros/patches-2.6.24/900-cevt_r4k_irq_disable_hazard.patch Normal file
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@ -0,0 +1,12 @@
Index: linux-2.6.24.2/arch/mips/kernel/cevt-r4k.c
===================================================================
--- linux-2.6.24.2.orig/arch/mips/kernel/cevt-r4k.c
+++ linux-2.6.24.2/arch/mips/kernel/cevt-r4k.c
@@ -205,6 +205,7 @@ static int c0_compare_int_usable(void)
while ((int)(read_c0_count() - cnt) <= 0)
; /* Wait for expiry */
+ irq_disable_hazard();
if (!c0_compare_int_pending())
return 0;

49
target/linux/atheros/patches-2.6.24/901-get_c0_compare_irq_function.patch Normal file
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@ -0,0 +1,49 @@
Index: linux-2.6.24.2/arch/mips/kernel/traps.c
===================================================================
--- linux-2.6.24.2.orig/arch/mips/kernel/traps.c
+++ linux-2.6.24.2/arch/mips/kernel/traps.c
@@ -42,6 +42,7 @@
#include <asm/mmu_context.h>
#include <asm/types.h>
#include <asm/stacktrace.h>
+#include <asm/time.h>
extern asmlinkage void handle_int(void);
extern asmlinkage void handle_tlbm(void);
@@ -1360,6 +1361,8 @@ void __init per_cpu_trap_init(void)
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ if (get_c0_compare_irq)
+ cp0_compare_irq = get_c0_compare_irq();
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
Index: linux-2.6.24.2/include/asm-mips/time.h
===================================================================
--- linux-2.6.24.2.orig/include/asm-mips/time.h
+++ linux-2.6.24.2/include/asm-mips/time.h
@@ -60,6 +60,7 @@ extern int (*perf_irq)(void);
#ifdef CONFIG_CEVT_R4K
extern int mips_clockevent_init(void);
extern unsigned int __weak get_c0_compare_int(void);
+extern unsigned int __weak get_c0_compare_irq(void);
#else
static inline int mips_clockevent_init(void)
{
Index: linux-2.6.24.2/arch/mips/atheros/board.c
===================================================================
--- linux-2.6.24.2.orig/arch/mips/atheros/board.c
+++ linux-2.6.24.2/arch/mips/atheros/board.c
@@ -205,6 +205,11 @@ void (*board_time_init)(void);
void __init plat_time_init(void) {
board_time_init();
}
+
+unsigned int __init get_c0_counter_irq(void)
+{
+ return CP0_LEGACY_COMPARE_IRQ;
+}
#endif
void __init arch_init_irq(void)