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Commit 84677d11 authored by Daniel Mack's avatar Daniel Mack Committed by Sascha Hauer
Browse files

ARM: MX3: add SPI devices for mx31lite 



Some header files were reordered while I was at it.
The only device currently registered is the ATLAS PMIC (MC13783) chip.

Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 364cd540

arch/arm/mach-mx3/mx31lite-db.c

+24 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/types.h>

#include <linux/init.h>

#include <linux/gpio.h>

#include <linux/platform_device.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -39,6 +40,7 @@ 
#include <mach/iomux-mx3.h>

#include <mach/board-mx31lite.h>

#include <mach/mmc.h>

#include <mach/spi.h>



#include "devices.h"
@@ -55,6 +57,14 @@ static unsigned int litekit_db_board_pins[] __initdata = { 
	MX31_PIN_RTS1__RTS1,

	MX31_PIN_TXD1__TXD1,

	MX31_PIN_RXD1__RXD1,

	/* SPI 0 */

	MX31_PIN_CSPI1_SCLK__SCLK,

	MX31_PIN_CSPI1_MOSI__MOSI,

	MX31_PIN_CSPI1_MISO__MISO,

	MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,

	MX31_PIN_CSPI1_SS0__SS0,

	MX31_PIN_CSPI1_SS1__SS1,

	MX31_PIN_CSPI1_SS2__SS2,

};



/* UART */
@@ -130,6 +140,19 @@ static struct imxmmc_platform_data mmc_pdata = { 
	.exit	   = mxc_mmc1_exit,

};



/* SPI */



static int spi_internal_chipselect[] = {

	MXC_SPI_CS(0),

	MXC_SPI_CS(1),

	MXC_SPI_CS(2),

};



static struct spi_imx_master spi0_pdata = {

	.chipselect	= spi_internal_chipselect,

	.num_chipselect	= ARRAY_SIZE(spi_internal_chipselect),

};



void __init mx31lite_db_init(void)

{

	mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
@@ -137,5 +160,6 @@ void __init mx31lite_db_init(void) 
					"development board pins");

	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxcsdhc_device0, &mmc_pdata);

	mxc_register_device(&mxc_spi_device0, &spi0_pdata);

}

arch/arm/mach-mx3/mx31lite.c

+47 −2
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
 *  Copyright (C) 2000 Deep Blue Solutions Ltd

 *  Copyright (C) 2002 Shane Nay (shane@minirl.com)

 *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.

 *  Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by
@@ -25,20 +26,25 @@ 
#include <linux/platform_device.h>

#include <linux/gpio.h>

#include <linux/smsc911x.h>

#include <linux/mfd/mc13783.h>

#include <linux/spi/spi.h>



#include <mach/hardware.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>

#include <asm/mach/map.h>

#include <mach/common.h>

#include <asm/page.h>

#include <asm/setup.h>



#include <mach/hardware.h>

#include <mach/common.h>

#include <mach/board-mx31lite.h>

#include <mach/imx-uart.h>

#include <mach/iomux-mx3.h>

#include <mach/irqs.h>

#include <mach/mxc_nand.h>

#include <mach/spi.h>



#include "devices.h"



/*
@@ -48,6 +54,14 @@ 
static unsigned int mx31lite_pins[] = {

	/* LAN9117 IRQ pin */

	IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),

	/* SPI 1 */

	MX31_PIN_CSPI2_SCLK__SCLK,

	MX31_PIN_CSPI2_MOSI__MOSI,

	MX31_PIN_CSPI2_MISO__MISO,

	MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,

	MX31_PIN_CSPI2_SS0__SS0,

	MX31_PIN_CSPI2_SS1__SS1,

	MX31_PIN_CSPI2_SS2__SS2,

};



static struct mxc_nand_platform_data mx31lite_nand_board_info = {
@@ -83,6 +97,35 @@ static struct platform_device smsc911x_device = { 
	},

};



/*

 * SPI

 *

 * The MC13783 is the only hard-wired SPI device on the module.

 */



static int spi_internal_chipselect[] = {

	MXC_SPI_CS(0),

};



static struct spi_imx_master spi1_pdata = {

	.chipselect	= spi_internal_chipselect,

	.num_chipselect	= ARRAY_SIZE(spi_internal_chipselect),

};



static struct mc13783_platform_data mc13783_pdata __initdata = {

	.flags  = MC13783_USE_RTC |

		  MC13783_USE_REGULATOR,

};



static struct spi_board_info mc13783_spi_dev __initdata = {

	.modalias       = "mc13783",

	.max_speed_hz   = 1000000,

	.bus_num	= 1,

	.chip_select    = 0,

	.platform_data  = &mc13783_pdata,

	.irq		= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),

};



/*

 * This structure defines the MX31 memory map.

 */
@@ -131,6 +174,8 @@ static void __init mxc_board_init(void) 
				      "mx31lite");



	mxc_register_device(&mxc_nand_device, &mx31lite_nand_board_info);

	mxc_register_device(&mxc_spi_device1, &spi1_pdata);

	spi_register_board_info(&mc13783_spi_dev, 1);



	/* SMSC9117 IRQ pin */

	ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");