aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/rtas.c
diff options
context:
space:
mode:
authorMichael Ellerman <michael@ellerman.id.au>2006-01-11 11:54:09 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-11 14:48:26 +1100
commit296167ae1799815b9ed2d135a847436502f2ee91 (patch)
tree5e9496d0a60e10a021c12117ec6bc8d513f39463 /arch/powerpc/kernel/rtas.c
parentbf6a7112bda99aadd6675526423a96be6b356a3d (diff)
[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/rtas.c')
-rw-r--r--arch/powerpc/kernel/rtas.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index ae2e2a31a70..68bcd2824bc 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -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;