[coreboot-gerrit] Patch set updated for coreboot: vexpress: add gfx init
Vladimir Serbinenko (phcoder@gmail.com)
gerrit at coreboot.org
Sun Feb 21 15:07:39 CET 2016
Vladimir Serbinenko (phcoder at gmail.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13749
-gerrit
commit b6526f3e2add57150a9cf6b3c9c144d9ab510563
Author: Vladimir Serbinenko <phcoder at gmail.com>
Date: Fri Feb 19 15:21:49 2016 +0100
vexpress: add gfx init
Change-Id: I0eff29b74d7df331dcbf2c25799eaae4911e54fc
Signed-off-by: Vladimir Serbinenko <phcoder at gmail.com>
---
src/mainboard/emulation/qemu-armv7/Kconfig | 2 ++
src/mainboard/emulation/qemu-armv7/mainboard.c | 29 ++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/src/mainboard/emulation/qemu-armv7/Kconfig b/src/mainboard/emulation/qemu-armv7/Kconfig
index f30dcd1..d6393e5 100644
--- a/src/mainboard/emulation/qemu-armv7/Kconfig
+++ b/src/mainboard/emulation/qemu-armv7/Kconfig
@@ -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
diff --git a/src/mainboard/emulation/qemu-armv7/mainboard.c b/src/mainboard/emulation/qemu-armv7/mainboard.c
index a5ae0d0..7dcdf91 100644
--- a/src/mainboard/emulation/qemu-armv7/mainboard.c
+++ b/src/mainboard/emulation/qemu-armv7/mainboard.c
@@ -19,6 +19,34 @@
#include <cbmem.h>
#include <string.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)
{
@@ -32,6 +60,7 @@ 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 = {
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