From e482cad241c0b7108cbc94959307a73d19ba17d5 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Fri, 10 Oct 2008 18:21:45 +0800 Subject: [PATCH] Blackfin arch: print out error/warning if you are running on the incorrect CPU type Signed-off-by: Robin Getz Signed-off-by: Bryan Wu --- arch/blackfin/include/asm/processor.h | 6 +++ arch/blackfin/kernel/setup.c | 43 ++++++++++++------- arch/blackfin/mach-bf527/include/mach/bf527.h | 19 +++++++- arch/blackfin/mach-bf533/include/mach/bf533.h | 10 ++--- arch/blackfin/mach-bf537/include/mach/bf537.h | 10 ++--- arch/blackfin/mach-bf548/include/mach/bf548.h | 23 +++++----- arch/blackfin/mach-bf561/include/mach/bf561.h | 6 +-- 7 files changed, 76 insertions(+), 41 deletions(-) diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 6f3995b119d8..e3e9b41fa8db 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -134,6 +134,12 @@ static inline uint32_t __pure bfin_revid(void) 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 4267523912bd..74370f3707b9 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", diff --git a/arch/blackfin/mach-bf527/include/mach/bf527.h b/arch/blackfin/mach-bf527/include/mach/bf527.h index 330041fde546..144f08d3f8ea 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 949801112303..dfc8c1ad2d7a 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 7a047e04e383..24d5c9d42323 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 14f8a7b84544..49f9b403d458 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 7787caad3555..18b1b3a223ab 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__ */ -- GitLab