Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * drivers/pcmcia/sa1100_jornada720.c | |
3 | * | |
4 | * Jornada720 PCMCIA specific routines | |
5 | * | |
6 | */ | |
7 | #include <linux/module.h> | |
8 | #include <linux/kernel.h> | |
1da177e4 LT |
9 | #include <linux/device.h> |
10 | #include <linux/errno.h> | |
11 | #include <linux/init.h> | |
12 | ||
a09e64fb | 13 | #include <mach/hardware.h> |
1da177e4 LT |
14 | #include <asm/hardware/sa1111.h> |
15 | #include <asm/mach-types.h> | |
16 | ||
17 | #include "sa1111_generic.h" | |
18 | ||
02e87d1a KE |
19 | /* Does SOCKET1_3V actually do anything? */ |
20 | #define SOCKET0_POWER GPIO_GPIO0 | |
21 | #define SOCKET0_3V GPIO_GPIO2 | |
22 | #define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3) | |
1da177e4 LT |
23 | #define SOCKET1_3V GPIO_GPIO3 |
24 | ||
25 | static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
26 | { | |
02e87d1a KE |
27 | unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3; |
28 | ||
29 | /* | |
30 | * What is all this crap for? | |
31 | */ | |
32 | GRER |= 0x00000002; | |
33 | /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */ | |
34 | sa1111_set_io_dir(SA1111_DEV(skt->dev), pin, 0, 0); | |
35 | sa1111_set_io(SA1111_DEV(skt->dev), pin, 0); | |
36 | sa1111_set_sleep_io(SA1111_DEV(skt->dev), pin, 0); | |
37 | ||
38 | return sa1111_pcmcia_hw_init(skt); | |
1da177e4 LT |
39 | } |
40 | ||
41 | static int | |
42 | jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) | |
43 | { | |
02e87d1a KE |
44 | unsigned int pa_dwr_mask, pa_dwr_set; |
45 | int ret; | |
46 | ||
47 | printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__, | |
48 | skt->nr, state->Vcc, state->Vpp); | |
49 | ||
50 | switch (skt->nr) { | |
51 | case 0: | |
52 | pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V; | |
53 | ||
54 | switch (state->Vcc) { | |
55 | default: | |
56 | case 0: | |
57 | pa_dwr_set = 0; | |
58 | break; | |
59 | case 33: | |
60 | pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; | |
61 | break; | |
62 | case 50: | |
63 | pa_dwr_set = SOCKET0_POWER; | |
64 | break; | |
65 | } | |
66 | break; | |
67 | ||
68 | case 1: | |
69 | pa_dwr_mask = SOCKET1_POWER; | |
70 | ||
71 | switch (state->Vcc) { | |
72 | default: | |
73 | case 0: | |
74 | pa_dwr_set = 0; | |
75 | break; | |
76 | case 33: | |
77 | pa_dwr_set = SOCKET1_POWER; | |
78 | break; | |
79 | case 50: | |
80 | pa_dwr_set = SOCKET1_POWER; | |
81 | break; | |
82 | } | |
83 | break; | |
84 | ||
85 | default: | |
86 | return -1; | |
87 | } | |
88 | ||
89 | if (state->Vpp != state->Vcc && state->Vpp != 0) { | |
90 | printk(KERN_ERR "%s(): slot cannot support VPP %u\n", | |
91 | __func__, state->Vpp); | |
92 | return -EPERM; | |
93 | } | |
94 | ||
95 | ret = sa1111_pcmcia_configure_socket(skt, state); | |
96 | if (ret == 0) { | |
97 | unsigned long flags; | |
98 | ||
99 | local_irq_save(flags); | |
100 | sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set); | |
101 | local_irq_restore(flags); | |
102 | } | |
103 | ||
104 | return ret; | |
1da177e4 LT |
105 | } |
106 | ||
107 | static struct pcmcia_low_level jornada720_pcmcia_ops = { | |
02e87d1a KE |
108 | .owner = THIS_MODULE, |
109 | .hw_init = jornada720_pcmcia_hw_init, | |
110 | .hw_shutdown = sa1111_pcmcia_hw_shutdown, | |
111 | .socket_state = sa1111_pcmcia_socket_state, | |
112 | .configure_socket = jornada720_pcmcia_configure_socket, | |
113 | ||
114 | .socket_init = sa1111_pcmcia_socket_init, | |
115 | .socket_suspend = sa1111_pcmcia_socket_suspend, | |
1da177e4 LT |
116 | }; |
117 | ||
85e6c7a7 | 118 | int __devinit pcmcia_jornada720_init(struct device *dev) |
1da177e4 LT |
119 | { |
120 | int ret = -ENODEV; | |
121 | ||
122 | if (machine_is_jornada720()) | |
123 | ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2); | |
124 | ||
125 | return ret; | |
126 | } |