src/mainboard/lenovo/m900_tiny/bootblock.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootblock_common.h>
   4 #include <device/pnp_ops.h>
   5 #include <mainboard/gpio.h>
   6 #include <soc/gpio.h>
   7 #include <superio/nuvoton/common/nuvoton.h>
   8 #include <superio/nuvoton/nct6687d/nct6687d.h>
   9
  10 #define SERIAL_DEV PNP_DEV(0x2e, NCT6687D_SP1)
  11 #define POWER_DEV  PNP_DEV(0x2e, NCT6687D_SLEEP_PWR)
  12
  13 void bootblock_mainboard_early_init(void)
  14 {
  15         mainboard_configure_early_gpios();
  16
  17         /* Replicate vendor settings for multi-function pins in global config LDN */
  18         nuvoton_pnp_enter_conf_state(SERIAL_DEV);
  19         pnp_write_config(SERIAL_DEV, 0x13, 0x0c);
  20         pnp_write_config(SERIAL_DEV, 0x1d, 0x08);
  21         pnp_write_config(SERIAL_DEV, 0x1f, 0xf0);
  22         pnp_write_config(SERIAL_DEV, 0x22, 0xbc);
  23         pnp_write_config(SERIAL_DEV, 0x23, 0xdf);
  24         pnp_write_config(SERIAL_DEV, 0x24, 0x81);
  25         pnp_write_config(SERIAL_DEV, 0x25, 0xff);
  26         pnp_write_config(SERIAL_DEV, 0x29, 0x6d);
  27         pnp_write_config(SERIAL_DEV, 0x2a, 0x8f);
  28
  29         /* Configure pin for PECI */
  30         pnp_set_logical_device(POWER_DEV);
  31         pnp_write_config(POWER_DEV, 0xf3, 0x0c);
  32
  33         nuvoton_pnp_exit_conf_state(POWER_DEV);
  34
  35         /* Enable serial */
  36         if (CONFIG(CONSOLE_SERIAL))
  37                 nuvoton_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
  38 }