108a7aa1eSSimon Glass /* 208a7aa1eSSimon Glass * Copyright (C) 2012 Samsung Electronics 308a7aa1eSSimon Glass * 408a7aa1eSSimon Glass * Author: InKi Dae <inki.dae@samsung.com> 508a7aa1eSSimon Glass * Author: Donghwa Lee <dh09.lee@samsung.com> 608a7aa1eSSimon Glass * 708a7aa1eSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 808a7aa1eSSimon Glass */ 908a7aa1eSSimon Glass 1008a7aa1eSSimon Glass #include <config.h> 1108a7aa1eSSimon Glass #include <common.h> 1208a7aa1eSSimon Glass #include <lcd.h> 1308a7aa1eSSimon Glass #include <fdtdec.h> 1408a7aa1eSSimon Glass #include <libfdt.h> 1508a7aa1eSSimon Glass #include <asm/io.h> 1608a7aa1eSSimon Glass #include <asm/arch/cpu.h> 1708a7aa1eSSimon Glass #include <asm/arch/clock.h> 1808a7aa1eSSimon Glass #include <asm/arch/clk.h> 1908a7aa1eSSimon Glass #include <asm/arch/mipi_dsim.h> 2008a7aa1eSSimon Glass #include <asm/arch/dp_info.h> 2108a7aa1eSSimon Glass #include <asm/arch/system.h> 2208a7aa1eSSimon Glass #include <asm/gpio.h> 2308a7aa1eSSimon Glass #include <asm-generic/errno.h> 2408a7aa1eSSimon Glass 2508a7aa1eSSimon Glass #include "exynos_fb.h" 2608a7aa1eSSimon Glass 2708a7aa1eSSimon Glass DECLARE_GLOBAL_DATA_PTR; 2808a7aa1eSSimon Glass 2908a7aa1eSSimon Glass static unsigned int panel_width, panel_height; 3008a7aa1eSSimon Glass 31*aaca5b19SSimon Glass struct vidinfo panel_info = { 3208a7aa1eSSimon Glass /* 3308a7aa1eSSimon Glass * Insert a value here so that we don't end up in the BSS 3408a7aa1eSSimon Glass * Reference: drivers/video/tegra.c 3508a7aa1eSSimon Glass */ 3608a7aa1eSSimon Glass .vl_col = -1, 3708a7aa1eSSimon Glass }; 3808a7aa1eSSimon Glass 3908a7aa1eSSimon Glass ushort *configuration_get_cmap(void) 4008a7aa1eSSimon Glass { 4108a7aa1eSSimon Glass #if defined(CONFIG_LCD_LOGO) 4208a7aa1eSSimon Glass return bmp_logo_palette; 4308a7aa1eSSimon Glass #else 4408a7aa1eSSimon Glass return NULL; 4508a7aa1eSSimon Glass #endif 4608a7aa1eSSimon Glass } 4708a7aa1eSSimon Glass 48*aaca5b19SSimon Glass static void exynos_lcd_init_mem(void *lcdbase, struct vidinfo *vid) 4908a7aa1eSSimon Glass { 5008a7aa1eSSimon Glass unsigned long palette_size; 5108a7aa1eSSimon Glass unsigned int fb_size; 5208a7aa1eSSimon Glass 5308a7aa1eSSimon Glass fb_size = vid->vl_row * vid->vl_col * (NBITS(vid->vl_bpix) >> 3); 5408a7aa1eSSimon Glass 5508a7aa1eSSimon Glass palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16; 5608a7aa1eSSimon Glass 5708a7aa1eSSimon Glass exynos_fimd_lcd_init_mem((unsigned long)lcdbase, 5808a7aa1eSSimon Glass (unsigned long)fb_size, palette_size); 5908a7aa1eSSimon Glass } 6008a7aa1eSSimon Glass 61*aaca5b19SSimon Glass static void exynos_lcd_init(struct vidinfo *vid) 6208a7aa1eSSimon Glass { 6308a7aa1eSSimon Glass exynos_fimd_lcd_init(vid); 6408a7aa1eSSimon Glass 6508a7aa1eSSimon Glass /* Enable flushing after LCD writes if requested */ 6608a7aa1eSSimon Glass lcd_set_flush_dcache(1); 6708a7aa1eSSimon Glass } 6808a7aa1eSSimon Glass 6908a7aa1eSSimon Glass __weak void exynos_cfg_lcd_gpio(void) 7008a7aa1eSSimon Glass { 7108a7aa1eSSimon Glass } 7208a7aa1eSSimon Glass 7308a7aa1eSSimon Glass __weak void exynos_backlight_on(unsigned int onoff) 7408a7aa1eSSimon Glass { 7508a7aa1eSSimon Glass } 7608a7aa1eSSimon Glass 7708a7aa1eSSimon Glass __weak void exynos_reset_lcd(void) 7808a7aa1eSSimon Glass { 7908a7aa1eSSimon Glass } 8008a7aa1eSSimon Glass 8108a7aa1eSSimon Glass __weak void exynos_lcd_power_on(void) 8208a7aa1eSSimon Glass { 8308a7aa1eSSimon Glass } 8408a7aa1eSSimon Glass 8508a7aa1eSSimon Glass __weak void exynos_cfg_ldo(void) 8608a7aa1eSSimon Glass { 8708a7aa1eSSimon Glass } 8808a7aa1eSSimon Glass 8908a7aa1eSSimon Glass __weak void exynos_enable_ldo(unsigned int onoff) 9008a7aa1eSSimon Glass { 9108a7aa1eSSimon Glass } 9208a7aa1eSSimon Glass 9308a7aa1eSSimon Glass __weak void exynos_backlight_reset(void) 9408a7aa1eSSimon Glass { 9508a7aa1eSSimon Glass } 9608a7aa1eSSimon Glass 97*aaca5b19SSimon Glass __weak int exynos_lcd_misc_init(struct vidinfo *vid) 9808a7aa1eSSimon Glass { 9908a7aa1eSSimon Glass return 0; 10008a7aa1eSSimon Glass } 10108a7aa1eSSimon Glass 102*aaca5b19SSimon Glass static void lcd_panel_on(struct vidinfo *vid) 10308a7aa1eSSimon Glass { 10408a7aa1eSSimon Glass struct gpio_desc pwm_out_gpio; 10508a7aa1eSSimon Glass struct gpio_desc bl_en_gpio; 10608a7aa1eSSimon Glass unsigned int node; 10708a7aa1eSSimon Glass 10808a7aa1eSSimon Glass udelay(vid->init_delay); 10908a7aa1eSSimon Glass 11008a7aa1eSSimon Glass exynos_backlight_reset(); 11108a7aa1eSSimon Glass 11208a7aa1eSSimon Glass exynos_cfg_lcd_gpio(); 11308a7aa1eSSimon Glass 11408a7aa1eSSimon Glass exynos_lcd_power_on(); 11508a7aa1eSSimon Glass 11608a7aa1eSSimon Glass udelay(vid->power_on_delay); 11708a7aa1eSSimon Glass 11808a7aa1eSSimon Glass if (vid->dp_enabled) 11908a7aa1eSSimon Glass exynos_init_dp(); 12008a7aa1eSSimon Glass 12108a7aa1eSSimon Glass exynos_reset_lcd(); 12208a7aa1eSSimon Glass 12308a7aa1eSSimon Glass udelay(vid->reset_delay); 12408a7aa1eSSimon Glass 12508a7aa1eSSimon Glass exynos_backlight_on(1); 12608a7aa1eSSimon Glass 12708a7aa1eSSimon Glass node = fdtdec_next_compatible(gd->fdt_blob, 0, 12808a7aa1eSSimon Glass COMPAT_SAMSUNG_EXYNOS_FIMD); 12908a7aa1eSSimon Glass if (node <= 0) { 13008a7aa1eSSimon Glass debug("FIMD: Can't get device node for FIMD\n"); 13108a7aa1eSSimon Glass return; 13208a7aa1eSSimon Glass } 13308a7aa1eSSimon Glass gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,pwm-out-gpio", 13408a7aa1eSSimon Glass 0, &pwm_out_gpio, 13508a7aa1eSSimon Glass GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); 13608a7aa1eSSimon Glass 13708a7aa1eSSimon Glass gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,bl-en-gpio", 0, 13808a7aa1eSSimon Glass &bl_en_gpio, 13908a7aa1eSSimon Glass GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); 14008a7aa1eSSimon Glass 14108a7aa1eSSimon Glass exynos_cfg_ldo(); 14208a7aa1eSSimon Glass 14308a7aa1eSSimon Glass exynos_enable_ldo(1); 14408a7aa1eSSimon Glass 14508a7aa1eSSimon Glass if (vid->mipi_enabled) 14608a7aa1eSSimon Glass exynos_mipi_dsi_init(); 14708a7aa1eSSimon Glass } 14808a7aa1eSSimon Glass 14908a7aa1eSSimon Glass int exynos_lcd_early_init(const void *blob) 15008a7aa1eSSimon Glass { 15108a7aa1eSSimon Glass unsigned int node; 15208a7aa1eSSimon Glass node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD); 15308a7aa1eSSimon Glass if (node <= 0) { 15408a7aa1eSSimon Glass debug("exynos_fb: Can't get device node for fimd\n"); 15508a7aa1eSSimon Glass return -ENODEV; 15608a7aa1eSSimon Glass } 15708a7aa1eSSimon Glass 15808a7aa1eSSimon Glass panel_info.vl_col = fdtdec_get_int(blob, node, "samsung,vl-col", 0); 15908a7aa1eSSimon Glass if (panel_info.vl_col == 0) { 16008a7aa1eSSimon Glass debug("Can't get XRES\n"); 16108a7aa1eSSimon Glass return -ENXIO; 16208a7aa1eSSimon Glass } 16308a7aa1eSSimon Glass 16408a7aa1eSSimon Glass panel_info.vl_row = fdtdec_get_int(blob, node, "samsung,vl-row", 0); 16508a7aa1eSSimon Glass if (panel_info.vl_row == 0) { 16608a7aa1eSSimon Glass debug("Can't get YRES\n"); 16708a7aa1eSSimon Glass return -ENXIO; 16808a7aa1eSSimon Glass } 16908a7aa1eSSimon Glass 17008a7aa1eSSimon Glass panel_info.vl_width = fdtdec_get_int(blob, node, 17108a7aa1eSSimon Glass "samsung,vl-width", 0); 17208a7aa1eSSimon Glass 17308a7aa1eSSimon Glass panel_info.vl_height = fdtdec_get_int(blob, node, 17408a7aa1eSSimon Glass "samsung,vl-height", 0); 17508a7aa1eSSimon Glass 17608a7aa1eSSimon Glass panel_info.vl_freq = fdtdec_get_int(blob, node, "samsung,vl-freq", 0); 17708a7aa1eSSimon Glass if (panel_info.vl_freq == 0) { 17808a7aa1eSSimon Glass debug("Can't get refresh rate\n"); 17908a7aa1eSSimon Glass return -ENXIO; 18008a7aa1eSSimon Glass } 18108a7aa1eSSimon Glass 18208a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-clkp")) 18308a7aa1eSSimon Glass panel_info.vl_clkp = CONFIG_SYS_LOW; 18408a7aa1eSSimon Glass 18508a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-oep")) 18608a7aa1eSSimon Glass panel_info.vl_oep = CONFIG_SYS_LOW; 18708a7aa1eSSimon Glass 18808a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-hsp")) 18908a7aa1eSSimon Glass panel_info.vl_hsp = CONFIG_SYS_LOW; 19008a7aa1eSSimon Glass 19108a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-vsp")) 19208a7aa1eSSimon Glass panel_info.vl_vsp = CONFIG_SYS_LOW; 19308a7aa1eSSimon Glass 19408a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-dp")) 19508a7aa1eSSimon Glass panel_info.vl_dp = CONFIG_SYS_LOW; 19608a7aa1eSSimon Glass 19708a7aa1eSSimon Glass panel_info.vl_bpix = fdtdec_get_int(blob, node, "samsung,vl-bpix", 0); 19808a7aa1eSSimon Glass if (panel_info.vl_bpix == 0) { 19908a7aa1eSSimon Glass debug("Can't get bits per pixel\n"); 20008a7aa1eSSimon Glass return -ENXIO; 20108a7aa1eSSimon Glass } 20208a7aa1eSSimon Glass 20308a7aa1eSSimon Glass panel_info.vl_hspw = fdtdec_get_int(blob, node, "samsung,vl-hspw", 0); 20408a7aa1eSSimon Glass if (panel_info.vl_hspw == 0) { 20508a7aa1eSSimon Glass debug("Can't get hsync width\n"); 20608a7aa1eSSimon Glass return -ENXIO; 20708a7aa1eSSimon Glass } 20808a7aa1eSSimon Glass 20908a7aa1eSSimon Glass panel_info.vl_hfpd = fdtdec_get_int(blob, node, "samsung,vl-hfpd", 0); 21008a7aa1eSSimon Glass if (panel_info.vl_hfpd == 0) { 21108a7aa1eSSimon Glass debug("Can't get right margin\n"); 21208a7aa1eSSimon Glass return -ENXIO; 21308a7aa1eSSimon Glass } 21408a7aa1eSSimon Glass 21508a7aa1eSSimon Glass panel_info.vl_hbpd = (u_char)fdtdec_get_int(blob, node, 21608a7aa1eSSimon Glass "samsung,vl-hbpd", 0); 21708a7aa1eSSimon Glass if (panel_info.vl_hbpd == 0) { 21808a7aa1eSSimon Glass debug("Can't get left margin\n"); 21908a7aa1eSSimon Glass return -ENXIO; 22008a7aa1eSSimon Glass } 22108a7aa1eSSimon Glass 22208a7aa1eSSimon Glass panel_info.vl_vspw = (u_char)fdtdec_get_int(blob, node, 22308a7aa1eSSimon Glass "samsung,vl-vspw", 0); 22408a7aa1eSSimon Glass if (panel_info.vl_vspw == 0) { 22508a7aa1eSSimon Glass debug("Can't get vsync width\n"); 22608a7aa1eSSimon Glass return -ENXIO; 22708a7aa1eSSimon Glass } 22808a7aa1eSSimon Glass 22908a7aa1eSSimon Glass panel_info.vl_vfpd = fdtdec_get_int(blob, node, 23008a7aa1eSSimon Glass "samsung,vl-vfpd", 0); 23108a7aa1eSSimon Glass if (panel_info.vl_vfpd == 0) { 23208a7aa1eSSimon Glass debug("Can't get lower margin\n"); 23308a7aa1eSSimon Glass return -ENXIO; 23408a7aa1eSSimon Glass } 23508a7aa1eSSimon Glass 23608a7aa1eSSimon Glass panel_info.vl_vbpd = fdtdec_get_int(blob, node, "samsung,vl-vbpd", 0); 23708a7aa1eSSimon Glass if (panel_info.vl_vbpd == 0) { 23808a7aa1eSSimon Glass debug("Can't get upper margin\n"); 23908a7aa1eSSimon Glass return -ENXIO; 24008a7aa1eSSimon Glass } 24108a7aa1eSSimon Glass 24208a7aa1eSSimon Glass panel_info.vl_cmd_allow_len = fdtdec_get_int(blob, node, 24308a7aa1eSSimon Glass "samsung,vl-cmd-allow-len", 0); 24408a7aa1eSSimon Glass 24508a7aa1eSSimon Glass panel_info.win_id = fdtdec_get_int(blob, node, "samsung,winid", 0); 24608a7aa1eSSimon Glass panel_info.init_delay = fdtdec_get_int(blob, node, 24708a7aa1eSSimon Glass "samsung,init-delay", 0); 24808a7aa1eSSimon Glass panel_info.power_on_delay = fdtdec_get_int(blob, node, 24908a7aa1eSSimon Glass "samsung,power-on-delay", 0); 25008a7aa1eSSimon Glass panel_info.reset_delay = fdtdec_get_int(blob, node, 25108a7aa1eSSimon Glass "samsung,reset-delay", 0); 25208a7aa1eSSimon Glass panel_info.interface_mode = fdtdec_get_int(blob, node, 25308a7aa1eSSimon Glass "samsung,interface-mode", 0); 25408a7aa1eSSimon Glass panel_info.mipi_enabled = fdtdec_get_int(blob, node, 25508a7aa1eSSimon Glass "samsung,mipi-enabled", 0); 25608a7aa1eSSimon Glass panel_info.dp_enabled = fdtdec_get_int(blob, node, 25708a7aa1eSSimon Glass "samsung,dp-enabled", 0); 25808a7aa1eSSimon Glass panel_info.cs_setup = fdtdec_get_int(blob, node, 25908a7aa1eSSimon Glass "samsung,cs-setup", 0); 26008a7aa1eSSimon Glass panel_info.wr_setup = fdtdec_get_int(blob, node, 26108a7aa1eSSimon Glass "samsung,wr-setup", 0); 26208a7aa1eSSimon Glass panel_info.wr_act = fdtdec_get_int(blob, node, "samsung,wr-act", 0); 26308a7aa1eSSimon Glass panel_info.wr_hold = fdtdec_get_int(blob, node, "samsung,wr-hold", 0); 26408a7aa1eSSimon Glass 26508a7aa1eSSimon Glass panel_info.logo_on = fdtdec_get_int(blob, node, "samsung,logo-on", 0); 26608a7aa1eSSimon Glass if (panel_info.logo_on) { 26708a7aa1eSSimon Glass panel_info.logo_width = fdtdec_get_int(blob, node, 26808a7aa1eSSimon Glass "samsung,logo-width", 0); 26908a7aa1eSSimon Glass panel_info.logo_height = fdtdec_get_int(blob, node, 27008a7aa1eSSimon Glass "samsung,logo-height", 0); 27108a7aa1eSSimon Glass panel_info.logo_addr = fdtdec_get_int(blob, node, 27208a7aa1eSSimon Glass "samsung,logo-addr", 0); 27308a7aa1eSSimon Glass } 27408a7aa1eSSimon Glass 27508a7aa1eSSimon Glass panel_info.rgb_mode = fdtdec_get_int(blob, node, 27608a7aa1eSSimon Glass "samsung,rgb-mode", 0); 27708a7aa1eSSimon Glass panel_info.pclk_name = fdtdec_get_int(blob, node, 27808a7aa1eSSimon Glass "samsung,pclk-name", 0); 27908a7aa1eSSimon Glass panel_info.sclk_div = fdtdec_get_int(blob, node, 28008a7aa1eSSimon Glass "samsung,sclk-div", 0); 28108a7aa1eSSimon Glass panel_info.dual_lcd_enabled = fdtdec_get_int(blob, node, 28208a7aa1eSSimon Glass "samsung,dual-lcd-enabled", 0); 28308a7aa1eSSimon Glass 28408a7aa1eSSimon Glass return 0; 28508a7aa1eSSimon Glass } 28608a7aa1eSSimon Glass 28708a7aa1eSSimon Glass void lcd_ctrl_init(void *lcdbase) 28808a7aa1eSSimon Glass { 28908a7aa1eSSimon Glass set_system_display_ctrl(); 29008a7aa1eSSimon Glass set_lcd_clk(); 29108a7aa1eSSimon Glass 29208a7aa1eSSimon Glass #ifdef CONFIG_EXYNOS_MIPI_DSIM 29308a7aa1eSSimon Glass exynos_init_dsim_platform_data(&panel_info); 29408a7aa1eSSimon Glass #endif 29508a7aa1eSSimon Glass exynos_lcd_misc_init(&panel_info); 29608a7aa1eSSimon Glass 29708a7aa1eSSimon Glass panel_width = panel_info.vl_width; 29808a7aa1eSSimon Glass panel_height = panel_info.vl_height; 29908a7aa1eSSimon Glass 30008a7aa1eSSimon Glass exynos_lcd_init_mem(lcdbase, &panel_info); 30108a7aa1eSSimon Glass 30208a7aa1eSSimon Glass exynos_lcd_init(&panel_info); 30308a7aa1eSSimon Glass } 30408a7aa1eSSimon Glass 30508a7aa1eSSimon Glass void lcd_enable(void) 30608a7aa1eSSimon Glass { 30708a7aa1eSSimon Glass if (panel_info.logo_on) { 30808a7aa1eSSimon Glass memset((void *) gd->fb_base, 0, panel_width * panel_height * 30908a7aa1eSSimon Glass (NBITS(panel_info.vl_bpix) >> 3)); 31008a7aa1eSSimon Glass } 31108a7aa1eSSimon Glass 31208a7aa1eSSimon Glass lcd_panel_on(&panel_info); 31308a7aa1eSSimon Glass } 31408a7aa1eSSimon Glass 31508a7aa1eSSimon Glass /* dummy function */ 31608a7aa1eSSimon Glass void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue) 31708a7aa1eSSimon Glass { 31808a7aa1eSSimon Glass return; 31908a7aa1eSSimon Glass } 320