x86: Avoid clearing the VESA display
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>
diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c
index 5dfe5a6..de45786 100644
--- a/arch/x86/lib/bios.c
+++ b/arch/x86/lib/bios.c
@@ -231,7 +231,11 @@
{
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;