mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-15 15:53:26 +08:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/*
|
|
* coreboot Framebuffer driver.
|
|
*
|
|
* Copyright (C) 2011 The Chromium OS authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/arch/tables.h>
|
|
#include <asm/arch/sysinfo.h>
|
|
#include <video_fb.h>
|
|
#include "videomodes.h"
|
|
|
|
/*
|
|
* The Graphic Device
|
|
*/
|
|
GraphicDevice ctfb;
|
|
|
|
static int parse_coreboot_table_fb(GraphicDevice *gdev)
|
|
{
|
|
struct cb_framebuffer *fb = lib_sysinfo.framebuffer;
|
|
|
|
/* If there is no framebuffer structure, bail out and keep
|
|
* running on the serial console.
|
|
*/
|
|
if (!fb)
|
|
return 0;
|
|
|
|
gdev->winSizeX = fb->x_resolution;
|
|
gdev->winSizeY = fb->y_resolution;
|
|
|
|
gdev->plnSizeX = fb->x_resolution;
|
|
gdev->plnSizeY = fb->y_resolution;
|
|
|
|
gdev->gdfBytesPP = fb->bits_per_pixel / 8;
|
|
|
|
switch (fb->bits_per_pixel) {
|
|
case 24:
|
|
gdev->gdfIndex = GDF_32BIT_X888RGB;
|
|
break;
|
|
case 16:
|
|
gdev->gdfIndex = GDF_16BIT_565RGB;
|
|
break;
|
|
default:
|
|
gdev->gdfIndex = GDF__8BIT_INDEX;
|
|
break;
|
|
}
|
|
|
|
gdev->isaBase = CONFIG_SYS_ISA_IO_BASE_ADDRESS;
|
|
gdev->pciBase = (unsigned int)fb->physical_address;
|
|
|
|
gdev->frameAdrs = (unsigned int)fb->physical_address;
|
|
gdev->memSize = fb->bytes_per_line * fb->y_resolution;
|
|
|
|
gdev->vprBase = (unsigned int)fb->physical_address;
|
|
gdev->cprBase = (unsigned int)fb->physical_address;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void *video_hw_init(void)
|
|
{
|
|
GraphicDevice *gdev = &ctfb;
|
|
int bits_per_pixel;
|
|
|
|
printf("Video: ");
|
|
|
|
if (!parse_coreboot_table_fb(gdev)) {
|
|
printf("No video mode configured in coreboot!\n");
|
|
return NULL;
|
|
}
|
|
|
|
bits_per_pixel = gdev->gdfBytesPP * 8;
|
|
|
|
/* fill in Graphic device struct */
|
|
sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
|
|
bits_per_pixel);
|
|
printf("%s\n", gdev->modeIdent);
|
|
|
|
memset((void *)gdev->pciBase, 0,
|
|
gdev->winSizeX * gdev->winSizeY * gdev->gdfBytesPP);
|
|
|
|
return (void *)gdev;
|
|
}
|