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x86: Gracefully disable the vesa driver when running from EFI

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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 <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-08-04 12:34:04 -06:00
parent eeae510007
commit ad11dbff74
1 changed files with 8 additions and 0 deletions
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8
drivers/video/vesa_fb.c
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@ -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) {