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ARM: imx: add soc revision helper functions

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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>
This commit is contained in:
Shawn Guo 2013-08-13 13:54:02 +08:00
parent c7c3eac627
commit bfefdff8f9
2 changed files with 14 additions and 0 deletions
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2
arch/arm/mach-imx/common.h
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@ -77,6 +77,8 @@ extern int imx6q_revision(void);
extern int mx53_display_revision(void); extern int mx53_display_revision(void);
extern void imx_set_aips(void __iomem *); extern void imx_set_aips(void __iomem *);
extern int mxc_device_init(void); 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 { enum mxc_cpu_pwr_mode {
WAIT_CLOCKED, /* wfi only */ WAIT_CLOCKED, /* wfi only */

12
arch/arm/mach-imx/cpu.c
View file

@ -8,11 +8,23 @@
unsigned int __mxc_cpu_type; unsigned int __mxc_cpu_type;
EXPORT_SYMBOL(__mxc_cpu_type); EXPORT_SYMBOL(__mxc_cpu_type);
static unsigned int imx_soc_revision;
void mxc_set_cpu_type(unsigned int type) void mxc_set_cpu_type(unsigned int type)
{ {
__mxc_cpu_type = 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) void imx_print_silicon_rev(const char *cpu, int srev)
{ {
if (srev == IMX_CHIP_REVISION_UNKNOWN) if (srev == IMX_CHIP_REVISION_UNKNOWN)