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 d8d3b2d84dc5..3b117be37bd2 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);
 }