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vexpress: add gfx init 

Change-Id: I0eff29b74d7df331dcbf2c25799eaae4911e54fc
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13749
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Vladimir Serbinenko 2016-02-19 15:21:49 +01:00
parent fe6052c2e4
commit 2a59a44416
2 changed files with 31 additions and 0 deletions
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2
src/mainboard/emulation/qemu-armv7/Kconfig
View File

@ -27,6 +27,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select DRIVERS_UART_PL011
select BOOTBLOCK_CONSOLE
select CONSOLE_SERIAL
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_DO_NATIVE_VGA_INIT
select ARCH_BOOTBLOCK_ARMV7
select ARCH_ROMSTAGE_ARMV7
select ARCH_RAMSTAGE_ARMV7

29
src/mainboard/emulation/qemu-armv7/mainboard.c
View File

@ -20,6 +20,34 @@
#include <string.h>
#include <halt.h>
#include "mainboard.h"
#include <edid.h>
static void init_gfx(void)
{
volatile uint32_t *pl111;
struct edid edid;
/* width is at most 4096 */
/* height is at most 1024 */
int width = 800, height = 600;
uint32_t framebuffer = 0x4c000000;
pl111 = (uint32_t *) 0x10020000;
pl111[0] = (width / 4) - 4;
pl111[1] = height - 1;
/* registers 2, 3 and 5 are ignored by qemu. Set them correctly if
we ever go for real hw. */
/* framebuffer adress offset. Has to be in vram. */
pl111[4] = framebuffer;
pl111[7] = 0;
pl111[10] = 0xff;
pl111[6] = (5 << 1) | 0x801;
edid.framebuffer_bits_per_pixel = 32;
edid.bytes_per_line = width * 4;
edid.x_resolution = width;
edid.y_resolution = height;
set_vbe_mode_info_valid(&edid, framebuffer);
}
static void mainboard_enable(device_t dev)
{
@ -33,6 +61,7 @@ static void mainboard_enable(device_t dev)
printk(BIOS_DEBUG, "%d MiB of RAM discovered\n", discovered);
ram_resource(dev, 0, 0x60000000 >> 10, discovered << 10);
cbmem_recovery(0);
init_gfx();
}
struct chip_operations mainboard_ops = {