diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/sa1100_cerf.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/pcmcia/sa1100_cerf.c')
-rw-r--r-- | drivers/pcmcia/sa1100_cerf.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1100_cerf.c b/drivers/pcmcia/sa1100_cerf.c new file mode 100644 index 000000000000..2b3c2895b43d --- /dev/null +++ b/drivers/pcmcia/sa1100_cerf.c | |||
@@ -0,0 +1,110 @@ | |||
1 | /* | ||
2 | * drivers/pcmcia/sa1100_cerf.c | ||
3 | * | ||
4 | * PCMCIA implementation routines for CerfBoard | ||
5 | * Based off the Assabet. | ||
6 | * | ||
7 | */ | ||
8 | #include <linux/config.h> | ||
9 | #include <linux/module.h> | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/sched.h> | ||
12 | #include <linux/device.h> | ||
13 | #include <linux/init.h> | ||
14 | #include <linux/delay.h> | ||
15 | |||
16 | #include <asm/hardware.h> | ||
17 | #include <asm/mach-types.h> | ||
18 | #include <asm/irq.h> | ||
19 | #include <asm/arch/cerf.h> | ||
20 | #include "sa1100_generic.h" | ||
21 | |||
22 | #define CERF_SOCKET 1 | ||
23 | |||
24 | static struct pcmcia_irqs irqs[] = { | ||
25 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_CD, "CF_CD" }, | ||
26 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD2, "CF_BVD2" }, | ||
27 | { CERF_SOCKET, CERF_IRQ_GPIO_CF_BVD1, "CF_BVD1" } | ||
28 | }; | ||
29 | |||
30 | static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) | ||
31 | { | ||
32 | skt->irq = CERF_IRQ_GPIO_CF_IRQ; | ||
33 | |||
34 | return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
35 | } | ||
36 | |||
37 | static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | ||
38 | { | ||
39 | soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
40 | } | ||
41 | |||
42 | static void | ||
43 | cerf_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) | ||
44 | { | ||
45 | unsigned long levels = GPLR; | ||
46 | |||
47 | state->detect = (levels & CERF_GPIO_CF_CD) ?0:1; | ||
48 | state->ready = (levels & CERF_GPIO_CF_IRQ) ?1:0; | ||
49 | state->bvd1 = (levels & CERF_GPIO_CF_BVD1)?1:0; | ||
50 | state->bvd2 = (levels & CERF_GPIO_CF_BVD2)?1:0; | ||
51 | state->wrprot = 0; | ||
52 | state->vs_3v = 1; | ||
53 | state->vs_Xv = 0; | ||
54 | } | ||
55 | |||
56 | static int | ||
57 | cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | ||
58 | const socket_state_t *state) | ||
59 | { | ||
60 | switch (state->Vcc) { | ||
61 | case 0: | ||
62 | case 50: | ||
63 | case 33: | ||
64 | break; | ||
65 | |||
66 | default: | ||
67 | printk(KERN_ERR "%s(): unrecognized Vcc %u\n", | ||
68 | __FUNCTION__, state->Vcc); | ||
69 | return -1; | ||
70 | } | ||
71 | |||
72 | if (state->flags & SS_RESET) { | ||
73 | GPSR = CERF_GPIO_CF_RESET; | ||
74 | } else { | ||
75 | GPCR = CERF_GPIO_CF_RESET; | ||
76 | } | ||
77 | |||
78 | return 0; | ||
79 | } | ||
80 | |||
81 | static void cerf_pcmcia_socket_init(struct soc_pcmcia_socket *skt) | ||
82 | { | ||
83 | soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
84 | } | ||
85 | |||
86 | static void cerf_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) | ||
87 | { | ||
88 | soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); | ||
89 | } | ||
90 | |||
91 | static struct pcmcia_low_level cerf_pcmcia_ops = { | ||
92 | .owner = THIS_MODULE, | ||
93 | .hw_init = cerf_pcmcia_hw_init, | ||
94 | .hw_shutdown = cerf_pcmcia_hw_shutdown, | ||
95 | .socket_state = cerf_pcmcia_socket_state, | ||
96 | .configure_socket = cerf_pcmcia_configure_socket, | ||
97 | |||
98 | .socket_init = cerf_pcmcia_socket_init, | ||
99 | .socket_suspend = cerf_pcmcia_socket_suspend, | ||
100 | }; | ||
101 | |||
102 | int __init pcmcia_cerf_init(struct device *dev) | ||
103 | { | ||
104 | int ret = -ENODEV; | ||
105 | |||
106 | if (machine_is_cerf()) | ||
107 | ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1); | ||
108 | |||
109 | return ret; | ||
110 | } | ||