1 files changed, 317 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
new file mode 100644
index 00000000..6e1accf9
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * 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.
+ */
+
+/*
+ * This machine is known as:
+ *  - i.MX27 3-Stack Development System
+ *  - i.MX27 Platform Development Kit (i.MX27 PDK)
+ */
+
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/delay.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/machine.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/iomux-mx27.h>
+#include <mach/ulpi.h>
+#include <mach/irqs.h>
+#include <mach/3ds_debugboard.h>
+
+#include "devices-imx27.h"
+
+#define SD1_EN_GPIO (GPIO_PORTB + 25)
+#define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23)
+#define SPI2_SS0 (GPIO_PORTD + 21)
+#define EXPIO_PARENT_INT	(MXC_INTERNAL_IRQS + GPIO_PORTC + 28)
+
+static const int mx27pdk_pins[] __initconst = {
+	/* UART1 */
+	PE12_PF_UART1_TXD,
+	PE13_PF_UART1_RXD,
+	PE14_PF_UART1_CTS,
+	PE15_PF_UART1_RTS,
+	/* FEC */
+	PD0_AIN_FEC_TXD0,
+	PD1_AIN_FEC_TXD1,
+	PD2_AIN_FEC_TXD2,
+	PD3_AIN_FEC_TXD3,
+	PD4_AOUT_FEC_RX_ER,
+	PD5_AOUT_FEC_RXD1,
+	PD6_AOUT_FEC_RXD2,
+	PD7_AOUT_FEC_RXD3,
+	PD8_AF_FEC_MDIO,
+	PD9_AIN_FEC_MDC,
+	PD10_AOUT_FEC_CRS,
+	PD11_AOUT_FEC_TX_CLK,
+	PD12_AOUT_FEC_RXD0,
+	PD13_AOUT_FEC_RX_DV,
+	PD14_AOUT_FEC_RX_CLK,
+	PD15_AOUT_FEC_COL,
+	PD16_AIN_FEC_TX_ER,
+	PF23_AIN_FEC_TX_EN,
+	/* SDHC1 */
+	PE18_PF_SD1_D0,
+	PE19_PF_SD1_D1,
+	PE20_PF_SD1_D2,
+	PE21_PF_SD1_D3,
+	PE22_PF_SD1_CMD,
+	PE23_PF_SD1_CLK,
+	SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
+	/* OTG */
+	OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
+	PC7_PF_USBOTG_DATA5,
+	PC8_PF_USBOTG_DATA6,
+	PC9_PF_USBOTG_DATA0,
+	PC10_PF_USBOTG_DATA2,
+	PC11_PF_USBOTG_DATA1,
+	PC12_PF_USBOTG_DATA4,
+	PC13_PF_USBOTG_DATA3,
+	PE0_PF_USBOTG_NXT,
+	PE1_PF_USBOTG_STP,
+	PE2_PF_USBOTG_DIR,
+	PE24_PF_USBOTG_CLK,
+	PE25_PF_USBOTG_DATA7,
+	/* CSPI2 */
+	PD22_PF_CSPI2_SCLK,
+	PD23_PF_CSPI2_MISO,
+	PD24_PF_CSPI2_MOSI,
+	/* I2C1 */
+	PD17_PF_I2C_DATA,
+	PD18_PF_I2C_CLK,
+};
+
+static const struct imxuart_platform_data uart_pdata __initconst = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+/*
+ * Matrix keyboard
+ */
+
+static const uint32_t mx27_3ds_keymap[] = {
+	KEY(0, 0, KEY_UP),
+	KEY(0, 1, KEY_DOWN),
+	KEY(1, 0, KEY_RIGHT),
+	KEY(1, 1, KEY_LEFT),
+	KEY(1, 2, KEY_ENTER),
+	KEY(2, 0, KEY_F6),
+	KEY(2, 1, KEY_F8),
+	KEY(2, 2, KEY_F9),
+	KEY(2, 3, KEY_F10),
+};
+
+static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
+	.keymap		= mx27_3ds_keymap,
+	.keymap_size	= ARRAY_SIZE(mx27_3ds_keymap),
+};
+
+static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
+				void *data)
+{
+	return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING |
+			IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
+}
+
+static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
+{
+	free_irq(IRQ_GPIOB(26), data);
+}
+
+static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
+	.init = mx27_3ds_sdhc1_init,
+	.exit = mx27_3ds_sdhc1_exit,
+};
+
+static void mx27_3ds_sdhc1_enable_level_translator(void)
+{
+	/* Turn on TXB0108 OE pin */
+	gpio_request(SD1_EN_GPIO, "sd1_enable");
+	gpio_direction_output(SD1_EN_GPIO, 1);
+}
+
+
+static int otg_phy_init(void)
+{
+	gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
+	gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
+	mdelay(1);
+	gpio_set_value(OTG_PHY_RESET_GPIO, 1);
+	return 0;
+}
+
+static int mx27_3ds_otg_init(struct platform_device *pdev)
+{
+	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
+}
+
+static struct mxc_usbh_platform_data otg_pdata __initdata = {
+	.init	= mx27_3ds_otg_init,
+	.portsc	= MXC_EHCI_MODE_ULPI,
+};
+
+static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
+	.operating_mode = FSL_USB2_DR_DEVICE,
+	.phy_mode       = FSL_USB2_PHY_ULPI,
+};
+
+static int otg_mode_host;
+
+static int __init mx27_3ds_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=", mx27_3ds_otg_mode);
+
+/* Regulators */
+static struct regulator_consumer_supply vmmc1_consumers[] = {
+	REGULATOR_SUPPLY("lcd_2v8", NULL),
+};
+
+static struct regulator_init_data vmmc1_init = {
+	.constraints = {
+		.min_uV	= 2800000,
+		.max_uV = 2800000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
+	.consumer_supplies = vmmc1_consumers,
+};
+
+static struct regulator_consumer_supply vgen_consumers[] = {
+	REGULATOR_SUPPLY("vdd_lcdio", NULL),
+};
+
+static struct regulator_init_data vgen_init = {
+	.constraints = {
+		.min_uV	= 1800000,
+		.max_uV = 1800000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
+	.consumer_supplies = vgen_consumers,
+};
+
+static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
+	{
+		.id = MC13783_REG_VMMC1,
+		.init_data = &vmmc1_init,
+	}, {
+		.id = MC13783_REG_VGEN,
+		.init_data = &vgen_init,
+	},
+};
+
+/* MC13783 */
+static struct mc13xxx_platform_data mc13783_pdata = {
+	.regulators = {
+		.regulators = mx27_3ds_regulators,
+		.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
+
+	},
+	.flags  = MC13783_USE_REGULATOR,
+};
+
+/* SPI */
+static int spi2_internal_chipselect[] = {SPI2_SS0};
+
+static const struct spi_imx_master spi2_pdata __initconst = {
+	.chipselect	= spi2_internal_chipselect,
+	.num_chipselect	= ARRAY_SIZE(spi2_internal_chipselect),
+};
+
+static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
+	{
+		.modalias	= "mc13783",
+		.max_speed_hz	= 1000000,
+		.bus_num	= 1,
+		.chip_select	= 0, /* SS0 */
+		.platform_data	= &mc13783_pdata,
+		.irq = IRQ_GPIOC(14),
+		.mode = SPI_CS_HIGH,
+	},
+};
+
+static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
+	.bitrate = 100000,
+};
+
+static void __init mx27pdk_init(void)
+{
+	mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
+		"mx27pdk");
+	mx27_3ds_sdhc1_enable_level_translator();
+	imx27_add_imx_uart0(&uart_pdata);
+	imx27_add_fec(NULL);
+	imx27_add_imx_keypad(&mx27_3ds_keymap_data);
+	imx27_add_mxc_mmc(0, &sdhc1_pdata);
+	imx27_add_imx2_wdt(NULL);
+	otg_phy_init();
+
+	if (otg_mode_host) {
+		otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
+				ULPI_OTG_DRVVBUS_EXT);
+
+		if (otg_pdata.otg)
+			imx27_add_mxc_ehci_otg(&otg_pdata);
+	}
+
+	if (!otg_mode_host)
+		imx27_add_fsl_usb2_udc(&otg_device_pdata);
+
+	imx27_add_spi_imx1(&spi2_pdata);
+	spi_register_board_info(mx27_3ds_spi_devs,
+						ARRAY_SIZE(mx27_3ds_spi_devs));
+
+	if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
+		pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
+	imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
+}
+
+static void __init mx27pdk_timer_init(void)
+{
+	mx27_clocks_init(26000000);
+}
+
+static struct sys_timer mx27pdk_timer = {
+	.init	= mx27pdk_timer_init,
+};
+
+MACHINE_START(MX27_3DS, "Freescale MX27PDK")
+	/* maintainer: Freescale Semiconductor, Inc. */
+	.boot_params = MX27_PHYS_OFFSET + 0x100,
+	.map_io = mx27_map_io,
+	.init_early = imx27_init_early,
+	.init_irq = mx27_init_irq,
+	.timer = &mx27pdk_timer,
+	.init_machine = mx27pdk_init,
+MACHINE_END