From: jason.hui@linaro.org (Jason Liu)
To: linux-arm-kernel@lists.infradead.org
Subject: [[PATCH v3 1/6] ARM: imx: Introduce generic function for displaying silicon revision
Date: Fri, 26 Aug 2011 13:35:18 +0800 [thread overview]
Message-ID: <1314336923-25162-2-git-send-email-jason.hui@linaro.org> (raw)
In-Reply-To: <1314336923-25162-1-git-send-email-jason.hui@linaro.org>
From: Fabio Estevam <fabio.estevam@freescale.com>
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>
---
V2: remove EXPORT_SYMBOL
---
arch/arm/plat-mxc/cpu.c | 9 +++++++++
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 386e0d5..f5b7e0f 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 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
next prev parent reply other threads:[~2011-08-26 5:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-26 5:35 [[PATCH v3 0/6] imx soc revision clean up Jason Liu
2011-08-26 5:35 ` Jason Liu [this message]
2011-08-26 5:35 ` [[PATCH v3 2/6] ARM: mx25: Print silicon revision on boot Jason Liu
2011-08-26 5:35 ` [[PATCH v3 3/6] ARM: mx27: " Jason Liu
2011-08-26 5:35 ` [[PATCH v3 4/6] ARM: mx31: use generic function for displaying silicon revision Jason Liu
2011-08-26 5:35 ` [[PATCH v3 5/6] ARM: mx35: " Jason Liu
2011-08-26 5:35 ` [[PATCH v3 6/6] ARM: mx5: " Jason Liu
2011-08-26 8:18 ` [[PATCH v3 0/6] imx soc revision clean up Sascha Hauer
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