From ad11dbff741ffa6587f6f06a13872ffc3cc15846 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 4 Aug 2015 12:34:04 -0600 Subject: [PATCH] x86: Gracefully disable the vesa driver when running from EFI We cannot use this driver when running from EFI as we have no direct hardware access. In fact coreboot uses a different driver which uses tables provided by coreboot. So far it does not seem possible to use a normal video driver when booting from EFI. Signed-off-by: Simon Glass Acked-by: Anatolij Gustschin Reviewed-by: Bin Meng --- drivers/video/vesa_fb.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/video/vesa_fb.c b/drivers/video/vesa_fb.c index 909f8e8..4e6d070 100644 --- a/drivers/video/vesa_fb.c +++ b/drivers/video/vesa_fb.c @@ -24,6 +24,14 @@ void *video_hw_init(void) int ret; printf("Video: "); + if (!ll_boot_init()) { + /* + * If we are running from EFI or coreboot, this driver can't + * work. + */ + printf("Not available (previous bootloader prevents it)\n"); + return NULL; + } if (vbe_get_video_info(gdev)) { dev = pci_find_class(PCI_CLASS_DISPLAY_VGA << 8, 0); if (dev == -1) {