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>
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 28e8ca0..6ac25f6 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -77,6 +77,8 @@
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 */
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index e70e3ac..51f6c51c 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -8,11 +8,23 @@
unsigned int __mxc_cpu_type;
EXPORT_SYMBOL(__mxc_cpu_type);
+static unsigned int imx_soc_revision;
+
void mxc_set_cpu_type(unsigned int type)
{
__mxc_cpu_type = type;
}
+void imx_set_soc_revision(unsigned int rev)
+{
+ imx_soc_revision = rev;
+}
+
+unsigned int imx_get_soc_revision(void)
+{
+ return imx_soc_revision;
+}
+
void imx_print_silicon_rev(const char *cpu, int srev)
{
if (srev == IMX_CHIP_REVISION_UNKNOWN)