1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 2a257f626SPaul Burton /* 3a257f626SPaul Burton * Copyright (C) 2013 Imagination Technologies 4c5bf161fSPaul Burton * Author: Paul Burton <paul.burton@mips.com> 5a257f626SPaul Burton * 6a257f626SPaul Burton * Setup code for the FDC37M817 super I/O controller 7a257f626SPaul Burton */ 8a257f626SPaul Burton 9a257f626SPaul Burton #include <common.h> 10a257f626SPaul Burton #include <asm/io.h> 11a257f626SPaul Burton 12a257f626SPaul Burton #define SIO_CONF_PORT 0x3f0 13a257f626SPaul Burton #define SIO_DATA_PORT 0x3f1 14a257f626SPaul Burton 15a257f626SPaul Burton enum sio_conf_key { 16a257f626SPaul Burton SIOCONF_DEVNUM = 0x07, 17a257f626SPaul Burton SIOCONF_ACTIVATE = 0x30, 18a257f626SPaul Burton SIOCONF_ENTER_SETUP = 0x55, 19a257f626SPaul Burton SIOCONF_BASE_HIGH = 0x60, 20a257f626SPaul Burton SIOCONF_BASE_LOW = 0x61, 21a257f626SPaul Burton SIOCONF_PRIMARY_INT = 0x70, 22a257f626SPaul Burton SIOCONF_EXIT_SETUP = 0xaa, 23a257f626SPaul Burton SIOCONF_MODE = 0xf0, 24a257f626SPaul Burton }; 25a257f626SPaul Burton 26a257f626SPaul Burton static struct { 27a257f626SPaul Burton u8 key; 28a257f626SPaul Burton u8 data; 29a257f626SPaul Burton } sio_config[] = { 30a257f626SPaul Burton /* tty0 */ 31a257f626SPaul Burton { SIOCONF_DEVNUM, 0x04 }, 32a257f626SPaul Burton { SIOCONF_BASE_HIGH, 0x03 }, 33a257f626SPaul Burton { SIOCONF_BASE_LOW, 0xf8 }, 34a257f626SPaul Burton { SIOCONF_MODE, 0x02 }, 35a257f626SPaul Burton { SIOCONF_PRIMARY_INT, 0x04 }, 36a257f626SPaul Burton { SIOCONF_ACTIVATE, 0x01 }, 37a257f626SPaul Burton 38a257f626SPaul Burton /* tty1 */ 39a257f626SPaul Burton { SIOCONF_DEVNUM, 0x05 }, 40a257f626SPaul Burton { SIOCONF_BASE_HIGH, 0x02 }, 41a257f626SPaul Burton { SIOCONF_BASE_LOW, 0xf8 }, 42a257f626SPaul Burton { SIOCONF_MODE, 0x02 }, 43a257f626SPaul Burton { SIOCONF_PRIMARY_INT, 0x03 }, 44a257f626SPaul Burton { SIOCONF_ACTIVATE, 0x01 }, 45a257f626SPaul Burton }; 46a257f626SPaul Burton 4791ec615eSPaul Burton void malta_superio_init(void) 48a257f626SPaul Burton { 49a257f626SPaul Burton unsigned i; 50a257f626SPaul Burton 51a257f626SPaul Burton /* enter config state */ 5291ec615eSPaul Burton outb(SIOCONF_ENTER_SETUP, SIO_CONF_PORT); 53a257f626SPaul Burton 54a257f626SPaul Burton /* configure peripherals */ 55a257f626SPaul Burton for (i = 0; i < ARRAY_SIZE(sio_config); i++) { 5691ec615eSPaul Burton outb(sio_config[i].key, SIO_CONF_PORT); 5791ec615eSPaul Burton outb(sio_config[i].data, SIO_DATA_PORT); 58a257f626SPaul Burton } 59a257f626SPaul Burton 60a257f626SPaul Burton /* exit config state */ 6191ec615eSPaul Burton outb(SIOCONF_EXIT_SETUP, SIO_CONF_PORT); 62a257f626SPaul Burton } 63