[U-Boot] [PATCH 10/22] x86: Use cache, don't clear the display in video BIOS

[Simon Glass]

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 at chromium.org>
---

 arch/x86/lib/bios.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c
index d1f8933..4285348 100644
--- a/arch/x86/lib/bios.c
+++ b/arch/x86/lib/bios.c
@@ -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 */
-- 
2.2.0.rc0.207.ga3a616c