blob: 55627eccee8e7a9f9248ddff852276e4b6de3053 [file] [log] [blame]
Marek Vasutaddff0f2010-03-10 04:16:28 +01001/*
2 * linux/drivers/pcmcia/pxa2xx_vpac270.c
3 *
4 * Driver for Voipac PXA270 PCMCIA and CF sockets
5 *
6 * Copyright (C) 2010
7 * Marek Vasut <marek.vasut@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15#include <linux/module.h>
16#include <linux/platform_device.h>
17
18#include <asm/mach-types.h>
19
20#include <mach/gpio.h>
21#include <mach/vpac270.h>
22
23#include "soc_common.h"
24
25static struct pcmcia_irqs cd_irqs[] = {
26 {
27 .sock = 0,
28 .irq = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD),
29 .str = "PCMCIA CD"
30 },
31 {
32 .sock = 1,
33 .irq = IRQ_GPIO(GPIO17_VPAC270_CF_CD),
34 .str = "CF CD"
35 },
36};
37
38static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
39{
40 int ret;
41
42 if (skt->nr == 0) {
43 ret = gpio_request(GPIO84_VPAC270_PCMCIA_CD, "PCMCIA CD");
44 if (ret)
45 goto err1;
46 ret = gpio_direction_input(GPIO84_VPAC270_PCMCIA_CD);
47 if (ret)
48 goto err2;
49
50 ret = gpio_request(GPIO35_VPAC270_PCMCIA_RDY, "PCMCIA RDY");
51 if (ret)
52 goto err2;
53 ret = gpio_direction_input(GPIO35_VPAC270_PCMCIA_RDY);
54 if (ret)
55 goto err3;
56
57 ret = gpio_request(GPIO107_VPAC270_PCMCIA_PPEN, "PCMCIA PPEN");
58 if (ret)
59 goto err3;
60 ret = gpio_direction_output(GPIO107_VPAC270_PCMCIA_PPEN, 0);
61 if (ret)
62 goto err4;
63
64 ret = gpio_request(GPIO11_VPAC270_PCMCIA_RESET, "PCMCIA RESET");
65 if (ret)
66 goto err4;
67 ret = gpio_direction_output(GPIO11_VPAC270_PCMCIA_RESET, 0);
68 if (ret)
69 goto err5;
70
71 skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);
72
73 return soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
74
75err5:
76 gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
77err4:
78 gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
79err3:
80 gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
81err2:
82 gpio_free(GPIO84_VPAC270_PCMCIA_CD);
83err1:
84 return ret;
85
86 } else {
87 ret = gpio_request(GPIO17_VPAC270_CF_CD, "CF CD");
88 if (ret)
89 goto err6;
90 ret = gpio_direction_input(GPIO17_VPAC270_CF_CD);
91 if (ret)
92 goto err7;
93
94 ret = gpio_request(GPIO12_VPAC270_CF_RDY, "CF RDY");
95 if (ret)
96 goto err7;
97 ret = gpio_direction_input(GPIO12_VPAC270_CF_RDY);
98 if (ret)
99 goto err8;
100
101 ret = gpio_request(GPIO16_VPAC270_CF_RESET, "CF RESET");
102 if (ret)
103 goto err8;
104 ret = gpio_direction_output(GPIO16_VPAC270_CF_RESET, 0);
105 if (ret)
106 goto err9;
107
108 skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);
109
110 return soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
111
112err9:
113 gpio_free(GPIO16_VPAC270_CF_RESET);
114err8:
115 gpio_free(GPIO12_VPAC270_CF_RDY);
116err7:
117 gpio_free(GPIO17_VPAC270_CF_CD);
118err6:
119 return ret;
120
121 }
122}
123
124static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
125{
126 gpio_free(GPIO11_VPAC270_PCMCIA_RESET);
127 gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);
128 gpio_free(GPIO35_VPAC270_PCMCIA_RDY);
129 gpio_free(GPIO84_VPAC270_PCMCIA_CD);
130 gpio_free(GPIO16_VPAC270_CF_RESET);
131 gpio_free(GPIO12_VPAC270_CF_RDY);
132 gpio_free(GPIO17_VPAC270_CF_CD);
133}
134
135static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
136 struct pcmcia_state *state)
137{
138 if (skt->nr == 0) {
139 state->detect = !gpio_get_value(GPIO84_VPAC270_PCMCIA_CD);
140 state->ready = !!gpio_get_value(GPIO35_VPAC270_PCMCIA_RDY);
141 } else {
142 state->detect = !gpio_get_value(GPIO17_VPAC270_CF_CD);
143 state->ready = !!gpio_get_value(GPIO12_VPAC270_CF_RDY);
144 }
145 state->bvd1 = 1;
146 state->bvd2 = 1;
147 state->wrprot = 0;
148 state->vs_3v = 1;
149 state->vs_Xv = 0;
150}
151
152static int
153vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
154 const socket_state_t *state)
155{
156 if (skt->nr == 0) {
157 gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
158 (state->flags & SS_RESET));
159 gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
160 !(state->Vcc == 33 || state->Vcc == 50));
161 } else {
162 gpio_set_value(GPIO16_VPAC270_CF_RESET,
163 (state->flags & SS_RESET));
164 }
165
166 return 0;
167}
168
169static void vpac270_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
170{
171}
172
173static void vpac270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
174{
175}
176
177static struct pcmcia_low_level vpac270_pcmcia_ops = {
178 .owner = THIS_MODULE,
179
180 .first = 0,
181 .nr = 2,
182
183 .hw_init = vpac270_pcmcia_hw_init,
184 .hw_shutdown = vpac270_pcmcia_hw_shutdown,
185
186 .socket_state = vpac270_pcmcia_socket_state,
187 .configure_socket = vpac270_pcmcia_configure_socket,
188
189 .socket_init = vpac270_pcmcia_socket_init,
190 .socket_suspend = vpac270_pcmcia_socket_suspend,
191};
192
193static struct platform_device *vpac270_pcmcia_device;
194
195static int __init vpac270_pcmcia_init(void)
196{
197 int ret;
198
199 if (!machine_is_vpac270())
200 return -ENODEV;
201
202 vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
203 if (!vpac270_pcmcia_device)
204 return -ENOMEM;
205
206 ret = platform_device_add_data(vpac270_pcmcia_device,
207 &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
208
209 if (!ret)
210 ret = platform_device_add(vpac270_pcmcia_device);
211
212 if (ret)
213 platform_device_put(vpac270_pcmcia_device);
214
215 return ret;
216}
217
218static void __exit vpac270_pcmcia_exit(void)
219{
220 platform_device_unregister(vpac270_pcmcia_device);
221}
222
223module_init(vpac270_pcmcia_init);
224module_exit(vpac270_pcmcia_exit);
225
226MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
227MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
228MODULE_ALIAS("platform:pxa2xx-pcmcia");
229MODULE_LICENSE("GPL");