From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-imx/mach-mx27_3ds.c | 317 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 317 insertions(+) create mode 100644 arch/arm/mach-imx/mach-mx27_3ds.c (limited to 'arch/arm/mach-imx/mach-mx27_3ds.c') 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 + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 -- cgit v1.2.3