1a257f626SPaul Burton /* 2a257f626SPaul Burton * Copyright (C) 2013 Imagination Technologies 3*c5bf161fSPaul Burton * Author: Paul Burton <paul.burton@mips.com> 4a257f626SPaul Burton * 5a257f626SPaul Burton * Setup code for the FDC37M817 super I/O controller 6a257f626SPaul Burton * 7a257f626SPaul Burton * SPDX-License-Identifier: GPL-2.0+ 8a257f626SPaul Burton */ 9a257f626SPaul Burton 10a257f626SPaul Burton #include <common.h> 11a257f626SPaul Burton #include <asm/io.h> 12a257f626SPaul Burton 13a257f626SPaul Burton #define SIO_CONF_PORT 0x3f0 14a257f626SPaul Burton #define SIO_DATA_PORT 0x3f1 15a257f626SPaul Burton 16a257f626SPaul Burton enum sio_conf_key { 17a257f626SPaul Burton SIOCONF_DEVNUM = 0x07, 18a257f626SPaul Burton SIOCONF_ACTIVATE = 0x30, 19a257f626SPaul Burton SIOCONF_ENTER_SETUP = 0x55, 20a257f626SPaul Burton SIOCONF_BASE_HIGH = 0x60, 21a257f626SPaul Burton SIOCONF_BASE_LOW = 0x61, 22a257f626SPaul Burton SIOCONF_PRIMARY_INT = 0x70, 23a257f626SPaul Burton SIOCONF_EXIT_SETUP = 0xaa, 24a257f626SPaul Burton SIOCONF_MODE = 0xf0, 25a257f626SPaul Burton }; 26a257f626SPaul Burton 27a257f626SPaul Burton static struct { 28a257f626SPaul Burton u8 key; 29a257f626SPaul Burton u8 data; 30a257f626SPaul Burton } sio_config[] = { 31a257f626SPaul Burton /* tty0 */ 32a257f626SPaul Burton { SIOCONF_DEVNUM, 0x04 }, 33a257f626SPaul Burton { SIOCONF_BASE_HIGH, 0x03 }, 34a257f626SPaul Burton { SIOCONF_BASE_LOW, 0xf8 }, 35a257f626SPaul Burton { SIOCONF_MODE, 0x02 }, 36a257f626SPaul Burton { SIOCONF_PRIMARY_INT, 0x04 }, 37a257f626SPaul Burton { SIOCONF_ACTIVATE, 0x01 }, 38a257f626SPaul Burton 39a257f626SPaul Burton /* tty1 */ 40a257f626SPaul Burton { SIOCONF_DEVNUM, 0x05 }, 41a257f626SPaul Burton { SIOCONF_BASE_HIGH, 0x02 }, 42a257f626SPaul Burton { SIOCONF_BASE_LOW, 0xf8 }, 43a257f626SPaul Burton { SIOCONF_MODE, 0x02 }, 44a257f626SPaul Burton { SIOCONF_PRIMARY_INT, 0x03 }, 45a257f626SPaul Burton { SIOCONF_ACTIVATE, 0x01 }, 46a257f626SPaul Burton }; 47a257f626SPaul Burton 4891ec615eSPaul Burton void malta_superio_init(void) 49a257f626SPaul Burton { 50a257f626SPaul Burton unsigned i; 51a257f626SPaul Burton 52a257f626SPaul Burton /* enter config state */ 5391ec615eSPaul Burton outb(SIOCONF_ENTER_SETUP, SIO_CONF_PORT); 54a257f626SPaul Burton 55a257f626SPaul Burton /* configure peripherals */ 56a257f626SPaul Burton for (i = 0; i < ARRAY_SIZE(sio_config); i++) { 5791ec615eSPaul Burton outb(sio_config[i].key, SIO_CONF_PORT); 5891ec615eSPaul Burton outb(sio_config[i].data, SIO_DATA_PORT); 59a257f626SPaul Burton } 60a257f626SPaul Burton 61a257f626SPaul Burton /* exit config state */ 6291ec615eSPaul Burton outb(SIOCONF_EXIT_SETUP, SIO_CONF_PORT); 63a257f626SPaul Burton } 64