2 * linux/drivers/pcmcia/pxa2xx_vpac270.c
4 * Driver for Voipac PXA270 PCMCIA and CF sockets
6 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
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.
14 #include <linux/gpio.h>
15 #include <linux/module.h>
16 #include <linux/platform_device.h>
18 #include <asm/mach-types.h>
21 #include <mach/vpac270.h>
23 #include "soc_common.h"
25 static struct gpio vpac270_pcmcia_gpios[] = {
26 { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" },
27 { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" },
30 static struct gpio vpac270_cf_gpios[] = {
31 { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" },
34 static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
39 ret = gpio_request_array(vpac270_pcmcia_gpios,
40 ARRAY_SIZE(vpac270_pcmcia_gpios));
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";
47 ret = gpio_request_array(vpac270_cf_gpios,
48 ARRAY_SIZE(vpac270_cf_gpios));
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";
59 static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
62 gpio_free_array(vpac270_pcmcia_gpios,
63 ARRAY_SIZE(vpac270_pcmcia_gpios));
65 gpio_free_array(vpac270_cf_gpios,
66 ARRAY_SIZE(vpac270_cf_gpios));
69 static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
70 struct pcmcia_state *state)
78 vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
79 const socket_state_t *state)
82 gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
83 (state->flags & SS_RESET));
84 gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
85 !(state->Vcc == 33 || state->Vcc == 50));
87 gpio_set_value(GPIO16_VPAC270_CF_RESET,
88 (state->flags & SS_RESET));
94 static struct pcmcia_low_level vpac270_pcmcia_ops = {
100 .hw_init = vpac270_pcmcia_hw_init,
101 .hw_shutdown = vpac270_pcmcia_hw_shutdown,
103 .socket_state = vpac270_pcmcia_socket_state,
104 .configure_socket = vpac270_pcmcia_configure_socket,
107 static struct platform_device *vpac270_pcmcia_device;
109 static int __init vpac270_pcmcia_init(void)
113 if (!machine_is_vpac270())
116 vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
117 if (!vpac270_pcmcia_device)
120 ret = platform_device_add_data(vpac270_pcmcia_device,
121 &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
124 ret = platform_device_add(vpac270_pcmcia_device);
127 platform_device_put(vpac270_pcmcia_device);
132 static void __exit vpac270_pcmcia_exit(void)
134 platform_device_unregister(vpac270_pcmcia_device);
137 module_init(vpac270_pcmcia_init);
138 module_exit(vpac270_pcmcia_exit);
140 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
141 MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
142 MODULE_ALIAS("platform:pxa2xx-pcmcia");
143 MODULE_LICENSE("GPL");