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 | ||
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 | ||
25 | static 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: */ | |
821ca478 MG |
32 | 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); | |
1da177e4 LT |
35 | |
36 | return sa1111_pcmcia_hw_init(skt); | |
37 | } | |
38 | ||
39 | static int | |
40 | jornada720_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 | ||
2e11cb4c | 45 | printk("%s(): config socket %d vcc %d vpp %d\n", __func__, |
1da177e4 LT |
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", | |
2e11cb4c | 77 | __func__, state->Vpp); |
1da177e4 LT |
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); | |
821ca478 | 86 | sa1111_set_io(SA1111_DEV(skt->dev), pa_dwr_mask, pa_dwr_set); |
1da177e4 LT |
87 | local_irq_restore(flags); |
88 | } | |
89 | ||
90 | return ret; | |
91 | } | |
92 | ||
93 | static 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 | ||
85e6c7a7 | 104 | int __devinit pcmcia_jornada720_init(struct device *dev) |
1da177e4 LT |
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 | } |