diff options
author | Simon Glass <sjg@chromium.org> | 2013-04-17 16:13:34 +0000 |
---|---|---|
committer | Simon Glass <sjg@chromium.org> | 2013-05-13 13:33:20 -0700 |
commit | c78a62acdfbc0a1cc75ee934f7897b9e99bd3e8d (patch) | |
tree | 16420e7fc6498f05676977beeca8dab55d656e73 /arch/x86/cpu/coreboot/coreboot.c | |
parent | 7282d834cd47cabc481a5cbe6e686ef40751436f (diff) |
x86: Implement panic output for coreboot
panic_puts() can be called in early boot to display a message. It might
help with early debugging.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Diffstat (limited to 'arch/x86/cpu/coreboot/coreboot.c')
-rw-r--r-- | arch/x86/cpu/coreboot/coreboot.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/cpu/coreboot/coreboot.c b/arch/x86/cpu/coreboot/coreboot.c index f8e28f0c829..4a7dae49365 100644 --- a/arch/x86/cpu/coreboot/coreboot.c +++ b/arch/x86/cpu/coreboot/coreboot.c @@ -26,6 +26,7 @@ #include <asm/u-boot-x86.h> #include <flash.h> #include <netdev.h> +#include <ns16550.h> #include <asm/msr.h> #include <asm/cache.h> #include <asm/io.h> @@ -135,3 +136,12 @@ int board_final_cleanup(void) return 0; } + +void panic_puts(const char *str) +{ + NS16550_t port = (NS16550_t)0x3f8; + + NS16550_init(port, 1); + while (*str) + NS16550_putc(port, *str++); +} |