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Commit ef93f144 authored by Eric Bénard's avatar Eric Bénard Committed by Sascha Hauer
Browse files

i.MX51: add support for cpuimx51 module and its baseboard 



CPUIMX51 is build around Freescale's i.MX515 and has up to
512MB of RAM, NAND Flash, Ethernet, USB Host with 4 ports
hub, USB OTG, ST16554 Quad UART on nCS1, I2C RTC ...

MBIMX51 adds LEDS, Keypad, TSC2007 touchscreen controler ...

Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 84659ab5

arch/arm/mach-mx5/Kconfig

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Original line number Diff line number Diff line
@@ -21,4 +21,25 @@ config MACH_MX51_3DS 
	help

	  Include support for MX51PDK (3DS) platform. This includes specific

	  configurations for the board and its peripherals.



config MACH_EUKREA_CPUIMX51

	bool "Support Eukrea CPUIMX51 module"

	help

	  Include support for Eukrea CPUIMX51 platform. This includes

	  specific configurations for the module and its peripherals.



choice

	prompt "Baseboard"

	depends on MACH_EUKREA_CPUIMX51

	default MACH_EUKREA_MBIMX51_BASEBOARD



config MACH_EUKREA_MBIMX51_BASEBOARD

	prompt "Eukrea MBIMX51 development board"

	bool

	help

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

	  MBIMX51 evaluation board.



endchoice



endif

arch/arm/mach-mx5/Makefile

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@@ -7,3 +7,5 @@ obj-y := cpu.o mm.o clock-mx51.o devices.o 


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

arch/arm/mach-mx5/board-cpuimx51.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/serial_8250.h>

#include <linux/i2c.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 <mach/eukrea-baseboards.h>

#include <mach/common.h>

#include <mach/hardware.h>

#include <mach/imx-uart.h>

#include <mach/iomux-mx51.h>

#include <mach/i2c.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.h"



#define CPUIMX51_USBH1_STP	(0*32 + 27)

#define CPUIMX51_QUARTA_GPIO	(2*32 + 28)

#define CPUIMX51_QUARTB_GPIO	(2*32 + 25)

#define CPUIMX51_QUARTC_GPIO	(2*32 + 26)

#define CPUIMX51_QUARTD_GPIO	(2*32 + 27)

#define CPUIMX51_QUARTA_IRQ	(MXC_INTERNAL_IRQS + CPUIMX51_QUARTA_GPIO)

#define CPUIMX51_QUARTB_IRQ	(MXC_INTERNAL_IRQS + CPUIMX51_QUARTB_GPIO)

#define CPUIMX51_QUARTC_IRQ	(MXC_INTERNAL_IRQS + CPUIMX51_QUARTC_GPIO)

#define CPUIMX51_QUARTD_IRQ	(MXC_INTERNAL_IRQS + CPUIMX51_QUARTD_GPIO)

#define CPUIMX51_QUART_XTAL	14745600

#define CPUIMX51_QUART_REGSHIFT	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



#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)

static struct plat_serial8250_port serial_platform_data[] = {

	{

		.mapbase = (unsigned long)(MX51_CS1_BASE_ADDR + 0x400000),

		.irq = CPUIMX51_QUARTA_IRQ,

		.irqflags = IRQF_TRIGGER_HIGH,

		.uartclk = CPUIMX51_QUART_XTAL,

		.regshift = CPUIMX51_QUART_REGSHIFT,

		.iotype = UPIO_MEM,

		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,

	}, {

		.mapbase = (unsigned long)(MX51_CS1_BASE_ADDR + 0x800000),

		.irq = CPUIMX51_QUARTB_IRQ,

		.irqflags = IRQF_TRIGGER_HIGH,

		.uartclk = CPUIMX51_QUART_XTAL,

		.regshift = CPUIMX51_QUART_REGSHIFT,

		.iotype = UPIO_MEM,

		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,

	}, {

		.mapbase = (unsigned long)(MX51_CS1_BASE_ADDR + 0x1000000),

		.irq = CPUIMX51_QUARTC_IRQ,

		.irqflags = IRQF_TRIGGER_HIGH,

		.uartclk = CPUIMX51_QUART_XTAL,

		.regshift = CPUIMX51_QUART_REGSHIFT,

		.iotype = UPIO_MEM,

		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,

	}, {

		.mapbase = (unsigned long)(MX51_CS1_BASE_ADDR + 0x2000000),

		.irq = CPUIMX51_QUARTD_IRQ,

		.irqflags = IRQF_TRIGGER_HIGH,

		.uartclk = CPUIMX51_QUART_XTAL,

		.regshift = CPUIMX51_QUART_REGSHIFT,

		.iotype = UPIO_MEM,

		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,

	}, {

	}

};



static struct platform_device serial_device = {

	.name = "serial8250",

	.id = 0,

	.dev = {

		.platform_data = serial_platform_data,

	},

};

#endif



static struct platform_device *devices[] __initdata = {

	&mxc_fec_device,

#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)

	&serial_device,

#endif

};



static struct pad_desc eukrea_cpuimx51_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,



	/* I2C2 */

	MX51_PAD_GPIO_1_2__I2C2_SCL,

	MX51_PAD_GPIO_1_3__I2C2_SDA,

	MX51_PAD_NANDF_D10__GPIO_3_30,



	/* QUART IRQ */

	MX51_PAD_NANDF_D15__GPIO_3_25,

	MX51_PAD_NANDF_D14__GPIO_3_26,

	MX51_PAD_NANDF_D13__GPIO_3_27,

	MX51_PAD_NANDF_D12__GPIO_3_28,



	/* 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,

};



static struct imxuart_platform_data uart_pdata = {

	.flags = IMXUART_HAVE_RTSCTS,

};



static struct imxi2c_platform_data eukrea_cpuimx51_i2c_data = {

	.bitrate = 100000,

};



static struct i2c_board_info eukrea_cpuimx51_i2c_devices[] = {

	{

		I2C_BOARD_INFO("pcf8563", 0x51),

	},

};



/* 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 externally 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_cpuimx51_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_cpuimx51_otg_mode);



/*

 * Board specific initialization.

 */

static void __init eukrea_cpuimx51_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx51_pads,

					ARRAY_SIZE(eukrea_cpuimx51_pads));



	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	gpio_request(CPUIMX51_QUARTA_GPIO, "quarta_irq");

	gpio_direction_input(CPUIMX51_QUARTA_GPIO);

	gpio_free(CPUIMX51_QUARTA_GPIO);

	gpio_request(CPUIMX51_QUARTB_GPIO, "quartb_irq");

	gpio_direction_input(CPUIMX51_QUARTB_GPIO);

	gpio_free(CPUIMX51_QUARTB_GPIO);

	gpio_request(CPUIMX51_QUARTC_GPIO, "quartc_irq");

	gpio_direction_input(CPUIMX51_QUARTC_GPIO);

	gpio_free(CPUIMX51_QUARTC_GPIO);

	gpio_request(CPUIMX51_QUARTD_GPIO, "quartd_irq");

	gpio_direction_input(CPUIMX51_QUARTD_GPIO);

	gpio_free(CPUIMX51_QUARTD_GPIO);



	platform_add_devices(devices, ARRAY_SIZE(devices));



	mxc_register_device(&mxc_i2c_device1, &eukrea_cpuimx51_i2c_data);

	i2c_register_board_info(1, eukrea_cpuimx51_i2c_devices,

				ARRAY_SIZE(eukrea_cpuimx51_i2c_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);

	}

	mxc_register_device(&mxc_usbh1_device, &usbh1_config);



#ifdef CONFIG_MACH_EUKREA_MBIMX51_BASEBOARD

	eukrea_mbimx51_baseboard_init();

#endif

}



static void __init eukrea_cpuimx51_timer_init(void)

{

	mx51_clocks_init(32768, 24000000, 22579200, 0);

}



static struct sys_timer mxc_timer = {

	.init	= eukrea_cpuimx51_timer_init,

};



MACHINE_START(EUKREA_CPUIMX51, "Eukrea CPUIMX51 Module")

	/* 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_cpuimx51_init,

	.timer = &mxc_timer,

MACHINE_END

arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c

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Original line number Diff line number Diff line 
/*

 *

 * Copyright (C) 2010 Eric Bénard <eric@eukrea.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/serial_8250.h>

#include <linux/i2c.h>

#include <linux/gpio.h>

#include <linux/io.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/fsl_devices.h>

#include <linux/i2c/tsc2007.h>

#include <linux/leds.h>

#include <linux/input/matrix_keypad.h>



#include <mach/common.h>

#include <mach/hardware.h>

#include <mach/imx-uart.h>

#include <mach/iomux-mx51.h>



#include <asm/mach/arch.h>



#include "devices.h"



#define MBIMX51_TSC2007_GPIO	(2*32 + 30)

#define MBIMX51_TSC2007_IRQ	(MXC_INTERNAL_IRQS + MBIMX51_TSC2007_GPIO)

#define MBIMX51_LED0		(2*32 + 5)

#define MBIMX51_LED1		(2*32 + 6)

#define MBIMX51_LED2		(2*32 + 7)

#define MBIMX51_LED3		(2*32 + 8)



static struct gpio_led mbimx51_leds[] = {

	{

		.name			= "led0",

		.default_trigger	= "heartbeat",

		.active_low		= 1,

		.gpio			= MBIMX51_LED0,

	},

	{

		.name			= "led1",

		.default_trigger	= "nand-disk",

		.active_low		= 1,

		.gpio			= MBIMX51_LED1,

	},

	{

		.name			= "led2",

		.default_trigger	= "mmc0",

		.active_low		= 1,

		.gpio			= MBIMX51_LED2,

	},

	{

		.name			= "led3",

		.default_trigger	= "default-on",

		.active_low		= 1,

		.gpio			= MBIMX51_LED3,

	},

};



static struct gpio_led_platform_data mbimx51_leds_info = {

	.leds		= mbimx51_leds,

	.num_leds	= ARRAY_SIZE(mbimx51_leds),

};



static struct platform_device mbimx51_leds_gpio = {

	.name	= "leds-gpio",

	.id	= -1,

	.dev	= {

		.platform_data	= &mbimx51_leds_info,

	},

};



static struct platform_device *devices[] __initdata = {

	&mbimx51_leds_gpio,

};



static struct pad_desc mbimx51_pads[] = {

	/* UART2 */

	MX51_PAD_UART2_RXD__UART2_RXD,

	MX51_PAD_UART2_TXD__UART2_TXD,



	/* UART3 */

	MX51_PAD_UART3_RXD__UART3_RXD,

	MX51_PAD_UART3_TXD__UART3_TXD,

	MX51_PAD_KEY_COL4__UART3_RTS,

	MX51_PAD_KEY_COL5__UART3_CTS,



	/* TSC2007 IRQ */

	MX51_PAD_NANDF_D10__GPIO_3_30,



	/* LEDS */

	MX51_PAD_DISPB2_SER_DIN__GPIO_3_5,

	MX51_PAD_DISPB2_SER_DIO__GPIO_3_6,

	MX51_PAD_DISPB2_SER_CLK__GPIO_3_7,

	MX51_PAD_DISPB2_SER_RS__GPIO_3_8,



	/* KPP */

	MX51_PAD_KEY_ROW0__KEY_ROW0,

	MX51_PAD_KEY_ROW1__KEY_ROW1,

	MX51_PAD_KEY_ROW2__KEY_ROW2,

	MX51_PAD_KEY_ROW3__KEY_ROW3,

	MX51_PAD_KEY_COL0__KEY_COL0,

	MX51_PAD_KEY_COL1__KEY_COL1,

	MX51_PAD_KEY_COL2__KEY_COL2,

	MX51_PAD_KEY_COL3__KEY_COL3,

};



static struct imxuart_platform_data uart_pdata = {

	.flags = IMXUART_HAVE_RTSCTS,

};



static int mbimx51_keymap[] = {

	KEY(0, 0, KEY_1),

	KEY(0, 1, KEY_2),

	KEY(0, 2, KEY_3),

	KEY(0, 3, KEY_UP),



	KEY(1, 0, KEY_4),

	KEY(1, 1, KEY_5),

	KEY(1, 2, KEY_6),

	KEY(1, 3, KEY_LEFT),



	KEY(2, 0, KEY_7),

	KEY(2, 1, KEY_8),

	KEY(2, 2, KEY_9),

	KEY(2, 3, KEY_RIGHT),



	KEY(3, 0, KEY_0),

	KEY(3, 1, KEY_DOWN),

	KEY(3, 2, KEY_ESC),

	KEY(3, 3, KEY_ENTER),

};



static struct matrix_keymap_data mbimx51_map_data = {

	.keymap		= mbimx51_keymap,

	.keymap_size	= ARRAY_SIZE(mbimx51_keymap),

};



static int tsc2007_get_pendown_state(void)

{

	return !gpio_get_value(MBIMX51_TSC2007_GPIO);

}



struct tsc2007_platform_data tsc2007_data = {

	.model = 2007,

	.x_plate_ohms = 180,

	.get_pendown_state = tsc2007_get_pendown_state,

};



static struct i2c_board_info mbimx51_i2c_devices[] = {

	{

		I2C_BOARD_INFO("tsc2007", 0x48),

		.irq  = MBIMX51_TSC2007_IRQ,

		.platform_data = &tsc2007_data,

	},

};



/*

 * baseboard initialization.

 */

void __init eukrea_mbimx51_baseboard_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,

					ARRAY_SIZE(mbimx51_pads));



	mxc_register_device(&mxc_uart_device1, NULL);

	mxc_register_device(&mxc_uart_device2, &uart_pdata);



	gpio_request(MBIMX51_LED0, "LED0");

	gpio_direction_output(MBIMX51_LED0, 1);

	gpio_free(MBIMX51_LED0);

	gpio_request(MBIMX51_LED1, "LED1");

	gpio_direction_output(MBIMX51_LED1, 1);

	gpio_free(MBIMX51_LED1);

	gpio_request(MBIMX51_LED2, "LED2");

	gpio_direction_output(MBIMX51_LED2, 1);

	gpio_free(MBIMX51_LED2);

	gpio_request(MBIMX51_LED3, "LED3");

	gpio_direction_output(MBIMX51_LED3, 1);

	gpio_free(MBIMX51_LED3);



	platform_add_devices(devices, ARRAY_SIZE(devices));



	mxc_register_device(&mxc_keypad_device, &mbimx51_map_data);



	gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");

	gpio_direction_input(MBIMX51_TSC2007_GPIO);

	set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);

	i2c_register_board_info(1, mbimx51_i2c_devices,

				ARRAY_SIZE(mbimx51_i2c_devices));

}

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

+3 −1
Original line number Diff line number Diff line
@@ -28,17 +28,19 @@ 
 * 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()

 * or eukrea_cpuimx35_init().

 * eukrea_cpuimx35_init() or eukrea_cpuimx51_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

 */



extern void eukrea_mbimx25_baseboard_init(void);

extern void eukrea_mbimx27_baseboard_init(void);

extern void eukrea_mbimx35_baseboard_init(void);

extern void eukrea_mbimx51_baseboard_init(void);



#endif