Root/
1 | /* |
2 | * drivers/pcmcia/sa1100_assabet.c |
3 | * |
4 | * PCMCIA implementation routines for Assabet |
5 | * |
6 | */ |
7 | #include <linux/module.h> |
8 | #include <linux/kernel.h> |
9 | #include <linux/errno.h> |
10 | #include <linux/interrupt.h> |
11 | #include <linux/device.h> |
12 | #include <linux/init.h> |
13 | #include <linux/gpio.h> |
14 | |
15 | #include <asm/mach-types.h> |
16 | #include <mach/assabet.h> |
17 | |
18 | #include "sa1100_generic.h" |
19 | |
20 | static int assabet_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
21 | { |
22 | skt->stat[SOC_STAT_CD].gpio = ASSABET_GPIO_CF_CD; |
23 | skt->stat[SOC_STAT_CD].name = "CF CD"; |
24 | skt->stat[SOC_STAT_BVD1].gpio = ASSABET_GPIO_CF_BVD1; |
25 | skt->stat[SOC_STAT_BVD1].name = "CF BVD1"; |
26 | skt->stat[SOC_STAT_BVD2].gpio = ASSABET_GPIO_CF_BVD2; |
27 | skt->stat[SOC_STAT_BVD2].name = "CF BVD2"; |
28 | skt->stat[SOC_STAT_RDY].gpio = ASSABET_GPIO_CF_IRQ; |
29 | skt->stat[SOC_STAT_RDY].name = "CF RDY"; |
30 | |
31 | return 0; |
32 | } |
33 | |
34 | static void |
35 | assabet_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) |
36 | { |
37 | state->vs_3v = 1; /* Can only apply 3.3V on Assabet. */ |
38 | state->vs_Xv = 0; |
39 | } |
40 | |
41 | static int |
42 | assabet_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) |
43 | { |
44 | unsigned int mask; |
45 | |
46 | switch (state->Vcc) { |
47 | case 0: |
48 | mask = 0; |
49 | break; |
50 | |
51 | case 50: |
52 | printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V...\n", |
53 | __func__); |
54 | |
55 | case 33: /* Can only apply 3.3V to the CF slot. */ |
56 | mask = ASSABET_BCR_CF_PWR; |
57 | break; |
58 | |
59 | default: |
60 | printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __func__, |
61 | state->Vcc); |
62 | return -1; |
63 | } |
64 | |
65 | /* Silently ignore Vpp, speaker enable. */ |
66 | |
67 | if (state->flags & SS_RESET) |
68 | mask |= ASSABET_BCR_CF_RST; |
69 | if (!(state->flags & SS_OUTPUT_ENA)) |
70 | mask |= ASSABET_BCR_CF_BUS_OFF; |
71 | |
72 | ASSABET_BCR_frob(ASSABET_BCR_CF_RST | ASSABET_BCR_CF_PWR | |
73 | ASSABET_BCR_CF_BUS_OFF, mask); |
74 | |
75 | return 0; |
76 | } |
77 | |
78 | /* |
79 | * Disable card status IRQs on suspend. |
80 | */ |
81 | static void assabet_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) |
82 | { |
83 | /* |
84 | * Tristate the CF bus signals. Also assert CF |
85 | * reset as per user guide page 4-11. |
86 | */ |
87 | ASSABET_BCR_set(ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_CF_RST); |
88 | } |
89 | |
90 | static struct pcmcia_low_level assabet_pcmcia_ops = { |
91 | .owner = THIS_MODULE, |
92 | .hw_init = assabet_pcmcia_hw_init, |
93 | .socket_state = assabet_pcmcia_socket_state, |
94 | .configure_socket = assabet_pcmcia_configure_socket, |
95 | .socket_suspend = assabet_pcmcia_socket_suspend, |
96 | }; |
97 | |
98 | int __devinit pcmcia_assabet_init(struct device *dev) |
99 | { |
100 | int ret = -ENODEV; |
101 | |
102 | if (machine_is_assabet() && !machine_has_neponset()) |
103 | ret = sa11xx_drv_pcmcia_probe(dev, &assabet_pcmcia_ops, 1, 1); |
104 | |
105 | return ret; |
106 | } |
107 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9