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brcm47xx: add a few nops to keep the cpu happy

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6568 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2007-03-15 12:07:43 +00:00
parent 2c83d00ba1
commit 482438fa91
1 changed files with 28 additions and 0 deletions
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28
target/linux/brcm47xx-2.6/patches/150-cpu_fixes.patch Normal file
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@ -0,0 +1,28 @@
diff -urN linux-2.6.19.ref/arch/mips/kernel/genex.S linux-2.6.19/arch/mips/kernel/genex.S
--- linux-2.6.19.ref/arch/mips/kernel/genex.S 2006-11-29 22:57:37.000000000 +0100
+++ linux-2.6.19/arch/mips/kernel/genex.S 2006-12-04 21:34:09.000000000 +0100
@@ -73,6 +73,10 @@
.set push
.set mips3
.set noat
+#ifdef CONFIG_BCM947XX
+ nop
+ nop
+#endif
mfc0 k1, CP0_CAUSE
li k0, 31<<2
andi k1, k1, 0x7c
diff -urN linux-2.6.19.ref/include/asm-mips/stackframe.h linux-2.6.19/include/asm-mips/stackframe.h
--- linux-2.6.19.ref/include/asm-mips/stackframe.h 2006-11-29 22:57:37.000000000 +0100
+++ linux-2.6.19/include/asm-mips/stackframe.h 2006-12-04 21:34:09.000000000 +0100
@@ -334,6 +334,10 @@
.macro RESTORE_SP_AND_RET
LONG_L sp, PT_R29(sp)
.set mips3
+#ifdef CONFIG_BCM947XX
+ nop
+ nop
+#endif
eret
.set mips0
.endm