void exynos_lcd_power_on(void) { 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([email protected]): Use device tree */ gpio_request(EXYNOS5420_GPIO_X35, "edp_slp#"); gpio_direction_output(EXYNOS5420_GPIO_X35, 1); /* EDP_SLP# */ mdelay(10); gpio_request(EXYNOS5420_GPIO_Y77, "edp_rst#"); gpio_direction_output(EXYNOS5420_GPIO_Y77, 1); /* EDP_RST# */ gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd"); gpio_direction_input(EXYNOS5420_GPIO_X26); /* EDP_HPD */ gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE); if (has_edp_bridge()) if (parade_init(gd->fdt_blob)) printf("%s: ps8625_init() failed\n", __func__); }
int board_init(void) { struct fdt_memory mem_config; /* Record the time we spent before SPL */ bootstage_add_record(BOOTSTAGE_ID_START_SPL, "spl_start", 0, CONFIG_SPL_TIME_US); bootstage_mark_name(BOOTSTAGE_ID_BOARD_INIT, "board_init"); if (fdtdec_decode_memory(gd->fdt_blob, &mem_config)) { debug("%s: Failed to decode memory\n", __func__); return -1; } gd->bd->bi_boot_params = mem_config.start + 0x100UL; #ifdef CONFIG_OF_CONTROL gd->bd->bi_arch_number = fdtdec_get_config_int(gd->fdt_blob, "machine-arch-id", -1); if (gd->bd->bi_arch_number == -1U) debug("Warning: No /config/machine-arch-id defined in fdt\n"); #endif #ifdef CONFIG_EXYNOS_SPI spi_init(); #endif if (board_i2c_arb_init(gd->fdt_blob)) return -1; board_i2c_init(gd->fdt_blob); #ifdef CONFIG_TPS65090_POWER tps65090_init(); /* * If we just reset, disable the backlight and lcd fets before * [re-]initializing the lcd. This ensures we are always in the same * state during lcd init. We've seen some oddities with these fets, so * this removes a bit of uncertainty. */ if (board_is_processor_reset()) { tps65090_fet_disable(1); tps65090_fet_disable(6); } #endif exynos_lcd_check_next_stage(gd->fdt_blob, 0); if (max77686_enable_32khz_cp()) { debug("%s: Failed to enable max77686 32khz coprocessor clock\n", __func__); return -1; } #if defined CONFIG_EXYNOS_CPUFREQ if (exynos5250_cpufreq_init(gd->fdt_blob)) { debug("%s: Failed to init CPU frequency scaling\n", __func__); return -1; } #endif #if defined CONFIG_EXYNOS_TMU if (tmu_init(gd->fdt_blob)) { debug("%s: Failed to init TMU\n", __func__); return -1; } #endif /* Clock Gating all the unused IP's to save power */ clock_gate(); /* Disable USB3.0 PLL to save 250mW of power */ disable_usb30_pll(); if (board_init_mkbp_devices(gd->fdt_blob)) return -1; board_configure_analogix(); board_enable_audio_codec(); exynos_lcd_check_next_stage(gd->fdt_blob, 0); bootstage_mark_name(BOOTSTAGE_ID_BOARD_INIT_DONE, "board_init_done"); return 0; }