arch/arm/mach-davinci/board-da830-evm.c - kernel/msm-4.19 - Gitiles

 /*
  * TI DA830/OMAP L137 EVM board
  *
  * Author: Mark A. Greer <mgreer@mvista.com>
  * Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
  *
  * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
  * the terms of the GNU General Public License version 2. This program
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/console.h>
 #include <linux/interrupt.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c/pcf857x.h>
 #include <linux/i2c/at24.h>

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

 #include <mach/common.h>
 #include <mach/irqs.h>
 #include <mach/cp_intc.h>
 #include <mach/mux.h>
 #include <mach/gpio.h>
 #include <mach/da8xx.h>
 #include <mach/asp.h>
 #include <mach/usb.h>

 #define DA830_EVM_PHY_MASK		0x0
 #define DA830_EVM_MDIO_FREQUENCY	2200000	/* PHY bus frequency */

 static struct at24_platform_data da830_evm_i2c_eeprom_info = {
 	.byte_len	= SZ_256K / 8,
 	.page_size	= 64,
 	.flags		= AT24_FLAG_ADDR16,
 	.setup		= davinci_get_mac_addr,
 	.context	= (void *)0x7f00,
 };

 static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
 		unsigned ngpio, void *context)
 {
 	gpio_request(gpio + 6, "MUX_MODE");
 #ifdef CONFIG_DA830_UI_LCD
 	gpio_direction_output(gpio + 6, 0);
 #else /* Must be NAND or NOR */
 	gpio_direction_output(gpio + 6, 1);
 #endif
 	return 0;
 }

 static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
 		unsigned ngpio, void *context)
 {
 	gpio_free(gpio + 6);
 	return 0;
 }

 static struct pcf857x_platform_data da830_evm_ui_expander_info = {
 	.gpio_base	= DAVINCI_N_GPIO,
 	.setup		= da830_evm_ui_expander_setup,
 	.teardown	= da830_evm_ui_expander_teardown,
 };

 static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("24c256", 0x50),
 		.platform_data	= &da830_evm_i2c_eeprom_info,
 	},
 	{
 		I2C_BOARD_INFO("tlv320aic3x", 0x18),
 	},
 	{
 		I2C_BOARD_INFO("pcf8574", 0x3f),
 		.platform_data	= &da830_evm_ui_expander_info,
 	},
 };

 static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
 	.bus_freq	= 100,	/* kHz */
 	.bus_delay	= 0,	/* usec */
 };

 /*
  * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
  */
 #define ON_BD_USB_DRV	GPIO_TO_PIN(1, 15)
 #define ON_BD_USB_OVC	GPIO_TO_PIN(2, 4)

 static const short da830_evm_usb11_pins[] = {
 	DA830_GPIO1_15, DA830_GPIO2_4,
 	-1
 };

 static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;

 static int da830_evm_usb_set_power(unsigned port, int on)
 {
 	gpio_set_value(ON_BD_USB_DRV, on);
 	return 0;
 }

 static int da830_evm_usb_get_power(unsigned port)
 {
 	return gpio_get_value(ON_BD_USB_DRV);
 }

 static int da830_evm_usb_get_oci(unsigned port)
 {
 	return !gpio_get_value(ON_BD_USB_OVC);
 }

 static irqreturn_t da830_evm_usb_ocic_irq(int, void *);

 static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
 {
 	int irq 	= gpio_to_irq(ON_BD_USB_OVC);
 	int error	= 0;

 	if (handler != NULL) {
 		da830_evm_usb_ocic_handler = handler;

 		error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
 				    IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				    "OHCI over-current indicator", NULL);
 		if (error)
 			printk(KERN_ERR "%s: could not request IRQ to watch "
 			       "over-current indicator changes\n", __func__);
 	} else
 		free_irq(irq, NULL);

 	return error;
 }

 static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
 	.set_power	= da830_evm_usb_set_power,
 	.get_power	= da830_evm_usb_get_power,
 	.get_oci	= da830_evm_usb_get_oci,
 	.ocic_notify	= da830_evm_usb_ocic_notify,

 	/* TPS2065 switch @ 5V */
 	.potpgt		= (3 + 1) / 2,	/* 3 ms max */
 };

 static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
 {
 	da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
 	return IRQ_HANDLED;
 }

 static __init void da830_evm_usb_init(void)
 {
 	u32 cfgchip2;
 	int ret;

 	/*
 	 * Set up USB clock/mode in the CFGCHIP2 register.
 	 * FYI:  CFGCHIP2 is 0x0000ef00 initially.
 	 */
 	cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));

 	/* USB2.0 PHY reference clock is 24 MHz */
 	cfgchip2 &= ~CFGCHIP2_REFFREQ;
 	cfgchip2 |=  CFGCHIP2_REFFREQ_24MHZ;

 	/*
 	 * Select internal reference clock for USB 2.0 PHY
 	 * and use it as a clock source for USB 1.1 PHY
 	 * (this is the default setting anyway).
 	 */
 	cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
 	cfgchip2 |=  CFGCHIP2_USB2PHYCLKMUX;

 	__raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));

 	ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
 	if (ret) {
 		pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
 			   __func__, ret);
 		return;
 	}

 	ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
 	if (ret) {
 		printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
 		       "power control: %d\n", __func__, ret);
 		return;
 	}
 	gpio_direction_output(ON_BD_USB_DRV, 0);

 	ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
 	if (ret) {
 		printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
 		       "over-current indicator: %d\n", __func__, ret);
 		return;
 	}
 	gpio_direction_input(ON_BD_USB_OVC);

 	ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
 	if (ret)
 		pr_warning("%s: USB 1.1 registration failed: %d\n",
 			   __func__, ret);
 }

 static struct davinci_uart_config da830_evm_uart_config __initdata = {
 	.enabled_uarts = 0x7,
 };

 static const short da830_evm_mcasp1_pins[] = {
 	DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
 	DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
 	DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
 	DA830_AXR1_11,
 	-1
 };

 static u8 da830_iis_serializer_direction[] = {
 	RX_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
 	INACTIVE_MODE,	TX_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
 	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
 };

 static struct snd_platform_data da830_evm_snd_data = {
 	.tx_dma_offset  = 0x2000,
 	.rx_dma_offset  = 0x2000,
 	.op_mode        = DAVINCI_MCASP_IIS_MODE,
 	.num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
 	.tdm_slots      = 2,
 	.serial_dir     = da830_iis_serializer_direction,
 	.eventq_no      = EVENTQ_0,
 	.version	= MCASP_VERSION_2,
 	.txnumevt	= 1,
 	.rxnumevt	= 1,
 };

 /*
  * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
  */
 static const short da830_evm_mmc_sd_pins[] = {
 	DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
 	DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
 	DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
 	DA830_MMCSD_CMD,   DA830_GPIO2_1,     DA830_GPIO2_2,
 	-1
 };

 #define DA830_MMCSD_WP_PIN		GPIO_TO_PIN(2, 1)

 static int da830_evm_mmc_get_ro(int index)
 {
 	return gpio_get_value(DA830_MMCSD_WP_PIN);
 }

 static struct davinci_mmc_config da830_evm_mmc_config = {
 	.get_ro			= da830_evm_mmc_get_ro,
 	.wires			= 4,
 	.version		= MMC_CTLR_VERSION_2,
 };

 static inline void da830_evm_init_mmc(void)
 {
 	int ret;

 	ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
 	if (ret) {
 		pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
 				ret);
 		return;
 	}

 	ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
 	if (ret) {
 		pr_warning("da830_evm_init: can not open GPIO %d\n",
 			   DA830_MMCSD_WP_PIN);
 		return;
 	}
 	gpio_direction_input(DA830_MMCSD_WP_PIN);

 	ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
 	if (ret) {
 		pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
 				ret);
 		gpio_free(DA830_MMCSD_WP_PIN);
 	}
 }

 static __init void da830_evm_init(void)
 {
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 	int ret;

 	ret = da8xx_register_edma();
 	if (ret)
 		pr_warning("da830_evm_init: edma registration failed: %d\n",
 				ret);

 	ret = da8xx_pinmux_setup(da830_i2c0_pins);
 	if (ret)
 		pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
 				ret);

 	ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
 	if (ret)
 		pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
 				ret);

 	da830_evm_usb_init();

 	soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
 	soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
 	soc_info->emac_pdata->rmii_en = 1;

 	ret = da8xx_pinmux_setup(da830_cpgmac_pins);
 	if (ret)
 		pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
 				ret);

 	ret = da8xx_register_emac();
 	if (ret)
 		pr_warning("da830_evm_init: emac registration failed: %d\n",
 				ret);

 	ret = da8xx_register_watchdog();
 	if (ret)
 		pr_warning("da830_evm_init: watchdog registration failed: %d\n",
 				ret);

 	davinci_serial_init(&da830_evm_uart_config);
 	i2c_register_board_info(1, da830_evm_i2c_devices,
 			ARRAY_SIZE(da830_evm_i2c_devices));

 	ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
 	if (ret)
 		pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
 				ret);

 	da8xx_register_mcasp(1, &da830_evm_snd_data);

 	da830_evm_init_mmc();

 #ifdef CONFIG_DA830_UI_LCD
 	ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
 	if (ret)
 		pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
 				ret);

 	ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
 	if (ret)
 		pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
 #endif

 	ret = da8xx_register_rtc();
 	if (ret)
 		pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
 }

 #ifdef CONFIG_SERIAL_8250_CONSOLE
 static int __init da830_evm_console_init(void)
 {
 	return add_preferred_console("ttyS", 2, "115200");
 }
 console_initcall(da830_evm_console_init);
 #endif

 static __init void da830_evm_irq_init(void)
 {
 	struct davinci_soc_info *soc_info = &davinci_soc_info;

 	cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
 			soc_info->intc_irq_prios);
 }

 static void __init da830_evm_map_io(void)
 {
 	da830_init();
 }

 MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137 EVM")
 	.phys_io	= IO_PHYS,
 	.io_pg_offst	= (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 	.boot_params	= (DA8XX_DDR_BASE + 0x100),
 	.map_io		= da830_evm_map_io,
 	.init_irq	= da830_evm_irq_init,
 	.timer		= &davinci_timer,
 	.init_machine	= da830_evm_init,
 MACHINE_END
	/*
	* TI DA830/OMAP L137 EVM board
	*
	* Author: Mark A. Greer <mgreer@mvista.com>
	* Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
	*
	* 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
	* the terms of the GNU General Public License version 2. This program
	* is licensed "as is" without any warranty of any kind, whether express
	* or implied.
	*/
	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/console.h>
	#include <linux/interrupt.h>
	#include <linux/gpio.h>
	#include <linux/i2c.h>
	#include <linux/i2c/pcf857x.h>
	#include <linux/i2c/at24.h>

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

	#include <mach/common.h>
	#include <mach/irqs.h>
	#include <mach/cp_intc.h>
	#include <mach/mux.h>
	#include <mach/gpio.h>
	#include <mach/da8xx.h>
	#include <mach/asp.h>
	#include <mach/usb.h>

	#define DA830_EVM_PHY_MASK 0x0
	#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */

	static struct at24_platform_data da830_evm_i2c_eeprom_info = {
	.byte_len = SZ_256K / 8,
	.page_size = 64,
	.flags = AT24_FLAG_ADDR16,
	.setup = davinci_get_mac_addr,
	.context = (void *)0x7f00,
	};

	static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
	unsigned ngpio, void *context)
	{
	gpio_request(gpio + 6, "MUX_MODE");
	#ifdef CONFIG_DA830_UI_LCD
	gpio_direction_output(gpio + 6, 0);
	#else /* Must be NAND or NOR */
	gpio_direction_output(gpio + 6, 1);
	#endif
	return 0;
	}

	static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
	unsigned ngpio, void *context)
	{
	gpio_free(gpio + 6);
	return 0;
	}

	static struct pcf857x_platform_data da830_evm_ui_expander_info = {
	.gpio_base = DAVINCI_N_GPIO,
	.setup = da830_evm_ui_expander_setup,
	.teardown = da830_evm_ui_expander_teardown,
	};

	static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
	{
	I2C_BOARD_INFO("24c256", 0x50),
	.platform_data = &da830_evm_i2c_eeprom_info,
	},
	{
	I2C_BOARD_INFO("tlv320aic3x", 0x18),
	},
	{
	I2C_BOARD_INFO("pcf8574", 0x3f),
	.platform_data = &da830_evm_ui_expander_info,
	},
	};

	static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
	.bus_freq = 100, /* kHz */
	.bus_delay = 0, /* usec */
	};

	/*
	* USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
	*/
	#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
	#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)

	static const short da830_evm_usb11_pins[] = {
	DA830_GPIO1_15, DA830_GPIO2_4,
	-1
	};

	static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;

	static int da830_evm_usb_set_power(unsigned port, int on)
	{
	gpio_set_value(ON_BD_USB_DRV, on);
	return 0;
	}

	static int da830_evm_usb_get_power(unsigned port)
	{
	return gpio_get_value(ON_BD_USB_DRV);
	}

	static int da830_evm_usb_get_oci(unsigned port)
	{
	return !gpio_get_value(ON_BD_USB_OVC);
	}

	static irqreturn_t da830_evm_usb_ocic_irq(int, void *);

	static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
	{
	int irq = gpio_to_irq(ON_BD_USB_OVC);
	int error = 0;

	if (handler != NULL) {
	da830_evm_usb_ocic_handler = handler;

	error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED \|
	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
	"OHCI over-current indicator", NULL);
	if (error)
	printk(KERN_ERR "%s: could not request IRQ to watch "
	"over-current indicator changes\n", __func__);
	} else
	free_irq(irq, NULL);

	return error;
	}

	static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
	.set_power = da830_evm_usb_set_power,
	.get_power = da830_evm_usb_get_power,
	.get_oci = da830_evm_usb_get_oci,
	.ocic_notify = da830_evm_usb_ocic_notify,

	/* TPS2065 switch @ 5V */
	.potpgt = (3 + 1) / 2, /* 3 ms max */
	};

	static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
	{
	da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
	return IRQ_HANDLED;
	}

	static __init void da830_evm_usb_init(void)
	{
	u32 cfgchip2;
	int ret;

	/*
	* Set up USB clock/mode in the CFGCHIP2 register.
	* FYI: CFGCHIP2 is 0x0000ef00 initially.
	*/
	cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));

	/* USB2.0 PHY reference clock is 24 MHz */
	cfgchip2 &= ~CFGCHIP2_REFFREQ;
	cfgchip2 \|= CFGCHIP2_REFFREQ_24MHZ;

	/*
	* Select internal reference clock for USB 2.0 PHY
	* and use it as a clock source for USB 1.1 PHY
	* (this is the default setting anyway).
	*/
	cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
	cfgchip2 \|= CFGCHIP2_USB2PHYCLKMUX;

	__raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));

	ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
	if (ret) {
	pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
	__func__, ret);
	return;
	}

	ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
	if (ret) {
	printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
	"power control: %d\n", __func__, ret);
	return;
	}
	gpio_direction_output(ON_BD_USB_DRV, 0);

	ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
	if (ret) {
	printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
	"over-current indicator: %d\n", __func__, ret);
	return;
	}
	gpio_direction_input(ON_BD_USB_OVC);

	ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
	if (ret)
	pr_warning("%s: USB 1.1 registration failed: %d\n",
	__func__, ret);
	}

	static struct davinci_uart_config da830_evm_uart_config __initdata = {
	.enabled_uarts = 0x7,
	};

	static const short da830_evm_mcasp1_pins[] = {
	DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
	DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
	DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
	DA830_AXR1_11,
	-1
	};

	static u8 da830_iis_serializer_direction[] = {
	RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
	INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
	INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
	};

	static struct snd_platform_data da830_evm_snd_data = {
	.tx_dma_offset = 0x2000,
	.rx_dma_offset = 0x2000,
	.op_mode = DAVINCI_MCASP_IIS_MODE,
	.num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
	.tdm_slots = 2,
	.serial_dir = da830_iis_serializer_direction,
	.eventq_no = EVENTQ_0,
	.version = MCASP_VERSION_2,
	.txnumevt = 1,
	.rxnumevt = 1,
	};

	/*
	* GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
	*/
	static const short da830_evm_mmc_sd_pins[] = {
	DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
	DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
	DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
	DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
	-1
	};

	#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)

	static int da830_evm_mmc_get_ro(int index)
	{
	return gpio_get_value(DA830_MMCSD_WP_PIN);
	}

	static struct davinci_mmc_config da830_evm_mmc_config = {
	.get_ro = da830_evm_mmc_get_ro,
	.wires = 4,
	.version = MMC_CTLR_VERSION_2,
	};

	static inline void da830_evm_init_mmc(void)
	{
	int ret;

	ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
	if (ret) {
	pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
	ret);
	return;
	}

	ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
	if (ret) {
	pr_warning("da830_evm_init: can not open GPIO %d\n",
	DA830_MMCSD_WP_PIN);
	return;
	}
	gpio_direction_input(DA830_MMCSD_WP_PIN);

	ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
	if (ret) {
	pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
	ret);
	gpio_free(DA830_MMCSD_WP_PIN);
	}
	}

	static __init void da830_evm_init(void)
	{
	struct davinci_soc_info *soc_info = &davinci_soc_info;
	int ret;

	ret = da8xx_register_edma();
	if (ret)
	pr_warning("da830_evm_init: edma registration failed: %d\n",
	ret);

	ret = da8xx_pinmux_setup(da830_i2c0_pins);
	if (ret)
	pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
	ret);

	ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
	if (ret)
	pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
	ret);

	da830_evm_usb_init();

	soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
	soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
	soc_info->emac_pdata->rmii_en = 1;

	ret = da8xx_pinmux_setup(da830_cpgmac_pins);
	if (ret)
	pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
	ret);

	ret = da8xx_register_emac();
	if (ret)
	pr_warning("da830_evm_init: emac registration failed: %d\n",
	ret);

	ret = da8xx_register_watchdog();
	if (ret)
	pr_warning("da830_evm_init: watchdog registration failed: %d\n",
	ret);

	davinci_serial_init(&da830_evm_uart_config);
	i2c_register_board_info(1, da830_evm_i2c_devices,
	ARRAY_SIZE(da830_evm_i2c_devices));

	ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
	if (ret)
	pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
	ret);

	da8xx_register_mcasp(1, &da830_evm_snd_data);

	da830_evm_init_mmc();

	#ifdef CONFIG_DA830_UI_LCD
	ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
	if (ret)
	pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
	ret);

	ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
	if (ret)
	pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
	#endif

	ret = da8xx_register_rtc();
	if (ret)
	pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
	}

	#ifdef CONFIG_SERIAL_8250_CONSOLE
	static int __init da830_evm_console_init(void)
	{
	return add_preferred_console("ttyS", 2, "115200");
	}
	console_initcall(da830_evm_console_init);
	#endif

	static __init void da830_evm_irq_init(void)
	{
	struct davinci_soc_info *soc_info = &davinci_soc_info;

	cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
	soc_info->intc_irq_prios);
	}

	static void __init da830_evm_map_io(void)
	{
	da830_init();
	}

	MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137 EVM")
	.phys_io = IO_PHYS,
	.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
	.boot_params = (DA8XX_DDR_BASE + 0x100),
	.map_io = da830_evm_map_io,
	.init_irq = da830_evm_irq_init,
	.timer = &davinci_timer,
	.init_machine = da830_evm_init,
	MACHINE_END