1 files changed, 29 insertions, 1 deletions

diff --git a/include/asm-arm/arch-mxc/mx31.h b/include/asm-arm/arch-mxc/mx31.h
index 85c49c9e5d1..36a1af495bb 100644
--- a/include/asm-arm/arch-mxc/mx31.h
+++ b/include/asm-arm/arch-mxc/mx31.h
@@ -317,6 +317,8 @@
 #define MXC_MAX_INT_LINES       64
 
 #define MXC_GPIO_INT_BASE       MXC_MAX_INT_LINES
+#define MXC_MAX_GPIO_LINES      (GPIO_NUM_PIN * GPIO_PORT_NUM)
+#define MXC_MAX_VIRTUAL_INTS    16
 
 /*!
  * Number of GPIO port as defined in the IC Spec
@@ -329,7 +331,33 @@
 
 #define PROD_SIGNATURE          0x1     /* For MX31 */
 
+/* silicon revisions specific to i.MX31 */
+#define CHIP_REV_1_0            0x10
+#define CHIP_REV_1_1            0x11
+#define CHIP_REV_1_2            0x12
+#define CHIP_REV_1_3            0x13
+#define CHIP_REV_2_0            0x20
+#define CHIP_REV_2_1            0x21
+#define CHIP_REV_2_2            0x22
+#define CHIP_REV_2_3            0x23
+#define CHIP_REV_3_0            0x30
+#define CHIP_REV_3_1            0x31
+#define CHIP_REV_3_2            0x32
+
 #define SYSTEM_REV_MIN          CHIP_REV_1_0
 #define SYSTEM_REV_NUM          3
 
-#endif                  /*  __ASM_ARCH_MXC_MX31_H__ */
+#if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS)
+
+/* this is a i.MX31 CPU */
+#define cpu_is_mx31()           (1)
+
+extern unsigned int system_rev;
+
+static inline int mx31_revision(void)
+{
+        return system_rev;
+}
+#endif
+
+#endif /*  __ASM_ARCH_MXC_MX31_H__ */