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-rw-r--r--arch/arm/mach-imx/cpu-imx27.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/cpu-imx27.c b/arch/arm/mach-imx/cpu-imx27.c
index d8d3b2d84dc..3b117be37bd 100644
--- a/arch/arm/mach-imx/cpu-imx27.c
+++ b/arch/arm/mach-imx/cpu-imx27.c
@@ -42,7 +42,19 @@ static void query_silicon_parameter(void)
val = __raw_readl(MX27_IO_ADDRESS(MX27_SYSCTRL_BASE_ADDR
+ SYS_CHIP_ID));
- cpu_silicon_rev = (int)(val >> 28);
+ switch (val >> 28) {
+ case 0:
+ cpu_silicon_rev = IMX_CHIP_REVISION_1_0;
+ break;
+ case 1:
+ cpu_silicon_rev = IMX_CHIP_REVISION_2_0;
+ break;
+ case 2:
+ cpu_silicon_rev = IMX_CHIP_REVISION_2_1;
+ break;
+ default:
+ cpu_silicon_rev = IMX_CHIP_REVISION_UNKNOWN;
+ }
cpu_partnumber = (int)((val >> 12) & 0xFFFF);
}