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MIPS: cpuinfo: import CPU message from Linux 3.4 

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Antony Pavlov 2012-05-22 16:17:01 +04:00 committed by Sascha Hauer
parent e41b0717dc
commit f3d865e29c
1 changed files with 25 additions and 2 deletions
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27
arch/mips/lib/cpuinfo.c
View File

@ -23,11 +23,34 @@
#include <common.h>
#include <command.h>
#include <asm/mipsregs.h>
#include <asm/cpu-info.h>
static char *way_string[] = { NULL, "direct mapped", "2-way",
"3-way", "4-way", "5-way", "6-way", "7-way", "8-way"
};
static int do_cpuinfo(int argc, char *argv[])
{
printf("CP0_PRID = 0x%08x\n", read_c0_prid());
printf("CP0_CONFIG = 0x%08x\n", read_c0_config());
unsigned int icache_size, dcache_size;
struct cpuinfo_mips *c = &current_cpu_data;
printk(KERN_INFO "CPU revision is: %08x (%s)\n",
current_cpu_data.processor_id, __cpu_name);
icache_size = c->icache.sets * c->icache.ways * c->icache.linesz;
dcache_size = c->dcache.sets * c->dcache.ways * c->dcache.linesz;
printk("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n",
icache_size >> 10,
c->icache.flags & MIPS_CACHE_VTAG ? "VIVT" : "VIPT",
way_string[c->icache.ways], c->icache.linesz);
printk("Primary data cache %ldkB, %s, %s, %s, linesize %d bytes\n",
dcache_size >> 10, way_string[c->dcache.ways],
(c->dcache.flags & MIPS_CACHE_PINDEX) ? "PIPT" : "VIPT",
(c->dcache.flags & MIPS_CACHE_ALIASES) ?
"cache aliases" : "no aliases",
c->dcache.linesz);
return 0;
}