diff options
Diffstat (limited to 'arch/sh/include/asm/bugs.h')
| -rw-r--r-- | arch/sh/include/asm/bugs.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/sh/include/asm/bugs.h b/arch/sh/include/asm/bugs.h new file mode 100644 index 000000000..030df56bf --- /dev/null +++ b/arch/sh/include/asm/bugs.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SH_BUGS_H +#define __ASM_SH_BUGS_H + +/* + * This is included by init/main.c to check for architecture-dependent bugs. + * + * Needs: + * void check_bugs(void); + */ + +/* + * I don't know of any Super-H bugs yet. + */ + +#include <asm/processor.h> + +extern void select_idle_routine(void); + +static void __init check_bugs(void) +{ + extern unsigned long loops_per_jiffy; + char *p = &init_utsname()->machine[2]; /* "sh" */ + + select_idle_routine(); + + current_cpu_data.loops_per_jiffy = loops_per_jiffy; + + switch (current_cpu_data.family) { + case CPU_FAMILY_SH2: + *p++ = '2'; + break; + case CPU_FAMILY_SH2A: + *p++ = '2'; + *p++ = 'a'; + break; + case CPU_FAMILY_SH3: + *p++ = '3'; + break; + case CPU_FAMILY_SH4: + *p++ = '4'; + break; + case CPU_FAMILY_SH4A: + *p++ = '4'; + *p++ = 'a'; + break; + case CPU_FAMILY_SH4AL_DSP: + *p++ = '4'; + *p++ = 'a'; + *p++ = 'l'; + *p++ = '-'; + *p++ = 'd'; + *p++ = 's'; + *p++ = 'p'; + break; + case CPU_FAMILY_SH5: + *p++ = '6'; + *p++ = '4'; + break; + case CPU_FAMILY_UNKNOWN: + /* + * Specifically use CPU_FAMILY_UNKNOWN rather than + * default:, so we're able to have the compiler whine + * about unhandled enumerations. + */ + break; + } + + printk("CPU: %s\n", get_cpu_subtype(¤t_cpu_data)); + +#ifndef __LITTLE_ENDIAN__ + /* 'eb' means 'Endian Big' */ + *p++ = 'e'; + *p++ = 'b'; +#endif + *p = '\0'; +} +#endif /* __ASM_SH_BUGS_H */ |