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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-07-13 07:05:49 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-13 07:05:49 -0400
commit044e5f45e4ad890d03bd1e8bb44c634397cac24d (patch)
treea6063f77bd719d933823915d2273eaadb6331611 /drivers/pcmcia/pxa2xx_palmtx.c
parentf0006314d37639714da9658cf4ff3f1f9f420764 (diff)
parentfaf64ed4968e354624f330c6da6c1ce8b05a0713 (diff)
Merge branch 'pxa' into devel
Conflicts: arch/arm/configs/em_x270_defconfig arch/arm/configs/xm_x270_defconfig
Diffstat (limited to 'drivers/pcmcia/pxa2xx_palmtx.c')
-rw-r--r--drivers/pcmcia/pxa2xx_palmtx.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/pcmcia/pxa2xx_palmtx.c b/drivers/pcmcia/pxa2xx_palmtx.c
new file mode 100644
index 000000000000..4abde190c1f5
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_palmtx.c
@@ -0,0 +1,118 @@
1/*
2 * linux/drivers/pcmcia/pxa2xx_palmtx.c
3 *
4 * Driver for Palm T|X PCMCIA
5 *
6 * Copyright (C) 2007-2008 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/module.h>
15#include <linux/platform_device.h>
16
17#include <asm/mach-types.h>
18
19#include <asm/arch/gpio.h>
20#include <asm/arch/palmtx.h>
21
22#include "soc_common.h"
23
24static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
25{
26 skt->irq = IRQ_GPIO(GPIO_NR_PALMTX_PCMCIA_READY);
27 return 0;
28}
29
30static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
31{
32}
33
34static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
35 struct pcmcia_state *state)
36{
37 state->detect = 1; /* always inserted */
38 state->ready = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY);
39 state->bvd1 = 1;
40 state->bvd2 = 1;
41 state->wrprot = 0;
42 state->vs_3v = 1;
43 state->vs_Xv = 0;
44}
45
46static int
47palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
48 const socket_state_t *state)
49{
50 gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
51 gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
52 gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
53 !!(state->flags & SS_RESET));
54
55 return 0;
56}
57
58static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
59{
60}
61
62static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
63{
64}
65
66static struct pcmcia_low_level palmtx_pcmcia_ops = {
67 .owner = THIS_MODULE,
68
69 .first = 0,
70 .nr = 1,
71
72 .hw_init = palmtx_pcmcia_hw_init,
73 .hw_shutdown = palmtx_pcmcia_hw_shutdown,
74
75 .socket_state = palmtx_pcmcia_socket_state,
76 .configure_socket = palmtx_pcmcia_configure_socket,
77
78 .socket_init = palmtx_pcmcia_socket_init,
79 .socket_suspend = palmtx_pcmcia_socket_suspend,
80};
81
82static struct platform_device *palmtx_pcmcia_device;
83
84static int __init palmtx_pcmcia_init(void)
85{
86 int ret;
87
88 if (!machine_is_palmtx())
89 return -ENODEV;
90
91 palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
92 if (!palmtx_pcmcia_device)
93 return -ENOMEM;
94
95 ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
96 sizeof(palmtx_pcmcia_ops));
97
98 if (!ret)
99 ret = platform_device_add(palmtx_pcmcia_device);
100
101 if (ret)
102 platform_device_put(palmtx_pcmcia_device);
103
104 return ret;
105}
106
107static void __exit palmtx_pcmcia_exit(void)
108{
109 platform_device_unregister(palmtx_pcmcia_device);
110}
111
112fs_initcall(palmtx_pcmcia_init);
113module_exit(palmtx_pcmcia_exit);
114
115MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
116MODULE_DESCRIPTION("PCMCIA support for Palm T|X");
117MODULE_ALIAS("platform:pxa2xx-pcmcia");
118MODULE_LICENSE("GPL");