diff options
Diffstat (limited to 'drivers/pcmcia/pxa2xx_cm_x270.c')
-rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x270.c | 108 |
1 files changed, 38 insertions, 70 deletions
diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c index e7ab060ff118..bb95db7d2b76 100644 --- a/drivers/pcmcia/pxa2xx_cm_x270.c +++ b/drivers/pcmcia/pxa2xx_cm_x270.c | |||
@@ -5,82 +5,60 @@ | |||
5 | * it under the terms of the GNU General Public License version 2 as | 5 | * it under the terms of the GNU General Public License version 2 as |
6 | * published by the Free Software Foundation. | 6 | * published by the Free Software Foundation. |
7 | * | 7 | * |
8 | * Compulab Ltd., 2003, 2007 | 8 | * Compulab Ltd., 2003, 2007, 2008 |
9 | * Mike Rapoport <mike@compulab.co.il> | 9 | * Mike Rapoport <mike@compulab.co.il> |
10 | * | 10 | * |
11 | */ | 11 | */ |
12 | 12 | ||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/platform_device.h> | 13 | #include <linux/platform_device.h> |
16 | #include <linux/irq.h> | 14 | #include <linux/irq.h> |
17 | #include <linux/delay.h> | 15 | #include <linux/delay.h> |
16 | #include <linux/gpio.h> | ||
18 | 17 | ||
19 | #include <pcmcia/ss.h> | 18 | #include <asm/mach-types.h> |
20 | #include <asm/hardware.h> | ||
21 | |||
22 | #include <asm/arch/pxa-regs.h> | 19 | #include <asm/arch/pxa-regs.h> |
23 | #include <asm/arch/pxa2xx-gpio.h> | ||
24 | #include <asm/arch/cm-x270.h> | ||
25 | 20 | ||
26 | #include "soc_common.h" | 21 | #include "soc_common.h" |
27 | 22 | ||
23 | #define GPIO_PCMCIA_S0_CD_VALID (84) | ||
24 | #define GPIO_PCMCIA_S0_RDYINT (82) | ||
25 | #define GPIO_PCMCIA_RESET (53) | ||
26 | |||
27 | #define PCMCIA_S0_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID) | ||
28 | #define PCMCIA_S0_RDYINT IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT) | ||
29 | |||
30 | |||
28 | static struct pcmcia_irqs irqs[] = { | 31 | static struct pcmcia_irqs irqs[] = { |
29 | { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, | 32 | { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, |
30 | { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" }, | ||
31 | }; | 33 | }; |
32 | 34 | ||
33 | static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | 35 | static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
34 | { | 36 | { |
35 | GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | | 37 | int ret = gpio_request(GPIO_PCMCIA_RESET, "PCCard reset"); |
36 | GPIO_bit(GPIO49_nPWE) | | 38 | if (ret) |
37 | GPIO_bit(GPIO50_nPIOR) | | 39 | return ret; |
38 | GPIO_bit(GPIO51_nPIOW) | | 40 | gpio_direction_output(GPIO_PCMCIA_RESET, 0); |
39 | GPIO_bit(GPIO85_nPCE_1) | | 41 | |
40 | GPIO_bit(GPIO54_nPCE_2); | 42 | skt->irq = PCMCIA_S0_RDYINT; |
41 | 43 | ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
42 | pxa_gpio_mode(GPIO48_nPOE_MD); | 44 | if (!ret) |
43 | pxa_gpio_mode(GPIO49_nPWE_MD); | 45 | gpio_free(GPIO_PCMCIA_RESET); |
44 | pxa_gpio_mode(GPIO50_nPIOR_MD); | 46 | |
45 | pxa_gpio_mode(GPIO51_nPIOW_MD); | 47 | return ret; |
46 | pxa_gpio_mode(GPIO85_nPCE_1_MD); | ||
47 | pxa_gpio_mode(GPIO54_nPCE_2_MD); | ||
48 | pxa_gpio_mode(GPIO55_nPREG_MD); | ||
49 | pxa_gpio_mode(GPIO56_nPWAIT_MD); | ||
50 | pxa_gpio_mode(GPIO57_nIOIS16_MD); | ||
51 | |||
52 | /* Reset signal */ | ||
53 | pxa_gpio_mode(GPIO53_nPCE_2 | GPIO_OUT); | ||
54 | GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); | ||
55 | |||
56 | set_irq_type(PCMCIA_S0_CD_VALID, IRQ_TYPE_EDGE_BOTH); | ||
57 | set_irq_type(PCMCIA_S1_CD_VALID, IRQ_TYPE_EDGE_BOTH); | ||
58 | |||
59 | /* irq's for slots: */ | ||
60 | set_irq_type(PCMCIA_S0_RDYINT, IRQ_TYPE_EDGE_FALLING); | ||
61 | set_irq_type(PCMCIA_S1_RDYINT, IRQ_TYPE_EDGE_FALLING); | ||
62 | |||
63 | skt->irq = (skt->nr == 0) ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT; | ||
64 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
65 | } | 48 | } |
66 | 49 | ||
67 | static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt) | 50 | static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt) |
68 | { | 51 | { |
69 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | 52 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); |
70 | 53 | gpio_free(GPIO_PCMCIA_RESET); | |
71 | set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_CD_VALID), IRQ_TYPE_NONE); | ||
72 | set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_CD_VALID), IRQ_TYPE_NONE); | ||
73 | |||
74 | set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_RDYINT), IRQ_TYPE_NONE); | ||
75 | set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_RDYINT), IRQ_TYPE_NONE); | ||
76 | } | 54 | } |
77 | 55 | ||
78 | 56 | ||
79 | static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | 57 | static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, |
80 | struct pcmcia_state *state) | 58 | struct pcmcia_state *state) |
81 | { | 59 | { |
82 | state->detect = (PCC_DETECT(skt->nr) == 0) ? 1 : 0; | 60 | state->detect = (gpio_get_value(GPIO_PCMCIA_S0_CD_VALID) == 0) ? 1 : 0; |
83 | state->ready = (PCC_READY(skt->nr) == 0) ? 0 : 1; | 61 | state->ready = (gpio_get_value(GPIO_PCMCIA_S0_RDYINT) == 0) ? 0 : 1; |
84 | state->bvd1 = 1; | 62 | state->bvd1 = 1; |
85 | state->bvd2 = 1; | 63 | state->bvd2 = 1; |
86 | state->vs_3v = 0; | 64 | state->vs_3v = 0; |
@@ -92,32 +70,16 @@ static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |||
92 | static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | 70 | static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, |
93 | const socket_state_t *state) | 71 | const socket_state_t *state) |
94 | { | 72 | { |
95 | GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); | ||
96 | pxa_gpio_mode(GPIO49_nPWE | GPIO_OUT); | ||
97 | |||
98 | switch (skt->nr) { | 73 | switch (skt->nr) { |
99 | case 0: | 74 | case 0: |
100 | if (state->flags & SS_RESET) { | 75 | if (state->flags & SS_RESET) { |
101 | GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); | 76 | gpio_set_value(GPIO_PCMCIA_RESET, 1); |
102 | GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); | ||
103 | udelay(10); | 77 | udelay(10); |
104 | GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); | 78 | gpio_set_value(GPIO_PCMCIA_RESET, 0); |
105 | GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); | ||
106 | } | ||
107 | break; | ||
108 | case 1: | ||
109 | if (state->flags & SS_RESET) { | ||
110 | GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); | ||
111 | GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); | ||
112 | udelay(10); | ||
113 | GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); | ||
114 | GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); | ||
115 | } | 79 | } |
116 | break; | 80 | break; |
117 | } | 81 | } |
118 | 82 | ||
119 | pxa_gpio_mode(GPIO49_nPWE_MD); | ||
120 | |||
121 | return 0; | 83 | return 0; |
122 | } | 84 | } |
123 | 85 | ||
@@ -130,7 +92,7 @@ static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | |||
130 | } | 92 | } |
131 | 93 | ||
132 | 94 | ||
133 | static struct pcmcia_low_level cmx270_pcmcia_ops = { | 95 | static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = { |
134 | .owner = THIS_MODULE, | 96 | .owner = THIS_MODULE, |
135 | .hw_init = cmx270_pcmcia_hw_init, | 97 | .hw_init = cmx270_pcmcia_hw_init, |
136 | .hw_shutdown = cmx270_pcmcia_shutdown, | 98 | .hw_shutdown = cmx270_pcmcia_shutdown, |
@@ -138,7 +100,7 @@ static struct pcmcia_low_level cmx270_pcmcia_ops = { | |||
138 | .configure_socket = cmx270_pcmcia_configure_socket, | 100 | .configure_socket = cmx270_pcmcia_configure_socket, |
139 | .socket_init = cmx270_pcmcia_socket_init, | 101 | .socket_init = cmx270_pcmcia_socket_init, |
140 | .socket_suspend = cmx270_pcmcia_socket_suspend, | 102 | .socket_suspend = cmx270_pcmcia_socket_suspend, |
141 | .nr = 2, | 103 | .nr = 1, |
142 | }; | 104 | }; |
143 | 105 | ||
144 | static struct platform_device *cmx270_pcmcia_device; | 106 | static struct platform_device *cmx270_pcmcia_device; |
@@ -147,15 +109,21 @@ static int __init cmx270_pcmcia_init(void) | |||
147 | { | 109 | { |
148 | int ret; | 110 | int ret; |
149 | 111 | ||
112 | if (!machine_is_armcore()) | ||
113 | return -ENODEV; | ||
114 | |||
150 | cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | 115 | cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); |
151 | 116 | ||
152 | if (!cmx270_pcmcia_device) | 117 | if (!cmx270_pcmcia_device) |
153 | return -ENOMEM; | 118 | return -ENOMEM; |
154 | 119 | ||
155 | cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops; | 120 | ret = platform_device_add_data(cmx270_pcmcia_device, &cmx270_pcmcia_ops, |
121 | sizeof(cmx270_pcmcia_ops)); | ||
156 | 122 | ||
157 | printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n"); | 123 | if (ret == 0) { |
158 | ret = platform_device_add(cmx270_pcmcia_device); | 124 | printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n"); |
125 | ret = platform_device_add(cmx270_pcmcia_device); | ||
126 | } | ||
159 | 127 | ||
160 | if (ret) | 128 | if (ret) |
161 | platform_device_put(cmx270_pcmcia_device); | 129 | platform_device_put(cmx270_pcmcia_device); |