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[ARM] 5154/1: PalmTX PCMCIA

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This patch adds PCMCIA support for PalmTX handheld computer.
There is one chip hard-soldered to slot0, another slot is
not in use and not accessible.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Marek Vašut 2008-07-07 17:28:59 +01:00 committed by Russell King
parent b5e4ad57ee
commit 359784084f
4 changed files with 133 additions and 1 deletions
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12
arch/arm/mach-pxa/palmtx.c
View File

@ -69,6 +69,18 @@ static unsigned long palmtx_pin_config[] __initdata = {
/* USB */
GPIO13_GPIO,
/* PCMCIA */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO79_PSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
};
/******************************************************************************

3
drivers/pcmcia/Kconfig
View File

@ -219,7 +219,8 @@ config PCMCIA_SA1111
config PCMCIA_PXA2XX
tristate "PXA2xx support"
depends on ARM && ARCH_PXA && PCMCIA
depends on ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL || MACH_ARMCORE
depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \
|| MACH_ARMCORE || ARCH_PXA_PALM)
help
Say Y here to include support for the PXA2xx PCMCIA controller

1
drivers/pcmcia/Makefile
View File

@ -71,4 +71,5 @@ 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_PALMTX) += pxa2xx_palmtx.o

118
drivers/pcmcia/pxa2xx_palmtx.c Normal file
View File

@ -0,0 +1,118 @@
/*
* linux/drivers/pcmcia/pxa2xx_palmtx.c
*
* Driver for Palm T|X PCMCIA
*
* Copyright (C) 2007-2008 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 <asm/mach-types.h>
#include <asm/arch/gpio.h>
#include <asm/arch/palmtx.h>
#include "soc_common.h"
static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
skt->irq = IRQ_GPIO(GPIO_NR_PALMTX_PCMCIA_READY);
return 0;
}
static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
}
static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
state->detect = 1; /* always inserted */
state->ready = !!gpio_get_value(GPIO_NR_PALMTX_PCMCIA_READY);
state->bvd1 = 1;
state->bvd2 = 1;
state->wrprot = 0;
state->vs_3v = 1;
state->vs_Xv = 0;
}
static int
palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
!!(state->flags & SS_RESET));
return 0;
}
static void palmtx_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
}
static void palmtx_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
}
static struct pcmcia_low_level palmtx_pcmcia_ops = {
.owner = THIS_MODULE,
.first = 0,
.nr = 1,
.hw_init = palmtx_pcmcia_hw_init,
.hw_shutdown = palmtx_pcmcia_hw_shutdown,
.socket_state = palmtx_pcmcia_socket_state,
.configure_socket = palmtx_pcmcia_configure_socket,
.socket_init = palmtx_pcmcia_socket_init,
.socket_suspend = palmtx_pcmcia_socket_suspend,
};
static struct platform_device *palmtx_pcmcia_device;
static int __init palmtx_pcmcia_init(void)
{
int ret;
if (!machine_is_palmtx())
return -ENODEV;
palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!palmtx_pcmcia_device)
return -ENOMEM;
ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
sizeof(palmtx_pcmcia_ops));
if (!ret)
ret = platform_device_add(palmtx_pcmcia_device);
if (ret)
platform_device_put(palmtx_pcmcia_device);
return ret;
}
static void __exit palmtx_pcmcia_exit(void)
{
platform_device_unregister(palmtx_pcmcia_device);
}
fs_initcall(palmtx_pcmcia_init);
module_exit(palmtx_pcmcia_exit);
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("PCMCIA support for Palm T|X");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_LICENSE("GPL");