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-rw-r--r--arch/mips/alchemy/common/setup.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 566a1743f685..8267e3c97721 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -67,6 +67,12 @@ void __init plat_mem_setup(void)
case ALCHEMY_CPU_AU1500:
case ALCHEMY_CPU_AU1100:
coherentio = 0;
+ break;
+ case ALCHEMY_CPU_AU1200:
+ /* Au1200 AB USB does not support coherent memory */
+ if (0 == (read_c0_prid() & PRID_REV_MASK))
+ coherentio = 0;
+ break;
}
board_setup(); /* board specific setup */