diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/pcmcia/Kconfig | 2 | ||||
-rw-r--r-- | drivers/pcmcia/Makefile | 1 | ||||
-rw-r--r-- | drivers/pcmcia/pxa2xx_e740.c | 176 |
3 files changed, 178 insertions, 1 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index 222904411a13..276473543982 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig | |||
@@ -217,7 +217,7 @@ config PCMCIA_PXA2XX | |||
217 | depends on ARM && ARCH_PXA && PCMCIA | 217 | depends on ARM && ARCH_PXA && PCMCIA |
218 | depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \ | 218 | depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \ |
219 | || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \ | 219 | || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \ |
220 | || ARCH_VIPER) | 220 | || ARCH_VIPER || ARCH_PXA_ESERIES) |
221 | help | 221 | help |
222 | Say Y here to include support for the PXA2xx PCMCIA controller | 222 | Say Y here to include support for the PXA2xx PCMCIA controller |
223 | 223 | ||
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 238629ad7f7c..bbac46327227 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile | |||
@@ -72,5 +72,6 @@ pxa2xx-obj-$(CONFIG_ARCH_VIPER) += pxa2xx_viper.o | |||
72 | pxa2xx-obj-$(CONFIG_TRIZEPS_PCMCIA) += pxa2xx_trizeps4.o | 72 | pxa2xx-obj-$(CONFIG_TRIZEPS_PCMCIA) += pxa2xx_trizeps4.o |
73 | pxa2xx-obj-$(CONFIG_MACH_PALMTX) += pxa2xx_palmtx.o | 73 | pxa2xx-obj-$(CONFIG_MACH_PALMTX) += pxa2xx_palmtx.o |
74 | pxa2xx-obj-$(CONFIG_MACH_PALMLD) += pxa2xx_palmld.o | 74 | pxa2xx-obj-$(CONFIG_MACH_PALMLD) += pxa2xx_palmld.o |
75 | pxa2xx-obj-$(CONFIG_MACH_E740) += pxa2xx_e740.o | ||
75 | 76 | ||
76 | obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_core.o $(pxa2xx-obj-y) | 77 | obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_core.o $(pxa2xx-obj-y) |
diff --git a/drivers/pcmcia/pxa2xx_e740.c b/drivers/pcmcia/pxa2xx_e740.c new file mode 100644 index 000000000000..f663a011bf4a --- /dev/null +++ b/drivers/pcmcia/pxa2xx_e740.c | |||
@@ -0,0 +1,176 @@ | |||
1 | /* | ||
2 | * Toshiba e740 PCMCIA specific routines. | ||
3 | * | ||
4 | * (c) 2004 Ian Molton <spyro@f2s.com> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | |||
11 | #include <linux/init.h> | ||
12 | #include <linux/module.h> | ||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/errno.h> | ||
15 | #include <linux/gpio.h> | ||
16 | #include <linux/interrupt.h> | ||
17 | #include <linux/platform_device.h> | ||
18 | |||
19 | #include <mach/hardware.h> | ||
20 | #include <mach/pxa-regs.h> | ||
21 | #include <mach/eseries-gpio.h> | ||
22 | |||
23 | #include <asm/irq.h> | ||
24 | #include <asm/mach-types.h> | ||
25 | |||
26 | #include "soc_common.h" | ||
27 | |||
28 | static struct pcmcia_irqs cd_irqs[] = { | ||
29 | { | ||
30 | .sock = 0, | ||
31 | .irq = IRQ_GPIO(GPIO_E740_PCMCIA_CD0), | ||
32 | .str = "CF card detect" | ||
33 | }, | ||
34 | { | ||
35 | .sock = 1, | ||
36 | .irq = IRQ_GPIO(GPIO_E740_PCMCIA_CD1), | ||
37 | .str = "Wifi switch" | ||
38 | }, | ||
39 | }; | ||
40 | |||
41 | static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | ||
42 | { | ||
43 | skt->irq = skt->nr == 0 ? IRQ_GPIO(GPIO_E740_PCMCIA_RDY0) : | ||
44 | IRQ_GPIO(GPIO_E740_PCMCIA_RDY1); | ||
45 | |||
46 | return soc_pcmcia_request_irqs(skt, &cd_irqs[skt->nr], 1); | ||
47 | } | ||
48 | |||
49 | /* | ||
50 | * Release all resources. | ||
51 | */ | ||
52 | static void e740_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | ||
53 | { | ||
54 | soc_pcmcia_free_irqs(skt, &cd_irqs[skt->nr], 1); | ||
55 | } | ||
56 | |||
57 | static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | ||
58 | struct pcmcia_state *state) | ||
59 | { | ||
60 | if (skt->nr == 0) { | ||
61 | state->detect = gpio_get_value(GPIO_E740_PCMCIA_CD0) ? 0 : 1; | ||
62 | state->ready = gpio_get_value(GPIO_E740_PCMCIA_RDY0) ? 1 : 0; | ||
63 | } else { | ||
64 | state->detect = gpio_get_value(GPIO_E740_PCMCIA_CD1) ? 0 : 1; | ||
65 | state->ready = gpio_get_value(GPIO_E740_PCMCIA_RDY1) ? 1 : 0; | ||
66 | } | ||
67 | |||
68 | state->vs_3v = 1; | ||
69 | state->bvd1 = 1; | ||
70 | state->bvd2 = 1; | ||
71 | state->wrprot = 0; | ||
72 | state->vs_Xv = 0; | ||
73 | } | ||
74 | |||
75 | static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | ||
76 | const socket_state_t *state) | ||
77 | { | ||
78 | if (state->flags & SS_RESET) { | ||
79 | if (skt->nr == 0) | ||
80 | gpio_set_value(GPIO_E740_PCMCIA_RST0, 1); | ||
81 | else | ||
82 | gpio_set_value(GPIO_E740_PCMCIA_RST1, 1); | ||
83 | } else { | ||
84 | if (skt->nr == 0) | ||
85 | gpio_set_value(GPIO_E740_PCMCIA_RST0, 0); | ||
86 | else | ||
87 | gpio_set_value(GPIO_E740_PCMCIA_RST1, 0); | ||
88 | } | ||
89 | |||
90 | switch (state->Vcc) { | ||
91 | case 0: /* Socket off */ | ||
92 | if (skt->nr == 0) | ||
93 | gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0); | ||
94 | else | ||
95 | gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1); | ||
96 | break; | ||
97 | case 50: | ||
98 | case 33: /* socket on */ | ||
99 | if (skt->nr == 0) | ||
100 | gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1); | ||
101 | else | ||
102 | gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0); | ||
103 | break; | ||
104 | default: | ||
105 | printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc); | ||
106 | } | ||
107 | |||
108 | return 0; | ||
109 | } | ||
110 | |||
111 | /* | ||
112 | * Enable card status IRQs on (re-)initialisation. This can | ||
113 | * be called at initialisation, power management event, or | ||
114 | * pcmcia event. | ||
115 | */ | ||
116 | static void e740_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | ||
117 | { | ||
118 | soc_pcmcia_enable_irqs(skt, cd_irqs, ARRAY_SIZE(cd_irqs)); | ||
119 | } | ||
120 | |||
121 | /* | ||
122 | * Disable card status IRQs on suspend. | ||
123 | */ | ||
124 | static void e740_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | ||
125 | { | ||
126 | soc_pcmcia_disable_irqs(skt, cd_irqs, ARRAY_SIZE(cd_irqs)); | ||
127 | } | ||
128 | |||
129 | static struct pcmcia_low_level e740_pcmcia_ops = { | ||
130 | .owner = THIS_MODULE, | ||
131 | .hw_init = e740_pcmcia_hw_init, | ||
132 | .hw_shutdown = e740_pcmcia_hw_shutdown, | ||
133 | .socket_state = e740_pcmcia_socket_state, | ||
134 | .configure_socket = e740_pcmcia_configure_socket, | ||
135 | .socket_init = e740_pcmcia_socket_init, | ||
136 | .socket_suspend = e740_pcmcia_socket_suspend, | ||
137 | .nr = 2, | ||
138 | }; | ||
139 | |||
140 | static struct platform_device *e740_pcmcia_device; | ||
141 | |||
142 | static int __init e740_pcmcia_init(void) | ||
143 | { | ||
144 | int ret; | ||
145 | |||
146 | if (!machine_is_e740()) | ||
147 | return -ENODEV; | ||
148 | |||
149 | e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | ||
150 | if (!e740_pcmcia_device) | ||
151 | return -ENOMEM; | ||
152 | |||
153 | ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops, | ||
154 | sizeof(e740_pcmcia_ops)); | ||
155 | |||
156 | if (!ret) | ||
157 | ret = platform_device_add(e740_pcmcia_device); | ||
158 | |||
159 | if (ret) | ||
160 | platform_device_put(e740_pcmcia_device); | ||
161 | |||
162 | return ret; | ||
163 | } | ||
164 | |||
165 | static void __exit e740_pcmcia_exit(void) | ||
166 | { | ||
167 | platform_device_unregister(e740_pcmcia_device); | ||
168 | } | ||
169 | |||
170 | module_init(e740_pcmcia_init); | ||
171 | module_exit(e740_pcmcia_exit); | ||
172 | |||
173 | MODULE_LICENSE("GPL v2"); | ||
174 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | ||
175 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | ||
176 | MODULE_DESCRIPTION("e740 PCMCIA platform support"); | ||