U-Boot clears the display when it starts up, so there is no need to ask the VESA driver to do this. Fix this and add a comment explaining the flags.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/lib/bios.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c index 5dfe5a647eb..de4578666fb 100644 --- a/arch/x86/lib/bios.c +++ b/arch/x86/lib/bios.c @@ -231,7 +231,11 @@ static void vbe_set_graphics(int vesa_mode, struct vesa_state *mode_info) { unsigned char *framebuffer;
- mode_info->video_mode = (1 << 14) | vesa_mode; + /* + * bit 14 is linear-framebuffer mode + * bit 15 means don't clear the display + */ + mode_info->video_mode = (1 << 14) | (1 << 15) | vesa_mode; vbe_get_mode_info(mode_info);
framebuffer = (unsigned char *)(ulong)mode_info->vesa.phys_base_ptr;