From: Duncan Laurie dlaurie@chromium.org
This command will start erasing at memory address zero if there is not a valid framebuffer address that was found during video_init().
This is a common case with Chrome OS devices in normal mode when we do not execute the video option rom in coreboot.
Signed-off-by: Duncan Laurie dlaurie@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- drivers/video/cfb_console.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c index c8d3e42..2b1f604 100644 --- a/drivers/video/cfb_console.c +++ b/drivers/video/cfb_console.c @@ -1976,6 +1976,7 @@ int video_get_screen_columns(void)
void video_clear(void) { - memsetl(video_fb_address, - (VIDEO_VISIBLE_ROWS * VIDEO_LINE_LEN) / sizeof(int), 0); + if (video_fb_address) + memsetl(video_fb_address, + (VIDEO_VISIBLE_ROWS * VIDEO_LINE_LEN) / sizeof(int), 0); }