ARM: imx: Introduce generic function for displaying silicon revision (059e58f6) · Commits · 戴 / test

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>

arch/arm/plat-mxc/cpu.c

+9 −0

Original line number	Diff line number	Diff line

		#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);
		}

arch/arm/plat-mxc/include/mach/common.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -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

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