AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sh: Record the major cut revision for probed SH-4A parts.

Browse Source 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-07-02 17:46:40 +09:00
parent 09b5a10c19
commit 068f59143d
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/sh/kernel/cpu/sh4/probe.c
View File

@ -50,23 +50,24 @@ int __init detect_cpu_and_cache_system(void)
boot_cpu_data.dcache.ways = 1;
boot_cpu_data.dcache.linesz = L1_CACHE_BYTES;
/* We don't know the chip cut */
boot_cpu_data.cut_major = boot_cpu_data.cut_minor = -1;
/*
* Setup some generic flags we can probe on SH-4A parts
*/
if (((pvr >> 24) & 0xff) == 0x10) {
if (((pvr >> 16) & 0xff) == 0x10) {
if ((cvr & 0x10000000) == 0)
boot_cpu_data.flags |= CPU_HAS_DSP;
boot_cpu_data.flags |= CPU_HAS_LLSC;
boot_cpu_data.cut_major = pvr & 0x7f;
}
/* FPU detection works for everyone */
if ((cvr & 0x20000000) == 1)
boot_cpu_data.flags |= CPU_HAS_FPU;
/* We don't know the chip cut */
boot_cpu_data.cut_major = boot_cpu_data.cut_minor = -1;
/* Mask off the upper chip ID */
pvr &= 0xffff;