[PATCHv4 3/4] mach-omap1: export omap1 info under /proc/socinfo
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From: Eduardo Valentin on 10 May 2010 06:40 From: Eduardo Valentin <eduardo.valentin(a)nokia.com> Report OMAP name and rev under /proc/socinfo node. Signed-off-by: Eduardo Valentin <eduardo.valentin(a)nokia.com> --- arch/arm/mach-omap1/id.c | 45 +++++++++++++++++++++++++++++++++++++++------ 1 files changed, 39 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap1/id.c b/arch/arm/mach-omap1/id.c index a0e3560..917892b 100644 --- a/arch/arm/mach-omap1/id.c +++ b/arch/arm/mach-omap1/id.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/seq_file.h> #include <plat/cpu.h> #define OMAP_DIE_ID_0 0xfffe1800 @@ -118,9 +119,12 @@ static u8 __init omap_get_die_rev(void) return die_rev; } +#define SOCINFO_SZ 128 +static char socinfo[SOCINFO_SZ]; + void __init omap_check_revision(void) { - int i; + int i, sz; u16 jtag_id; u8 die_rev; u32 omap_id; @@ -194,11 +198,40 @@ 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); +} + +static int c_show(struct seq_file *m, void *v) +{ + seq_printf(m, "SoC\t: %s\n", socinfo); + + return 0; +} + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + return *pos < 1 ? (void *)1 : NULL; } +static void *c_next(struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return NULL; +} + +static void c_stop(struct seq_file *m, void *v) +{ +} + +const struct seq_operations socinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = c_show +}; -- 1.7.0.4.361.g8b5fe.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |