|  | /* | 
|  | *  Copyright 2008 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. | 
|  | */ | 
|  |  | 
|  | #include <linux/delay.h> | 
|  | #include <linux/types.h> | 
|  | #include <linux/init.h> | 
|  | #include <linux/clk.h> | 
|  | #include <linux/irq.h> | 
|  | #include <linux/gpio.h> | 
|  | #include <linux/platform_device.h> | 
|  | #include <linux/mfd/mc13783.h> | 
|  | #include <linux/spi/spi.h> | 
|  | #include <linux/regulator/machine.h> | 
|  | #include <linux/fsl_devices.h> | 
|  | #include <linux/input/matrix_keypad.h> | 
|  |  | 
|  | #include <mach/hardware.h> | 
|  | #include <asm/mach-types.h> | 
|  | #include <asm/mach/arch.h> | 
|  | #include <asm/mach/time.h> | 
|  | #include <asm/memory.h> | 
|  | #include <asm/mach/map.h> | 
|  | #include <mach/common.h> | 
|  | #include <mach/iomux-mx3.h> | 
|  | #include <mach/3ds_debugboard.h> | 
|  |  | 
|  | #include "devices-imx31.h" | 
|  | #include "devices.h" | 
|  |  | 
|  | /* Definitions for components on the Debug board */ | 
|  |  | 
|  | /* Base address of CPLD controller on the Debug board */ | 
|  | #define DEBUG_BASE_ADDRESS		CS5_IO_ADDRESS(MX3x_CS5_BASE_ADDR) | 
|  |  | 
|  | /* LAN9217 ethernet base address */ | 
|  | #define LAN9217_BASE_ADDR		MX3x_CS5_BASE_ADDR | 
|  |  | 
|  | /* CPLD config and interrupt base address */ | 
|  | #define CPLD_ADDR			(DEBUG_BASE_ADDRESS + 0x20000) | 
|  |  | 
|  | /* status, interrupt */ | 
|  | #define CPLD_INT_STATUS_REG		(CPLD_ADDR + 0x10) | 
|  | #define CPLD_INT_MASK_REG		(CPLD_ADDR + 0x38) | 
|  | #define CPLD_INT_RESET_REG		(CPLD_ADDR + 0x20) | 
|  | /* magic word for debug CPLD */ | 
|  | #define CPLD_MAGIC_NUMBER1_REG		(CPLD_ADDR + 0x40) | 
|  | #define CPLD_MAGIC_NUMBER2_REG		(CPLD_ADDR + 0x48) | 
|  | /* CPLD code version */ | 
|  | #define CPLD_CODE_VER_REG		(CPLD_ADDR + 0x50) | 
|  | /* magic word for debug CPLD */ | 
|  | #define CPLD_MAGIC_NUMBER3_REG		(CPLD_ADDR + 0x58) | 
|  |  | 
|  | /* CPLD IRQ line for external uart, external ethernet etc */ | 
|  | #define EXPIO_PARENT_INT	IOMUX_TO_IRQ(MX31_PIN_GPIO1_1) | 
|  |  | 
|  | #define MXC_EXP_IO_BASE		(MXC_BOARD_IRQ_START) | 
|  | #define MXC_IRQ_TO_EXPIO(irq)	((irq) - MXC_EXP_IO_BASE) | 
|  |  | 
|  | #define EXPIO_INT_ENET		(MXC_EXP_IO_BASE + 0) | 
|  |  | 
|  | #define MXC_MAX_EXP_IO_LINES	16 | 
|  |  | 
|  | /* | 
|  | * This file contains the board-specific initialization routines. | 
|  | */ | 
|  |  | 
|  | static int mx31_3ds_pins[] = { | 
|  | /* UART1 */ | 
|  | MX31_PIN_CTS1__CTS1, | 
|  | MX31_PIN_RTS1__RTS1, | 
|  | MX31_PIN_TXD1__TXD1, | 
|  | MX31_PIN_RXD1__RXD1, | 
|  | IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO), | 
|  | /* SPI 1 */ | 
|  | MX31_PIN_CSPI2_SCLK__SCLK, | 
|  | MX31_PIN_CSPI2_MOSI__MOSI, | 
|  | MX31_PIN_CSPI2_MISO__MISO, | 
|  | MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, | 
|  | MX31_PIN_CSPI2_SS0__SS0, | 
|  | MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */ | 
|  | /* MC13783 IRQ */ | 
|  | IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO), | 
|  | /* USB OTG reset */ | 
|  | IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO), | 
|  | /* USB OTG */ | 
|  | MX31_PIN_USBOTG_DATA0__USBOTG_DATA0, | 
|  | MX31_PIN_USBOTG_DATA1__USBOTG_DATA1, | 
|  | MX31_PIN_USBOTG_DATA2__USBOTG_DATA2, | 
|  | MX31_PIN_USBOTG_DATA3__USBOTG_DATA3, | 
|  | MX31_PIN_USBOTG_DATA4__USBOTG_DATA4, | 
|  | MX31_PIN_USBOTG_DATA5__USBOTG_DATA5, | 
|  | MX31_PIN_USBOTG_DATA6__USBOTG_DATA6, | 
|  | MX31_PIN_USBOTG_DATA7__USBOTG_DATA7, | 
|  | MX31_PIN_USBOTG_CLK__USBOTG_CLK, | 
|  | MX31_PIN_USBOTG_DIR__USBOTG_DIR, | 
|  | MX31_PIN_USBOTG_NXT__USBOTG_NXT, | 
|  | MX31_PIN_USBOTG_STP__USBOTG_STP, | 
|  | /*Keyboard*/ | 
|  | MX31_PIN_KEY_ROW0_KEY_ROW0, | 
|  | MX31_PIN_KEY_ROW1_KEY_ROW1, | 
|  | MX31_PIN_KEY_ROW2_KEY_ROW2, | 
|  | MX31_PIN_KEY_COL0_KEY_COL0, | 
|  | MX31_PIN_KEY_COL1_KEY_COL1, | 
|  | MX31_PIN_KEY_COL2_KEY_COL2, | 
|  | MX31_PIN_KEY_COL3_KEY_COL3, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Matrix keyboard | 
|  | */ | 
|  |  | 
|  | static const uint32_t mx31_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 struct matrix_keymap_data mx31_3ds_keymap_data = { | 
|  | .keymap		= mx31_3ds_keymap, | 
|  | .keymap_size	= ARRAY_SIZE(mx31_3ds_keymap), | 
|  | }; | 
|  |  | 
|  | /* Regulators */ | 
|  | static struct regulator_init_data pwgtx_init = { | 
|  | .constraints = { | 
|  | .boot_on	= 1, | 
|  | .always_on	= 1, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct mc13783_regulator_init_data mx31_3ds_regulators[] = { | 
|  | { | 
|  | .id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */ | 
|  | .init_data = &pwgtx_init, | 
|  | }, { | 
|  | .id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */ | 
|  | .init_data = &pwgtx_init, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | /* MC13783 */ | 
|  | static struct mc13783_platform_data mc13783_pdata __initdata = { | 
|  | .regulators = mx31_3ds_regulators, | 
|  | .num_regulators = ARRAY_SIZE(mx31_3ds_regulators), | 
|  | .flags  = MC13783_USE_REGULATOR, | 
|  | }; | 
|  |  | 
|  | /* SPI */ | 
|  | static int spi1_internal_chipselect[] = { | 
|  | MXC_SPI_CS(0), | 
|  | MXC_SPI_CS(2), | 
|  | }; | 
|  |  | 
|  | static const struct spi_imx_master spi1_pdata __initconst = { | 
|  | .chipselect	= spi1_internal_chipselect, | 
|  | .num_chipselect	= ARRAY_SIZE(spi1_internal_chipselect), | 
|  | }; | 
|  |  | 
|  | static struct spi_board_info mx31_3ds_spi_devs[] __initdata = { | 
|  | { | 
|  | .modalias	= "mc13783", | 
|  | .max_speed_hz	= 1000000, | 
|  | .bus_num	= 1, | 
|  | .chip_select	= 1, /* SS2 */ | 
|  | .platform_data	= &mc13783_pdata, | 
|  | .irq		= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3), | 
|  | .mode = SPI_CS_HIGH, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * NAND Flash | 
|  | */ | 
|  | static const struct mxc_nand_platform_data | 
|  | mx31_3ds_nand_board_info __initconst = { | 
|  | .width		= 1, | 
|  | .hw_ecc		= 1, | 
|  | #ifdef MACH_MX31_3DS_MXC_NAND_USE_BBT | 
|  | .flash_bbt	= 1, | 
|  | #endif | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * USB OTG | 
|  | */ | 
|  |  | 
|  | #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ | 
|  | PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) | 
|  |  | 
|  | #define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR) | 
|  |  | 
|  | static int mx31_3ds_usbotg_init(void) | 
|  | { | 
|  | int err; | 
|  |  | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG); | 
|  | mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG); | 
|  |  | 
|  | err = gpio_request(USBOTG_RST_B, "otgusb-reset"); | 
|  | if (err) { | 
|  | pr_err("Failed to request the USB OTG reset gpio\n"); | 
|  | return err; | 
|  | } | 
|  |  | 
|  | err = gpio_direction_output(USBOTG_RST_B, 0); | 
|  | if (err) { | 
|  | pr_err("Failed to drive the USB OTG reset gpio\n"); | 
|  | goto usbotg_free_reset; | 
|  | } | 
|  |  | 
|  | mdelay(1); | 
|  | gpio_set_value(USBOTG_RST_B, 1); | 
|  | return 0; | 
|  |  | 
|  | usbotg_free_reset: | 
|  | gpio_free(USBOTG_RST_B); | 
|  | return err; | 
|  | } | 
|  |  | 
|  | static struct fsl_usb2_platform_data usbotg_pdata = { | 
|  | .operating_mode = FSL_USB2_DR_DEVICE, | 
|  | .phy_mode	= FSL_USB2_PHY_ULPI, | 
|  | }; | 
|  |  | 
|  | static const struct imxuart_platform_data uart_pdata __initconst = { | 
|  | .flags = IMXUART_HAVE_RTSCTS, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Set up static virtual mappings. | 
|  | */ | 
|  | static void __init mx31_3ds_map_io(void) | 
|  | { | 
|  | mx31_map_io(); | 
|  | } | 
|  |  | 
|  | /*! | 
|  | * Board specific initialization. | 
|  | */ | 
|  | static void __init mxc_board_init(void) | 
|  | { | 
|  | mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins), | 
|  | "mx31_3ds"); | 
|  |  | 
|  | imx31_add_imx_uart0(&uart_pdata); | 
|  | imx31_add_mxc_nand(&mx31_3ds_nand_board_info); | 
|  |  | 
|  | imx31_add_spi_imx0(&spi1_pdata); | 
|  | spi_register_board_info(mx31_3ds_spi_devs, | 
|  | ARRAY_SIZE(mx31_3ds_spi_devs)); | 
|  |  | 
|  | mxc_register_device(&imx_kpp_device, &mx31_3ds_keymap_data); | 
|  |  | 
|  | mx31_3ds_usbotg_init(); | 
|  | mxc_register_device(&mxc_otg_udc_device, &usbotg_pdata); | 
|  |  | 
|  | if (!mxc_expio_init(CS5_BASE_ADDR, EXPIO_PARENT_INT)) | 
|  | printk(KERN_WARNING "Init of the debugboard failed, all " | 
|  | "devices on the board are unusable.\n"); | 
|  | } | 
|  |  | 
|  | static void __init mx31_3ds_timer_init(void) | 
|  | { | 
|  | mx31_clocks_init(26000000); | 
|  | } | 
|  |  | 
|  | static struct sys_timer mx31_3ds_timer = { | 
|  | .init	= mx31_3ds_timer_init, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * The following uses standard kernel macros defined in arch.h in order to | 
|  | * initialize __mach_desc_MX31_3DS data structure. | 
|  | */ | 
|  | MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)") | 
|  | /* Maintainer: Freescale Semiconductor, Inc. */ | 
|  | .phys_io	= MX31_AIPS1_BASE_ADDR, | 
|  | .io_pg_offst	= (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc, | 
|  | .boot_params    = MX3x_PHYS_OFFSET + 0x100, | 
|  | .map_io         = mx31_3ds_map_io, | 
|  | .init_irq       = mx31_init_irq, | 
|  | .init_machine   = mxc_board_init, | 
|  | .timer          = &mx31_3ds_timer, | 
|  | MACHINE_END |