void platform_romstage_main(void) { tsadc_init(TSHUT_POL_HIGH); /* Init DVS to conservative values. */ init_dvs_outputs(); prepare_sdmmc(); prepare_usb(); sdram_init(get_sdram_config()); mmu_config_range((void *)0, (uintptr_t)sdram_size_mb() * MiB, CACHED_MEM); mmu_config_range(_dma_coherent, REGION_SIZE(dma_coherent), UNCACHED_MEM); }
void main(void) { console_init(); tsadc_init(TSHUT_POL_HIGH); exception_init(); /* Init DVS to conservative values. */ init_dvs_outputs(); prepare_usb(); sdram_init(get_sdram_config()); mmu_config_range((void *)0, (uintptr_t)dram_size, CACHED_MEM); mmu_config_range(_dma_coherent, _dma_coherent_size, UNCACHED_MEM); cbmem_initialize_empty(); run_ramstage(); }
/* this happens after cpu_init where exynos resources are set */ static void mainboard_init(device_t dev) { int dp_tries; struct s5p_dp_device dp_device = { .base = exynos_dp1, .video_info = &dp_video_info, }; void *fb_addr = (void *)(get_fb_base_kb() * KiB); prepare_usb(); gpio_init(); setup_storage(); i2c_init(TPS65090_BUS, I2C_0_SPEED, I2C_SLAVE); i2c_init(7, I2C_0_SPEED, I2C_SLAVE); tmu_init(&exynos5250_tmu_info); /* Clock Gating all the unused IP's to save power */ clock_gate(); /* Disable USB3.0 PLL to save 250mW of power */ disable_usb30_pll(); sdmmc_vdd(); set_vbe_mode_info_valid(&edid, (uintptr_t)fb_addr); lcd_vdd(); // FIXME: should timeout do { udelay(50); } while (!exynos_dp_hotplug()); exynos_dp_bridge_setup(); for (dp_tries = 1; dp_tries <= MAX_DP_TRIES; dp_tries++) { exynos_dp_bridge_init(); if (exynos_dp_hotplug()) { exynos_dp_reset(); continue; } if (dp_controller_init(&dp_device)) continue; udelay(LCD_T3_DELAY_MS * 1000); backlight_vdd(); backlight_pwm(); backlight_en(); /* if we're here, we're successful */ break; } if (dp_tries > MAX_DP_TRIES) printk(BIOS_ERR, "%s: Failed to set up displayport\n", __func__); setup_usb(); // Uncomment to get excessive GPIO output: // gpio_info(); }