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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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12
arch/powerpc/kernel/rtas.c
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@ -29,6 +29,7 @@
#include <asm/delay.h>
#include <asm/uaccess.h>
#include <asm/lmb.h>
#include <asm/udbg.h>
struct rtas_t rtas = {
.lock = SPIN_LOCK_UNLOCKED
@ -52,7 +53,7 @@ EXPORT_SYMBOL(rtas_flash_term_hook);
* are designed only for very early low-level debugging, which
* is why the token is hard-coded to 10.
*/
void call_rtas_display_status(unsigned char c)
static void call_rtas_display_status(char c)
{
struct rtas_args *args = &rtas.args;
unsigned long s;
@ -65,14 +66,14 @@ void call_rtas_display_status(unsigned char c)
args->nargs = 1;
args->nret = 1;
args->rets = (rtas_arg_t *)&(args->args[1]);
args->args[0] = (int)c;
args->args[0] = (unsigned char)c;
enter_rtas(__pa(args));
spin_unlock_irqrestore(&rtas.lock, s);
}
void call_rtas_display_status_delay(unsigned char c)
static void call_rtas_display_status_delay(char c)
{
static int pending_newline = 0; /* did last write end with unprinted newline? */
static int width = 16;
@ -96,6 +97,11 @@ void call_rtas_display_status_delay(unsigned char c)
}
}
void __init udbg_init_rtas(void)
{
udbg_putc = call_rtas_display_status_delay;
}
void rtas_progress(char *s, unsigned short hex)
{
struct device_node *root;