src/soc/amd/phoenix/early_fch.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /* TODO: Update for Phoenix */
   4
   5 #include <amdblocks/acpimmio.h>
   6 #include <amdblocks/aoac.h>
   7 #include <amdblocks/espi.h>
   8 #include <amdblocks/i2c.h>
   9 #include <amdblocks/lpc.h>
  10 #include <amdblocks/pmlib.h>
  11 #include <amdblocks/smbus.h>
  12 #include <amdblocks/uart.h>
  13 #include <soc/i2c.h>
  14 #include <soc/southbridge.h>
  15 #include <soc/uart.h>
  16
  17 #include "chip.h"
  18
  19 /* Before console init */
  20 void fch_pre_init(void)
  21 {
  22         /*
  23          * PM_04_ACPIMMIO_DECODE_EN which enables the ACPIMMIO decode is already set after
  24          * reset. Since the IO port based indirect PM register space access isn't implemented
  25          * in Phoenix any more, don't call enable_acpimmio_decode_pm04() which uses the
  26          * indirect PM register space access via the IO ports that aren't implemented any more.
  27          */
  28         /* Setup SPI base by calling lpc_early_init before setting up eSPI. */
  29         lpc_early_init();
  30
  31         /* Setup eSPI to enable port80 routing if the board is using eSPI and the eSPI
  32            interface hasn't already been set up in verstage on PSP */
  33         if (CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI) && !CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK))
  34                 configure_espi_with_mb_hook();
  35
  36         fch_spi_early_init();
  37         fch_smbus_init();
  38         fch_enable_cf9_io();
  39         fch_enable_legacy_io();
  40         fch_disable_legacy_dma_io();
  41         enable_aoac_devices();
  42
  43         /*
  44          * On reset Range_0 defaults to enabled. We want to start with a clean
  45          * slate to not have things unexpectedly enabled.
  46          */
  47         clear_uart_legacy_config();
  48
  49         if (CONFIG(AMD_SOC_CONSOLE_UART))
  50                 set_uart_config(CONFIG_UART_FOR_CONSOLE);
  51
  52         /* disable the keyboard reset function before mainboard GPIO setup */
  53         if (CONFIG(DISABLE_KEYBOARD_RESET_PIN))
  54                 fch_disable_kb_rst();
  55 }
  56
  57 /* After console init */
  58 void fch_early_init(void)
  59 {
  60         reset_i2c_peripherals();
  61         pm_set_power_failure_state();
  62         fch_print_pmxc0_status();
  63         i2c_soc_early_init();
  64         show_spi_speeds_and_modes();
  65
  66         if (CONFIG(DISABLE_SPI_FLASH_ROM_SHARING))
  67                 lpc_disable_spi_rom_sharing();
  68 }