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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-23 17:57:25 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 14:49:54 +1100
commit51d3082fe6e55aecfa17113dbe98077c749f724c (patch)
tree9a1e2355d5988d8cc1ca511d53c1bb24b0baa17f /arch/powerpc/kernel/udbg.c
parent463ce0e103f419f51b1769111e73fe8bb305d0ec (diff)
[PATCH] powerpc: Unify udbg (#2)
This patch unifies udbg for both ppc32 and ppc64 when building the merged achitecture. xmon now has a single "back end". The powermac udbg stuff gets enriched with some ADB capabilities and btext output. In addition, the early_init callback is now called on ppc32 as well, approx. in the same order as ppc64 regarding device-tree manipulations. The init sequences of ppc32 and ppc64 are getting closer, I'll unify them in a later patch. For now, you can force udbg to the scc using "sccdbg" or to btext using "btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg output to something else than the autodetected OF output device in a later patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/udbg.c')
-rw-r--r--arch/powerpc/kernel/udbg.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index 2e372477d22a..cc2df5e61bb0 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -16,8 +16,8 @@
#include <linux/console.h>
#include <asm/processor.h>
-void (*udbg_putc)(unsigned char c);
-unsigned char (*udbg_getc)(void);
+void (*udbg_putc)(char c);
+char (*udbg_getc)(void);
int (*udbg_getc_poll)(void);
/* udbg library, used by xmon et al */
@@ -78,7 +78,7 @@ int udbg_read(char *buf, int buflen)
#define UDBG_BUFSIZE 256
void udbg_printf(const char *fmt, ...)
{
- unsigned char buf[UDBG_BUFSIZE];
+ char buf[UDBG_BUFSIZE];
va_list args;
va_start(args, fmt);
@@ -116,6 +116,8 @@ void __init disable_early_printk(void)
/* called by setup_system */
void register_early_udbg_console(void)
{
+ if (early_console_initialized)
+ return;
early_console_initialized = 1;
register_console(&udbg_console);
}