diff options
Diffstat (limited to 'src/mainboard/emulation/qemu-armv7/mainboard.c')
| -rw-r--r-- | src/mainboard/emulation/qemu-armv7/mainboard.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-armv7/mainboard.c b/src/mainboard/emulation/qemu-armv7/mainboard.c index eced9ae3b9..c1fcc6ad59 100644 --- a/src/mainboard/emulation/qemu-armv7/mainboard.c +++ b/src/mainboard/emulation/qemu-armv7/mainboard.c @@ -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 = { |