ARM: imx: add soc revision helper functions

Similar to what we do for cpu type, the patch adds helper functions
imx_set_soc_revision() and imx_get_soc_revision() to maintain
imx_soc_revision in cpu.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 28e8ca0871e8..6ac25f68a6bc 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -77,6 +77,8 @@ extern int imx6q_revision(void);
 extern int mx53_display_revision(void);
 extern void imx_set_aips(void __iomem *);
 extern int mxc_device_init(void);
+void imx_set_soc_revision(unsigned int rev);
+unsigned int imx_get_soc_revision(void);
 
 enum mxc_cpu_pwr_mode {
         WAIT_CLOCKED,           /* wfi only */