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authorRobin Getz <rgetz@blackfin.uclinux.org>2008-10-10 18:21:45 +0800
committerBryan Wu <cooloney@kernel.org>2008-10-10 18:21:45 +0800
commite482cad241c0b7108cbc94959307a73d19ba17d5 (patch)
tree7cde7e1af828d74d55ec059d1955c5129b89a892 /arch/blackfin/kernel
parent6d0b8c993dc0a26fe7a9ee8b839d1964bd0debd4 (diff)
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Blackfin arch: print out error/warning if you are running on the incorrect CPU type
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/setup.c43
1 files changed, 27 insertions, 16 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 4267523..74370f3 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -813,17 +813,23 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Compiled for ADSP-%s Rev none\n", CPU);
else
printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
- if (bfin_revid() != bfin_compiled_revid()) {
- if (bfin_compiled_revid() == -1)
- printk(KERN_ERR "Warning: Compiled for Rev none, but running on Rev %d\n",
- bfin_revid());
- else if (bfin_compiled_revid() != 0xffff)
- printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
- bfin_compiled_revid(), bfin_revid());
+
+ if (unlikely(CPUID != bfin_cpuid()))
+ printk(KERN_ERR "ERROR: Not running on ADSP-%s: unknown CPUID 0x%04x Rev 0.%d\n",
+ CPU, bfin_cpuid(), bfin_revid());
+ else {
+ if (bfin_revid() != bfin_compiled_revid()) {
+ if (bfin_compiled_revid() == -1)
+ printk(KERN_ERR "Warning: Compiled for Rev none, but running on Rev %d\n",
+ bfin_revid());
+ else if (bfin_compiled_revid() != 0xffff)
+ printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
+ bfin_compiled_revid(), bfin_revid());
+ }
+ if (bfin_revid() <= CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
+ printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
+ CPU, bfin_revid());
}
- if (bfin_revid() <= CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
- printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
- CPU, bfin_revid());
printk(KERN_INFO "Blackfin Linux support by http://blackfin.uclinux.org/\n");
@@ -997,13 +1003,18 @@ static int show_cpuinfo(struct seq_file *m, void *v)
}
seq_printf(m, "processor\t: %d\n"
- "vendor_id\t: %s\n"
- "cpu family\t: 0x%x\n"
- "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n"
- "stepping\t: %d\n",
+ "vendor_id\t: %s\n",
*(unsigned int *)v,
- vendor,
- (bfin_read_CHIPID() & CHIPID_FAMILY),
+ vendor);
+
+ if (CPUID == bfin_cpuid())
+ seq_printf(m, "cpu family\t: 0x%04x\n", CPUID);
+ else
+ seq_printf(m, "cpu family\t: Compiled for:0x%04x, running on:0x%04x\n",
+ CPUID, bfin_cpuid());
+
+ seq_printf(m, "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n"
+ "stepping\t: %d\n",
cpu, cclk/1000000, sclk/1000000,
#ifdef CONFIG_MPU
"mpu on",