1 files changed, 89 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3288/display.c b/src/soc/rockchip/rk3288/display.c
new file mode 100644
index 0000000000..a8ba31a129
--- /dev/null
+++ b/src/soc/rockchip/rk3288/display.c
@@ -0,0 +1,89 @@
+/*
+ * 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);
+	udelay(conf->lcd_power_on_udelay);
+
+	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);
+	gpio_output(conf->lcd_bl_pwm_gpio, 0);
+	gpio_output(conf->lcd_bl_en_gpio, 1); /* LCD_BL */
+	udelay(conf->bl_power_on_udelay);
+	gpio_output(conf->lcd_bl_pwm_gpio, 1); /* BL_EN */
+}