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Commit addff0fa authored by Marek Vasut's avatar Marek Vasut Committed by Eric Miao
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[ARM] pxa: add support for Voipac PXA270 PCMCIA 



PCMCIA support for Voipac PXA270

Signed-off-by: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent 543cd842

arch/arm/mach-pxa/include/mach/vpac270.h

+8 −0
Original line number Diff line number Diff line
@@ -23,4 +23,12 @@ 
#define	GPIO52_VPAC270_SD_READONLY	52

#define	GPIO53_VPAC270_SD_DETECT_N	53



#define	GPIO84_VPAC270_PCMCIA_CD	84

#define	GPIO35_VPAC270_PCMCIA_RDY	35

#define	GPIO107_VPAC270_PCMCIA_PPEN	107

#define	GPIO11_VPAC270_PCMCIA_RESET	11

#define	GPIO17_VPAC270_CF_CD		17

#define	GPIO12_VPAC270_CF_RDY		12

#define	GPIO16_VPAC270_CF_RESET		16



#endif

arch/arm/mach-pxa/vpac270.c

+20 −0
Original line number Diff line number Diff line
@@ -85,6 +85,26 @@ static unsigned long vpac270_pin_config[] __initdata = { 
	GPIO75_LCD_LCLK,

	GPIO76_LCD_PCLK,

	GPIO77_LCD_BIAS,



	/* PCMCIA */

	GPIO48_nPOE,

	GPIO49_nPWE,

	GPIO50_nPIOR,

	GPIO51_nPIOW,

	GPIO85_nPCE_1,

	GPIO54_nPCE_2,

	GPIO55_nPREG,

	GPIO57_nIOIS16,

	GPIO56_nPWAIT,

	GPIO104_PSKTSEL,

	GPIO84_GPIO,	/* PCMCIA CD */

	GPIO35_GPIO,	/* PCMCIA RDY */

	GPIO107_GPIO,	/* PCMCIA PPEN */

	GPIO11_GPIO,	/* PCMCIA RESET */

	GPIO17_GPIO,	/* CF CD */

	GPIO12_GPIO,	/* CF RDY */

	GPIO16_GPIO,	/* CF RESET */



};



/******************************************************************************

drivers/pcmcia/Kconfig

+2 −1
Original line number Diff line number Diff line
@@ -234,7 +234,8 @@ config PCMCIA_PXA2XX 
	depends on ARM && ARCH_PXA && PCMCIA

	depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \

		    || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \

		    || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2)

		    || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \

		    || MACH_VPAC270)

	select PCMCIA_SOC_COMMON

	help

	  Say Y here to include support for the PXA2xx PCMCIA controller

drivers/pcmcia/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -66,6 +66,7 @@ pxa2xx-obj-$(CONFIG_MACH_PALMTC) += pxa2xx_palmtc.o 
pxa2xx-obj-$(CONFIG_MACH_PALMLD)		+= pxa2xx_palmld.o

pxa2xx-obj-$(CONFIG_MACH_E740)			+= pxa2xx_e740.o

pxa2xx-obj-$(CONFIG_MACH_STARGATE2)		+= pxa2xx_stargate2.o

pxa2xx-obj-$(CONFIG_MACH_VPAC270)		+= pxa2xx_vpac270.o



obj-$(CONFIG_PCMCIA_PXA2XX)			+= pxa2xx_base.o $(pxa2xx-obj-y)

drivers/pcmcia/pxa2xx_vpac270.c

0 → 100644
+229 −0
Original line number Diff line number Diff line 
/*

 * linux/drivers/pcmcia/pxa2xx_vpac270.c

 *

 * Driver for Voipac PXA270 PCMCIA and CF sockets

 *

 * 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 <asm/mach-types.h>



#include <mach/gpio.h>

#include <mach/vpac270.h>



#include "soc_common.h"



static struct pcmcia_irqs cd_irqs[] = {

	{

		.sock = 0,

		.irq  = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD),

		.str  = "PCMCIA CD"

	},

	{

		.sock = 1,

		.irq  = IRQ_GPIO(GPIO17_VPAC270_CF_CD),

		.str  = "CF CD"

	},

};



static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)

{

	int ret;



	if (skt->nr == 0) {

		ret = gpio_request(GPIO84_VPAC270_PCMCIA_CD, "PCMCIA CD");

		if (ret)

			goto err1;

		ret = gpio_direction_input(GPIO84_VPAC270_PCMCIA_CD);

		if (ret)

			goto err2;



		ret = gpio_request(GPIO35_VPAC270_PCMCIA_RDY, "PCMCIA RDY");

		if (ret)

			goto err2;

		ret = gpio_direction_input(GPIO35_VPAC270_PCMCIA_RDY);

		if (ret)

			goto err3;



		ret = gpio_request(GPIO107_VPAC270_PCMCIA_PPEN, "PCMCIA PPEN");

		if (ret)

			goto err3;

		ret = gpio_direction_output(GPIO107_VPAC270_PCMCIA_PPEN, 0);

		if (ret)

			goto err4;



		ret = gpio_request(GPIO11_VPAC270_PCMCIA_RESET, "PCMCIA RESET");

		if (ret)

			goto err4;

		ret = gpio_direction_output(GPIO11_VPAC270_PCMCIA_RESET, 0);

		if (ret)

			goto err5;



		skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);



		return soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);



err5:

		gpio_free(GPIO11_VPAC270_PCMCIA_RESET);

err4:

		gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);

err3:

		gpio_free(GPIO35_VPAC270_PCMCIA_RDY);

err2:

		gpio_free(GPIO84_VPAC270_PCMCIA_CD);

err1:

		return ret;



	} else {

		ret = gpio_request(GPIO17_VPAC270_CF_CD, "CF CD");

		if (ret)

			goto err6;

		ret = gpio_direction_input(GPIO17_VPAC270_CF_CD);

		if (ret)

			goto err7;



		ret = gpio_request(GPIO12_VPAC270_CF_RDY, "CF RDY");

		if (ret)

			goto err7;

		ret = gpio_direction_input(GPIO12_VPAC270_CF_RDY);

		if (ret)

			goto err8;



		ret = gpio_request(GPIO16_VPAC270_CF_RESET, "CF RESET");

		if (ret)

			goto err8;

		ret = gpio_direction_output(GPIO16_VPAC270_CF_RESET, 0);

		if (ret)

			goto err9;



		skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);



		return soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);



err9:

		gpio_free(GPIO16_VPAC270_CF_RESET);

err8:

		gpio_free(GPIO12_VPAC270_CF_RDY);

err7:

		gpio_free(GPIO17_VPAC270_CF_CD);

err6:

		return ret;



	}

}



static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)

{

	gpio_free(GPIO11_VPAC270_PCMCIA_RESET);

	gpio_free(GPIO107_VPAC270_PCMCIA_PPEN);

	gpio_free(GPIO35_VPAC270_PCMCIA_RDY);

	gpio_free(GPIO84_VPAC270_PCMCIA_CD);

	gpio_free(GPIO16_VPAC270_CF_RESET);

	gpio_free(GPIO12_VPAC270_CF_RDY);

	gpio_free(GPIO17_VPAC270_CF_CD);

}



static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,

					struct pcmcia_state *state)

{

	if (skt->nr == 0) {

		state->detect = !gpio_get_value(GPIO84_VPAC270_PCMCIA_CD);

		state->ready  = !!gpio_get_value(GPIO35_VPAC270_PCMCIA_RDY);

	} else {

		state->detect = !gpio_get_value(GPIO17_VPAC270_CF_CD);

		state->ready  = !!gpio_get_value(GPIO12_VPAC270_CF_RDY);

	}

	state->bvd1   = 1;

	state->bvd2   = 1;

	state->wrprot = 0;

	state->vs_3v  = 1;

	state->vs_Xv  = 0;

}



static int

vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,

				const socket_state_t *state)

{

	if (skt->nr == 0) {

		gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,

			(state->flags & SS_RESET));

		gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,

			!(state->Vcc == 33 || state->Vcc == 50));

	} else {

		gpio_set_value(GPIO16_VPAC270_CF_RESET,

			(state->flags & SS_RESET));

	}



	return 0;

}



static void vpac270_pcmcia_socket_init(struct soc_pcmcia_socket *skt)

{

}



static void vpac270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)

{

}



static struct pcmcia_low_level vpac270_pcmcia_ops = {

	.owner			= THIS_MODULE,



	.first			= 0,

	.nr			= 2,



	.hw_init		= vpac270_pcmcia_hw_init,

	.hw_shutdown		= vpac270_pcmcia_hw_shutdown,



	.socket_state		= vpac270_pcmcia_socket_state,

	.configure_socket	= vpac270_pcmcia_configure_socket,



	.socket_init		= vpac270_pcmcia_socket_init,

	.socket_suspend		= vpac270_pcmcia_socket_suspend,

};



static struct platform_device *vpac270_pcmcia_device;



static int __init vpac270_pcmcia_init(void)

{

	int ret;



	if (!machine_is_vpac270())

		return -ENODEV;



	vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);

	if (!vpac270_pcmcia_device)

		return -ENOMEM;



	ret = platform_device_add_data(vpac270_pcmcia_device,

		&vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));



	if (!ret)

		ret = platform_device_add(vpac270_pcmcia_device);



	if (ret)

		platform_device_put(vpac270_pcmcia_device);



	return ret;

}



static void __exit vpac270_pcmcia_exit(void)

{

	platform_device_unregister(vpac270_pcmcia_device);

}



module_init(vpac270_pcmcia_init);

module_exit(vpac270_pcmcia_exit);



MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");

MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");

MODULE_ALIAS("platform:pxa2xx-pcmcia");

MODULE_LICENSE("GPL");