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Commit 70b17268 authored by Eric Bénard's avatar Eric Bénard Committed by Sascha Hauer
Browse files

mx5: add cpuimx51sd module and its baseboard 



Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
parent b545d9ed

arch/arm/mach-mx5/Kconfig

+25 −0
Original line number Diff line number Diff line
@@ -49,6 +49,31 @@ config MACH_EUKREA_MBIMX51_BASEBOARD 


endchoice



config MACH_EUKREA_CPUIMX51SD

	bool "Support Eukrea CPUIMX51SD module"

	select IMX_HAVE_PLATFORM_IMX_I2C

	select IMX_HAVE_PLATFORM_SPI_IMX

	select IMX_HAVE_PLATFORM_IMX_UART

	select IMX_HAVE_PLATFORM_MXC_NAND

	help

	  Include support for Eukrea CPUIMX51SD platform. This includes

	  specific configurations for the module and its peripherals.



choice

	prompt "Baseboard"

	depends on MACH_EUKREA_CPUIMX51SD

	default MACH_EUKREA_MBIMXSD51_BASEBOARD



config MACH_EUKREA_MBIMXSD51_BASEBOARD

	prompt "Eukrea MBIMXSD development board"

	bool

	select IMX_HAVE_PLATFORM_ESDHC

	help

	  This adds board specific devices that can be found on Eukrea's

	  MBIMXSD evaluation board.



endchoice



config MACH_MX51_EFIKAMX

	bool "Support MX51 Genesi Efika MX nettop"

	select IMX_HAVE_PLATFORM_IMX_UART

arch/arm/mach-mx5/Makefile

+2 −0
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@@ -9,4 +9,6 @@ obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o 
obj-$(CONFIG_MACH_MX51_3DS) += board-mx51_3ds.o

obj-$(CONFIG_MACH_EUKREA_CPUIMX51) += board-cpuimx51.o

obj-$(CONFIG_MACH_EUKREA_MBIMX51_BASEBOARD) += eukrea_mbimx51-baseboard.o

obj-$(CONFIG_MACH_EUKREA_CPUIMX51SD) += board-cpuimx51sd.o

obj-$(CONFIG_MACH_EUKREA_MBIMXSD51_BASEBOARD) += eukrea_mbimxsd-baseboard.o

obj-$(CONFIG_MACH_MX51_EFIKAMX) += board-mx51_efikamx.o

arch/arm/mach-mx5/board-cpuimx51sd.c

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/*

 *

 * Copyright (C) 2010 Eric Bénard <eric@eukrea.com>

 *

 * based on board-mx51_babbage.c which is

 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@canonical.com>

 *

 * The code contained herein is licensed under the GNU General Public

 * License. You may obtain a copy of the GNU General Public License

 * Version 2 or later at the following locations:

 *

 * http://www.opensource.org/licenses/gpl-license.html

 * http://www.gnu.org/copyleft/gpl.html

 */



#include <linux/init.h>

#include <linux/platform_device.h>

#include <linux/i2c.h>

#include <linux/i2c/tsc2007.h>

#include <linux/gpio.h>

#include <linux/delay.h>

#include <linux/io.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/fsl_devices.h>

#include <linux/i2c-gpio.h>

#include <linux/spi/spi.h>

#include <linux/can/platform/mcp251x.h>



#include <mach/eukrea-baseboards.h>

#include <mach/common.h>

#include <mach/hardware.h>

#include <mach/iomux-mx51.h>

#include <mach/mxc_ehci.h>



#include <asm/irq.h>

#include <asm/setup.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>



#include "devices-imx51.h"

#include "devices.h"



#define USBH1_RST		(1*32 + 28)

#define ETH_RST			(1*32 + 31)

#define TSC2007_IRQGPIO		(2*32 + 12)

#define CAN_IRQGPIO		(0*32 + 1)

#define CAN_RST			(3*32 + 15)

#define CAN_NCS			(3*32 + 24)

#define CAN_RXOBF		(0*32 + 4)

#define CAN_RX1BF		(0*32 + 6)

#define CAN_TXORTS		(0*32 + 7)

#define CAN_TX1RTS		(0*32 + 8)

#define CAN_TX2RTS		(0*32 + 9)

#define I2C_SCL			(3*32 + 16)

#define I2C_SDA			(3*32 + 17)



/* USB_CTRL_1 */

#define MX51_USB_CTRL_1_OFFSET		0x10

#define MX51_USB_CTRL_UH1_EXT_CLK_EN	(1 << 25)



#define	MX51_USB_PLLDIV_12_MHZ		0x00

#define	MX51_USB_PLL_DIV_19_2_MHZ	0x01

#define	MX51_USB_PLL_DIV_24_MHZ		0x02



#define CPUIMX51SD_GPIO_3_12 IOMUX_PAD(0x57C, 0x194, 3, 0x0, 0, \

				MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP)



static struct pad_desc eukrea_cpuimx51sd_pads[] = {

	/* UART1 */

	MX51_PAD_UART1_RXD__UART1_RXD,

	MX51_PAD_UART1_TXD__UART1_TXD,

	MX51_PAD_UART1_RTS__UART1_RTS,

	MX51_PAD_UART1_CTS__UART1_CTS,



	/* USB HOST1 */

	MX51_PAD_USBH1_CLK__USBH1_CLK,

	MX51_PAD_USBH1_DIR__USBH1_DIR,

	MX51_PAD_USBH1_NXT__USBH1_NXT,

	MX51_PAD_USBH1_DATA0__USBH1_DATA0,

	MX51_PAD_USBH1_DATA1__USBH1_DATA1,

	MX51_PAD_USBH1_DATA2__USBH1_DATA2,

	MX51_PAD_USBH1_DATA3__USBH1_DATA3,

	MX51_PAD_USBH1_DATA4__USBH1_DATA4,

	MX51_PAD_USBH1_DATA5__USBH1_DATA5,

	MX51_PAD_USBH1_DATA6__USBH1_DATA6,

	MX51_PAD_USBH1_DATA7__USBH1_DATA7,

	MX51_PAD_USBH1_STP__USBH1_STP,

	MX51_PAD_EIM_CS3__GPIO_2_28,		/* PHY nRESET */



	/* FEC */

	MX51_PAD_EIM_DTACK__GPIO_2_31,		/* PHY nRESET */



	/* HSI2C */

	MX51_PAD_I2C1_CLK__GPIO_4_16,

	MX51_PAD_I2C1_DAT__GPIO_4_17,



	/* CAN */

	MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,

	MX51_PAD_CSPI1_MISO__ECSPI1_MISO,

	MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,

	MX51_PAD_CSPI1_SS0__GPIO_4_24,		/* nCS */

	MX51_PAD_CSI2_PIXCLK__GPIO_4_15,	/* nReset */

	MX51_PAD_GPIO_1_1__GPIO_1_1,		/* IRQ */

	MX51_PAD_GPIO_1_4__GPIO_1_4,		/* Control signals */

	MX51_PAD_GPIO_1_6__GPIO_1_6,

	MX51_PAD_GPIO_1_7__GPIO_1_7,

	MX51_PAD_GPIO_1_8__GPIO_1_8,

	MX51_PAD_GPIO_1_9__GPIO_1_9,



	/* Touchscreen */

	CPUIMX51SD_GPIO_3_12,			/* IRQ */

};



static const struct imxuart_platform_data uart_pdata __initconst = {

	.flags = IMXUART_HAVE_RTSCTS,

};



static int ts_get_pendown_state(void)

{

	return gpio_get_value(TSC2007_IRQGPIO) ? 0 : 1;

}



static struct tsc2007_platform_data tsc2007_info = {

	.model			= 2007,

	.x_plate_ohms		= 180,

	.get_pendown_state	= ts_get_pendown_state,

};



static struct i2c_board_info eukrea_cpuimx51sd_i2c_devices[] = {

	{

		I2C_BOARD_INFO("pcf8563", 0x51),

	}, {

		I2C_BOARD_INFO("tsc2007", 0x49),

		.type		= "tsc2007",

		.platform_data	= &tsc2007_info,

		.irq		= gpio_to_irq(TSC2007_IRQGPIO),

	},

};



static const struct mxc_nand_platform_data

		eukrea_cpuimx51sd_nand_board_info __initconst = {

	.width		= 1,

	.hw_ecc		= 1,

	.flash_bbt	= 1,

};



/* This function is board specific as the bit mask for the plldiv will also

be different for other Freescale SoCs, thus a common bitmask is not

possible and cannot get place in /plat-mxc/ehci.c.*/

static int initialize_otg_port(struct platform_device *pdev)

{

	u32 v;

	void __iomem *usb_base;

	void __iomem *usbother_base;



	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);

	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;



	/* Set the PHY clock to 19.2MHz */

	v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);

	v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK;

	v |= MX51_USB_PLL_DIV_19_2_MHZ;

	__raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);

	iounmap(usb_base);

	return 0;

}



static int initialize_usbh1_port(struct platform_device *pdev)

{

	u32 v;

	void __iomem *usb_base;

	void __iomem *usbother_base;



	usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);

	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;



	/* The clock for the USBH1 ULPI port will come from the PHY. */

	v = __raw_readl(usbother_base + MX51_USB_CTRL_1_OFFSET);

	__raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN,

			usbother_base + MX51_USB_CTRL_1_OFFSET);

	iounmap(usb_base);

	return 0;

}



static struct mxc_usbh_platform_data dr_utmi_config = {

	.init		= initialize_otg_port,

	.portsc	= MXC_EHCI_UTMI_16BIT,

	.flags	= MXC_EHCI_INTERNAL_PHY,

};



static struct fsl_usb2_platform_data usb_pdata = {

	.operating_mode	= FSL_USB2_DR_DEVICE,

	.phy_mode	= FSL_USB2_PHY_UTMI_WIDE,

};



static struct mxc_usbh_platform_data usbh1_config = {

	.init		= initialize_usbh1_port,

	.portsc	= MXC_EHCI_MODE_ULPI,

	.flags	= (MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_ITC_NO_THRESHOLD),

};



static int otg_mode_host;



static int __init eukrea_cpuimx51sd_otg_mode(char *options)

{

	if (!strcmp(options, "host"))

		otg_mode_host = 1;

	else if (!strcmp(options, "device"))

		otg_mode_host = 0;

	else

		pr_info("otg_mode neither \"host\" nor \"device\". "

			"Defaulting to device\n");

	return 0;

}

__setup("otg_mode=", eukrea_cpuimx51sd_otg_mode);



static struct i2c_gpio_platform_data pdata = {

	.sda_pin		= I2C_SDA,

	.sda_is_open_drain	= 0,

	.scl_pin		= I2C_SCL,

	.scl_is_open_drain	= 0,

	.udelay			= 2,

};



static struct platform_device hsi2c_gpio_device = {

	.name			= "i2c-gpio",

	.id			= 0,

	.dev.platform_data	= &pdata,

};



static struct mcp251x_platform_data mcp251x_info = {

	.oscillator_frequency = 24E6,

};



static struct spi_board_info cpuimx51sd_spi_device[] = {

	{

		.modalias        = "mcp2515",

		.max_speed_hz    = 6500000,

		.bus_num         = 0,

		.mode		= SPI_MODE_0,

		.chip_select     = 0,

		.platform_data   = &mcp251x_info,

		.irq             = gpio_to_irq(0 * 32 + 1)

	},

};



static int cpuimx51sd_spi1_cs[] = {

	CAN_NCS,

};



static const struct spi_imx_master cpuimx51sd_ecspi1_pdata __initconst = {

	.chipselect	= cpuimx51sd_spi1_cs,

	.num_chipselect	= ARRAY_SIZE(cpuimx51sd_spi1_cs),

};



static struct platform_device *platform_devices[] __initdata = {

	&hsi2c_gpio_device,

};



static void __init eukrea_cpuimx51sd_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx51sd_pads,

					ARRAY_SIZE(eukrea_cpuimx51sd_pads));



	imx51_add_imx_uart(0, &uart_pdata);

	imx51_add_mxc_nand(&eukrea_cpuimx51sd_nand_board_info);



	gpio_request(ETH_RST, "eth_rst");

	gpio_set_value(ETH_RST, 1);

	imx51_add_fec(NULL);



	gpio_request(CAN_IRQGPIO, "can_irq");

	gpio_direction_input(CAN_IRQGPIO);

	gpio_free(CAN_IRQGPIO);

	gpio_request(CAN_NCS, "can_ncs");

	gpio_direction_output(CAN_NCS, 1);

	gpio_free(CAN_NCS);

	gpio_request(CAN_RST, "can_rst");

	gpio_direction_output(CAN_RST, 0);

	msleep(20);

	gpio_set_value(CAN_RST, 1);

	imx51_add_ecspi(0, &cpuimx51sd_ecspi1_pdata);

	spi_register_board_info(cpuimx51sd_spi_device,

				ARRAY_SIZE(cpuimx51sd_spi_device));



	gpio_request(TSC2007_IRQGPIO, "tsc2007_irq");

	gpio_direction_input(TSC2007_IRQGPIO);

	gpio_free(TSC2007_IRQGPIO);



	i2c_register_board_info(0, eukrea_cpuimx51sd_i2c_devices,

			ARRAY_SIZE(eukrea_cpuimx51sd_i2c_devices));

	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));



	if (otg_mode_host)

		mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config);

	else {

		initialize_otg_port(NULL);

		mxc_register_device(&mxc_usbdr_udc_device, &usb_pdata);

	}



	gpio_request(USBH1_RST, "usb_rst");

	gpio_direction_output(USBH1_RST, 0);

	msleep(20);

	gpio_set_value(USBH1_RST, 1);

	mxc_register_device(&mxc_usbh1_device, &usbh1_config);



#ifdef CONFIG_MACH_EUKREA_MBIMXSD51_BASEBOARD

	eukrea_mbimxsd51_baseboard_init();

#endif

}



static void __init eukrea_cpuimx51sd_timer_init(void)

{

	mx51_clocks_init(32768, 24000000, 22579200, 0);

}



static struct sys_timer mxc_timer = {

	.init	= eukrea_cpuimx51sd_timer_init,

};



MACHINE_START(EUKREA_CPUIMX51SD, "Eukrea CPUIMX51SD")

	/* Maintainer: Eric Bénard <eric@eukrea.com> */

	.phys_io = MX51_AIPS1_BASE_ADDR,

	.io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,

	.boot_params = PHYS_OFFSET + 0x100,

	.map_io = mx51_map_io,

	.init_irq = mx51_init_irq,

	.init_machine = eukrea_cpuimx51sd_init,

	.timer = &mxc_timer,

MACHINE_END

arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c

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Original line number Diff line number Diff line 
/*

 * Copyright (C) 2010 Eric Benard - eric@eukrea.com

 *

 * Based on pcm970-baseboard.c which is :

 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.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 the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 */



#include <linux/types.h>

#include <linux/init.h>



#include <linux/gpio.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/leds.h>

#include <linux/platform_device.h>

#include <linux/gpio_keys.h>

#include <linux/input.h>

#include <linux/i2c.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>

#include <asm/mach/map.h>



#include <mach/hardware.h>

#include <mach/common.h>

#include <mach/imx-uart.h>

#include <mach/iomux-mx51.h>

#include <mach/audmux.h>



#include "devices-imx51.h"

#include "devices.h"



#define MBIMXSD_GPIO_3_31 IOMUX_PAD(0x554, 0x16C, 3, 0x0, 0, \

				MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP)



static struct pad_desc eukrea_mbimxsd_pads[] = {

	/* LED */

	MX51_PAD_NANDF_D10__GPIO_3_30,

	/* SWITCH */

	MBIMXSD_GPIO_3_31,

	/* UART2 */

	MX51_PAD_UART2_RXD__UART2_RXD,

	MX51_PAD_UART2_TXD__UART2_TXD,

	/* UART 3 */

	MX51_PAD_UART3_RXD__UART3_RXD,

	MX51_PAD_UART3_TXD__UART3_TXD,

	MX51_PAD_KEY_COL4__UART3_RTS,

	MX51_PAD_KEY_COL5__UART3_CTS,

	/* SD */

	MX51_PAD_SD1_CMD__SD1_CMD,

	MX51_PAD_SD1_CLK__SD1_CLK,

	MX51_PAD_SD1_DATA0__SD1_DATA0,

	MX51_PAD_SD1_DATA1__SD1_DATA1,

	MX51_PAD_SD1_DATA2__SD1_DATA2,

	MX51_PAD_SD1_DATA3__SD1_DATA3,

};



#define GPIO_LED1	(2 * 32 + 30)

#define GPIO_SWITCH1	(2 * 32 + 31)



static struct gpio_led eukrea_mbimxsd_leds[] = {

	{

		.name			= "led1",

		.default_trigger	= "heartbeat",

		.active_low		= 1,

		.gpio			= GPIO_LED1,

	},

};



static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {

	.leds		= eukrea_mbimxsd_leds,

	.num_leds	= ARRAY_SIZE(eukrea_mbimxsd_leds),

};



static struct platform_device eukrea_mbimxsd_leds_gpio = {

	.name	= "leds-gpio",

	.id	= -1,

	.dev	= {

		.platform_data	= &eukrea_mbimxsd_led_info,

	},

};



static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {

	{

		.gpio		= GPIO_SWITCH1,

		.code		= BTN_0,

		.desc		= "BP1",

		.active_low	= 1,

		.wakeup		= 1,

	},

};



static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {

	.buttons	= eukrea_mbimxsd_gpio_buttons,

	.nbuttons	= ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),

};



static struct platform_device eukrea_mbimxsd_button_device = {

	.name		= "gpio-keys",

	.id		= -1,

	.num_resources	= 0,

	.dev		= {

		.platform_data	= &eukrea_mbimxsd_button_data,

	}

};



static struct platform_device *platform_devices[] __initdata = {

	&eukrea_mbimxsd_leds_gpio,

	&eukrea_mbimxsd_button_device,

};



static const struct imxuart_platform_data uart_pdata __initconst = {

	.flags = IMXUART_HAVE_RTSCTS,

};



static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {

	{

		I2C_BOARD_INFO("tlv320aic23", 0x1a),

	},

};



/*

 * system init for baseboard usage. Will be called by cpuimx51sd init.

 *

 * Add platform devices present on this baseboard and init

 * them from CPU side as far as required to use them later on

 */

void __init eukrea_mbimxsd51_baseboard_init(void)

{

	if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,

			ARRAY_SIZE(eukrea_mbimxsd_pads)))

		printk(KERN_ERR "error setting mbimxsd pads !\n");



	imx51_add_imx_uart(1, NULL);

	imx51_add_imx_uart(2, &uart_pdata);



	imx51_add_esdhc(0, NULL);



	gpio_request(GPIO_LED1, "LED1");

	gpio_direction_output(GPIO_LED1, 1);

	gpio_free(GPIO_LED1);



	gpio_request(GPIO_SWITCH1, "SWITCH1");

	gpio_direction_input(GPIO_SWITCH1);

	gpio_free(GPIO_SWITCH1);



	i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,

				ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));



	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));

}

arch/arm/plat-mxc/include/mach/eukrea-baseboards.h

+4 −1
Original line number Diff line number Diff line
@@ -28,19 +28,22 @@ 
 * its own devices, it calls baseboard's init function.

 * TODO: Add your own baseboard init function and call it from

 * inside eukrea_cpuimx25_init() eukrea_cpuimx27_init()

 * eukrea_cpuimx35_init() or eukrea_cpuimx51_init().

 * eukrea_cpuimx35_init() eukrea_cpuimx51_init()

 * or eukrea_cpuimx51sd_init().

 *

 * This example here is for the development board. Refer

 * mach-mx25/eukrea_mbimxsd-baseboard.c for cpuimx25

 * mach-imx/eukrea_mbimx27-baseboard.c for cpuimx27

 * mach-mx3/eukrea_mbimxsd-baseboard.c for cpuimx35

 * mach-mx5/eukrea_mbimx51-baseboard.c for cpuimx51

 * mach-mx5/eukrea_mbimxsd-baseboard.c for cpuimx51sd

 */



extern void eukrea_mbimxsd25_baseboard_init(void);

extern void eukrea_mbimx27_baseboard_init(void);

extern void eukrea_mbimxsd35_baseboard_init(void);

extern void eukrea_mbimx51_baseboard_init(void);

extern void eukrea_mbimxsd51_baseboard_init(void);



#endif