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Stefan Reinauer1a08f582009-10-28 16:52:48 +00001/*
Uwe Hermann2d2f0c12009-10-28 17:36:11 +00002 * This file is part of the coreboot project.
Stefan Reinauer1a08f582009-10-28 16:52:48 +00003 *
Uwe Hermann2d2f0c12009-10-28 17:36:11 +00004 * Copyright (C) 2009 coresystems GmbH
Stefan Reinauer1a08f582009-10-28 16:52:48 +00005 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
Uwe Hermann2d2f0c12009-10-28 17:36:11 +000017 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Stefan Reinauer1a08f582009-10-28 16:52:48 +000018 */
19
Uwe Hermann2d2f0c12009-10-28 17:36:11 +000020/* RAM driver for the SMSC LPC47M15X Super I/O chip */
21
Stefan Reinauer1a08f582009-10-28 16:52:48 +000022#include <arch/io.h>
23#include <device/device.h>
24#include <device/pnp.h>
25#include <console/console.h>
26#include <device/smbus.h>
27#include <string.h>
28#include <bitops.h>
29#include <uart8250.h>
30#include <pc80/keyboard.h>
31#include <stdlib.h>
32#include "chip.h"
33#include "lpc47m15x.h"
34
35// Forward declarations
36static void enable_dev(device_t dev);
37void lpc47m15x_pnp_set_resources(device_t dev);
38void lpc47m15x_pnp_set_resources(device_t dev);
39void lpc47m15x_pnp_enable_resources(device_t dev);
40void lpc47m15x_pnp_enable(device_t dev);
41static void lpc47m15x_init(device_t dev);
42
43static void pnp_enter_conf_state(device_t dev);
44static void pnp_exit_conf_state(device_t dev);
45static void dump_pnp_device(device_t dev);
46
47
48struct chip_operations superio_smsc_lpc47m15x_ops = {
49 CHIP_NAME("SMSC LPC47M15x/192/997 Super I/O")
50 .enable_dev = enable_dev
51};
52
53static struct device_operations ops = {
54 .read_resources = pnp_read_resources,
55 .set_resources = lpc47m15x_pnp_set_resources,
56 .enable_resources = lpc47m15x_pnp_enable_resources,
57 .enable = lpc47m15x_pnp_enable,
58 .init = lpc47m15x_init,
59};
60
61static struct pnp_info pnp_dev_info[] = {
62 { &ops, LPC47M15X_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
63 { &ops, LPC47M15X_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
64 { &ops, LPC47M15X_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
65 { &ops, LPC47M15X_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
66 { &ops, LPC47M15X_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
67};
68
69static void enable_dev(device_t dev)
70{
71 pnp_enable_devices(dev, &pnp_ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
72}
73
74void lpc47m15x_pnp_set_resources(device_t dev)
75{
76 pnp_enter_conf_state(dev);
77 pnp_set_resources(dev);
78 pnp_exit_conf_state(dev);
79}
80
81void lpc47m15x_pnp_enable_resources(device_t dev)
82{
83 pnp_enter_conf_state(dev);
84 pnp_enable_resources(dev);
85 pnp_exit_conf_state(dev);
86}
87
88void lpc47m15x_pnp_enable(device_t dev)
89{
90 pnp_enter_conf_state(dev);
91 pnp_set_logical_device(dev);
92
93 if(dev->enabled) {
94 pnp_set_enable(dev, 1);
95 }
96 else {
97 pnp_set_enable(dev, 0);
98 }
99 pnp_exit_conf_state(dev);
100}
101
102static void lpc47m15x_init(device_t dev)
103{
104 struct superio_smsc_lpc47m15x_config *conf = dev->chip_info;
105 struct resource *res0, *res1;
106
107 if (!dev->enabled)
108 return;
109
110 switch(dev->path.pnp.device) {
111 case LPC47M15X_SP1:
112 res0 = find_resource(dev, PNP_IDX_IO0);
113 init_uart8250(res0->base, &conf->com1);
114 break;
115
116 case LPC47M15X_SP2:
117 res0 = find_resource(dev, PNP_IDX_IO0);
118 init_uart8250(res0->base, &conf->com2);
119 break;
120
121 case LPC47M15X_KBC:
122 res0 = find_resource(dev, PNP_IDX_IO0);
123 res1 = find_resource(dev, PNP_IDX_IO1);
124 pc_keyboard_init(&conf->keyboard);
125 break;
126 }
127}
128
129static void pnp_enter_conf_state(device_t dev)
130{
131 outb(0x55, dev->path.pnp.port);
132}
133
134static void pnp_exit_conf_state(device_t dev)
135{
136 outb(0xaa, dev->path.pnp.port);
137}
138