/*
* 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 <linux/spi/l4f00242t03.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 IMX_GPIO_NR(2, 25)
#define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
#define SPI2_SS0 IMX_GPIO_NR(4, 21)
#define EXPIO_PARENT_INT gpio_to_irq(IMX_GPIO_NR(3, 28))
#define PMIC_INT IMX_GPIO_NR(3, 14)
#define SPI1_SS0 IMX_GPIO_NR(4, 28)
#define SD1_CD IMX_GPIO_NR(2, 26)
#define LCD_RESET IMX_GPIO_NR(1, 3)
#define LCD_ENABLE IMX_GPIO_NR(1, 31)
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,
/* CSPI1 */
PD31_PF_CSPI1_MOSI,
PD30_PF_CSPI1_MISO,
PD29_PF_CSPI1_SCLK,
PD25_PF_CSPI1_RDY,
SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
/* CSPI2 */
PD22_PF_CSPI2_SCLK,
PD23_PF_CSPI2_MISO,
PD24_PF_CSPI2_MOSI,
SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
/* I2C1 */
PD17_PF_I2C_DATA,
PD18_PF_I2C_CLK,
/* PMIC INT */
PMIC_INT | GPIO_GPIO | GPIO_IN,
/* LCD */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA23_PF_LD17,
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
LCD_RESET | GPIO_GPIO | GPIO_OUT,
};
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(gpio_to_irq(SD1_CD), 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(gpio_to_irq(SD1_CD), 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_init_data gpo_init = {
.constraints = {
.boot_on = 1,
.always_on = 1,
}
};
static struct regulator_consumer_supply vmmc1_consumers[] = {
REGULATOR_SUPPLY("vcore", "spi0.0"),
};
static struct regulator_init_data vmmc1_init = {
.constraints = {
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
.consumer_supplies = vmmc1_consumers,
};
static struct regulator_consumer_supply vgen_consumers[] = {
REGULATOR_SUPPLY("vdd", "spi0.0"),
};
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,
}, {
.id = MC13783_REG_GPO1, /* Turn on 1.8V */
.init_data = &gpo_init,
}, {
.id = MC13783_REG_GPO3, /* Turn on 3.3V */
.init_data = &gpo_init,
},
};
/* MC13783 */
static struct mc13xxx_platform_data mc13783_pdata = {
.regulators = {
.regulators = mx27_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
},
.flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC,
};
/* SPI */
static int spi1_chipselect[] = {SPI1_SS0};
static const struct spi_imx_master spi1_pdata __initconst = {
.chipselect = spi1_chipselect,
.num_chipselect = ARRAY_SIZE(spi1_chipselect),
};
static int spi2_chipselect[] = {SPI2_SS0};
static const struct spi_imx_master spi2_pdata __initconst = {
.chipselect = spi2_chipselect,
.num_chipselect = ARRAY_SIZE(spi2_chipselect),
};
static struct imx_fb_videomode mx27_3ds_modes[] = {
{ /* 480x640 @ 60 Hz */
.mode = {
.name = "Epson-VGA",
.refresh = 60,
.xres = 480,
.yres = 640,
.pixclock = 41701,
.left_margin = 20,
.right_margin = 41,
.upper_margin = 10,
.lower_margin = 5,
.hsync_len = 20,
.vsync_len = 10,
.sync = FB_SYNC_OE_ACT_HIGH |
FB_SYNC_CLK_INVERT,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
},
.bpp = 16,
.pcr = 0xFAC08B82,
},
};
static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
.mode = mx27_3ds_modes,
.num_modes = ARRAY_SIZE(mx27_3ds_modes),
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
};
/* LCD */
static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
.reset_gpio = LCD_RESET,
.data_enable_gpio = LCD_ENABLE,
};
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 = IMX_GPIO_TO_IRQ(PMIC_INT),
.mode = SPI_CS_HIGH,
}, {
.modalias = "l4f00242t03",
.max_speed_hz = 5000000,
.bus_num = 0,
.chip_select = 0, /* SS0 */
.platform_data = &mx27_3ds_lcd_pdata,
},
};
static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
.bitrate = 100000,
};
static void __init mx27pdk_init(void)
{
imx27_soc_init();
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);
imx27_add_spi_imx0(&spi1_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);
imx27_add_imx_fb(&mx27_3ds_fb_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. */
.atag_offset = 0x100,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.handle_irq = imx27_handle_irq,
.timer = &mx27pdk_timer,
.init_machine = mx27pdk_init,
MACHINE_END
