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-rw-r--r--drivers/pcmcia/Makefile1
-rw-r--r--drivers/pcmcia/pxa2xx_cm_x270.c175
2 files changed, 176 insertions, 0 deletions
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 4276965517f2..dc7a4cb5d270 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -69,4 +69,5 @@ sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o
69pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK) += pxa2xx_lubbock.o sa1111_generic.o 69pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK) += pxa2xx_lubbock.o sa1111_generic.o
70pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o 70pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o
71pxa2xx_cs-$(CONFIG_PXA_SHARPSL) += pxa2xx_sharpsl.o 71pxa2xx_cs-$(CONFIG_PXA_SHARPSL) += pxa2xx_sharpsl.o
72pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x270.o
72 73
diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c
new file mode 100644
index 000000000000..fbf2f3a6984c
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_cm_x270.c
@@ -0,0 +1,175 @@
1/*
2 * linux/drivers/pcmcia/pxa/pxa_cm_x270.c
3 *
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.
7 *
8 * Compulab Ltd., 2003, 2007
9 * Mike Rapoport <mike@compulab.co.il>
10 *
11 */
12
13#include <linux/kernel.h>
14#include <linux/sched.h>
15#include <linux/platform_device.h>
16#include <linux/irq.h>
17#include <linux/delay.h>
18
19#include <pcmcia/ss.h>
20#include <asm/hardware.h>
21
22#include <asm/arch/pxa-regs.h>
23#include <asm/arch/cm-x270.h>
24
25#include "soc_common.h"
26
27static struct pcmcia_irqs irqs[] = {
28 { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" },
29 { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" },
30};
31
32static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
33{
34 GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
35 GPIO_bit(GPIO49_nPWE) |
36 GPIO_bit(GPIO50_nPIOR) |
37 GPIO_bit(GPIO51_nPIOW) |
38 GPIO_bit(GPIO85_nPCE_1) |
39 GPIO_bit(GPIO54_nPCE_2);
40
41 pxa_gpio_mode(GPIO48_nPOE_MD);
42 pxa_gpio_mode(GPIO49_nPWE_MD);
43 pxa_gpio_mode(GPIO50_nPIOR_MD);
44 pxa_gpio_mode(GPIO51_nPIOW_MD);
45 pxa_gpio_mode(GPIO85_nPCE_1_MD);
46 pxa_gpio_mode(GPIO54_nPCE_2_MD);
47 pxa_gpio_mode(GPIO55_nPREG_MD);
48 pxa_gpio_mode(GPIO56_nPWAIT_MD);
49 pxa_gpio_mode(GPIO57_nIOIS16_MD);
50
51 /* Reset signal */
52 pxa_gpio_mode(GPIO53_nPCE_2 | GPIO_OUT);
53 GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2);
54
55 set_irq_type(PCMCIA_S0_CD_VALID, IRQ_TYPE_EDGE_BOTH);
56 set_irq_type(PCMCIA_S1_CD_VALID, IRQ_TYPE_EDGE_BOTH);
57
58 /* irq's for slots: */
59 set_irq_type(PCMCIA_S0_RDYINT, IRQ_TYPE_EDGE_FALLING);
60 set_irq_type(PCMCIA_S1_RDYINT, IRQ_TYPE_EDGE_FALLING);
61
62 skt->irq = (skt->nr == 0) ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT;
63 return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
64}
65
66static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt)
67{
68 soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
69
70 set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_CD_VALID), IRQ_TYPE_NONE);
71 set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_CD_VALID), IRQ_TYPE_NONE);
72
73 set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_RDYINT), IRQ_TYPE_NONE);
74 set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_RDYINT), IRQ_TYPE_NONE);
75}
76
77
78static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
79 struct pcmcia_state *state)
80{
81 state->detect = (PCC_DETECT(skt->nr) == 0) ? 1 : 0;
82 state->ready = (PCC_READY(skt->nr) == 0) ? 0 : 1;
83 state->bvd1 = 1;
84 state->bvd2 = 1;
85 state->vs_3v = 0;
86 state->vs_Xv = 0;
87 state->wrprot = 0; /* not available */
88}
89
90
91static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
92 const socket_state_t *state)
93{
94 GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE);
95 pxa_gpio_mode(GPIO49_nPWE | GPIO_OUT);
96
97 switch (skt->nr) {
98 case 0:
99 if (state->flags & SS_RESET) {
100 GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE);
101 GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2);
102 udelay(10);
103 GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2);
104 GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE);
105 }
106 break;
107 case 1:
108 if (state->flags & SS_RESET) {
109 GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE);
110 GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2);
111 udelay(10);
112 GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2);
113 GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE);
114 }
115 break;
116 }
117
118 pxa_gpio_mode(GPIO49_nPWE_MD);
119
120 return 0;
121}
122
123static void cmx270_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
124{
125}
126
127static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
128{
129}
130
131
132static struct pcmcia_low_level cmx270_pcmcia_ops = {
133 .owner = THIS_MODULE,
134 .hw_init = cmx270_pcmcia_hw_init,
135 .hw_shutdown = cmx270_pcmcia_shutdown,
136 .socket_state = cmx270_pcmcia_socket_state,
137 .configure_socket = cmx270_pcmcia_configure_socket,
138 .socket_init = cmx270_pcmcia_socket_init,
139 .socket_suspend = cmx270_pcmcia_socket_suspend,
140 .nr = 2,
141};
142
143static struct platform_device *cmx270_pcmcia_device;
144
145static int __init cmx270_pcmcia_init(void)
146{
147 int ret;
148
149 cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
150
151 if (!cmx270_pcmcia_device)
152 return -ENOMEM;
153
154 cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops;
155
156 printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n");
157 ret = platform_device_add(cmx270_pcmcia_device);
158
159 if (ret)
160 platform_device_put(cmx270_pcmcia_device);
161
162 return ret;
163}
164
165static void __exit cmx270_pcmcia_exit(void)
166{
167 platform_device_unregister(cmx270_pcmcia_device);
168}
169
170module_init(cmx270_pcmcia_init);
171module_exit(cmx270_pcmcia_exit);
172
173MODULE_LICENSE("GPL");
174MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
175MODULE_DESCRIPTION("CM-x270 PCMCIA driver");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 07:15:21 -0500