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sh: Record the major cut revision for probed SH-4A parts.
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt committed Jul 28, 2008
1 parent 09b5a10 commit 068f591
Showing 1 changed file with 5 additions and 4 deletions.
9 changes: 5 additions & 4 deletions arch/sh/kernel/cpu/sh4/probe.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;

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