Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * drivers/pcmcia/sa1100_cerf.c | |
4 | * | |
5 | * PCMCIA implementation routines for CerfBoard | |
6 | * Based off the Assabet. | |
7 | * | |
8 | */ | |
1da177e4 LT |
9 | #include <linux/module.h> |
10 | #include <linux/kernel.h> | |
1da177e4 LT |
11 | #include <linux/device.h> |
12 | #include <linux/init.h> | |
13 | #include <linux/delay.h> | |
bbb58a12 | 14 | #include <linux/gpio.h> |
1da177e4 | 15 | |
a09e64fb | 16 | #include <mach/hardware.h> |
1da177e4 LT |
17 | #include <asm/mach-types.h> |
18 | #include <asm/irq.h> | |
a09e64fb | 19 | #include <mach/cerf.h> |
1da177e4 LT |
20 | #include "sa1100_generic.h" |
21 | ||
22 | #define CERF_SOCKET 1 | |
23 | ||
1da177e4 LT |
24 | static int cerf_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
25 | { | |
bbb58a12 RK |
26 | int ret; |
27 | ||
28 | ret = gpio_request_one(CERF_GPIO_CF_RESET, GPIOF_OUT_INIT_LOW, "CF_RESET"); | |
29 | if (ret) | |
30 | return ret; | |
31 | ||
f793e3ab RK |
32 | skt->stat[SOC_STAT_CD].gpio = CERF_GPIO_CF_CD; |
33 | skt->stat[SOC_STAT_CD].name = "CF_CD"; | |
34 | skt->stat[SOC_STAT_BVD1].gpio = CERF_GPIO_CF_BVD1; | |
35 | skt->stat[SOC_STAT_BVD1].name = "CF_BVD1"; | |
36 | skt->stat[SOC_STAT_BVD2].gpio = CERF_GPIO_CF_BVD2; | |
37 | skt->stat[SOC_STAT_BVD2].name = "CF_BVD2"; | |
38 | skt->stat[SOC_STAT_RDY].gpio = CERF_GPIO_CF_IRQ; | |
39 | skt->stat[SOC_STAT_RDY].name = "CF_IRQ"; | |
1da177e4 | 40 | |
f793e3ab | 41 | return 0; |
1da177e4 LT |
42 | } |
43 | ||
bbb58a12 RK |
44 | static void cerf_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) |
45 | { | |
46 | gpio_free(CERF_GPIO_CF_RESET); | |
47 | } | |
48 | ||
1da177e4 LT |
49 | static int |
50 | cerf_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
51 | const socket_state_t *state) | |
52 | { | |
53 | switch (state->Vcc) { | |
54 | case 0: | |
55 | case 50: | |
56 | case 33: | |
57 | break; | |
58 | ||
59 | default: | |
60 | printk(KERN_ERR "%s(): unrecognized Vcc %u\n", | |
2e11cb4c | 61 | __func__, state->Vcc); |
1da177e4 LT |
62 | return -1; |
63 | } | |
64 | ||
bbb58a12 | 65 | gpio_set_value(CERF_GPIO_CF_RESET, !!(state->flags & SS_RESET)); |
1da177e4 LT |
66 | |
67 | return 0; | |
68 | } | |
69 | ||
1da177e4 LT |
70 | static struct pcmcia_low_level cerf_pcmcia_ops = { |
71 | .owner = THIS_MODULE, | |
72 | .hw_init = cerf_pcmcia_hw_init, | |
bbb58a12 | 73 | .hw_shutdown = cerf_pcmcia_hw_shutdown, |
a1d05002 | 74 | .socket_state = soc_common_cf_socket_state, |
1da177e4 | 75 | .configure_socket = cerf_pcmcia_configure_socket, |
1da177e4 LT |
76 | }; |
77 | ||
34cdf25a | 78 | int pcmcia_cerf_init(struct device *dev) |
1da177e4 LT |
79 | { |
80 | int ret = -ENODEV; | |
81 | ||
82 | if (machine_is_cerf()) | |
83 | ret = sa11xx_drv_pcmcia_probe(dev, &cerf_pcmcia_ops, CERF_SOCKET, 1); | |
84 | ||
85 | return ret; | |
86 | } |