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-rw-r--r--arch/arm/include/asm/arch-exynos/system.h3
-rw-r--r--board/samsung/smdk5420/smdk5420.c129
2 files changed, 50 insertions, 82 deletions
diff --git a/arch/arm/include/asm/arch-exynos/system.h b/arch/arm/include/asm/arch-exynos/system.h
index 4968d3d..320763f 100644
--- a/arch/arm/include/asm/arch-exynos/system.h
+++ b/arch/arm/include/asm/arch-exynos/system.h
@@ -41,4 +41,7 @@ void set_usbhost_mode(unsigned int mode);
void set_system_display_ctrl(void);
int exynos_lcd_early_init(const void *blob);
+/* Initialize the Parade dP<->LVDS bridge if present */
+int parade_init(const void *blob);
+
#endif /* _EXYNOS4_SYSTEM_H */
diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c
index 183c522..270ee83 100644
--- a/board/samsung/smdk5420/smdk5420.c
+++ b/board/samsung/smdk5420/smdk5420.c
@@ -10,11 +10,14 @@
#include <i2c.h>
#include <lcd.h>
#include <spi.h>
+#include <errno.h>
#include <asm/arch/board.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
+#include <asm/arch/system.h>
#include <asm/arch/dp_info.h>
+#include <power/tps65090_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -40,95 +43,57 @@ int exynos_init(void)
}
#ifdef CONFIG_LCD
-void cfg_lcd_gpio(void)
+static int has_edp_bridge(void)
{
- /* For Backlight */
- gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_OUTPUT);
- gpio_set_value(EXYNOS5420_GPIO_B20, 1);
+ int node;
+
+ node = fdtdec_next_compatible(gd->fdt_blob, 0, COMPAT_PARADE_PS8625);
- /* LCD power on */
- gpio_cfg_pin(EXYNOS5420_GPIO_X15, S5P_GPIO_OUTPUT);
- gpio_set_value(EXYNOS5420_GPIO_X15, 1);
+ /* No node for bridge in device tree. */
+ if (node <= 0)
+ return 0;
- /* Set Hotplug detect for DP */
- gpio_cfg_pin(EXYNOS5420_GPIO_X07, S5P_GPIO_FUNC(0x3));
+ /* Default is with bridge ic */
+ return 1;
}
-vidinfo_t panel_info = {
- .vl_freq = 60,
- .vl_col = 2560,
- .vl_row = 1600,
- .vl_width = 2560,
- .vl_height = 1600,
- .vl_clkp = CONFIG_SYS_LOW,
- .vl_hsp = CONFIG_SYS_LOW,
- .vl_vsp = CONFIG_SYS_LOW,
- .vl_dp = CONFIG_SYS_LOW,
- .vl_bpix = 4, /* LCD_BPP = 2^4, for output conosle on LCD */
-
- /* wDP panel timing infomation */
- .vl_hspw = 32,
- .vl_hbpd = 80,
- .vl_hfpd = 48,
-
- .vl_vspw = 6,
- .vl_vbpd = 37,
- .vl_vfpd = 3,
- .vl_cmd_allow_len = 0xf,
-
- .win_id = 3,
- .cfg_gpio = cfg_lcd_gpio,
- .backlight_on = NULL,
- .lcd_power_on = NULL,
- .reset_lcd = NULL,
- .dual_lcd_enabled = 0,
-
- .init_delay = 0,
- .power_on_delay = 0,
- .reset_delay = 0,
- .interface_mode = FIMD_RGB_INTERFACE,
- .dp_enabled = 1,
-};
-
-static struct edp_device_info edp_info = {
- .disp_info = {
- .h_res = 2560,
- .h_sync_width = 32,
- .h_back_porch = 80,
- .h_front_porch = 48,
- .v_res = 1600,
- .v_sync_width = 6,
- .v_back_porch = 37,
- .v_front_porch = 3,
- .v_sync_rate = 60,
- },
- .lt_info = {
- .lt_status = DP_LT_NONE,
- },
- .video_info = {
- .master_mode = 0,
- .bist_mode = DP_DISABLE,
- .bist_pattern = NO_PATTERN,
- .h_sync_polarity = 0,
- .v_sync_polarity = 0,
- .interlaced = 0,
- .color_space = COLOR_RGB,
- .dynamic_range = VESA,
- .ycbcr_coeff = COLOR_YCBCR601,
- .color_depth = COLOR_8,
- },
-};
-
-static struct exynos_dp_platform_data dp_platform_data = {
- .phy_enable = set_dp_phy_ctrl,
- .edp_dev_info = &edp_info,
-};
-
-void init_panel_info(vidinfo_t *vid)
+void exynos_lcd_power_on(void)
{
- vid->rgb_mode = MODE_RGB_P;
+ int ret;
+
+#ifdef CONFIG_POWER_TPS65090
+ ret = tps65090_init();
+ if (ret < 0) {
+ printf("%s: tps65090_init() failed\n", __func__);
+ return;
+ }
+
+ tps65090_fet_enable(6);
+#endif
+
+ mdelay(5);
+
+ /* TODO(ajaykumar.rs@samsung.com): Use device tree */
+ gpio_direction_output(EXYNOS5420_GPIO_X35, 1); /* EDP_SLP# */
+ mdelay(10);
+ gpio_direction_output(EXYNOS5420_GPIO_Y77, 1); /* EDP_RST# */
+ gpio_direction_input(EXYNOS5420_GPIO_X26); /* EDP_HPD */
+ gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
- exynos_set_dp_platform_data(&dp_platform_data);
+ if (has_edp_bridge())
+ if (parade_init(gd->fdt_blob))
+ printf("%s: ps8625_init() failed\n", __func__);
+}
+
+void exynos_backlight_on(unsigned int onoff)
+{
+ /* For PWM */
+ gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(0x1));
+ gpio_set_value(EXYNOS5420_GPIO_B20, 1);
+
+#ifdef CONFIG_POWER_TPS65090
+ tps65090_fet_enable(1);
+#endif
}
#endif