Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * drivers/pcmcia/sa1100_cerf.c | |
3 | * | |
4 | * PCMCIA implementation routines for CerfBoard | |
5 | * Based off the Assabet. | |
6 | * | |
7 | */ | |
8 | #include <linux/config.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/sched.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/delay.h> | |
15 | ||
16 | #include <asm/hardware.h> | |
17 | #include <asm/mach-types.h> | |
18 | #include <asm/irq.h> | |
19 | #include <asm/arch/cerf.h> | |
20 | #include "sa1100_generic.h" | |
21 | ||
22 | #define CERF_SOCKET 1 | |
23 | ||
24 | static struct pcmcia_irqs irqs[] = { | |
25 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_CD, "CF_CD" }, | |
26 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" }, | |
27 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" } | |
28 | }; | |
29 | ||
30 | static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
31 | { | |
32 | skt->irq = CERF_IRQ_GPIO_CF_IRQ; | |
33 | ||
34 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
35 | } | |
36 | ||
37 | static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
38 | { | |
39 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
40 | } | |
41 | ||
42 | static void | |
43 | cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) | |
44 | { | |
45 | unsigned long levels = GPLR; | |
46 | ||
47 | state->detect = (levels & CERF_GPIO_CF_CD) ?0:1; | |
48 | state->ready = (levels & CERF_GPIO_CF_IRQ) ?1:0; | |
49 | state->bvd1 = (levels & CERF_GPIO_CF_BVD1)?1:0; | |
50 | state->bvd2 = (levels & CERF_GPIO_CF_BVD2)?1:0; | |
51 | state->wrprot = 0; | |
52 | state->vs_3v = 1; | |
53 | state->vs_Xv = 0; | |
54 | } | |
55 | ||
56 | static int | |
57 | cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
58 | const socket_state_t *state) | |
59 | { | |
60 | switch (state->Vcc) { | |
61 | case 0: | |
62 | case 50: | |
63 | case 33: | |
64 | break; | |
65 | ||
66 | default: | |
67 | printk(KERN_ERR "%s(): unrecognized Vcc %u\n", | |
68 | __FUNCTION__, state->Vcc); | |
69 | return -1; | |
70 | } | |
71 | ||
72 | if (state->flags & SS_RESET) { | |
73 | GPSR = CERF_GPIO_CF_RESET; | |
74 | } else { | |
75 | GPCR = CERF_GPIO_CF_RESET; | |
76 | } | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
81 | static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | |
82 | { | |
83 | soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
84 | } | |
85 | ||
86 | static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | |
87 | { | |
88 | soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | |
89 | } | |
90 | ||
91 | static struct pcmcia_low_level cerf_pcmcia_ops = { | |
92 | .owner = THIS_MODULE, | |
93 | .hw_init = cerf_pcmcia_hw_init, | |
94 | .hw_shutdown = cerf_pcmcia_hw_shutdown, | |
95 | .socket_state = cerf_pcmcia_socket_state, | |
96 | .configure_socket = cerf_pcmcia_configure_socket, | |
97 | ||
98 | .socket_init = cerf_pcmcia_socket_init, | |
99 | .socket_suspend = cerf_pcmcia_socket_suspend, | |
100 | }; | |
101 | ||
102 | int __init pcmcia_cerf_init(struct device *dev) | |
103 | { | |
104 | int ret = -ENODEV; | |
105 | ||
106 | if (machine_is_cerf()) | |
107 | ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1); | |
108 | ||
109 | return ret; | |
110 | } |