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ARM: MX3: add SPI devices for mx31lite

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

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Daniel Mack 2009-11-19 12:02:08 +01:00 committed by Sascha Hauer
parent 364cd540f0
commit 84677d114a
2 changed files with 71 additions and 2 deletions
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24
arch/arm/mach-mx3/mx31lite-db.c
View File

@ -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);
}

49
arch/arm/mach-mx3/mx31lite.c
View File

@ -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");