/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/pnp_ops.h> #include <superio/nuvoton/common/nuvoton.h> #include <superio/nuvoton/nct6776/nct6776.h> #include <southbridge/intel/lynxpoint/pch.h> #define GLOBAL_DEV PNP_DEV(0x2e, 0) #define SERIAL_DEV PNP_DEV(0x2e, NCT6776_SP1) #define ACPI_DEV PNP_DEV(0x2e, NCT6776_ACPI) /* * Asrock B85M Pro4 Super I/O GPIOs * * +------+-----+---------------------------+ * | GPIO | Pin | Description | * +------+-----+---------------------------+ * | GP00 | 2 | N/C | * | GP01 | 4 | CPU Fan 4-pin tach enable | * | GP02 | 5 | CPU Fan 3-pin tach enable | * | GP03 | 8 | CPU Fan 3-pin FON# signal | * | GP04 | 9 | N/C | * | GP05 | 11 | N/C (+1.05V_PCH_GPIO) | * | GP06 | 12 | N/C (+1.5V_PCH_GPIO) | * | GP07 | 13 | N/C | * +------+-----+---------------------------+ * | GP10 | 123 | N/C (VCCM_OV1) | * | GP11 | 122 | N/C (VCCM_OV2) | * | GP12 | 121 | N/C (VCCM_OV3) | * | GP13 | 120 | N/C (VCCM_STEP) | * | GP14 | 119 | Assert HDA_SDO (SIO_GP14) | * | GP15 | 118 | N/C (PWM_THROTTLE) | * | GP16 | 117 | OTP for VCORE (OTE_GATE1) | * | GP17 | 116 | N/C (IMON_GPIO) | * +------+-----+---------------------------+ * | GP70 | 93 | PWR_FANIN | * | GP71 | 92 | N/C | * | GP72 | 91 | N/C (SIO_PIN91) | * | GP73 | 90 | CHA2_FANIN | * | GP74 | 89 | N/C (SIO_PIN89) | * | GP75 | 88 | N/C (SIO_PIN88) | * | GP76 | 87 | HDA reset gate (GP76) | * | GP77 | 86 | HDD_LED gate | * +------+-----+---------------------------+ */ void mainboard_config_superio(void) { nuvoton_pnp_enter_conf_state(GLOBAL_DEV); /* Select SIO pin mux states */ pnp_write_config(GLOBAL_DEV, 0x1b, 0x68); pnp_write_config(GLOBAL_DEV, 0x1c, 0x80); pnp_write_config(GLOBAL_DEV, 0x24, 0x1c); pnp_write_config(GLOBAL_DEV, 0x27, 0xd0); pnp_write_config(GLOBAL_DEV, 0x2a, 0x62); pnp_write_config(GLOBAL_DEV, 0x2c, 0x80); pnp_write_config(GLOBAL_DEV, 0x2f, 0x03); /* Power RAM in S3 and let the PCH handle power failure actions */ pnp_set_logical_device(ACPI_DEV); pnp_write_config(ACPI_DEV, 0xe4, 0x70); nuvoton_pnp_exit_conf_state(GLOBAL_DEV); /* Enable UART */ nuvoton_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); }