i.MX51: determine silicon revision dynamically

Freescale redboot passes the silicon revision via
ATAG_REVISION. Remove this bootloader dependency by
doing the same as redboot does in the Kernel.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 7 insertions, 6 deletions

diff --git a/arch/arm/plat-mxc/include/mach/mx51.h b/arch/arm/plat-mxc/include/mach/mx51.h
index f1396bd5621f..fd255a9dbcdc 100644
--- a/arch/arm/plat-mxc/include/mach/mx51.h
+++ b/arch/arm/plat-mxc/include/mach/mx51.h
@@ -28,6 +28,12 @@
  */
 
 /*
+ * IROM
+ */
+#define MX51_IROM_BASE_ADDR             0x0
+#define MX51_IROM_SIZE                  SZ_64K
+
+/*
  * IRAM
  */
 #define MX51_IRAM_BASE_ADDR             0x1FFE0000      /* internal ram */
@@ -438,12 +444,7 @@
 
 #if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS)
 
-extern unsigned int system_rev;
-
-static inline unsigned int mx51_revision(void)
-{
-        return system_rev;
-}
+extern int mx51_revision(void);
 #endif
 
 #endif  /*  __ASM_ARCH_MXC_MX51_H__ */