mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 13:46:47 +07:00
1c3d038bd5
soc_common already initializes state.wrprot to zero, so explicitly setting wrprot to zero in the socket drivers has no additional effect. Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
170 lines
4.5 KiB
C
170 lines
4.5 KiB
C
/*
|
|
* linux/drivers/pcmcia/pxa2xx_colibri.c
|
|
*
|
|
* Driver for Toradex Colibri PXA270 CF socket
|
|
*
|
|
* Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/gpio.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
|
|
#include "soc_common.h"
|
|
|
|
#define COLIBRI270_RESET_GPIO 53
|
|
#define COLIBRI270_PPEN_GPIO 107
|
|
#define COLIBRI270_BVD1_GPIO 83
|
|
#define COLIBRI270_BVD2_GPIO 82
|
|
#define COLIBRI270_DETECT_GPIO 84
|
|
#define COLIBRI270_READY_GPIO 1
|
|
|
|
#define COLIBRI320_RESET_GPIO 77
|
|
#define COLIBRI320_PPEN_GPIO 57
|
|
#define COLIBRI320_BVD1_GPIO 53
|
|
#define COLIBRI320_BVD2_GPIO 79
|
|
#define COLIBRI320_DETECT_GPIO 81
|
|
#define COLIBRI320_READY_GPIO 29
|
|
|
|
enum {
|
|
DETECT = 0,
|
|
READY = 1,
|
|
BVD1 = 2,
|
|
BVD2 = 3,
|
|
PPEN = 4,
|
|
RESET = 5,
|
|
};
|
|
|
|
/* Contents of this array are configured on-the-fly in init function */
|
|
static struct gpio colibri_pcmcia_gpios[] = {
|
|
{ 0, GPIOF_IN, "PCMCIA Detect" },
|
|
{ 0, GPIOF_IN, "PCMCIA Ready" },
|
|
{ 0, GPIOF_IN, "PCMCIA BVD1" },
|
|
{ 0, GPIOF_IN, "PCMCIA BVD2" },
|
|
{ 0, GPIOF_INIT_LOW, "PCMCIA PPEN" },
|
|
{ 0, GPIOF_INIT_HIGH,"PCMCIA Reset" },
|
|
};
|
|
|
|
static int colibri_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request_array(colibri_pcmcia_gpios,
|
|
ARRAY_SIZE(colibri_pcmcia_gpios));
|
|
if (ret)
|
|
goto err1;
|
|
|
|
skt->socket.pci_irq = gpio_to_irq(colibri_pcmcia_gpios[READY].gpio);
|
|
skt->stat[SOC_STAT_CD].irq = gpio_to_irq(colibri_pcmcia_gpios[DETECT].gpio);
|
|
skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
|
|
|
|
err1:
|
|
return ret;
|
|
}
|
|
|
|
static void colibri_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
|
|
{
|
|
gpio_free_array(colibri_pcmcia_gpios,
|
|
ARRAY_SIZE(colibri_pcmcia_gpios));
|
|
}
|
|
|
|
static void colibri_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
|
|
struct pcmcia_state *state)
|
|
{
|
|
|
|
state->detect = !!gpio_get_value(colibri_pcmcia_gpios[DETECT].gpio);
|
|
state->ready = !!gpio_get_value(colibri_pcmcia_gpios[READY].gpio);
|
|
state->bvd1 = !!gpio_get_value(colibri_pcmcia_gpios[BVD1].gpio);
|
|
state->bvd2 = !!gpio_get_value(colibri_pcmcia_gpios[BVD2].gpio);
|
|
state->vs_3v = 1;
|
|
state->vs_Xv = 0;
|
|
}
|
|
|
|
static int
|
|
colibri_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
|
|
const socket_state_t *state)
|
|
{
|
|
gpio_set_value(colibri_pcmcia_gpios[PPEN].gpio,
|
|
!(state->Vcc == 33 && state->Vpp < 50));
|
|
gpio_set_value(colibri_pcmcia_gpios[RESET].gpio,
|
|
state->flags & SS_RESET);
|
|
return 0;
|
|
}
|
|
|
|
static struct pcmcia_low_level colibri_pcmcia_ops = {
|
|
.owner = THIS_MODULE,
|
|
|
|
.first = 0,
|
|
.nr = 1,
|
|
|
|
.hw_init = colibri_pcmcia_hw_init,
|
|
.hw_shutdown = colibri_pcmcia_hw_shutdown,
|
|
|
|
.socket_state = colibri_pcmcia_socket_state,
|
|
.configure_socket = colibri_pcmcia_configure_socket,
|
|
};
|
|
|
|
static struct platform_device *colibri_pcmcia_device;
|
|
|
|
static int __init colibri_pcmcia_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_colibri() && !machine_is_colibri320())
|
|
return -ENODEV;
|
|
|
|
colibri_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
|
|
if (!colibri_pcmcia_device)
|
|
return -ENOMEM;
|
|
|
|
/* Colibri PXA270 */
|
|
if (machine_is_colibri()) {
|
|
colibri_pcmcia_gpios[RESET].gpio = COLIBRI270_RESET_GPIO;
|
|
colibri_pcmcia_gpios[PPEN].gpio = COLIBRI270_PPEN_GPIO;
|
|
colibri_pcmcia_gpios[BVD1].gpio = COLIBRI270_BVD1_GPIO;
|
|
colibri_pcmcia_gpios[BVD2].gpio = COLIBRI270_BVD2_GPIO;
|
|
colibri_pcmcia_gpios[DETECT].gpio = COLIBRI270_DETECT_GPIO;
|
|
colibri_pcmcia_gpios[READY].gpio = COLIBRI270_READY_GPIO;
|
|
/* Colibri PXA320 */
|
|
} else if (machine_is_colibri320()) {
|
|
colibri_pcmcia_gpios[RESET].gpio = COLIBRI320_RESET_GPIO;
|
|
colibri_pcmcia_gpios[PPEN].gpio = COLIBRI320_PPEN_GPIO;
|
|
colibri_pcmcia_gpios[BVD1].gpio = COLIBRI320_BVD1_GPIO;
|
|
colibri_pcmcia_gpios[BVD2].gpio = COLIBRI320_BVD2_GPIO;
|
|
colibri_pcmcia_gpios[DETECT].gpio = COLIBRI320_DETECT_GPIO;
|
|
colibri_pcmcia_gpios[READY].gpio = COLIBRI320_READY_GPIO;
|
|
}
|
|
|
|
ret = platform_device_add_data(colibri_pcmcia_device,
|
|
&colibri_pcmcia_ops, sizeof(colibri_pcmcia_ops));
|
|
|
|
if (!ret)
|
|
ret = platform_device_add(colibri_pcmcia_device);
|
|
|
|
if (ret)
|
|
platform_device_put(colibri_pcmcia_device);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit colibri_pcmcia_exit(void)
|
|
{
|
|
platform_device_unregister(colibri_pcmcia_device);
|
|
}
|
|
|
|
module_init(colibri_pcmcia_init);
|
|
module_exit(colibri_pcmcia_exit);
|
|
|
|
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
|
|
MODULE_DESCRIPTION("PCMCIA support for Toradex Colibri PXA270/PXA320");
|
|
MODULE_ALIAS("platform:pxa2xx-pcmcia");
|
|
MODULE_LICENSE("GPL");
|