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[PATCH] powerpc: Make early debugging configurable via Kconfig

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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>
This commit is contained in:
Michael Ellerman
2006-01-11 11:54:09 +11:00
committed by Paul Mackerras
parent bf6a7112bd
commit 296167ae17
8 changed files with 88 additions and 43 deletions
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38
arch/powerpc/kernel/setup_64.c
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@@ -70,37 +70,6 @@
#define DBG(fmt...)
#endif
/*
* Here are some early debugging facilities. You can enable one
* but your kernel will not boot on anything else if you do so
*/
/* For use on LPAR machines that support an HVC console on vterm 0 */
extern void udbg_init_debug_lpar(void);
/* This one is for use on Apple G5 machines */
extern void udbg_init_pmac_realmode(void);
/* That's RTAS panel debug */
extern void call_rtas_display_status_delay(unsigned char c);
/* Here's maple real mode debug */
extern void udbg_init_maple_realmode(void);
/* For iSeries - hit Ctrl-x Ctrl-x to see the output */
extern void udbg_init_iseries(void);
#define EARLY_DEBUG_INIT() do {} while(0)
#if 0
#define EARLY_DEBUG_INIT() udbg_init_debug_lpar()
#define EARLY_DEBUG_INIT() udbg_init_iseries()
#define EARLY_DEBUG_INIT() udbg_init_maple_realmode()
#define EARLY_DEBUG_INIT() udbg_init_pmac_realmode()
#define EARLY_DEBUG_INIT() \
do { udbg_putc = call_rtas_display_status_delay; } while(0)
#endif
int have_of = 1;
int boot_cpuid = 0;
int boot_cpuid_phys = 0;
@@ -241,11 +210,8 @@ void __init early_setup(unsigned long dt_ptr)
struct paca_struct *lpaca = get_paca();
static struct machdep_calls **mach;
/*
* Enable early debugging if any specified (see top of
* this file)
*/
EARLY_DEBUG_INIT();
/* Enable early debugging if any specified (see udbg.h) */
udbg_early_init();
DBG(" -> early_setup()\n");