From 059e58f6f3db8f563c7fef860b69c4e148f397ae Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 26 Aug 2011 13:35:18 +0800 Subject: [PATCH] ARM: imx: Introduce generic function for displaying silicon revision Currently each i.MX processor has its own function for displaying the silicon revision. Introduce a generic function for this purpose, so that all i.MX processors can reuse it. Signed-off-by: Fabio Estevam Signed-off-by: Jason Liu Cc: Sascha Hauer Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/cpu.c | 9 +++++++++ arch/arm/plat-mxc/include/mach/common.h | 1 + 2 files changed, 10 insertions(+) diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index 386e0d52cf58..f5b7e0fa237f 100644 --- a/arch/arm/plat-mxc/cpu.c +++ b/arch/arm/plat-mxc/cpu.c @@ -1,5 +1,6 @@ #include +#include unsigned int __mxc_cpu_type; EXPORT_SYMBOL(__mxc_cpu_type); @@ -9,3 +10,11 @@ void mxc_set_cpu_type(unsigned int type) __mxc_cpu_type = type; } +void imx_print_silicon_rev(const char *cpu, int srev) +{ + if (srev == IMX_CHIP_REVISION_UNKNOWN) + pr_info("CPU identified as %s, unknown revision\n", cpu); + else + pr_info("CPU identified as %s, silicon rev %d.%d\n", + cpu, (srev >> 4) & 0xf, srev & 0xf); +} diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 4e3d97890d69..318e0da13a79 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -72,4 +72,5 @@ extern void mxc_arch_reset_init(void __iomem *); extern void mx51_efikamx_reset(void); extern int mx53_revision(void); extern int mx53_display_revision(void); +extern void imx_print_silicon_rev(const char *cpu, int srev); #endif -- 2.39.5