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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * drivers/pcmcia/sa1100_shannon.c | |
3 | * | |
4 | * PCMCIA implementation routines for Shannon | |
5 | * | |
6 | */ | |
7 | #include <linux/module.h> | |
8 | #include <linux/kernel.h> | |
1da177e4 LT |
9 | #include <linux/device.h> |
10 | #include <linux/init.h> | |
3169663a | 11 | #include <linux/io.h> |
1da177e4 | 12 | |
a09e64fb | 13 | #include <mach/hardware.h> |
1da177e4 | 14 | #include <asm/mach-types.h> |
a09e64fb | 15 | #include <mach/shannon.h> |
1da177e4 LT |
16 | #include <asm/irq.h> |
17 | #include "sa1100_generic.h" | |
18 | ||
1da177e4 LT |
19 | static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
20 | { | |
21 | /* All those are inputs */ | |
3b61436a RK |
22 | GAFR &= ~(GPIO_GPIO(SHANNON_GPIO_EJECT_0) | |
23 | GPIO_GPIO(SHANNON_GPIO_EJECT_1) | | |
24 | GPIO_GPIO(SHANNON_GPIO_RDY_0) | | |
25 | GPIO_GPIO(SHANNON_GPIO_RDY_1)); | |
26 | ||
27 | if (skt->nr == 0) { | |
28 | skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_0; | |
29 | skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_0"; | |
30 | skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_0; | |
31 | skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_0"; | |
32 | } else { | |
33 | skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_1; | |
34 | skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_1"; | |
35 | skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_1; | |
36 | skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_1"; | |
37 | } | |
1da177e4 | 38 | |
3b61436a | 39 | return 0; |
1da177e4 LT |
40 | } |
41 | ||
42 | static void | |
43 | shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
44 | struct pcmcia_state *state) | |
45 | { | |
1da177e4 LT |
46 | switch (skt->nr) { |
47 | case 0: | |
1da177e4 LT |
48 | state->bvd1 = 1; |
49 | state->bvd2 = 1; | |
50 | state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */ | |
51 | state->vs_Xv = 0; | |
52 | break; | |
53 | ||
54 | case 1: | |
1da177e4 LT |
55 | state->bvd1 = 1; |
56 | state->bvd2 = 1; | |
57 | state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */ | |
58 | state->vs_Xv = 0; | |
59 | break; | |
60 | } | |
61 | } | |
62 | ||
63 | static int | |
64 | shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
65 | const socket_state_t *state) | |
66 | { | |
67 | switch (state->Vcc) { | |
68 | case 0: /* power off */ | |
2e11cb4c | 69 | printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __func__); |
1da177e4 LT |
70 | break; |
71 | case 50: | |
2e11cb4c | 72 | printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __func__); |
1da177e4 LT |
73 | case 33: |
74 | break; | |
75 | default: | |
76 | printk(KERN_ERR "%s(): unrecognized Vcc %u\n", | |
2e11cb4c | 77 | __func__, state->Vcc); |
1da177e4 LT |
78 | return -1; |
79 | } | |
80 | ||
2e11cb4c | 81 | printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __func__); |
1da177e4 LT |
82 | |
83 | /* Silently ignore Vpp, output enable, speaker enable. */ | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
1da177e4 LT |
88 | static struct pcmcia_low_level shannon_pcmcia_ops = { |
89 | .owner = THIS_MODULE, | |
90 | .hw_init = shannon_pcmcia_hw_init, | |
1da177e4 LT |
91 | .socket_state = shannon_pcmcia_socket_state, |
92 | .configure_socket = shannon_pcmcia_configure_socket, | |
1da177e4 LT |
93 | }; |
94 | ||
34cdf25a | 95 | int pcmcia_shannon_init(struct device *dev) |
1da177e4 LT |
96 | { |
97 | int ret = -ENODEV; | |
98 | ||
99 | if (machine_is_shannon()) | |
100 | ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2); | |
101 | ||
102 | return ret; | |
103 | } |