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authorJohn Crispin <john@openwrt.org>2010-04-10 20:11:28 +0000
committerJohn Crispin <john@openwrt.org>2010-04-10 20:11:28 +0000
commitb4d0b6cbb34d1cd5c71c122c2137e32476ec342a (patch)
tree39d1d9278deef057a8d2ccfe5e9d55325f28a991 /target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch
parentbe4d9660e8cb66fde329d829a53b1bd75382351e (diff)
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adss 2.6.33 kernel patches, not defult yet as linux-atm breaks on 2.6.33
SVN-Revision: 20789
Diffstat (limited to 'target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch')
-rw-r--r--target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch39
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch b/target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch
new file mode 100644
index 0000000000..efecbf1f75
--- /dev/null
+++ b/target/linux/ifxmips/patches-2.6.33/000-mips-bad-intctl.patch
@@ -0,0 +1,39 @@
+Index: linux-2.6.33.2/arch/mips/kernel/traps.c
+===================================================================
+--- linux-2.6.33.2.orig/arch/mips/kernel/traps.c 2010-04-02 01:02:33.000000000 +0200
++++ linux-2.6.33.2/arch/mips/kernel/traps.c 2010-04-02 23:36:16.000000000 +0200
+@@ -1496,7 +1496,18 @@
+ if (cpu_has_mips_r2) {
+ cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
+ cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
++
++ if (!cp0_compare_irq)
++ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
++
+ cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 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-2.6.33.2/arch/mips/include/asm/irq.h
+===================================================================
+--- linux-2.6.33.2.orig/arch/mips/include/asm/irq.h 2010-04-02 01:02:33.000000000 +0200
++++ linux-2.6.33.2/arch/mips/include/asm/irq.h 2010-04-02 23:37:14.000000000 +0200
+@@ -133,9 +133,11 @@
+ * 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_compare_irq_shift;
+ extern int cp0_perfcount_irq;
++extern void __weak arch_fixup_c0_irqs(void);
+
+ #endif /* _ASM_IRQ_H */