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
malta_superio_init(void)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 }
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