| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2016 Vladimir Serbinenko <phcoder@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 or, at your option, any later |
| * version of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <cbmem.h> |
| #include <string.h> |
| #include <halt.h> |
| #include "mainboard.h" |
| #include <edid.h> |
| #include <arch/io.h> |
| |
| static void init_gfx(void) |
| { |
| 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; |
| write32(pl111, (width / 4) - 4); |
| write32(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. */ |
| write32(pl111 + 4, framebuffer); |
| write32(pl111 + 7, 0); |
| write32(pl111 + 10, 0xff); |
| write32(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) |
| { |
| int discovered; |
| if (!dev) { |
| printk(BIOS_EMERG, "No dev0; die\n"); |
| halt(); |
| } |
| |
| discovered = probe_ramsize(); |
| 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 = { |
| .enable_dev = mainboard_enable, |
| }; |