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> | |
9 | #include <linux/sched.h> | |
10 | #include <linux/device.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/init.h> | |
13 | ||
14 | #include <asm/hardware.h> | |
15 | #include <asm/hardware/sa1111.h> | |
16 | #include <asm/mach-types.h> | |
17 | ||
18 | #include "sa1111_generic.h" | |
19 | ||
20 | #define SOCKET0_POWER GPIO_GPIO0 | |
21 | #define SOCKET0_3V GPIO_GPIO2 | |
22 | #define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3) | |
23 | #warning *** Does SOCKET1_3V actually do anything? | |
24 | #define SOCKET1_3V GPIO_GPIO3 | |
25 | ||
26 | static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | |
27 | { | |
28 | /* | |
29 | * What is all this crap for? | |
30 | */ | |
31 | GRER |= 0x00000002; | |
32 | /* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */ | |
821ca478 MG |
33 | sa1111_set_io_dir(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0, 0); |
34 | sa1111_set_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0); | |
35 | sa1111_set_sleep_io(SA1111_DEV(skt->dev), GPIO_A0|GPIO_A1|GPIO_A2|GPIO_A3, 0); | |
1da177e4 LT |
36 | |
37 | return sa1111_pcmcia_hw_init(skt); | |
38 | } | |
39 | ||
40 | static int | |
41 | jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) | |
42 | { | |
43 | unsigned int pa_dwr_mask, pa_dwr_set; | |
44 | int ret; | |
45 | ||
46 | printk("%s(): config socket %d vcc %d vpp %d\n", __FUNCTION__, | |
47 | skt->nr, state->Vcc, state->Vpp); | |
48 | ||
49 | switch (skt->nr) { | |
50 | case 0: | |
51 | pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V; | |
52 | ||
53 | switch (state->Vcc) { | |
54 | default: | |
55 | case 0: pa_dwr_set = 0; break; | |
56 | case 33: pa_dwr_set = SOCKET0_POWER | SOCKET0_3V; break; | |
57 | case 50: pa_dwr_set = SOCKET0_POWER; break; | |
58 | } | |
59 | break; | |
60 | ||
61 | case 1: | |
62 | pa_dwr_mask = SOCKET1_POWER; | |
63 | ||
64 | switch (state->Vcc) { | |
65 | default: | |
66 | case 0: pa_dwr_set = 0; break; | |
67 | case 33: pa_dwr_set = SOCKET1_POWER; break; | |
68 | case 50: pa_dwr_set = SOCKET1_POWER; break; | |
69 | } | |
70 | break; | |
71 | ||
72 | default: | |
73 | return -1; | |
74 | } | |
75 | ||
76 | if (state->Vpp != state->Vcc && state->Vpp != 0) { | |
77 | printk(KERN_ERR "%s(): slot cannot support VPP %u\n", | |
78 | __FUNCTION__, state->Vpp); | |
79 | return -1; | |
80 | } | |
81 | ||
82 | ret = sa1111_pcmcia_configure_socket(skt, state); | |
83 | if (ret == 0) { | |
84 | unsigned long flags; | |
85 | ||
86 | local_irq_save(flags); | |
821ca478 | 87 | sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set); |
1da177e4 LT |
88 | local_irq_restore(flags); |
89 | } | |
90 | ||
91 | return ret; | |
92 | } | |
93 | ||
94 | static struct pcmcia_low_level jornada720_pcmcia_ops = { | |
95 | .owner = THIS_MODULE, | |
96 | .hw_init = jornada720_pcmcia_hw_init, | |
97 | .hw_shutdown = sa1111_pcmcia_hw_shutdown, | |
98 | .socket_state = sa1111_pcmcia_socket_state, | |
99 | .configure_socket = jornada720_pcmcia_configure_socket, | |
100 | ||
101 | .socket_init = sa1111_pcmcia_socket_init, | |
102 | .socket_suspend = sa1111_pcmcia_socket_suspend, | |
103 | }; | |
104 | ||
105 | int __init pcmcia_jornada720_init(struct device *dev) | |
106 | { | |
107 | int ret = -ENODEV; | |
108 | ||
109 | if (machine_is_jornada720()) | |
110 | ret = sa11xx_drv_pcmcia_probe(dev, &jornada720_pcmcia_ops, 0, 2); | |
111 | ||
112 | return ret; | |
113 | } |