From mboxrd@z Thu Jan 1 00:00:00 1970 From: jason.hui@linaro.org (Jason Liu) Date: Tue, 23 Aug 2011 21:07:39 +0800 Subject: [PATCH 1/6] ARM: imx: Introduce generic function for displaying silicon revision In-Reply-To: <1314104864-3725-1-git-send-email-jason.hui@linaro.org> References: <1314104864-3725-1-git-send-email-jason.hui@linaro.org> Message-ID: <1314104864-3725-2-git-send-email-jason.hui@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Fabio Estevam 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 --- arch/arm/plat-mxc/cpu.c | 10 ++++++++++ arch/arm/plat-mxc/include/mach/common.h | 1 + 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index 386e0d5..f081ef0 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 +10,12 @@ 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); +} +EXPORT_SYMBOL(imx_print_silicon_rev); diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 4e3d978..318e0da 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 -- 1.7.4.1