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1/*
2 * linux/drivers/pcmcia/pxa2xx_vpac270.c
3 *
4 * Driver for Voipac PXA270 PCMCIA and CF sockets
5 *
6 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/gpio.h>
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 gpio vpac270_pcmcia_gpios[] = {
26 { GPIO84_VPAC270_PCMCIA_CD, GPIOF_IN, "PCMCIA Card Detect" },
27 { GPIO35_VPAC270_PCMCIA_RDY, GPIOF_IN, "PCMCIA Ready" },
28 { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" },
29 { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" },
30};
31
32static struct gpio vpac270_cf_gpios[] = {
33 { GPIO17_VPAC270_CF_CD, GPIOF_IN, "CF Card Detect" },
34 { GPIO12_VPAC270_CF_RDY, GPIOF_IN, "CF Ready" },
35 { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" },
36};
37
38static struct pcmcia_irqs cd_irqs[] = {
39 {
40 .sock = 0,
41 .irq = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD),
42 .str = "PCMCIA CD"
43 },
44 {
45 .sock = 1,
46 .irq = IRQ_GPIO(GPIO17_VPAC270_CF_CD),
47 .str = "CF CD"
48 },
49};
50
51static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
52{
53 int ret;
54
55 if (skt->nr == 0) {
56 ret = gpio_request_array(vpac270_pcmcia_gpios,
57 ARRAY_SIZE(vpac270_pcmcia_gpios));
58
59 skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);
60
61 if (!ret)
62 ret = soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
63 } else {
64 ret = gpio_request_array(vpac270_cf_gpios,
65 ARRAY_SIZE(vpac270_cf_gpios));
66
67 skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);
68
69 if (!ret)
70 ret = soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
71 }
72
73 return ret;
74}
75
76static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
77{
78 if (skt->nr == 0)
79 gpio_free_array(vpac270_pcmcia_gpios,
80 ARRAY_SIZE(vpac270_pcmcia_gpios));
81 else
82 gpio_free_array(vpac270_cf_gpios,
83 ARRAY_SIZE(vpac270_cf_gpios));
84}
85
86static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
87 struct pcmcia_state *state)
88{
89 if (skt->nr == 0) {
90 state->detect = !gpio_get_value(GPIO84_VPAC270_PCMCIA_CD);
91 state->ready = !!gpio_get_value(GPIO35_VPAC270_PCMCIA_RDY);
92 } else {
93 state->detect = !gpio_get_value(GPIO17_VPAC270_CF_CD);
94 state->ready = !!gpio_get_value(GPIO12_VPAC270_CF_RDY);
95 }
96 state->bvd1 = 1;
97 state->bvd2 = 1;
98 state->wrprot = 0;
99 state->vs_3v = 1;
100 state->vs_Xv = 0;
101}
102
103static int
104vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
105 const socket_state_t *state)
106{
107 if (skt->nr == 0) {
108 gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
109 (state->flags & SS_RESET));
110 gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
111 !(state->Vcc == 33 || state->Vcc == 50));
112 } else {
113 gpio_set_value(GPIO16_VPAC270_CF_RESET,
114 (state->flags & SS_RESET));
115 }
116
117 return 0;
118}
119
120static void vpac270_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
121{
122}
123
124static void vpac270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
125{
126}
127
128static struct pcmcia_low_level vpac270_pcmcia_ops = {
129 .owner = THIS_MODULE,
130
131 .first = 0,
132 .nr = 2,
133
134 .hw_init = vpac270_pcmcia_hw_init,
135 .hw_shutdown = vpac270_pcmcia_hw_shutdown,
136
137 .socket_state = vpac270_pcmcia_socket_state,
138 .configure_socket = vpac270_pcmcia_configure_socket,
139
140 .socket_init = vpac270_pcmcia_socket_init,
141 .socket_suspend = vpac270_pcmcia_socket_suspend,
142};
143
144static struct platform_device *vpac270_pcmcia_device;
145
146static int __init vpac270_pcmcia_init(void)
147{
148 int ret;
149
150 if (!machine_is_vpac270())
151 return -ENODEV;
152
153 vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
154 if (!vpac270_pcmcia_device)
155 return -ENOMEM;
156
157 ret = platform_device_add_data(vpac270_pcmcia_device,
158 &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
159
160 if (!ret)
161 ret = platform_device_add(vpac270_pcmcia_device);
162
163 if (ret)
164 platform_device_put(vpac270_pcmcia_device);
165
166 return ret;
167}
168
169static void __exit vpac270_pcmcia_exit(void)
170{
171 platform_device_unregister(vpac270_pcmcia_device);
172}
173
174module_init(vpac270_pcmcia_init);
175module_exit(vpac270_pcmcia_exit);
176
177MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
178MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
179MODULE_ALIAS("platform:pxa2xx-pcmcia");
180MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/drivers/pcmcia/pxa2xx_vpac270.c
4 *
5 * Driver for Voipac PXA270 PCMCIA and CF sockets
6 *
7 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
8 */
9
10#include <linux/gpio.h>
11#include <linux/module.h>
12#include <linux/platform_device.h>
13
14#include <asm/mach-types.h>
15
16#include <mach/vpac270.h>
17
18#include "soc_common.h"
19
20static struct gpio vpac270_pcmcia_gpios[] = {
21 { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" },
22 { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" },
23};
24
25static struct gpio vpac270_cf_gpios[] = {
26 { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" },
27};
28
29static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
30{
31 int ret;
32
33 if (skt->nr == 0) {
34 ret = gpio_request_array(vpac270_pcmcia_gpios,
35 ARRAY_SIZE(vpac270_pcmcia_gpios));
36
37 skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD;
38 skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
39 skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY;
40 skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
41 } else {
42 ret = gpio_request_array(vpac270_cf_gpios,
43 ARRAY_SIZE(vpac270_cf_gpios));
44
45 skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD;
46 skt->stat[SOC_STAT_CD].name = "CF CD";
47 skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY;
48 skt->stat[SOC_STAT_RDY].name = "CF Ready";
49 }
50
51 return ret;
52}
53
54static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
55{
56 if (skt->nr == 0)
57 gpio_free_array(vpac270_pcmcia_gpios,
58 ARRAY_SIZE(vpac270_pcmcia_gpios));
59 else
60 gpio_free_array(vpac270_cf_gpios,
61 ARRAY_SIZE(vpac270_cf_gpios));
62}
63
64static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
65 struct pcmcia_state *state)
66{
67 state->vs_3v = 1;
68 state->vs_Xv = 0;
69}
70
71static int
72vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
73 const socket_state_t *state)
74{
75 if (skt->nr == 0) {
76 gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
77 (state->flags & SS_RESET));
78 gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
79 !(state->Vcc == 33 || state->Vcc == 50));
80 } else {
81 gpio_set_value(GPIO16_VPAC270_CF_RESET,
82 (state->flags & SS_RESET));
83 }
84
85 return 0;
86}
87
88static struct pcmcia_low_level vpac270_pcmcia_ops = {
89 .owner = THIS_MODULE,
90
91 .first = 0,
92 .nr = 2,
93
94 .hw_init = vpac270_pcmcia_hw_init,
95 .hw_shutdown = vpac270_pcmcia_hw_shutdown,
96
97 .socket_state = vpac270_pcmcia_socket_state,
98 .configure_socket = vpac270_pcmcia_configure_socket,
99};
100
101static struct platform_device *vpac270_pcmcia_device;
102
103static int __init vpac270_pcmcia_init(void)
104{
105 int ret;
106
107 if (!machine_is_vpac270())
108 return -ENODEV;
109
110 vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
111 if (!vpac270_pcmcia_device)
112 return -ENOMEM;
113
114 ret = platform_device_add_data(vpac270_pcmcia_device,
115 &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
116
117 if (!ret)
118 ret = platform_device_add(vpac270_pcmcia_device);
119
120 if (ret)
121 platform_device_put(vpac270_pcmcia_device);
122
123 return ret;
124}
125
126static void __exit vpac270_pcmcia_exit(void)
127{
128 platform_device_unregister(vpac270_pcmcia_device);
129}
130
131module_init(vpac270_pcmcia_init);
132module_exit(vpac270_pcmcia_exit);
133
134MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
135MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
136MODULE_ALIAS("platform:pxa2xx-pcmcia");
137MODULE_LICENSE("GPL");