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x86: Use cache, don't clear the display in video BIOS

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There is no need to run with the cache disabled, and there is no point in
clearing the display frame buffer since U-Boot does it later.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-01-01 16:18:03 -07:00
parent d19ee5c27e
commit 818f602112
1 changed files with 2 additions and 3 deletions
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5
arch/x86/lib/bios.c
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@ -210,8 +210,8 @@ static u8 vbe_set_mode(struct vbe_mode_info *mi)
debug("VBE: Setting VESA mode %#04x\n", mi->video_mode);
/* request linear framebuffer mode */
mi->video_mode |= (1 << 14);
/* request clearing of framebuffer */
mi->video_mode &= ~(1 << 15);
/* don't clear the framebuffer, we do that later */
mi->video_mode |= (1 << 15);
realmode_interrupt(0x10, VESA_SET_MODE, mi->video_mode,
0x0000, 0x0000, 0x0000, 0x0000);
@ -262,7 +262,6 @@ void bios_run_on_x86(pci_dev_t pcidev, unsigned long addr, int vesa_mode,
/* Make sure the code is placed. */
setup_realmode_code();
disable_caches();
debug("Calling Option ROM at %lx, pci device %#x...", addr, num_dev);
/* Option ROM entry point is at OPROM start + 3 */