2 * linux/drivers/pcmcia/pxa/pxa_cm_x270.c
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * Compulab Ltd., 2003, 2007, 2008
13 #include <linux/platform_device.h>
14 #include <linux/irq.h>
15 #include <linux/delay.h>
16 #include <linux/gpio.h>
17 #include <linux/export.h>
19 #include "soc_common.h"
21 #define GPIO_PCMCIA_S0_CD_VALID (84)
22 #define GPIO_PCMCIA_S0_RDYINT (82)
23 #define GPIO_PCMCIA_RESET (53)
25 static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
27 int ret = gpio_request(GPIO_PCMCIA_RESET, "PCCard reset");
30 gpio_direction_output(GPIO_PCMCIA_RESET, 0);
32 skt->stat[SOC_STAT_CD].gpio = GPIO_PCMCIA_S0_CD_VALID;
33 skt->stat[SOC_STAT_CD].name = "PCMCIA0 CD";
34 skt->stat[SOC_STAT_RDY].gpio = GPIO_PCMCIA_S0_RDYINT;
35 skt->stat[SOC_STAT_RDY].name = "PCMCIA0 RDY";
40 static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt)
42 gpio_free(GPIO_PCMCIA_RESET);
46 static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
47 struct pcmcia_state *state)
54 static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
55 const socket_state_t *state)
59 if (state->flags & SS_RESET) {
60 gpio_set_value(GPIO_PCMCIA_RESET, 1);
62 gpio_set_value(GPIO_PCMCIA_RESET, 0);
70 static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = {
72 .hw_init = cmx270_pcmcia_hw_init,
73 .hw_shutdown = cmx270_pcmcia_shutdown,
74 .socket_state = cmx270_pcmcia_socket_state,
75 .configure_socket = cmx270_pcmcia_configure_socket,
79 static struct platform_device *cmx270_pcmcia_device;
81 int __init cmx270_pcmcia_init(void)
85 cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
87 if (!cmx270_pcmcia_device)
90 ret = platform_device_add_data(cmx270_pcmcia_device, &cmx270_pcmcia_ops,
91 sizeof(cmx270_pcmcia_ops));
94 printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
95 ret = platform_device_add(cmx270_pcmcia_device);
99 platform_device_put(cmx270_pcmcia_device);
104 void __exit cmx270_pcmcia_exit(void)
106 platform_device_unregister(cmx270_pcmcia_device);