1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #include <amdblocks/acpimmio.h> 4 #include <amdblocks/aoac.h> 5 #include <amdblocks/espi.h> 6 #include <amdblocks/i2c.h> 7 #include <amdblocks/lpc.h> 8 #include <amdblocks/pmlib.h> 9 #include <amdblocks/smbus.h> 10 #include <amdblocks/spi.h> 11 #include <amdblocks/uart.h> 12 #include <soc/i2c.h> 13 #include <soc/southbridge.h> 14 #include <soc/uart.h> 15 #include <types.h> 16 17 #include "chip.h" 18 lpc_configure_decodes(void)19static void lpc_configure_decodes(void) 20 { 21 if (CONFIG(POST_IO) && (CONFIG_POST_IO_PORT == 0x80)) 22 lpc_enable_port80(); 23 } 24 25 /* Before console init */ fch_pre_init(void)26void fch_pre_init(void) 27 { 28 /* Enable_acpimmio_decode_pm04 to enable the ACPIMMIO decode which is needed to access 29 the GPIO registers. */ 30 enable_acpimmio_decode_pm04(); 31 /* Setup SPI base by calling lpc_early_init before setting up eSPI. */ 32 lpc_early_init(); 33 34 /* Setup eSPI to enable port80 routing if the board is using eSPI and the eSPI 35 interface hasn't already been set up in verstage on PSP */ 36 if (CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI) && !CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) 37 configure_espi_with_mb_hook(); 38 39 if (!CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI)) 40 lpc_configure_decodes(); 41 42 fch_spi_early_init(); 43 fch_smbus_init(); 44 fch_enable_cf9_io(); 45 fch_enable_legacy_io(); 46 enable_aoac_devices(); 47 48 /* 49 * On reset Range_0 defaults to enabled. We want to start with a clean 50 * slate to not have things unexpectedly enabled. 51 */ 52 clear_uart_legacy_config(); 53 54 if (CONFIG(AMD_SOC_CONSOLE_UART)) 55 set_uart_config(CONFIG_UART_FOR_CONSOLE); 56 57 /* disable the keyboard reset function before mainboard GPIO setup */ 58 if (CONFIG(DISABLE_KEYBOARD_RESET_PIN)) 59 fch_disable_kb_rst(); 60 } 61 62 /* After console init */ fch_early_init(void)63void fch_early_init(void) 64 { 65 reset_i2c_peripherals(); 66 pm_set_power_failure_state(); 67 fch_print_pmxc0_status(); 68 i2c_soc_early_init(); 69 show_spi_speeds_and_modes(); 70 71 if (CONFIG(DISABLE_SPI_FLASH_ROM_SHARING)) 72 lpc_disable_spi_rom_sharing(); 73 } 74