Commit | Line | Data |
---|---|---|
addff0fa MV |
1 | /* |
2 | * linux/drivers/pcmcia/pxa2xx_vpac270.c | |
3 | * | |
4 | * Driver for Voipac PXA270 PCMCIA and CF sockets | |
5 | * | |
9ed3fbf1 | 6 | * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com> |
addff0fa MV |
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 | ||
158f1e95 | 14 | #include <linux/gpio.h> |
addff0fa MV |
15 | #include <linux/module.h> |
16 | #include <linux/platform_device.h> | |
17 | ||
18 | #include <asm/mach-types.h> | |
19 | ||
50ac01fb | 20 | #include <asm/gpio.h> |
addff0fa MV |
21 | #include <mach/vpac270.h> |
22 | ||
23 | #include "soc_common.h" | |
24 | ||
e27af7ed | 25 | static struct gpio vpac270_pcmcia_gpios[] = { |
e27af7ed MV |
26 | { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" }, |
27 | { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" }, | |
28 | }; | |
29 | ||
30 | static struct gpio vpac270_cf_gpios[] = { | |
e27af7ed MV |
31 | { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" }, |
32 | }; | |
33 | ||
addff0fa MV |
34 | static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
35 | { | |
36 | int ret; | |
37 | ||
38 | if (skt->nr == 0) { | |
e27af7ed MV |
39 | ret = gpio_request_array(vpac270_pcmcia_gpios, |
40 | ARRAY_SIZE(vpac270_pcmcia_gpios)); | |
addff0fa | 41 | |
a9bb5a4b RK |
42 | skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD; |
43 | skt->stat[SOC_STAT_CD].name = "PCMCIA CD"; | |
44 | skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY; | |
45 | skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; | |
addff0fa | 46 | } else { |
e27af7ed MV |
47 | ret = gpio_request_array(vpac270_cf_gpios, |
48 | ARRAY_SIZE(vpac270_cf_gpios)); | |
addff0fa | 49 | |
a9bb5a4b RK |
50 | skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD; |
51 | skt->stat[SOC_STAT_CD].name = "CF CD"; | |
52 | skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY; | |
53 | skt->stat[SOC_STAT_RDY].name = "CF Ready"; | |
addff0fa | 54 | } |
e27af7ed MV |
55 | |
56 | return ret; | |
addff0fa MV |
57 | } |
58 | ||
59 | static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
60 | { | |
e27af7ed | 61 | if (skt->nr == 0) |
512b7938 | 62 | gpio_free_array(vpac270_pcmcia_gpios, |
e27af7ed MV |
63 | ARRAY_SIZE(vpac270_pcmcia_gpios)); |
64 | else | |
512b7938 | 65 | gpio_free_array(vpac270_cf_gpios, |
e27af7ed | 66 | ARRAY_SIZE(vpac270_cf_gpios)); |
addff0fa MV |
67 | } |
68 | ||
69 | static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
70 | struct pcmcia_state *state) | |
71 | { | |
addff0fa MV |
72 | state->vs_3v = 1; |
73 | state->vs_Xv = 0; | |
74 | } | |
75 | ||
76 | static int | |
77 | vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
78 | const socket_state_t *state) | |
79 | { | |
80 | if (skt->nr == 0) { | |
81 | gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET, | |
82 | (state->flags & SS_RESET)); | |
83 | gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN, | |
84 | !(state->Vcc == 33 || state->Vcc == 50)); | |
85 | } else { | |
86 | gpio_set_value(GPIO16_VPAC270_CF_RESET, | |
87 | (state->flags & SS_RESET)); | |
88 | } | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
addff0fa MV |
93 | static struct pcmcia_low_level vpac270_pcmcia_ops = { |
94 | .owner = THIS_MODULE, | |
95 | ||
96 | .first = 0, | |
97 | .nr = 2, | |
98 | ||
99 | .hw_init = vpac270_pcmcia_hw_init, | |
100 | .hw_shutdown = vpac270_pcmcia_hw_shutdown, | |
101 | ||
102 | .socket_state = vpac270_pcmcia_socket_state, | |
103 | .configure_socket = vpac270_pcmcia_configure_socket, | |
addff0fa MV |
104 | }; |
105 | ||
106 | static struct platform_device *vpac270_pcmcia_device; | |
107 | ||
108 | static int __init vpac270_pcmcia_init(void) | |
109 | { | |
110 | int ret; | |
111 | ||
112 | if (!machine_is_vpac270()) | |
113 | return -ENODEV; | |
114 | ||
115 | vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | |
116 | if (!vpac270_pcmcia_device) | |
117 | return -ENOMEM; | |
118 | ||
119 | ret = platform_device_add_data(vpac270_pcmcia_device, | |
120 | &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops)); | |
121 | ||
122 | if (!ret) | |
123 | ret = platform_device_add(vpac270_pcmcia_device); | |
124 | ||
125 | if (ret) | |
126 | platform_device_put(vpac270_pcmcia_device); | |
127 | ||
128 | return ret; | |
129 | } | |
130 | ||
131 | static void __exit vpac270_pcmcia_exit(void) | |
132 | { | |
133 | platform_device_unregister(vpac270_pcmcia_device); | |
134 | } | |
135 | ||
136 | module_init(vpac270_pcmcia_init); | |
137 | module_exit(vpac270_pcmcia_exit); | |
138 | ||
139 | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); | |
140 | MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270"); | |
141 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | |
142 | MODULE_LICENSE("GPL"); |