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Message-Id: <1273587331-24604-3-git-send-email-eduardo.valentin@nokia.com>
Date: Tue, 11 May 2010 17:15:30 +0300
From: Eduardo Valentin <eduardo.valentin@...ia.com>
To: LKML <linux-kernel@...r.kernel.org>,
linux-arm-kernel@...ts.infradead.org,
Linux-OMAP <linux-omap@...r.kernel.org>
Cc: Russell King <linux@....linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
ext Tony Lindgren <tony@...mide.com>,
ext Kevin Hilman <khilman@...prootsystems.com>,
Peter De-Schrijver <Peter.De-Schrijver@...ia.com>,
santosh.shilimkar@...com, Ambresh <a0393775@...com>,
felipe.balbi@...ia.com, Jouni Hogander <jouni.hogander@...ia.com>,
Paul Mundt <lethal@...ux-sh.org>,
Eduardo Valentin <eduardo.valentin@...ia.com>
Subject: [PATCHv5 2/3] OMAP: export OMAP info under /proc/socinfo
From: Eduardo Valentin <eduardo.valentin@...ia.com>
Export OMAP name and rev under /proc/socinfo node.
Signed-off-by: Eduardo Valentin <eduardo.valentin@...ia.com>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-omap1/id.c | 31 ++++++++++++++++++++++++-------
arch/arm/mach-omap2/id.c | 32 ++++++++++++++++++++++++++------
3 files changed, 51 insertions(+), 13 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 92622eb..fbd3c50 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -326,6 +326,7 @@ config ARCH_EP93XX
select COMMON_CLKDEV
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_HOLES_MEMORYMODEL
+ select PROC_SOC_INFO
help
This enables support for the Cirrus EP93xx series of CPUs.
diff --git a/arch/arm/mach-omap1/id.c b/arch/arm/mach-omap1/id.c
index a0e3560..ef3caf1 100644
--- a/arch/arm/mach-omap1/id.c
+++ b/arch/arm/mach-omap1/id.c
@@ -15,6 +15,8 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/socinfo.h>
+#include <linux/seq_file.h>
#include <plat/cpu.h>
#define OMAP_DIE_ID_0 0xfffe1800
@@ -118,9 +120,21 @@ static u8 __init omap_get_die_rev(void)
return die_rev;
}
+#define SOCINFO_SZ 128
+
+static int omap1_socinfo_show(struct seq_file *m, void *v)
+{
+ char *socinfo = v;
+
+ seq_printf(m, "SoC\t: %s\n", socinfo);
+
+ return 0;
+}
+
void __init omap_check_revision(void)
{
- int i;
+ int i, sz;
+ char socinfo[SOCINFO_SZ];
u16 jtag_id;
u8 die_rev;
u32 omap_id;
@@ -194,11 +208,14 @@ void __init omap_check_revision(void)
printk(KERN_INFO "Unknown OMAP cpu type: 0x%02x\n", cpu_type);
}
- printk(KERN_INFO "OMAP%04x", omap_revision >> 16);
+ sz = snprintf(socinfo, SOCINFO_SZ, "OMAP%04x", omap_revision >> 16);
if ((omap_revision >> 8) & 0xff)
- printk(KERN_INFO "%x", (omap_revision >> 8) & 0xff);
- printk(KERN_INFO " revision %i handled as %02xxx id: %08x%08x\n",
- die_rev, omap_revision & 0xff, system_serial_low,
- system_serial_high);
+ snprintf(socinfo + sz, SOCINFO_SZ - sz, "%x",
+ (omap_revision >> 8) & 0xff);
+ pr_info("%s revision %i handled as %02xxx id: %08x%08x\n",
+ socinfo, die_rev, omap_revision & 0xff, system_serial_low,
+ system_serial_high);
+
+ /* register function to show SoC info under /proc/socinfo */
+ register_socinfo_show(omap1_socinfo_show, kstrdup(socinfo, GFP_KERNEL));
}
-
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 37b8a1a..b67486b 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -18,6 +18,8 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/socinfo.h>
+#include <linux/seq_file.h>
#include <asm/cputype.h>
@@ -101,10 +103,12 @@ static struct omap_id omap_ids[] __initdata = {
static void __iomem *tap_base;
static u16 tap_prod_id;
+#define SOCINFO_SZ 128
+static char socinfo[SOCINFO_SZ];
void __init omap24xx_check_revision(void)
{
- int i, j;
+ int i, j, sz;
u32 idcode, prod_id;
u16 hawkeye;
u8 dev_type, rev;
@@ -152,10 +156,11 @@ void __init omap24xx_check_revision(void)
j = i;
}
- pr_info("OMAP%04x", omap_rev() >> 16);
+ sz = snprintf(socinfo, SOCINFO_SZ, "OMAP%04x", omap_rev() >> 16);
if ((omap_rev() >> 8) & 0x0f)
- pr_info("ES%x", (omap_rev() >> 12) & 0xf);
- pr_info("\n");
+ snprintf(socinfo + sz, SOCINFO_SZ - sz, "ES%x",
+ (omap_rev() >> 12) & 0xf);
+ pr_info("%s\n", socinfo);
}
#define OMAP3_CHECK_FEATURE(status,feat) \
@@ -286,7 +291,9 @@ void __init omap4_check_revision(void)
if ((hawkeye == 0xb852) && (rev == 0x0)) {
omap_revision = OMAP4430_REV_ES1_0;
omap_chip.oc |= CHIP_IS_OMAP4430ES1;
- pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
+ snprintf(socinfo, SOCINFO_SZ, "OMAP%04x %s\n",
+ omap_rev() >> 16, rev_name);
+ pr_info("%s\n", socinfo);
return;
}
@@ -356,7 +363,8 @@ void __init omap3_cpuinfo(void)
}
/* Print verbose information */
- pr_info("%s ES%s (", cpu_name, cpu_rev);
+ snprintf(socinfo, SOCINFO_SZ, "%s ES%s", cpu_name, cpu_rev);
+ pr_info("%s (", socinfo);
OMAP3_SHOW_FEATURE(l2cache);
OMAP3_SHOW_FEATURE(iva);
@@ -368,6 +376,15 @@ void __init omap3_cpuinfo(void)
printk(")\n");
}
+static int omap_socinfo_show(struct seq_file *m, void *v)
+{
+ char *socinfop = v;
+
+ seq_printf(m, "SoC\t: %s\n", socinfop);
+
+ return 0;
+}
+
/*
* Try to detect the exact revision of the omap we're running on
*/
@@ -391,6 +408,9 @@ void __init omap2_check_revision(void)
pr_err("OMAP revision unknown, please fix!\n");
}
+ /* also register call back to report SoC data under /proc/socinfo */
+ register_socinfo_show(omap_socinfo_show, socinfo);
+
/*
* OK, now we know the exact revision. Initialize omap_chip bits
* for powerdowmain and clockdomain code.
--
1.7.0.4.361.g8b5fe.dirty
--
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