| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 Rockchip Inc. |
| * |
| * 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 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <arch/cache.h> |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <delay.h> |
| #include <edid.h> |
| #include <gpio.h> |
| #include <stdlib.h> |
| #include <stddef.h> |
| #include <string.h> |
| #include <soc/addressmap.h> |
| #include <soc/clock.h> |
| #include <soc/display.h> |
| #include <soc/edp.h> |
| #include <soc/gpio.h> |
| #include <soc/grf.h> |
| #include <soc/soc.h> |
| #include <soc/vop.h> |
| |
| #include "chip.h" |
| |
| void rk_display_init(device_t dev, u32 lcdbase, |
| unsigned long fb_size) |
| { |
| struct edid edid; |
| struct soc_rockchip_rk3288_config *conf = dev->chip_info; |
| uint32_t lower = ALIGN_DOWN(lcdbase, MiB); |
| uint32_t upper = ALIGN_UP(lcdbase + fb_size, MiB); |
| |
| printk(BIOS_SPEW, "LCD framebuffer @%p\n", (void *)(lcdbase)); |
| memset((void *)lcdbase, 0, fb_size); /* clear the framebuffer */ |
| dcache_clean_invalidate_by_mva((void *)lower, upper - lower); |
| mmu_config_range(lower / MiB, (upper - lower) / MiB, DCACHE_OFF); |
| |
| rkclk_configure_edp(); |
| |
| rkclk_configure_vop_aclk(conf->vop_id, 192 * MHz); |
| |
| rk_edp_init(conf->vop_id); |
| |
| if (rk_edp_get_edid(&edid)) { |
| printk(BIOS_WARNING, "can not get edid\n"); |
| return; |
| } |
| |
| if (rkclk_configure_vop_dclk(conf->vop_id, edid.pixel_clock * KHz)) { |
| printk(BIOS_WARNING, "config vop err\n"); |
| return; |
| } |
| |
| edid.framebuffer_bits_per_pixel = conf->framebuffer_bits_per_pixel; |
| edid.bytes_per_line = edid.ha * conf->framebuffer_bits_per_pixel / 8; |
| edid.x_resolution = edid.ha; |
| edid.y_resolution = edid.va; |
| rkvop_mode_set(conf->vop_id, &edid); |
| |
| rkvop_enable(conf->vop_id, lcdbase, &edid); |
| |
| if (rk_edp_enable()) { |
| printk(BIOS_WARNING, "edp enable err\n"); |
| return; |
| } |
| |
| set_vbe_mode_info_valid(&edid, (uintptr_t)lcdbase); |
| mainboard_power_on_backlight(); |
| } |