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>
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index 6f3995b..e3e9b41 100644
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -134,6 +134,12 @@
return revid;
}
+static inline uint16_t __pure bfin_cpuid(void)
+{
+ return (bfin_read_CHIPID() & CHIPID_FAMILY) >> 12;
+
+}
+
static inline uint32_t __pure bfin_compiled_revid(void)
{
#if defined(CONFIG_BF_REV_0_0)
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 @@
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 @@
}
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",
diff --git a/arch/blackfin/mach-bf527/include/mach/bf527.h b/arch/blackfin/mach-bf527/include/mach/bf527.h
index 330041f..144f08d 100644
--- a/arch/blackfin/mach-bf527/include/mach/bf527.h
+++ b/arch/blackfin/mach-bf527/include/mach/bf527.h
@@ -110,16 +110,31 @@
#ifdef CONFIG_BF527
#define CPU "BF527"
+#define CPUID 0x27e4
+#endif
+#ifdef CONFIG_BF526
+#define CPU "BF526"
+#define CPUID 0x27e4
#endif
#ifdef CONFIG_BF525
#define CPU "BF525"
+#define CPUID 0x27e4
+#endif
+#ifdef CONFIG_BF524
+#define CPU "BF524"
+#define CPUID 0x27e4
+#endif
+#ifdef CONFIG_BF523
+#define CPU "BF523"
+#define CPUID 0x27e4
#endif
#ifdef CONFIG_BF522
#define CPU "BF522"
+#define CPUID 0x27e4
#endif
+
#ifndef CPU
-#define CPU "UNKNOWN"
-#define CPUID 0x0
+#error Unknown CPU type - This kernel doesn't seem to be configured properly
#endif
#endif /* __MACH_BF527_H__ */
diff --git a/arch/blackfin/mach-bf533/include/mach/bf533.h b/arch/blackfin/mach-bf533/include/mach/bf533.h
index 9498011..dfc8c1a 100644
--- a/arch/blackfin/mach-bf533/include/mach/bf533.h
+++ b/arch/blackfin/mach-bf533/include/mach/bf533.h
@@ -141,19 +141,19 @@
#ifdef CONFIG_BF533
#define CPU "BF533"
-#define CPUID 0x027a5000
+#define CPUID 0x27a5
#endif
#ifdef CONFIG_BF532
#define CPU "BF532"
-#define CPUID 0x0275A000
+#define CPUID 0x275A
#endif
#ifdef CONFIG_BF531
#define CPU "BF531"
-#define CPUID 0x027a5000
+#define CPUID 0x27a5
#endif
+
#ifndef CPU
-#define CPU "UNKNOWN"
-#define CPUID 0x0
+#error Unknown CPU type - This kernel doesn't seem to be configured properly
#endif
#endif /* __MACH_BF533_H__ */
diff --git a/arch/blackfin/mach-bf537/include/mach/bf537.h b/arch/blackfin/mach-bf537/include/mach/bf537.h
index 7a047e0..24d5c9d 100644
--- a/arch/blackfin/mach-bf537/include/mach/bf537.h
+++ b/arch/blackfin/mach-bf537/include/mach/bf537.h
@@ -121,19 +121,19 @@
#ifdef CONFIG_BF537
#define CPU "BF537"
-#define CPUID 0x027c8000
+#define CPUID 0x27c8
#endif
#ifdef CONFIG_BF536
#define CPU "BF536"
-#define CPUID 0x027c8000
+#define CPUID 0x27c8
#endif
#ifdef CONFIG_BF534
#define CPU "BF534"
-#define CPUID 0x027c6000
+#define CPUID 0x27c6
#endif
+
#ifndef CPU
-#define CPU "UNKNOWN"
-#define CPUID 0x0
+#error Unknown CPU type - This kernel doesn't seem to be configured properly
#endif
#endif /* __MACH_BF537_H__ */
diff --git a/arch/blackfin/mach-bf548/include/mach/bf548.h b/arch/blackfin/mach-bf548/include/mach/bf548.h
index 14f8a7b..49f9b40 100644
--- a/arch/blackfin/mach-bf548/include/mach/bf548.h
+++ b/arch/blackfin/mach-bf548/include/mach/bf548.h
@@ -106,20 +106,23 @@
#if defined(CONFIG_BF542)
# define CPU "BF542"
-# define CPUID 0x027c8000
+# define CPUID 0x27de
#elif defined(CONFIG_BF544)
-# define CPU "BF544"
-# define CPUID 0x027c8000
+# define CPU "BF544"
+# define CPUID 0x27de
#elif defined(CONFIG_BF547)
-# define CPU "BF547"
+# define CPU "BF547"
+# define CPUID 0x27de
#elif defined(CONFIG_BF548)
-# define CPU "BF548"
-# define CPUID 0x027c6000
+# define CPU "BF548"
+# define CPUID 0x27de
#elif defined(CONFIG_BF549)
-# define CPU "BF549"
-#else
-# define CPU "UNKNOWN"
-# define CPUID 0x0
+# define CPU "BF549"
+# define CPUID 0x27de
+#endif
+
+#ifndef CPU
+#error Unknown CPU type - This kernel doesn't seem to be configured properly
#endif
#endif /* __MACH_BF48_H__ */
diff --git a/arch/blackfin/mach-bf561/include/mach/bf561.h b/arch/blackfin/mach-bf561/include/mach/bf561.h
index 7787caa..18b1b3a 100644
--- a/arch/blackfin/mach-bf561/include/mach/bf561.h
+++ b/arch/blackfin/mach-bf561/include/mach/bf561.h
@@ -211,11 +211,11 @@
#ifdef CONFIG_BF561
#define CPU "BF561"
-#define CPUID 0x027bb000
+#define CPUID 0x27bb
#endif
+
#ifndef CPU
-#define CPU "UNKNOWN"
-#define CPUID 0x0
+#error Unknown CPU type - This kernel doesn't seem to be configured properly
#endif
#endif /* __MACH_BF561_H__ */