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[ARM] 5283/1: pxa: add CM-X255 pcmcia support

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Signed-off-by: Russ Dill <russ.dill@gmail.com>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Mike Rapoport 2008-10-05 10:27:22 +01:00 committed by Russell King
parent a7f3f0309b
commit 8616e2fb69
4 changed files with 206 additions and 13 deletions
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2
drivers/pcmcia/Makefile
View file

@ -71,6 +71,6 @@ sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o
pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK) += pxa2xx_lubbock.o sa1111_generic.o
pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o
pxa2xx_cs-$(CONFIG_PXA_SHARPSL) += pxa2xx_sharpsl.o
pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x270.o
pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x2xx.o pxa2xx_cm_x255.o pxa2xx_cm_x270.o
pxa2xx_cs-$(CONFIG_MACH_PALMTX) += pxa2xx_palmtx.o

154
drivers/pcmcia/pxa2xx_cm_x255.c Normal file
View file

@ -0,0 +1,154 @@
/*
* linux/drivers/pcmcia/pxa/pxa_cm_x255.c
*
* 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.
*
* Compulab Ltd., 2003, 2007, 2008
* Mike Rapoport <mike@compulab.co.il>
*
*/
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <mach/pxa-regs.h>
#include "soc_common.h"
#define GPIO_PCMCIA_SKTSEL (54)
#define GPIO_PCMCIA_S0_CD_VALID (16)
#define GPIO_PCMCIA_S1_CD_VALID (17)
#define GPIO_PCMCIA_S0_RDYINT (6)
#define GPIO_PCMCIA_S1_RDYINT (8)
#define GPIO_PCMCIA_RESET (9)
#define PCMCIA_S0_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID)
#define PCMCIA_S1_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S1_CD_VALID)
#define PCMCIA_S0_RDYINT IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT)
#define PCMCIA_S1_RDYINT IRQ_GPIO(GPIO_PCMCIA_S1_RDYINT)
static struct pcmcia_irqs irqs[] = {
{ 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" },
{ 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" },
};
static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int ret = gpio_request(GPIO_PCMCIA_RESET, "PCCard reset");
if (ret)
return ret;
gpio_direction_output(GPIO_PCMCIA_RESET, 0);
skt->irq = skt->nr == 0 ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT;
ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
if (!ret)
gpio_free(GPIO_PCMCIA_RESET);
return ret;
}
static void cmx255_pcmcia_shutdown(struct soc_pcmcia_socket *skt)
{
soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs));
gpio_free(GPIO_PCMCIA_RESET);
}
static void cmx255_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
int cd = skt->nr ? GPIO_PCMCIA_S1_CD_VALID : GPIO_PCMCIA_S0_CD_VALID;
int rdy = skt->nr ? GPIO_PCMCIA_S0_RDYINT : GPIO_PCMCIA_S1_RDYINT;
state->detect = !gpio_get_value(cd);
state->ready = !!gpio_get_value(rdy);
state->bvd1 = 1;
state->bvd2 = 1;
state->vs_3v = 0;
state->vs_Xv = 0;
state->wrprot = 0; /* not available */
}
static int cmx255_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
switch (skt->nr) {
case 0:
if (state->flags & SS_RESET) {
gpio_set_value(GPIO_PCMCIA_SKTSEL, 0);
udelay(1);
gpio_set_value(GPIO_PCMCIA_RESET, 1);
udelay(10);
gpio_set_value(GPIO_PCMCIA_RESET, 0);
}
break;
case 1:
if (state->flags & SS_RESET) {
gpio_set_value(GPIO_PCMCIA_SKTSEL, 1);
udelay(1);
gpio_set_value(GPIO_PCMCIA_RESET, 1);
udelay(10);
gpio_set_value(GPIO_PCMCIA_RESET, 0);
}
break;
}
return 0;
}
static void cmx255_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
}
static void cmx255_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
}
static struct pcmcia_low_level cmx255_pcmcia_ops __initdata = {
.owner = THIS_MODULE,
.hw_init = cmx255_pcmcia_hw_init,
.hw_shutdown = cmx255_pcmcia_shutdown,
.socket_state = cmx255_pcmcia_socket_state,
.configure_socket = cmx255_pcmcia_configure_socket,
.socket_init = cmx255_pcmcia_socket_init,
.socket_suspend = cmx255_pcmcia_socket_suspend,
.nr = 1,
};
static struct platform_device *cmx255_pcmcia_device;
int __init cmx255_pcmcia_init(void)
{
int ret;
cmx255_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!cmx255_pcmcia_device)
return -ENOMEM;
ret = platform_device_add_data(cmx255_pcmcia_device, &cmx255_pcmcia_ops,
sizeof(cmx255_pcmcia_ops));
if (ret == 0) {
printk(KERN_INFO "Registering cm-x255 PCMCIA interface.\n");
ret = platform_device_add(cmx255_pcmcia_device);
}
if (ret)
platform_device_put(cmx255_pcmcia_device);
return ret;
}
void __exit cmx255_pcmcia_exit(void)
{
platform_device_unregister(cmx255_pcmcia_device);
}

14
drivers/pcmcia/pxa2xx_cm_x270.c
View file

@ -105,13 +105,10 @@ static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = {
static struct platform_device *cmx270_pcmcia_device;
static int __init cmx270_pcmcia_init(void)
int __init cmx270_pcmcia_init(void)
{
int ret;
if (!machine_is_armcore())
return -ENODEV;
cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!cmx270_pcmcia_device)
@ -131,14 +128,7 @@ static int __init cmx270_pcmcia_init(void)
return ret;
}
static void __exit cmx270_pcmcia_exit(void)
void __exit cmx270_pcmcia_exit(void)
{
platform_device_unregister(cmx270_pcmcia_device);
}
module_init(cmx270_pcmcia_init);
module_exit(cmx270_pcmcia_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("CM-x270 PCMCIA driver");

49
drivers/pcmcia/pxa2xx_cm_x2xx.c Normal file
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@ -0,0 +1,49 @@
/*
* linux/drivers/pcmcia/pxa/pxa_cm_x2xx.c
*
* 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.
*
* Compulab Ltd., 2003, 2007, 2008
* Mike Rapoport <mike@compulab.co.il>
*
*/
#include <linux/module.h>
#include <asm/system.h>
#include <asm/mach-types.h>
#include <mach/system.h>
int cmx255_pcmcia_init(void);
int cmx270_pcmcia_init(void);
void cmx255_pcmcia_exit(void);
void cmx270_pcmcia_exit(void);
static int __init cmx2xx_pcmcia_init(void)
{
int ret = -ENODEV;
if (machine_is_armcore() && cpu_is_pxa25x())
ret = cmx255_pcmcia_init();
else if (machine_is_armcore() && cpu_is_pxa27x())
ret = cmx270_pcmcia_init();
return ret;
}
static void __exit cmx2xx_pcmcia_exit(void)
{
if (machine_is_armcore() && cpu_is_pxa25x())
cmx255_pcmcia_exit();
else if (machine_is_armcore() && cpu_is_pxa27x())
cmx270_pcmcia_exit();
}
module_init(cmx2xx_pcmcia_init);
module_exit(cmx2xx_pcmcia_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("CM-x2xx PCMCIA driver");