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authorRalf Baechle <ralf@linux-mips.org>2007-07-05 08:14:21 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-07-06 16:17:11 +0100
commit075c733e19ce7530b53b78151cc4d303c8f64548 (patch)
treec4f3e9a373b924794c97f5964cd55b121918ab41
parent9349075a15a876f8e82f433ec84f99d19d3e77f9 (diff)
downloadlinux-stericsson-075c733e19ce7530b53b78151cc4d303c8f64548.tar.gz
[MIPS] RM7000: Enable ICACHE_REFILLS_WORKAROUND_WAR.
The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra opposes it being called that) where invalid instructions in the same I-cache line worth of instructions being fetched may case spurious exceptions. The workaround for this was only enabled for E9000 cores; enable it also for all RM7000-based platforms. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--include/asm-mips/war.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/include/asm-mips/war.h b/include/asm-mips/war.h
index 13a3502eef44..ec0eeebd8802 100644
--- a/include/asm-mips/war.h
+++ b/include/asm-mips/war.h
@@ -177,18 +177,22 @@
#endif
/*
- * The RM9000 has a bug (though PMC-Sierra opposes it being called that)
- * where invalid instructions in the same I-cache line worth of instructions
- * being fetched may case spurious exceptions.
- */
-#if defined(CONFIG_MOMENCO_JAGUAR_ATX) || defined(CONFIG_MOMENCO_OCELOT_3) || \
- defined(CONFIG_PMC_YOSEMITE) || defined(CONFIG_BASLER_EXCITE)
+ * The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
+ * opposes it being called that) where invalid instructions in the same
+ * I-cache line worth of instructions being fetched may case spurious
+ * exceptions.
+ */
+#if defined(CONFIG_BASLER_EXCITE) || defined(CONFIG_MOMENCO_JAGUAR_ATX) || \
+ defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA) || \
+ defined(CONFIG_MOMENCO_OCELOT) || defined(CONFIG_MOMENCO_OCELOT_3) || \
+ defined(CONFIG_MOMENCO_OCELOT_C) || defined(CONFIG_PMC_YOSEMITE) || \
+ defined(CONFIG_SGI_IP32) || defined(CONFIG_WR_PPMC)
#define ICACHE_REFILLS_WORKAROUND_WAR 1
#endif
/*
- * ON the R10000 upto version 2.6 (not sure about 2.7) there is a bug that
+ * On the R10000 upto version 2.6 (not sure about 2.7) there is a bug that
* may cause ll / sc and lld / scd sequences to execute non-atomically.
*/
#ifdef CONFIG_SGI_IP27