ARM: imx: Get the silicon version from the IIM module

Instead of reading the silicon version from ROM, we should
read the SREV register from the IIM.

Freescale has dropped all support for MX51 REV1.0, only MX51
REV 2.0 and 3.0 are valid.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index 4c17515650b8..4abbdd11d5c6 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -36,6 +36,20 @@
 #define MXC_CPU_MX53            53
 #define MXC_CPU_MXC91231        91231
 
+#define IMX_CHIP_REVISION_1_0           0x10
+#define IMX_CHIP_REVISION_1_1           0x11
+#define IMX_CHIP_REVISION_1_2           0x12
+#define IMX_CHIP_REVISION_1_3           0x13
+#define IMX_CHIP_REVISION_2_0           0x20
+#define IMX_CHIP_REVISION_2_1           0x21
+#define IMX_CHIP_REVISION_2_2           0x22
+#define IMX_CHIP_REVISION_2_3           0x23
+#define IMX_CHIP_REVISION_3_0           0x30
+#define IMX_CHIP_REVISION_3_1           0x31
+#define IMX_CHIP_REVISION_3_2           0x32
+#define IMX_CHIP_REVISION_3_3           0x33
+#define IMX_CHIP_REVISION_UNKNOWN       0xff
+
 #ifndef __ASSEMBLY__
 extern unsigned int __mxc_cpu_type;
 #endif