board-da850-evm.c 30.8 KB
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/*
 * TI DA850/OMAP-L138 EVM board
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Derived from: arch/arm/mach-davinci/board-da830-evm.c
 * Original Copyrights follow:
 *
 * 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/init.h>
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
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#include <linux/i2c/pca953x.h>
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#include <linux/input.h>
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#include <linux/mfd/tps6507x.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/tps6507x.h>
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#include <linux/input/tps6507x-ts.h>
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#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
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#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/cp_intc.h>
#include <mach/da8xx.h>
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#include <mach/nand.h>
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#include <mach/mux.h>
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#include <mach/aemif.h>
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#include <mach/spi.h>
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#define DA850_EVM_PHY_ID		"0:00"
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#define DA850_LCD_PWR_PIN		GPIO_TO_PIN(2, 8)
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#define DA850_LCD_BL_PIN		GPIO_TO_PIN(2, 15)

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#define DA850_MMCSD_CD_PIN		GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN		GPIO_TO_PIN(4, 1)

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#define DA850_MII_MDIO_CLKEN_PIN	GPIO_TO_PIN(2, 6)

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static struct mtd_partition da850evm_spiflash_part[] = {
	[0] = {
		.name = "UBL",
		.offset = 0,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
	[1] = {
		.name = "U-Boot",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_512K,
		.mask_flags = MTD_WRITEABLE,
	},
	[2] = {
		.name = "U-Boot-Env",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
	[3] = {
		.name = "Kernel",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_2M + SZ_512K,
		.mask_flags = 0,
	},
	[4] = {
		.name = "Filesystem",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_4M,
		.mask_flags = 0,
	},
	[5] = {
		.name = "MAC-Address",
		.offset = SZ_8M - SZ_64K,
		.size = SZ_64K,
		.mask_flags = MTD_WRITEABLE,
	},
};

static struct flash_platform_data da850evm_spiflash_data = {
	.name		= "m25p80",
	.parts		= da850evm_spiflash_part,
	.nr_parts	= ARRAY_SIZE(da850evm_spiflash_part),
	.type		= "m25p64",
};

static struct davinci_spi_config da850evm_spiflash_cfg = {
	.io_type	= SPI_IO_TYPE_DMA,
	.c2tdelay	= 8,
	.t2cdelay	= 8,
};

static struct spi_board_info da850evm_spi_info[] = {
	{
		.modalias		= "m25p80",
		.platform_data		= &da850evm_spiflash_data,
		.controller_data	= &da850evm_spiflash_cfg,
		.mode			= SPI_MODE_0,
		.max_speed_hz		= 30000000,
		.bus_num		= 1,
		.chip_select		= 0,
	},
};

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static struct mtd_partition da850_evm_norflash_partition[] = {
	{
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		.name           = "bootloaders + env",
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		.offset         = 0,
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		.size           = SZ_512K,
		.mask_flags     = MTD_WRITEABLE,
	},
	{
		.name           = "kernel",
		.offset         = MTDPART_OFS_APPEND,
		.size           = SZ_2M,
		.mask_flags     = 0,
	},
	{
		.name           = "filesystem",
		.offset         = MTDPART_OFS_APPEND,
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		.size           = MTDPART_SIZ_FULL,
		.mask_flags     = 0,
	},
};

static struct physmap_flash_data da850_evm_norflash_data = {
	.width		= 2,
	.parts		= da850_evm_norflash_partition,
	.nr_parts	= ARRAY_SIZE(da850_evm_norflash_partition),
};

static struct resource da850_evm_norflash_resource[] = {
	{
		.start	= DA8XX_AEMIF_CS2_BASE,
		.end	= DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
		.flags	= IORESOURCE_MEM,
	},
};

static struct platform_device da850_evm_norflash_device = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data  = &da850_evm_norflash_data,
	},
	.num_resources	= 1,
	.resource	= da850_evm_norflash_resource,
};

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static struct davinci_pm_config da850_pm_pdata = {
	.sleepcount = 128,
};

static struct platform_device da850_pm_device = {
	.name           = "pm-davinci",
	.dev = {
		.platform_data	= &da850_pm_pdata,
	},
	.id             = -1,
};

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/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
 * (128K blocks). It may be used instead of the (default) SPI flash
 * to boot, using TI's tools to install the secondary boot loader
 * (UBL) and U-Boot.
 */
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static struct mtd_partition da850_evm_nandflash_partition[] = {
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	{
		.name		= "u-boot env",
		.offset		= 0,
		.size		= SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	 },
	{
		.name		= "UBL",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name		= "u-boot",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 4 * SZ_128K,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name		= "kernel",
		.offset		= 0x200000,
		.size		= SZ_2M,
		.mask_flags	= 0,
	},
	{
		.name		= "filesystem",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	},
};

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static struct davinci_aemif_timing da850_evm_nandflash_timing = {
	.wsetup		= 24,
	.wstrobe	= 21,
	.whold		= 14,
	.rsetup		= 19,
	.rstrobe	= 50,
	.rhold		= 0,
	.ta		= 20,
};

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static struct davinci_nand_pdata da850_evm_nandflash_data = {
	.parts		= da850_evm_nandflash_partition,
	.nr_parts	= ARRAY_SIZE(da850_evm_nandflash_partition),
	.ecc_mode	= NAND_ECC_HW,
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	.ecc_bits	= 4,
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	.bbt_options	= NAND_USE_FLASH_BBT,
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	.timing		= &da850_evm_nandflash_timing,
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};

static struct resource da850_evm_nandflash_resource[] = {
	{
		.start	= DA8XX_AEMIF_CS3_BASE,
		.end	= DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= DA8XX_AEMIF_CTL_BASE,
		.end	= DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
		.flags	= IORESOURCE_MEM,
	},
};

static struct platform_device da850_evm_nandflash_device = {
	.name		= "davinci_nand",
	.id		= 1,
	.dev		= {
		.platform_data	= &da850_evm_nandflash_data,
	},
	.num_resources	= ARRAY_SIZE(da850_evm_nandflash_resource),
	.resource	= da850_evm_nandflash_resource,
};

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static struct platform_device *da850_evm_devices[] __initdata = {
	&da850_evm_nandflash_device,
	&da850_evm_norflash_device,
};

#define DA8XX_AEMIF_CE2CFG_OFFSET	0x10
#define DA8XX_AEMIF_ASIZE_16BIT		0x1

static void __init da850_evm_init_nor(void)
{
	void __iomem *aemif_addr;

	aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);

	/* Configure data bus width of CS2 to 16 bit */
	writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
		DA8XX_AEMIF_ASIZE_16BIT,
		aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);

	iounmap(aemif_addr);
}

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static const short da850_evm_nand_pins[] = {
	DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
	DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
	DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
	DA850_NEMA_WE, DA850_NEMA_OE,
	-1
};

static const short da850_evm_nor_pins[] = {
	DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
	DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
	DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
	DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
	DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
	DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
	DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
	DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
	DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
	DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
	DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
	DA850_EMA_A_22, DA850_EMA_A_23,
	-1
};

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#if defined(CONFIG_MMC_DAVINCI) || \
    defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
#else
#define HAS_MMC 0
#endif

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static inline void da850_evm_setup_nor_nand(void)
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{
	int ret = 0;

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	if (!HAS_MMC) {
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		ret = davinci_cfg_reg_list(da850_evm_nand_pins);
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		if (ret)
			pr_warning("da850_evm_init: nand mux setup failed: "
					"%d\n", ret);

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		ret = davinci_cfg_reg_list(da850_evm_nor_pins);
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		if (ret)
			pr_warning("da850_evm_init: nor mux setup failed: %d\n",
				ret);

		da850_evm_init_nor();

		platform_add_devices(da850_evm_devices,
					ARRAY_SIZE(da850_evm_devices));
	}
}
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#ifdef CONFIG_DA850_UI_RMII
static inline void da850_evm_setup_emac_rmii(int rmii_sel)
{
	struct davinci_soc_info *soc_info = &davinci_soc_info;

	soc_info->emac_pdata->rmii_en = 1;
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	gpio_set_value_cansleep(rmii_sel, 0);
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}
#else
static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
#endif

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#define DA850_KEYS_DEBOUNCE_MS	10
/*
 * At 200ms polling interval it is possible to miss an
 * event by tapping very lightly on the push button but most
 * pushes do result in an event; longer intervals require the
 * user to hold the button whereas shorter intervals require
 * more CPU time for polling.
 */
#define DA850_GPIO_KEYS_POLL_MS	200

enum da850_evm_ui_exp_pins {
	DA850_EVM_UI_EXP_SEL_C = 5,
	DA850_EVM_UI_EXP_SEL_B,
	DA850_EVM_UI_EXP_SEL_A,
	DA850_EVM_UI_EXP_PB8,
	DA850_EVM_UI_EXP_PB7,
	DA850_EVM_UI_EXP_PB6,
	DA850_EVM_UI_EXP_PB5,
	DA850_EVM_UI_EXP_PB4,
	DA850_EVM_UI_EXP_PB3,
	DA850_EVM_UI_EXP_PB2,
	DA850_EVM_UI_EXP_PB1,
};

static const char const *da850_evm_ui_exp[] = {
	[DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
	[DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
	[DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
	[DA850_EVM_UI_EXP_PB8]          = "pb8",
	[DA850_EVM_UI_EXP_PB7]          = "pb7",
	[DA850_EVM_UI_EXP_PB6]          = "pb6",
	[DA850_EVM_UI_EXP_PB5]          = "pb5",
	[DA850_EVM_UI_EXP_PB4]          = "pb4",
	[DA850_EVM_UI_EXP_PB3]          = "pb3",
	[DA850_EVM_UI_EXP_PB2]          = "pb2",
	[DA850_EVM_UI_EXP_PB1]          = "pb1",
};

#define DA850_N_UI_PB		8

static struct gpio_keys_button da850_evm_ui_keys[] = {
	[0 ... DA850_N_UI_PB - 1] = {
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= -1, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
		.desc			= NULL, /* assigned at runtime */
	},
};

static struct gpio_keys_platform_data da850_evm_ui_keys_pdata = {
	.buttons = da850_evm_ui_keys,
	.nbuttons = ARRAY_SIZE(da850_evm_ui_keys),
	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_ui_keys_device = {
	.name = "gpio-keys-polled",
	.id = 0,
	.dev = {
		.platform_data = &da850_evm_ui_keys_pdata
	},
};

static void da850_evm_ui_keys_init(unsigned gpio)
{
	int i;
	struct gpio_keys_button *button;

	for (i = 0; i < DA850_N_UI_PB; i++) {
		button = &da850_evm_ui_keys[i];
		button->code = KEY_F8 - i;
		button->desc = (char *)
				da850_evm_ui_exp[DA850_EVM_UI_EXP_PB8 + i];
		button->gpio = gpio + DA850_EVM_UI_EXP_PB8 + i;
	}
}

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static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
						unsigned ngpio, void *c)
{
	int sel_a, sel_b, sel_c, ret;

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	sel_a = gpio + DA850_EVM_UI_EXP_SEL_A;
	sel_b = gpio + DA850_EVM_UI_EXP_SEL_B;
	sel_c = gpio + DA850_EVM_UI_EXP_SEL_C;
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	ret = gpio_request(sel_a, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_A]);
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	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_a);
		goto exp_setup_sela_fail;
	}

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	ret = gpio_request(sel_b, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_B]);
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	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_b);
		goto exp_setup_selb_fail;
	}

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	ret = gpio_request(sel_c, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_C]);
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	if (ret) {
		pr_warning("Cannot open UI expander pin %d\n", sel_c);
		goto exp_setup_selc_fail;
	}

	/* deselect all functionalities */
	gpio_direction_output(sel_a, 1);
	gpio_direction_output(sel_b, 1);
	gpio_direction_output(sel_c, 1);

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	da850_evm_ui_keys_init(gpio);
	ret = platform_device_register(&da850_evm_ui_keys_device);
	if (ret) {
		pr_warning("Could not register UI GPIO expander push-buttons");
		goto exp_setup_keys_fail;
	}

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	pr_info("DA850/OMAP-L138 EVM UI card detected\n");

	da850_evm_setup_nor_nand();

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	da850_evm_setup_emac_rmii(sel_a);
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	return 0;

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exp_setup_keys_fail:
	gpio_free(sel_c);
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exp_setup_selc_fail:
	gpio_free(sel_b);
exp_setup_selb_fail:
	gpio_free(sel_a);
exp_setup_sela_fail:
	return ret;
}

static int da850_evm_ui_expander_teardown(struct i2c_client *client,
					unsigned gpio, unsigned ngpio, void *c)
{
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	platform_device_unregister(&da850_evm_ui_keys_device);

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	/* deselect all functionalities */
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	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_C, 1);
	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_B, 1);
	gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_A, 1);
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	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_C);
	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_B);
	gpio_free(gpio + DA850_EVM_UI_EXP_SEL_A);
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	return 0;
}

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/* assign the baseboard expander's GPIOs after the UI board's */
#define DA850_UI_EXPANDER_N_GPIOS ARRAY_SIZE(da850_evm_ui_exp)
#define DA850_BB_EXPANDER_GPIO_BASE (DAVINCI_N_GPIO + DA850_UI_EXPANDER_N_GPIOS)

enum da850_evm_bb_exp_pins {
	DA850_EVM_BB_EXP_DEEP_SLEEP_EN = 0,
	DA850_EVM_BB_EXP_SW_RST,
	DA850_EVM_BB_EXP_TP_23,
	DA850_EVM_BB_EXP_TP_22,
	DA850_EVM_BB_EXP_TP_21,
	DA850_EVM_BB_EXP_USER_PB1,
	DA850_EVM_BB_EXP_USER_LED2,
	DA850_EVM_BB_EXP_USER_LED1,
	DA850_EVM_BB_EXP_USER_SW1,
	DA850_EVM_BB_EXP_USER_SW2,
	DA850_EVM_BB_EXP_USER_SW3,
	DA850_EVM_BB_EXP_USER_SW4,
	DA850_EVM_BB_EXP_USER_SW5,
	DA850_EVM_BB_EXP_USER_SW6,
	DA850_EVM_BB_EXP_USER_SW7,
	DA850_EVM_BB_EXP_USER_SW8
};

static const char const *da850_evm_bb_exp[] = {
	[DA850_EVM_BB_EXP_DEEP_SLEEP_EN]	= "deep_sleep_en",
	[DA850_EVM_BB_EXP_SW_RST]		= "sw_rst",
	[DA850_EVM_BB_EXP_TP_23]		= "tp_23",
	[DA850_EVM_BB_EXP_TP_22]		= "tp_22",
	[DA850_EVM_BB_EXP_TP_21]		= "tp_21",
	[DA850_EVM_BB_EXP_USER_PB1]		= "user_pb1",
	[DA850_EVM_BB_EXP_USER_LED2]		= "user_led2",
	[DA850_EVM_BB_EXP_USER_LED1]		= "user_led1",
	[DA850_EVM_BB_EXP_USER_SW1]		= "user_sw1",
	[DA850_EVM_BB_EXP_USER_SW2]		= "user_sw2",
	[DA850_EVM_BB_EXP_USER_SW3]		= "user_sw3",
	[DA850_EVM_BB_EXP_USER_SW4]		= "user_sw4",
	[DA850_EVM_BB_EXP_USER_SW5]		= "user_sw5",
	[DA850_EVM_BB_EXP_USER_SW6]		= "user_sw6",
	[DA850_EVM_BB_EXP_USER_SW7]		= "user_sw7",
	[DA850_EVM_BB_EXP_USER_SW8]		= "user_sw8",
};

#define DA850_N_BB_USER_SW	8

static struct gpio_keys_button da850_evm_bb_keys[] = {
	[0] = {
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= KEY_PROG1,
		.desc			= NULL, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
	},
	[1 ... DA850_N_BB_USER_SW] = {
		.type			= EV_SW,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= DA850_KEYS_DEBOUNCE_MS,
		.code			= -1, /* assigned at runtime */
		.desc			= NULL, /* assigned at runtime */
		.gpio			= -1, /* assigned at runtime */
	},
};

static struct gpio_keys_platform_data da850_evm_bb_keys_pdata = {
	.buttons = da850_evm_bb_keys,
	.nbuttons = ARRAY_SIZE(da850_evm_bb_keys),
	.poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_bb_keys_device = {
	.name = "gpio-keys-polled",
	.id = 1,
	.dev = {
		.platform_data = &da850_evm_bb_keys_pdata
	},
};

static void da850_evm_bb_keys_init(unsigned gpio)
{
	int i;
	struct gpio_keys_button *button;

	button = &da850_evm_bb_keys[0];
	button->desc = (char *)
		da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_PB1];
	button->gpio = gpio + DA850_EVM_BB_EXP_USER_PB1;

	for (i = 0; i < DA850_N_BB_USER_SW; i++) {
		button = &da850_evm_bb_keys[i + 1];
		button->code = SW_LID + i;
		button->desc = (char *)
				da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_SW1 + i];
		button->gpio = gpio + DA850_EVM_BB_EXP_USER_SW1 + i;
	}
}

#define DA850_N_BB_USER_LED	2

static struct gpio_led da850_evm_bb_leds[] = {
	[0 ... DA850_N_BB_USER_LED - 1] = {
		.active_low = 1,
		.gpio = -1, /* assigned at runtime */
		.name = NULL, /* assigned at runtime */
	},
};

static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
	.leds = da850_evm_bb_leds,
	.num_leds = ARRAY_SIZE(da850_evm_bb_leds),
};

static struct platform_device da850_evm_bb_leds_device = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev = {
		.platform_data = &da850_evm_bb_leds_pdata
	}
};

static void da850_evm_bb_leds_init(unsigned gpio)
{
	int i;
	struct gpio_led *led;

	for (i = 0; i < DA850_N_BB_USER_LED; i++) {
		led = &da850_evm_bb_leds[i];

		led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
		led->name =
			da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
	}
}

static int da850_evm_bb_expander_setup(struct i2c_client *client,
						unsigned gpio, unsigned ngpio,
						void *c)
{
	int ret;

	/*
	 * Register the switches and pushbutton on the baseboard as a gpio-keys
	 * device.
	 */
	da850_evm_bb_keys_init(gpio);
	ret = platform_device_register(&da850_evm_bb_keys_device);
	if (ret) {
		pr_warning("Could not register baseboard GPIO expander keys");
		goto io_exp_setup_sw_fail;
	}

	da850_evm_bb_leds_init(gpio);
	ret = platform_device_register(&da850_evm_bb_leds_device);
	if (ret) {
		pr_warning("Could not register baseboard GPIO expander LEDS");
		goto io_exp_setup_leds_fail;
	}

	return 0;

io_exp_setup_leds_fail:
	platform_device_unregister(&da850_evm_bb_keys_device);
io_exp_setup_sw_fail:
	return ret;
}

static int da850_evm_bb_expander_teardown(struct i2c_client *client,
					unsigned gpio, unsigned ngpio, void *c)
{
	platform_device_unregister(&da850_evm_bb_leds_device);
	platform_device_unregister(&da850_evm_bb_keys_device);

	return 0;
}

673 674 675 676
static struct pca953x_platform_data da850_evm_ui_expander_info = {
	.gpio_base	= DAVINCI_N_GPIO,
	.setup		= da850_evm_ui_expander_setup,
	.teardown	= da850_evm_ui_expander_teardown,
677
	.names		= da850_evm_ui_exp,
678 679
};

680 681 682 683 684 685 686
static struct pca953x_platform_data da850_evm_bb_expander_info = {
	.gpio_base	= DA850_BB_EXPANDER_GPIO_BASE,
	.setup		= da850_evm_bb_expander_setup,
	.teardown	= da850_evm_bb_expander_teardown,
	.names		= da850_evm_bb_exp,
};

687 688 689
static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
	{
		I2C_BOARD_INFO("tlv320aic3x", 0x18),
690 691 692 693 694
	},
	{
		I2C_BOARD_INFO("tca6416", 0x20),
		.platform_data = &da850_evm_ui_expander_info,
	},
695 696 697 698
	{
		I2C_BOARD_INFO("tca6416", 0x21),
		.platform_data = &da850_evm_bb_expander_info,
	},
699 700
};

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static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
	.bus_freq	= 100,	/* kHz */
	.bus_delay	= 0,	/* usec */
};

static struct davinci_uart_config da850_evm_uart_config __initdata = {
	.enabled_uarts = 0x7,
};

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/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	TX_MODE,
	RX_MODE,	INACTIVE_MODE,	INACTIVE_MODE,	INACTIVE_MODE,
};

static struct snd_platform_data da850_evm_snd_data = {
	.tx_dma_offset	= 0x2000,
	.rx_dma_offset	= 0x2000,
	.op_mode	= DAVINCI_MCASP_IIS_MODE,
	.num_serializer	= ARRAY_SIZE(da850_iis_serializer_direction),
	.tdm_slots	= 2,
	.serial_dir	= da850_iis_serializer_direction,
725
	.asp_chan_q	= EVENTQ_1,
726 727 728 729 730
	.version	= MCASP_VERSION_2,
	.txnumevt	= 1,
	.rxnumevt	= 1,
};

731 732 733 734 735 736 737
static const short da850_evm_mcasp_pins[] __initconst = {
	DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
	DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
	DA850_AXR_11, DA850_AXR_12,
	-1
};

738 739 740 741 742 743 744 745 746 747 748 749 750 751
static int da850_evm_mmc_get_ro(int index)
{
	return gpio_get_value(DA850_MMCSD_WP_PIN);
}

static int da850_evm_mmc_get_cd(int index)
{
	return !gpio_get_value(DA850_MMCSD_CD_PIN);
}

static struct davinci_mmc_config da850_mmc_config = {
	.get_ro		= da850_evm_mmc_get_ro,
	.get_cd		= da850_evm_mmc_get_cd,
	.wires		= 4,
752 753
	.max_freq	= 50000000,
	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
754 755 756
	.version	= MMC_CTLR_VERSION_2,
};

757 758 759 760 761 762 763
static const short da850_evm_mmcsd0_pins[] __initconst = {
	DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
	DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
	DA850_GPIO4_0, DA850_GPIO4_1,
	-1
};

764 765 766 767 768 769 770 771 772
static void da850_panel_power_ctrl(int val)
{
	/* lcd backlight */
	gpio_set_value(DA850_LCD_BL_PIN, val);

	/* lcd power */
	gpio_set_value(DA850_LCD_PWR_PIN, val);
}

773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789
static int da850_lcd_hw_init(void)
{
	int status;

	status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
	if (status < 0)
		return status;

	status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
	if (status < 0) {
		gpio_free(DA850_LCD_BL_PIN);
		return status;
	}

	gpio_direction_output(DA850_LCD_BL_PIN, 0);
	gpio_direction_output(DA850_LCD_PWR_PIN, 0);

790 791
	/* Switch off panel power and backlight */
	da850_panel_power_ctrl(0);
792

793 794
	/* Switch on panel power and backlight */
	da850_panel_power_ctrl(1);
795 796 797

	return 0;
}
798

799 800 801
/* TPS65070 voltage regulator support */

/* 3.3V */
802
static struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
803 804 805 806 807 808 809 810 811
	{
		.supply = "usb0_vdda33",
	},
	{
		.supply = "usb1_vdda33",
	},
};

/* 3.3V or 1.8V */
812
static struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
813 814 815 816 817 818 819 820 821 822 823 824
	{
		.supply = "dvdd3318_a",
	},
	{
		.supply = "dvdd3318_b",
	},
	{
		.supply = "dvdd3318_c",
	},
};

/* 1.2V */
825
static struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
826 827 828 829 830 831
	{
		.supply = "cvdd",
	},
};

/* 1.8V LDO */
832
static struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
833 834 835 836 837 838 839 840 841 842 843 844 845 846 847
	{
		.supply = "sata_vddr",
	},
	{
		.supply = "usb0_vdda18",
	},
	{
		.supply = "usb1_vdda18",
	},
	{
		.supply = "ddr_dvdd18",
	},
};

/* 1.2V LDO */
848
static struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865
	{
		.supply = "sata_vdd",
	},
	{
		.supply = "pll0_vdda",
	},
	{
		.supply = "pll1_vdda",
	},
	{
		.supply = "usbs_cvdd",
	},
	{
		.supply = "vddarnwa1",
	},
};

866 867 868 869 870
/* We take advantage of the fact that both defdcdc{2,3} are tied high */
static struct tps6507x_reg_platform_data tps6507x_platform_data = {
	.defdcdc_default = true,
};

871
static struct regulator_init_data tps65070_regulator_data[] = {
872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895
	/* dcdc1 */
	{
		.constraints = {
			.min_uV = 3150000,
			.max_uV = 3450000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc1_consumers),
		.consumer_supplies = tps65070_dcdc1_consumers,
	},

	/* dcdc2 */
	{
		.constraints = {
			.min_uV = 1710000,
			.max_uV = 3450000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
		.consumer_supplies = tps65070_dcdc2_consumers,
896
		.driver_data = &tps6507x_platform_data,
897 898 899 900 901 902
	},

	/* dcdc3 */
	{
		.constraints = {
			.min_uV = 950000,
903
			.max_uV = 1350000,
904 905 906 907 908 909
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
		.consumer_supplies = tps65070_dcdc3_consumers,
910
		.driver_data = &tps6507x_platform_data,
911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939
	},

	/* ldo1 */
	{
		.constraints = {
			.min_uV = 1710000,
			.max_uV = 1890000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo1_consumers),
		.consumer_supplies = tps65070_ldo1_consumers,
	},

	/* ldo2 */
	{
		.constraints = {
			.min_uV = 1140000,
			.max_uV = 1320000,
			.valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_STATUS),
			.boot_on = 1,
		},
		.num_consumer_supplies = ARRAY_SIZE(tps65070_ldo2_consumers),
		.consumer_supplies = tps65070_ldo2_consumers,
	},
};

940 941 942 943 944 945 946 947 948
static struct touchscreen_init_data tps6507x_touchscreen_data = {
	.poll_period =  30,	/* ms between touch samples */
	.min_pressure = 0x30,	/* minimum pressure to trigger touch */
	.vref = 0,		/* turn off vref when not using A/D */
	.vendor = 0,		/* /sys/class/input/input?/id/vendor */
	.product = 65070,	/* /sys/class/input/input?/id/product */
	.version = 0x100,	/* /sys/class/input/input?/id/version */
};

949 950
static struct tps6507x_board tps_board = {
	.tps6507x_pmic_init_data = &tps65070_regulator_data[0],
951
	.tps6507x_ts_init_data = &tps6507x_touchscreen_data,
952 953
};

954
static struct i2c_board_info __initdata da850_evm_tps65070_info[] = {
955 956
	{
		I2C_BOARD_INFO("tps6507x", 0x48),
957
		.platform_data = &tps_board,
958 959 960 961 962
	},
};

static int __init pmic_tps65070_init(void)
{
963 964
	return i2c_register_board_info(1, da850_evm_tps65070_info,
					ARRAY_SIZE(da850_evm_tps65070_info));
965 966
}

967 968 969 970 971
static const short da850_evm_lcdc_pins[] = {
	DA850_GPIO2_8, DA850_GPIO2_15,
	-1
};

972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988
static const short da850_evm_mii_pins[] = {
	DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
	DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
	DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
	DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
	DA850_MDIO_D,
	-1
};

static const short da850_evm_rmii_pins[] = {
	DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
	DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
	DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
	DA850_MDIO_D,
	-1
};

989
static int __init da850_evm_config_emac(void)
990 991 992 993
{
	void __iomem *cfg_chip3_base;
	int ret;
	u32 val;
994 995 996 997 998
	struct davinci_soc_info *soc_info = &davinci_soc_info;
	u8 rmii_en = soc_info->emac_pdata->rmii_en;

	if (!machine_is_davinci_da850_evm())
		return 0;
999

1000
	cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
1001 1002

	val = __raw_readl(cfg_chip3_base);
1003 1004

	if (rmii_en) {
1005
		val |= BIT(8);
1006
		ret = davinci_cfg_reg_list(da850_evm_rmii_pins);
1007 1008 1009
		pr_info("EMAC: RMII PHY configured, MII PHY will not be"
							" functional\n");
	} else {
1010
		val &= ~BIT(8);
1011
		ret = davinci_cfg_reg_list(da850_evm_mii_pins);
1012 1013 1014 1015
		pr_info("EMAC: MII PHY configured, RMII PHY will not be"
							" functional\n");
	}

1016 1017 1018 1019
	if (ret)
		pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
				ret);

1020 1021 1022
	/* configure the CFGCHIP3 register for RMII or MII */
	__raw_writel(val, cfg_chip3_base);

1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
	ret = davinci_cfg_reg(DA850_GPIO2_6);
	if (ret)
		pr_warning("da850_evm_init:GPIO(2,6) mux setup "
							"failed\n");

	ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
	if (ret) {
		pr_warning("Cannot open GPIO %d\n",
					DA850_MII_MDIO_CLKEN_PIN);
		return ret;
	}

1035 1036
	/* Enable/Disable MII MDIO clock */
	gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
1037

1038
	soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;
1039 1040 1041 1042 1043 1044

	ret = da8xx_register_emac();
	if (ret)
		pr_warning("da850_evm_init: emac registration failed: %d\n",
				ret);

1045 1046
	return 0;
}
1047
device_initcall(da850_evm_config_emac);
1048

1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
/*
 * The following EDMA channels/slots are not being used by drivers (for
 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM, hence
 * they are being reserved for codecs on the DSP side.
 */
static const s16 da850_dma0_rsv_chans[][2] = {
	/* (offset, number) */
	{ 8,  6},
	{24,  4},
	{30,  2},
	{-1, -1}
};

static const s16 da850_dma0_rsv_slots[][2] = {
	/* (offset, number) */
	{ 8,  6},
	{24,  4},
	{30, 50},
	{-1, -1}
};

static const s16 da850_dma1_rsv_chans[][2] = {
	/* (offset, number) */
	{ 0, 28},
	{30,  2},
	{-1, -1}
};

static const s16 da850_dma1_rsv_slots[][2] = {
	/* (offset, number) */
	{ 0, 28},
	{30, 90},
	{-1, -1}
};

static struct edma_rsv_info da850_edma_cc0_rsv = {
	.rsv_chans	= da850_dma0_rsv_chans,
	.rsv_slots	= da850_dma0_rsv_slots,
};

static struct edma_rsv_info da850_edma_cc1_rsv = {
	.rsv_chans	= da850_dma1_rsv_chans,
	.rsv_slots	= da850_dma1_rsv_slots,
};

static struct edma_rsv_info *da850_edma_rsv[2] = {
	&da850_edma_cc0_rsv,
	&da850_edma_cc1_rsv,
};

1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
#ifdef CONFIG_CPU_FREQ
static __init int da850_evm_init_cpufreq(void)
{
	switch (system_rev & 0xF) {
	case 3:
		da850_max_speed = 456000;
		break;
	case 2:
		da850_max_speed = 408000;
		break;
	case 1:
		da850_max_speed = 372000;
		break;
	}

	return da850_register_cpufreq("pll0_sysclk3");
}
#else
static __init int da850_evm_init_cpufreq(void) { return 0; }
#endif

1120 1121
#define DA850EVM_SATA_REFCLKPN_RATE	(100 * 1000 * 1000)

1122 1123 1124 1125
static __init void da850_evm_init(void)
{
	int ret;

1126 1127 1128 1129 1130
	ret = pmic_tps65070_init();
	if (ret)
		pr_warning("da850_evm_init: TPS65070 PMIC init failed: %d\n",
				ret);

1131
	ret = da850_register_edma(da850_edma_rsv);
1132 1133 1134 1135
	if (ret)
		pr_warning("da850_evm_init: edma registration failed: %d\n",
				ret);

1136
	ret = davinci_cfg_reg_list(da850_i2c0_pins);
1137 1138 1139 1140 1141 1142 1143 1144 1145
	if (ret)
		pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
				ret);

	ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
	if (ret)
		pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
				ret);

1146

1147 1148 1149 1150 1151
	ret = da8xx_register_watchdog();
	if (ret)
		pr_warning("da830_evm_init: watchdog registration failed: %d\n",
				ret);

1152
	if (HAS_MMC) {
1153
		ret = davinci_cfg_reg_list(da850_evm_mmcsd0_pins);
1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
		if (ret)
			pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
					" %d\n", ret);

		ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
		if (ret)
			pr_warning("da850_evm_init: can not open GPIO %d\n",
					DA850_MMCSD_CD_PIN);
		gpio_direction_input(DA850_MMCSD_CD_PIN);

		ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
		if (ret)
			pr_warning("da850_evm_init: can not open GPIO %d\n",
					DA850_MMCSD_WP_PIN);
		gpio_direction_input(DA850_MMCSD_WP_PIN);

		ret = da8xx_register_mmcsd0(&da850_mmc_config);
		if (ret)
			pr_warning("da850_evm_init: mmcsd0 registration failed:"
					" %d\n", ret);
	}
1175

1176 1177
	davinci_serial_init(&da850_evm_uart_config);

1178 1179 1180
	i2c_register_board_info(1, da850_evm_i2c_devices,
			ARRAY_SIZE(da850_evm_i2c_devices));

1181 1182 1183 1184 1185 1186 1187
	/*
	 * shut down uart 0 and 1; they are not used on the board and
	 * accessing them causes endless "too much work in irq53" messages
	 * with arago fs
	 */
	__raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
	__raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
1188

1189
	ret = davinci_cfg_reg_list(da850_evm_mcasp_pins);
1190 1191 1192 1193
	if (ret)
		pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
				ret);

1194
	da8xx_register_mcasp(0, &da850_evm_snd_data);
1195

1196
	ret = davinci_cfg_reg_list(da850_lcdcntl_pins);
1197 1198 1199 1200
	if (ret)
		pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
				ret);

1201
	/* Handle board specific muxing for LCD here */
1202
	ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
1203 1204 1205 1206
	if (ret)
		pr_warning("da850_evm_init: evm specific lcd mux setup "
				"failed: %d\n",	ret);

1207 1208 1209 1210 1211
	ret = da850_lcd_hw_init();
	if (ret)
		pr_warning("da850_evm_init: lcd initialization failed: %d\n",
				ret);

1212
	sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
1213
	ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
1214 1215 1216
	if (ret)
		pr_warning("da850_evm_init: lcdc registration failed: %d\n",
				ret);
1217 1218 1219 1220

	ret = da8xx_register_rtc();
	if (ret)
		pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);
1221

1222
	ret = da850_evm_init_cpufreq();
1223 1224 1225
	if (ret)
		pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
				ret);
1226 1227 1228 1229 1230

	ret = da8xx_register_cpuidle();
	if (ret)
		pr_warning("da850_evm_init: cpuidle registration failed: %d\n",
				ret);
1231 1232 1233 1234 1235

	ret = da850_register_pm(&da850_pm_device);
	if (ret)
		pr_warning("da850_evm_init: suspend registration failed: %d\n",
				ret);
1236 1237 1238 1239 1240 1241

	ret = da8xx_register_spi(1, da850evm_spi_info,
				 ARRAY_SIZE(da850evm_spi_info));
	if (ret)
		pr_warning("da850_evm_init: spi 1 registration failed: %d\n",
				ret);
1242 1243 1244 1245 1246

	ret = da850_register_sata(DA850EVM_SATA_REFCLKPN_RATE);
	if (ret)
		pr_warning("da850_evm_init: sata registration failed: %d\n",
				ret);
1247 1248 1249 1250 1251
}

#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
1252 1253 1254
	if (!machine_is_davinci_da850_evm())
		return 0;

1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
	return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif

static void __init da850_evm_map_io(void)
{
	da850_init();
}

1265
MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
1266 1267
	.boot_params	= (DA8XX_DDR_BASE + 0x100),
	.map_io		= da850_evm_map_io,
1268
	.init_irq	= cp_intc_init,
1269 1270
	.timer		= &davinci_timer,
	.init_machine	= da850_evm_init,
1271
	.dma_zone_size	= SZ_128M,
1272
MACHINE_END