exynos4: universal_C210: add display support

This patch add support for display on Universal C210 board.
Width of displyed logo must be not bigger than 480 pixel and
is limited by width of the screen.
Tizen logo size is 520x120 pixels and should be resized.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

1 files changed, 166 insertions, 0 deletions

diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
index 4c1163e..afe3bb0 100644
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -24,6 +24,7 @@
 
 #include <common.h>
 #include <spi.h>
+#include <lcd.h>
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <asm/arch/adc.h>
@@ -35,6 +36,8 @@
 #include <asm/arch/cpu.h>
 #include <max8998_pmic.h>
 #include <asm/arch/watchdog.h>
+#include <libtizen.h>
+#include <ld9040.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -316,6 +319,168 @@ int universal_spi_read(void)
 }
 #endif
 
+static void init_pmic_lcd(void)
+{
+	unsigned char val;
+	int ret = 0;
+
+	struct pmic *p = get_pmic();
+
+	if (pmic_probe(p))
+		return;
+
+	/* LDO7 1.8V */
+	val = 0x02; /* (1800 - 1600) / 100; */
+	ret |= pmic_reg_write(p,  MAX8998_REG_LDO7, val);
+
+	/* LDO17 3.0V */
+	val = 0xe; /* (3000 - 1600) / 100; */
+	ret |= pmic_reg_write(p,  MAX8998_REG_LDO17, val);
+
+	/* Disable unneeded regulators */
+	/*
+	 * ONOFF1
+	 * Buck1 ON, Buck2 OFF, Buck3 ON, Buck4 ON
+	 * LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
+	 */
+	val = 0xB9;
+	ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF1, val);
+
+	/* ONOFF2
+	 * LDO6 OFF, LDO7 ON, LDO8 OFF, LDO9 ON,
+	 * LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
+	 */
+	val = 0x50;
+	ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF2, val);
+
+	/* ONOFF3
+	 * LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 OFF
+	 * EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
+	 */
+	val = 0x00;
+	ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF3, val);
+
+	if (ret)
+		puts("LCD pmic initialisation error!\n");
+}
+
+static void lcd_cfg_gpio(void)
+{
+	unsigned int i, f3_end = 4;
+
+	for (i = 0; i < 8; i++) {
+		/* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
+		s5p_gpio_cfg_pin(&gpio1->f0, i, GPIO_FUNC(2));
+		s5p_gpio_cfg_pin(&gpio1->f1, i, GPIO_FUNC(2));
+		s5p_gpio_cfg_pin(&gpio1->f2, i, GPIO_FUNC(2));
+		/* pull-up/down disable */
+		s5p_gpio_set_pull(&gpio1->f0, i, GPIO_PULL_NONE);
+		s5p_gpio_set_pull(&gpio1->f1, i, GPIO_PULL_NONE);
+		s5p_gpio_set_pull(&gpio1->f2, i, GPIO_PULL_NONE);
+
+		/* drive strength to max (24bit) */
+		s5p_gpio_set_drv(&gpio1->f0, i, GPIO_DRV_4X);
+		s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
+		s5p_gpio_set_drv(&gpio1->f1, i, GPIO_DRV_4X);
+		s5p_gpio_set_rate(&gpio1->f1, i, GPIO_DRV_SLOW);
+		s5p_gpio_set_drv(&gpio1->f2, i, GPIO_DRV_4X);
+		s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
+	}
+
+	for (i = 0; i < f3_end; i++) {
+		/* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
+		s5p_gpio_cfg_pin(&gpio1->f3, i, GPIO_FUNC(2));
+		/* pull-up/down disable */
+		s5p_gpio_set_pull(&gpio1->f3, i, GPIO_PULL_NONE);
+		/* drive strength to max (24bit) */
+		s5p_gpio_set_drv(&gpio1->f3, i, GPIO_DRV_4X);
+		s5p_gpio_set_rate(&gpio1->f3, i, GPIO_DRV_SLOW);
+	}
+
+	/* gpio pad configuration for LCD reset. */
+	s5p_gpio_cfg_pin(&gpio2->y4, 5, GPIO_OUTPUT);
+
+	spi_init();
+}
+
+static void reset_lcd(void)
+{
+	s5p_gpio_set_value(&gpio2->y4, 5, 1);
+	udelay(10000);
+	s5p_gpio_set_value(&gpio2->y4, 5, 0);
+	udelay(10000);
+	s5p_gpio_set_value(&gpio2->y4, 5, 1);
+	udelay(100);
+}
+
+static void lcd_power_on(void)
+{
+	struct pmic *p = get_pmic();
+
+	if (pmic_probe(p))
+		return;
+
+	pmic_set_output(p, MAX8998_REG_ONOFF3, MAX8998_LDO17, LDO_ON);
+	pmic_set_output(p, MAX8998_REG_ONOFF2, MAX8998_LDO7, LDO_ON);
+}
+
+vidinfo_t panel_info = {
+	.vl_freq	= 60,
+	.vl_col		= 480,
+	.vl_row		= 800,
+	.vl_width	= 480,
+	.vl_height	= 800,
+	.vl_clkp	= CONFIG_SYS_HIGH,
+	.vl_hsp		= CONFIG_SYS_HIGH,
+	.vl_vsp		= CONFIG_SYS_HIGH,
+	.vl_dp		= CONFIG_SYS_HIGH,
+
+	.vl_bpix	= 5,	/* Bits per pixel */
+
+	/* LD9040 LCD Panel */
+	.vl_hspw	= 2,
+	.vl_hbpd	= 16,
+	.vl_hfpd	= 16,
+
+	.vl_vspw	= 2,
+	.vl_vbpd	= 8,
+	.vl_vfpd	= 8,
+	.vl_cmd_allow_len = 0xf,
+
+	.win_id		= 0,
+	.cfg_gpio	= lcd_cfg_gpio,
+	.backlight_on	= NULL,
+	.lcd_power_on	= lcd_power_on,
+	.reset_lcd	= reset_lcd,
+	.dual_lcd_enabled = 0,
+
+	.init_delay	= 0,
+	.power_on_delay = 10000,
+	.reset_delay	= 10000,
+	.interface_mode = FIMD_RGB_INTERFACE,
+	.mipi_enabled	= 0,
+};
+
+void init_panel_info(vidinfo_t *vid)
+{
+	vid->logo_on	= 1;
+	vid->resolution	= HD_RESOLUTION;
+	vid->rgb_mode	= MODE_RGB_P;
+
+#ifdef CONFIG_TIZEN
+	get_tizen_logo_info(vid);
+#endif
+
+	/* for LD9040. */
+	vid->pclk_name = 1;	/* MPLL */
+	vid->sclk_div = 1;
+
+	vid->cfg_ldo = ld9040_cfg_ldo;
+	vid->enable_ldo = ld9040_enable_ldo;
+
+	setenv("lcdinfo", "lcd=ld9040");
+}
+
 int board_init(void)
 {
 	gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
@@ -326,6 +491,7 @@ int board_init(void)
 
 #if defined(CONFIG_PMIC)
 	pmic_init();
+	init_pmic_lcd();
 #endif
 #ifdef CONFIG_SOFT_SPI
 	soft_spi_init();