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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/sh/include/asm/bugs.h
Initial import
Diffstat (limited to 'arch/sh/include/asm/bugs.h')
-rw-r--r--arch/sh/include/asm/bugs.h77
1 files changed, 77 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..02a19a1c0
--- /dev/null
+++ b/arch/sh/include/asm/bugs.h
@@ -0,0 +1,77 @@
+#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(&current_cpu_data));
+
+#ifndef __LITTLE_ENDIAN__
+ /* 'eb' means 'Endian Big' */
+ *p++ = 'e';
+ *p++ = 'b';
+#endif
+ *p = '\0';
+}
+#endif /* __ASM_SH_BUGS_H */