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| author | Michael Ellerman <michael@ellerman.id.au> | 2006-01-11 11:54:09 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-11 14:48:26 +1100 |
| commit | 296167ae1799815b9ed2d135a847436502f2ee91 (patch) | |
| tree | 5e9496d0a60e10a021c12117ec6bc8d513f39463 /arch/powerpc/kernel/udbg.c | |
| parent | bf6a7112bda99aadd6675526423a96be6b356a3d (diff) | |
| download | blackbird-op-linux-296167ae1799815b9ed2d135a847436502f2ee91.tar.gz blackbird-op-linux-296167ae1799815b9ed2d135a847436502f2ee91.zip | |
[PATCH] powerpc: Make early debugging configurable via Kconfig
This patch adds Kconfig entries to control the early debugging options,
currently in setup_64.c.
Doing this via Kconfig rather than #defines means you can have one source tree,
which is buildable for multiple platforms - and you can enable the correct
early debug option for each platform via .config.
I made udbg_early_init() a static inline because otherwise GCC is to daft to
optimise it away when debugging is off.
Now that we have udbg_init_rtas() we can make call_rtas_display_status* static.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/udbg.c')
| -rw-r--r-- | arch/powerpc/kernel/udbg.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c index 558c1ceb2b93..3774e80094f5 100644 --- a/arch/powerpc/kernel/udbg.c +++ b/arch/powerpc/kernel/udbg.c @@ -15,11 +15,36 @@ #include <linux/sched.h> #include <linux/console.h> #include <asm/processor.h> +#include <asm/udbg.h> void (*udbg_putc)(char c); int (*udbg_getc)(void); int (*udbg_getc_poll)(void); +/* + * Early debugging facilities. You can enable _one_ of these via .config, + * if you do so your kernel _will not boot_ on anything else. Be careful. + */ +void __init udbg_early_init(void) +{ +#if defined(CONFIG_PPC_EARLY_DEBUG_LPAR) + /* For LPAR machines that have an HVC console on vterm 0 */ + udbg_init_debug_lpar(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_G5) + /* For use on Apple G5 machines */ + udbg_init_pmac_realmode(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_RTAS) + /* RTAS panel debug */ + udbg_init_rtas(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_MAPLE) + /* Maple real mode debug */ + udbg_init_maple_realmode(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_ISERIES) + /* For iSeries - hit Ctrl-x Ctrl-x to see the output */ + udbg_init_iseries(); +#endif +} + /* udbg library, used by xmon et al */ void udbg_puts(const char *s) { |
