openwrtv3/target/linux/imx6/patches-3.12/0003-ARM-imx-add-soc-revision-helper-functions.patch
Luka Perkov df388048b4 imx6: add initial 3.12 support
Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 38574
2013-10-29 02:19:09 +00:00

52 lines
1.4 KiB
Diff

From bfefdff8f91aa0a9ff1291d18d54498af276a6e5 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 13:54:02 +0800
Subject: [PATCH] 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>
---
arch/arm/mach-imx/common.h | 2 ++
arch/arm/mach-imx/cpu.c | 12 ++++++++++++
2 files changed, 14 insertions(+)
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -81,6 +81,8 @@ 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 */
--- 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)