blob: af485ae386024fbf560d260b52a83db25e1a5b2f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * drivers/pcmcia/sa1100_jornada720.c
3 *
4 * Jornada720 PCMCIA specific routines
5 *
6 */
7#include <linux/module.h>
8#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07009#include <linux/device.h>
10#include <linux/errno.h>
11#include <linux/init.h>
12
13#include <asm/hardware.h>
14#include <asm/hardware/sa1111.h>
15#include <asm/mach-types.h>
16
17#include "sa1111_generic.h"
18
19#define SOCKET0_POWER GPIO_GPIO0
20#define SOCKET0_3V GPIO_GPIO2
21#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3)
22#warning *** Does SOCKET1_3V actually do anything?
23#define SOCKET1_3V GPIO_GPIO3
24
25static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
26{
27 /*
28 * What is all this crap for?
29 */
30 GRER |= 0x00000002;
31 /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
Michael Gernoth821ca472005-07-26 19:21:47 +010032 sa1111_set_io_dir(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0, 0);
33 sa1111_set_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
34 sa1111_set_sleep_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36 return sa1111_pcmcia_hw_init(skt);
37}
38
39static int
40jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
41{
42 unsigned int pa_dwr_mask, pa_dwr_set;
43 int ret;
44
45printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__,
46 skt->nr, state->Vcc, state->Vpp);
47
48 switch (skt->nr) {
49 case 0:
50 pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
51
52 switch (state->Vcc) {
53 default:
54 case 0: pa_dwr_set = 0; break;
55 case 33: pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; break;
56 case 50: pa_dwr_set = SOCKET0_POWER; break;
57 }
58 break;
59
60 case 1:
61 pa_dwr_mask = SOCKET1_POWER;
62
63 switch (state->Vcc) {
64 default:
65 case 0: pa_dwr_set = 0; break;
66 case 33: pa_dwr_set = SOCKET1_POWER; break;
67 case 50: pa_dwr_set = SOCKET1_POWER; break;
68 }
69 break;
70
71 default:
72 return -1;
73 }
74
75 if (state->Vpp != state->Vcc && state->Vpp != 0) {
76 printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
77 __FUNCTION__, state->Vpp);
78 return -1;
79 }
80
81 ret = sa1111_pcmcia_configure_socket(skt, state);
82 if (ret == 0) {
83 unsigned long flags;
84
85 local_irq_save(flags);
Michael Gernoth821ca472005-07-26 19:21:47 +010086 sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set);
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 local_irq_restore(flags);
88 }
89
90 return ret;
91}
92
93static struct pcmcia_low_level jornada720_pcmcia_ops = {
94 .owner = THIS_MODULE,
95 .hw_init = jornada720_pcmcia_hw_init,
96 .hw_shutdown = sa1111_pcmcia_hw_shutdown,
97 .socket_state = sa1111_pcmcia_socket_state,
98 .configure_socket = jornada720_pcmcia_configure_socket,
99
100 .socket_init = sa1111_pcmcia_socket_init,
101 .socket_suspend = sa1111_pcmcia_socket_suspend,
102};
103
104int __init pcmcia_jornada720_init(struct device *dev)
105{
106 int ret = -ENODEV;
107
108 if (machine_is_jornada720())
109 ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2);
110
111 return ret;
112}