1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/pcmcia/pxa/pxa_cm_x270.c
5 * Compulab Ltd., 2003, 2007, 2008
6 * Mike Rapoport <mike@compulab.co.il>
9 #include <linux/platform_device.h>
10 #include <linux/irq.h>
11 #include <linux/delay.h>
12 #include <linux/gpio.h>
13 #include <linux/export.h>
15 #include "soc_common.h"
17 #define GPIO_PCMCIA_S0_CD_VALID (84)
18 #define GPIO_PCMCIA_S0_RDYINT (82)
19 #define GPIO_PCMCIA_RESET (53)
21 static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket
*skt
)
23 int ret
= gpio_request(GPIO_PCMCIA_RESET
, "PCCard reset");
26 gpio_direction_output(GPIO_PCMCIA_RESET
, 0);
28 skt
->stat
[SOC_STAT_CD
].gpio
= GPIO_PCMCIA_S0_CD_VALID
;
29 skt
->stat
[SOC_STAT_CD
].name
= "PCMCIA0 CD";
30 skt
->stat
[SOC_STAT_RDY
].gpio
= GPIO_PCMCIA_S0_RDYINT
;
31 skt
->stat
[SOC_STAT_RDY
].name
= "PCMCIA0 RDY";
36 static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket
*skt
)
38 gpio_free(GPIO_PCMCIA_RESET
);
42 static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket
*skt
,
43 struct pcmcia_state
*state
)
50 static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket
*skt
,
51 const socket_state_t
*state
)
55 if (state
->flags
& SS_RESET
) {
56 gpio_set_value(GPIO_PCMCIA_RESET
, 1);
58 gpio_set_value(GPIO_PCMCIA_RESET
, 0);
66 static struct pcmcia_low_level cmx270_pcmcia_ops __initdata
= {
68 .hw_init
= cmx270_pcmcia_hw_init
,
69 .hw_shutdown
= cmx270_pcmcia_shutdown
,
70 .socket_state
= cmx270_pcmcia_socket_state
,
71 .configure_socket
= cmx270_pcmcia_configure_socket
,
75 static struct platform_device
*cmx270_pcmcia_device
;
77 int __init
cmx270_pcmcia_init(void)
81 cmx270_pcmcia_device
= platform_device_alloc("pxa2xx-pcmcia", -1);
83 if (!cmx270_pcmcia_device
)
86 ret
= platform_device_add_data(cmx270_pcmcia_device
, &cmx270_pcmcia_ops
,
87 sizeof(cmx270_pcmcia_ops
));
90 printk(KERN_INFO
"Registering cm-x270 PCMCIA interface.\n");
91 ret
= platform_device_add(cmx270_pcmcia_device
);
95 platform_device_put(cmx270_pcmcia_device
);
100 void __exit
cmx270_pcmcia_exit(void)
102 platform_device_unregister(cmx270_pcmcia_device
);