1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/ti81xx.h b/arch/arm/mach-omap2/ti81xx.h
index 8f9843f78422..a1e6caf0dba6 100644
--- a/arch/arm/mach-omap2/ti81xx.h
+++ b/arch/arm/mach-omap2/ti81xx.h
@@ -22,6 +22,15 @@
 #define TI81XX_CTRL_BASE        TI81XX_SCM_BASE
 #define TI81XX_PRCM_BASE        0x48180000
 
+/*
+ * Adjust TAP register base such that omap3_check_revision accesses the correct
+ * TI81XX register for checking device ID (it adds 0x204 to tap base while
+ * TI81XX DEVICE ID register is at offset 0x600 from control base).
+ */
+#define TI81XX_TAP_BASE         (TI81XX_CTRL_BASE + \
+                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
+
+
 #define TI81XX_ARM_INTC_BASE    0x48200000
 
 #endif /* __ASM_ARCH_TI81XX_H */