src/mainboard/amd/bilby/bootblock.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootblock_common.h>
   4 #include <amdblocks/lpc.h>
   5 #include <superio/smsc/sio1036/sio1036.h>
   6 #include "gpio.h"
   7
   8 #define SERIAL_DEV PNP_DEV(CONFIG_SUPERIO_ADDR_BASE, SIO1036_SP1)
   9
  10 void bootblock_mainboard_early_init(void)
  11 {
  12         mainboard_program_early_gpios();
  13
  14         if (CONFIG(SUPERIO_SMSC_SIO1036)) {
  15                 if (CONFIG_SUPERIO_ADDR_BASE == 0x4e) {
  16                         lpc_enable_sio_decode(LPC_SELECT_SIO_4E4F);
  17                 } else {
  18                         // set up 16 byte wide I/O range window for the super IO
  19                         lpc_set_wideio_range(CONFIG_SUPERIO_ADDR_BASE & ~0xF, 16);
  20                 }
  21                 lpc_enable_decode(DECODE_ENABLE_SERIAL_PORT0 << CONFIG_UART_FOR_CONSOLE);
  22                 sio1036_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
  23         }
  24 }