1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/drivers/pcmcia/pxa2xx_palmtx.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Driver for Palm T|X PCMCIA
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/module.h>
11*4882a593Smuzhiyun #include <linux/platform_device.h>
12*4882a593Smuzhiyun #include <linux/gpio.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <asm/mach-types.h>
15*4882a593Smuzhiyun #include <mach/palmtx.h>
16*4882a593Smuzhiyun #include "soc_common.h"
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun static struct gpio palmtx_pcmcia_gpios[] = {
19*4882a593Smuzhiyun { GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" },
20*4882a593Smuzhiyun { GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" },
21*4882a593Smuzhiyun { GPIO_NR_PALMTX_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" },
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
palmtx_pcmcia_hw_init(struct soc_pcmcia_socket * skt)24*4882a593Smuzhiyun static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun int ret;
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun ret = gpio_request_array(palmtx_pcmcia_gpios,
29*4882a593Smuzhiyun ARRAY_SIZE(palmtx_pcmcia_gpios));
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTX_PCMCIA_READY;
32*4882a593Smuzhiyun skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun return ret;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket * skt)37*4882a593Smuzhiyun static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
palmtx_pcmcia_socket_state(struct soc_pcmcia_socket * skt,struct pcmcia_state * state)42*4882a593Smuzhiyun static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
43*4882a593Smuzhiyun struct pcmcia_state *state)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun state->detect = 1; /* always inserted */
46*4882a593Smuzhiyun state->vs_3v = 1;
47*4882a593Smuzhiyun state->vs_Xv = 0;
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun static int
palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket * skt,const socket_state_t * state)51*4882a593Smuzhiyun palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
52*4882a593Smuzhiyun const socket_state_t *state)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
55*4882a593Smuzhiyun gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
56*4882a593Smuzhiyun gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
57*4882a593Smuzhiyun !!(state->flags & SS_RESET));
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun return 0;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun static struct pcmcia_low_level palmtx_pcmcia_ops = {
63*4882a593Smuzhiyun .owner = THIS_MODULE,
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun .first = 0,
66*4882a593Smuzhiyun .nr = 1,
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun .hw_init = palmtx_pcmcia_hw_init,
69*4882a593Smuzhiyun .hw_shutdown = palmtx_pcmcia_hw_shutdown,
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun .socket_state = palmtx_pcmcia_socket_state,
72*4882a593Smuzhiyun .configure_socket = palmtx_pcmcia_configure_socket,
73*4882a593Smuzhiyun };
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun static struct platform_device *palmtx_pcmcia_device;
76*4882a593Smuzhiyun
palmtx_pcmcia_init(void)77*4882a593Smuzhiyun static int __init palmtx_pcmcia_init(void)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun int ret;
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun if (!machine_is_palmtx())
82*4882a593Smuzhiyun return -ENODEV;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
85*4882a593Smuzhiyun if (!palmtx_pcmcia_device)
86*4882a593Smuzhiyun return -ENOMEM;
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
89*4882a593Smuzhiyun sizeof(palmtx_pcmcia_ops));
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun if (!ret)
92*4882a593Smuzhiyun ret = platform_device_add(palmtx_pcmcia_device);
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun if (ret)
95*4882a593Smuzhiyun platform_device_put(palmtx_pcmcia_device);
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun return ret;
98*4882a593Smuzhiyun }
99*4882a593Smuzhiyun
palmtx_pcmcia_exit(void)100*4882a593Smuzhiyun static void __exit palmtx_pcmcia_exit(void)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun platform_device_unregister(palmtx_pcmcia_device);
103*4882a593Smuzhiyun }
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun module_init(palmtx_pcmcia_init);
106*4882a593Smuzhiyun module_exit(palmtx_pcmcia_exit);
107*4882a593Smuzhiyun
108*4882a593Smuzhiyun MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
109*4882a593Smuzhiyun MODULE_DESCRIPTION("PCMCIA support for Palm T|X");
110*4882a593Smuzhiyun MODULE_ALIAS("platform:pxa2xx-pcmcia");
111*4882a593Smuzhiyun MODULE_LICENSE("GPL");
112