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video: Fix video on coreboot with the copy buffer

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The copy buffer, if enabled, prevents booting from coreboot correctly,
since no memory is allocated for it. Allow it to fall back to disabled
in this situation. This ensures that a console is displayed, even if
it is slow.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-03-15 18:00:26 +13:00
parent 907bcd3a33
commit bcac36185b
1 changed files with 2 additions and 5 deletions
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7
drivers/pci/pci_rom.c
View file

@ -349,13 +349,10 @@ int vbe_setup_video_priv(struct vesa_mode_info *vesa,
}
/* Use double buffering if enabled */
if (IS_ENABLED(CONFIG_VIDEO_COPY)) {
if (!plat->base)
return log_msg_ret("copy", -ENFILE);
if (IS_ENABLED(CONFIG_VIDEO_COPY) && plat->base)
plat->copy_base = vesa->phys_base_ptr;
} else {
else
plat->base = vesa->phys_base_ptr;
}
log_debug("base = %lx, copy_base = %lx\n", plat->base, plat->copy_base);
plat->size = vesa->bytes_per_scanline * vesa->y_resolution;