arch/arm/mach-mx5/board-mx53_ard.c - linux - Git at Google

 /*
  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
  */

 /*
  * 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/init.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/smsc911x.h>

 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/iomux-mx53.h>

 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>

 #include "crm_regs.h"
 #include "devices-imx53.h"

 #define ARD_ETHERNET_INT_B	IMX_GPIO_NR(2, 31)
 #define ARD_SD1_CD		IMX_GPIO_NR(1, 1)
 #define ARD_SD1_WP		IMX_GPIO_NR(1, 9)
 #define ARD_I2CPORTEXP_B	IMX_GPIO_NR(2, 3)
 #define ARD_VOLUMEDOWN		IMX_GPIO_NR(4, 0)
 #define ARD_HOME			IMX_GPIO_NR(5, 10)
 #define ARD_BACK			IMX_GPIO_NR(5, 11)
 #define ARD_PROG			IMX_GPIO_NR(5, 12)
 #define ARD_VOLUMEUP		IMX_GPIO_NR(5, 13)

 static iomux_v3_cfg_t mx53_ard_pads[] = {
 	/* UART1 */
 	MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
 	MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
 	/* WEIM for CS1 */
 	MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */
 	MX53_PAD_EIM_D16__EMI_WEIM_D_16,
 	MX53_PAD_EIM_D17__EMI_WEIM_D_17,
 	MX53_PAD_EIM_D18__EMI_WEIM_D_18,
 	MX53_PAD_EIM_D19__EMI_WEIM_D_19,
 	MX53_PAD_EIM_D20__EMI_WEIM_D_20,
 	MX53_PAD_EIM_D21__EMI_WEIM_D_21,
 	MX53_PAD_EIM_D22__EMI_WEIM_D_22,
 	MX53_PAD_EIM_D23__EMI_WEIM_D_23,
 	MX53_PAD_EIM_D24__EMI_WEIM_D_24,
 	MX53_PAD_EIM_D25__EMI_WEIM_D_25,
 	MX53_PAD_EIM_D26__EMI_WEIM_D_26,
 	MX53_PAD_EIM_D27__EMI_WEIM_D_27,
 	MX53_PAD_EIM_D28__EMI_WEIM_D_28,
 	MX53_PAD_EIM_D29__EMI_WEIM_D_29,
 	MX53_PAD_EIM_D30__EMI_WEIM_D_30,
 	MX53_PAD_EIM_D31__EMI_WEIM_D_31,
 	MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
 	MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
 	MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
 	MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
 	MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
 	MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
 	MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
 	MX53_PAD_EIM_OE__EMI_WEIM_OE,
 	MX53_PAD_EIM_RW__EMI_WEIM_RW,
 	MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
 	/* SDHC1 */
 	MX53_PAD_SD1_CMD__ESDHC1_CMD,
 	MX53_PAD_SD1_CLK__ESDHC1_CLK,
 	MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
 	MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
 	MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
 	MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
 	MX53_PAD_PATA_DATA8__ESDHC1_DAT4,
 	MX53_PAD_PATA_DATA9__ESDHC1_DAT5,
 	MX53_PAD_PATA_DATA10__ESDHC1_DAT6,
 	MX53_PAD_PATA_DATA11__ESDHC1_DAT7,
 	MX53_PAD_GPIO_1__GPIO1_1,
 	MX53_PAD_GPIO_9__GPIO1_9,
 	/* I2C2 */
 	MX53_PAD_EIM_EB2__I2C2_SCL,
 	MX53_PAD_KEY_ROW3__I2C2_SDA,
 	/* I2C3 */
 	MX53_PAD_GPIO_3__I2C3_SCL,
 	MX53_PAD_GPIO_16__I2C3_SDA,
 	/* GPIO */
 	MX53_PAD_DISP0_DAT16__GPIO5_10,	/* home */
 	MX53_PAD_DISP0_DAT17__GPIO5_11,	/* back */
 	MX53_PAD_DISP0_DAT18__GPIO5_12,	/* prog */
 	MX53_PAD_DISP0_DAT19__GPIO5_13,	/* vol up */
 	MX53_PAD_GPIO_10__GPIO4_0,		/* vol down */
 };

 #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake)	\
 {							\
 	.gpio		= gpio_num,				\
 	.type		= EV_KEY,				\
 	.code		= ev_code,				\
 	.active_low	= act_low,				\
 	.desc		= "btn " descr,			\
 	.wakeup		= wake,					\
 }

 static struct gpio_keys_button ard_buttons[] = {
 	GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0),
 	GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0),
 	GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0),
 	GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0),
 	GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0),
 };

 static const struct gpio_keys_platform_data ard_button_data __initconst = {
 	.buttons        = ard_buttons,
 	.nbuttons       = ARRAY_SIZE(ard_buttons),
 };

 static struct resource ard_smsc911x_resources[] = {
 	{
 		.start = MX53_CS1_64MB_BASE_ADDR,
 		.end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1,
 		.flags = IORESOURCE_MEM,
 	},
 	{
 		.start =  gpio_to_irq(ARD_ETHERNET_INT_B),
 		.end =  gpio_to_irq(ARD_ETHERNET_INT_B),
 		.flags = IORESOURCE_IRQ,
 	},
 };

 struct smsc911x_platform_config ard_smsc911x_config = {
 	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
 	.flags = SMSC911X_USE_32BIT,
 };

 static struct platform_device ard_smsc_lan9220_device = {
 	.name = "smsc911x",
 	.id = -1,
 	.num_resources = ARRAY_SIZE(ard_smsc911x_resources),
 	.resource = ard_smsc911x_resources,
 	.dev = {
 		.platform_data = &ard_smsc911x_config,
 	},
 };

 static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = {
 	.cd_gpio = ARD_SD1_CD,
 	.wp_gpio = ARD_SD1_WP,
 };

 static struct imxi2c_platform_data mx53_ard_i2c2_data = {
 	.bitrate = 50000,
 };

 static struct imxi2c_platform_data mx53_ard_i2c3_data = {
 	.bitrate = 400000,
 };

 static void __init mx53_ard_io_init(void)
 {
 	mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
 				ARRAY_SIZE(mx53_ard_pads));

 	gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
 	gpio_direction_input(ARD_ETHERNET_INT_B);

 	gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst");
 	gpio_direction_output(ARD_I2CPORTEXP_B, 1);
 }

 /* Config CS1 settings for ethernet controller */
 static int weim_cs_config(void)
 {
 	u32 reg;
 	void __iomem *weim_base, *iomuxc_base;

 	weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K);
 	if (!weim_base)
 		return -ENOMEM;

 	iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K);
 	if (!iomuxc_base)
 		return -ENOMEM;

 	/* CS1 timings for LAN9220 */
 	writel(0x20001, (weim_base + 0x18));
 	writel(0x0, (weim_base + 0x1C));
 	writel(0x16000202, (weim_base + 0x20));
 	writel(0x00000002, (weim_base + 0x24));
 	writel(0x16002082, (weim_base + 0x28));
 	writel(0x00000000, (weim_base + 0x2C));
 	writel(0x00000000, (weim_base + 0x90));

 	/* specify 64 MB on CS1 and CS0 on GPR1 */
 	reg = readl(iomuxc_base + 0x4);
 	reg &= ~0x3F;
 	reg |= 0x1B;
 	writel(reg, (iomuxc_base + 0x4));

 	iounmap(iomuxc_base);
 	iounmap(weim_base);

 	return 0;
 }

 static struct platform_device *devices[] __initdata = {
 	&ard_smsc_lan9220_device,
 };

 static void __init mx53_ard_board_init(void)
 {
 	imx53_soc_init();
 	imx53_add_imx_uart(0, NULL);

 	mx53_ard_io_init();
 	weim_cs_config();
 	platform_add_devices(devices, ARRAY_SIZE(devices));

 	imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);
 	imx53_add_imx2_wdt(0, NULL);
 	imx53_add_imx_i2c(1, &mx53_ard_i2c2_data);
 	imx53_add_imx_i2c(2, &mx53_ard_i2c3_data);
 	imx_add_gpio_keys(&ard_button_data);
 }

 static void __init mx53_ard_timer_init(void)
 {
 	mx53_clocks_init(32768, 24000000, 22579200, 0);
 }

 static struct sys_timer mx53_ard_timer = {
 	.init	= mx53_ard_timer_init,
 };

 MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board")
 	.map_io = mx53_map_io,
 	.init_early = imx53_init_early,
 	.init_irq = mx53_init_irq,
 	.timer = &mx53_ard_timer,
 	.init_machine = mx53_ard_board_init,
 MACHINE_END
	/*
	* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
	*/

	/*
	* 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/init.h>
	#include <linux/clk.h>
	#include <linux/delay.h>
	#include <linux/gpio.h>
	#include <linux/smsc911x.h>

	#include <mach/common.h>
	#include <mach/hardware.h>
	#include <mach/iomux-mx53.h>

	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/time.h>

	#include "crm_regs.h"
	#include "devices-imx53.h"

	#define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31)
	#define ARD_SD1_CD IMX_GPIO_NR(1, 1)
	#define ARD_SD1_WP IMX_GPIO_NR(1, 9)
	#define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3)
	#define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0)
	#define ARD_HOME IMX_GPIO_NR(5, 10)
	#define ARD_BACK IMX_GPIO_NR(5, 11)
	#define ARD_PROG IMX_GPIO_NR(5, 12)
	#define ARD_VOLUMEUP IMX_GPIO_NR(5, 13)

	static iomux_v3_cfg_t mx53_ard_pads[] = {
	/* UART1 */
	MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
	MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
	/* WEIM for CS1 */
	MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */
	MX53_PAD_EIM_D16__EMI_WEIM_D_16,
	MX53_PAD_EIM_D17__EMI_WEIM_D_17,
	MX53_PAD_EIM_D18__EMI_WEIM_D_18,
	MX53_PAD_EIM_D19__EMI_WEIM_D_19,
	MX53_PAD_EIM_D20__EMI_WEIM_D_20,
	MX53_PAD_EIM_D21__EMI_WEIM_D_21,
	MX53_PAD_EIM_D22__EMI_WEIM_D_22,
	MX53_PAD_EIM_D23__EMI_WEIM_D_23,
	MX53_PAD_EIM_D24__EMI_WEIM_D_24,
	MX53_PAD_EIM_D25__EMI_WEIM_D_25,
	MX53_PAD_EIM_D26__EMI_WEIM_D_26,
	MX53_PAD_EIM_D27__EMI_WEIM_D_27,
	MX53_PAD_EIM_D28__EMI_WEIM_D_28,
	MX53_PAD_EIM_D29__EMI_WEIM_D_29,
	MX53_PAD_EIM_D30__EMI_WEIM_D_30,
	MX53_PAD_EIM_D31__EMI_WEIM_D_31,
	MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
	MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
	MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
	MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
	MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
	MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
	MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
	MX53_PAD_EIM_OE__EMI_WEIM_OE,
	MX53_PAD_EIM_RW__EMI_WEIM_RW,
	MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
	/* SDHC1 */
	MX53_PAD_SD1_CMD__ESDHC1_CMD,
	MX53_PAD_SD1_CLK__ESDHC1_CLK,
	MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
	MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
	MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
	MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
	MX53_PAD_PATA_DATA8__ESDHC1_DAT4,
	MX53_PAD_PATA_DATA9__ESDHC1_DAT5,
	MX53_PAD_PATA_DATA10__ESDHC1_DAT6,
	MX53_PAD_PATA_DATA11__ESDHC1_DAT7,
	MX53_PAD_GPIO_1__GPIO1_1,
	MX53_PAD_GPIO_9__GPIO1_9,
	/* I2C2 */
	MX53_PAD_EIM_EB2__I2C2_SCL,
	MX53_PAD_KEY_ROW3__I2C2_SDA,
	/* I2C3 */
	MX53_PAD_GPIO_3__I2C3_SCL,
	MX53_PAD_GPIO_16__I2C3_SDA,
	/* GPIO */
	MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */
	MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */
	MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */
	MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */
	MX53_PAD_GPIO_10__GPIO4_0, /* vol down */
	};

	#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \
	{ \
	.gpio = gpio_num, \
	.type = EV_KEY, \
	.code = ev_code, \
	.active_low = act_low, \
	.desc = "btn " descr, \
	.wakeup = wake, \
	}

	static struct gpio_keys_button ard_buttons[] = {
	GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0),
	GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0),
	GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0),
	GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0),
	GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0),
	};

	static const struct gpio_keys_platform_data ard_button_data __initconst = {
	.buttons = ard_buttons,
	.nbuttons = ARRAY_SIZE(ard_buttons),
	};

	static struct resource ard_smsc911x_resources[] = {
	{
	.start = MX53_CS1_64MB_BASE_ADDR,
	.end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1,
	.flags = IORESOURCE_MEM,
	},
	{
	.start = gpio_to_irq(ARD_ETHERNET_INT_B),
	.end = gpio_to_irq(ARD_ETHERNET_INT_B),
	.flags = IORESOURCE_IRQ,
	},
	};

	struct smsc911x_platform_config ard_smsc911x_config = {
	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
	.flags = SMSC911X_USE_32BIT,
	};

	static struct platform_device ard_smsc_lan9220_device = {
	.name = "smsc911x",
	.id = -1,
	.num_resources = ARRAY_SIZE(ard_smsc911x_resources),
	.resource = ard_smsc911x_resources,
	.dev = {
	.platform_data = &ard_smsc911x_config,
	},
	};

	static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = {
	.cd_gpio = ARD_SD1_CD,
	.wp_gpio = ARD_SD1_WP,
	};

	static struct imxi2c_platform_data mx53_ard_i2c2_data = {
	.bitrate = 50000,
	};

	static struct imxi2c_platform_data mx53_ard_i2c3_data = {
	.bitrate = 400000,
	};

	static void __init mx53_ard_io_init(void)
	{
	mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
	ARRAY_SIZE(mx53_ard_pads));

	gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
	gpio_direction_input(ARD_ETHERNET_INT_B);

	gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst");
	gpio_direction_output(ARD_I2CPORTEXP_B, 1);
	}

	/* Config CS1 settings for ethernet controller */
	static int weim_cs_config(void)
	{
	u32 reg;
	void __iomem weim_base, iomuxc_base;

	weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K);
	if (!weim_base)
	return -ENOMEM;

	iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K);
	if (!iomuxc_base)
	return -ENOMEM;

	/* CS1 timings for LAN9220 */
	writel(0x20001, (weim_base + 0x18));
	writel(0x0, (weim_base + 0x1C));
	writel(0x16000202, (weim_base + 0x20));
	writel(0x00000002, (weim_base + 0x24));
	writel(0x16002082, (weim_base + 0x28));
	writel(0x00000000, (weim_base + 0x2C));
	writel(0x00000000, (weim_base + 0x90));

	/* specify 64 MB on CS1 and CS0 on GPR1 */
	reg = readl(iomuxc_base + 0x4);
	reg &= ~0x3F;
	reg \|= 0x1B;
	writel(reg, (iomuxc_base + 0x4));

	iounmap(iomuxc_base);
	iounmap(weim_base);

	return 0;
	}

	static struct platform_device *devices[] __initdata = {
	&ard_smsc_lan9220_device,
	};

	static void __init mx53_ard_board_init(void)
	{
	imx53_soc_init();
	imx53_add_imx_uart(0, NULL);

	mx53_ard_io_init();
	weim_cs_config();
	platform_add_devices(devices, ARRAY_SIZE(devices));

	imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);
	imx53_add_imx2_wdt(0, NULL);
	imx53_add_imx_i2c(1, &mx53_ard_i2c2_data);
	imx53_add_imx_i2c(2, &mx53_ard_i2c3_data);
	imx_add_gpio_keys(&ard_button_data);
	}

	static void __init mx53_ard_timer_init(void)
	{
	mx53_clocks_init(32768, 24000000, 22579200, 0);
	}

	static struct sys_timer mx53_ard_timer = {
	.init = mx53_ard_timer_init,
	};

	MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board")
	.map_io = mx53_map_io,
	.init_early = imx53_init_early,
	.init_irq = mx53_init_irq,
	.timer = &mx53_ard_timer,
	.init_machine = mx53_ard_board_init,
	MACHINE_END