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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2011-08-26 13:35:18 +0800 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-08-26 08:50:58 +0200 |
| commit | 059e58f6f3db8f563c7fef860b69c4e148f397ae (patch) | |
| tree | fe9d8e50207b6a46c93a7c55d77743fd72f02dc0 | |
| parent | fcb8ce5cfe30ca9ca5c9a79cdfe26d1993e65e0c (diff) | |
| download | lwn-059e58f6f3db8f563c7fef860b69c4e148f397ae.tar.gz lwn-059e58f6f3db8f563c7fef860b69c4e148f397ae.zip | |
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 <fabio.estevam@freescale.com>
Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/plat-mxc/cpu.c | 9 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/common.h | 1 |
2 files changed, 10 insertions, 0 deletions
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 <linux/module.h> +#include <mach/hardware.h> 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 |