diff options
Diffstat (limited to 'target/linux/ifxmips/patches-2.6.30/000-mips-bad-intctl.patch')
| -rw-r--r-- | target/linux/ifxmips/patches-2.6.30/000-mips-bad-intctl.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/ifxmips/patches-2.6.30/000-mips-bad-intctl.patch b/target/linux/ifxmips/patches-2.6.30/000-mips-bad-intctl.patch new file mode 100644 index 000000000..bd1b399c1 --- /dev/null +++ b/target/linux/ifxmips/patches-2.6.30/000-mips-bad-intctl.patch @@ -0,0 +1,36 @@ +Index: linux-2.6.30.5/arch/mips/kernel/traps.c +=================================================================== +--- linux-2.6.30.5.orig/arch/mips/kernel/traps.c 2009-08-16 23:19:38.000000000 +0200 ++++ linux-2.6.30.5/arch/mips/kernel/traps.c 2009-09-02 18:23:37.000000000 +0200 +@@ -1542,7 +1542,16 @@ + */ + if (cpu_has_mips_r2) { + cp0_compare_irq = (read_c0_intctl() >> 29) & 7; ++ if (!cp0_compare_irq) ++ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ; ++ + cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7; ++ if (!cp0_perfcount_irq) ++ cp0_perfcount_irq = CP0_LEGACY_PERFCNT_IRQ; ++ ++ if (arch_fixup_c0_irqs) ++ arch_fixup_c0_irqs(); ++ + if (cp0_perfcount_irq == cp0_compare_irq) + cp0_perfcount_irq = -1; + } else { +Index: linux-2.6.30.5/arch/mips/include/asm/irq.h +=================================================================== +--- linux-2.6.30.5.orig/arch/mips/include/asm/irq.h 2009-09-02 18:24:49.000000000 +0200 ++++ linux-2.6.30.5/arch/mips/include/asm/irq.h 2009-09-02 18:26:05.000000000 +0200 +@@ -157,8 +157,10 @@ + * IE7. Since R2 their number has to be read from the c0_intctl register. + */ + #define CP0_LEGACY_COMPARE_IRQ 7 ++#define CP0_LEGACY_PERFCNT_IRQ 7 + + extern int cp0_compare_irq; + extern int cp0_perfcount_irq; ++extern void __weak arch_fixup_c0_irqs(void); + + #endif /* _ASM_IRQ_H */ |