Linux 5.7.7

[linux/fpc-iii.git] / arch / arm / mach-imx / mach-mx27_3ds.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 */

/*
 * 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 "3ds_debugboard.h"
#include "common.h"
#include "devices-imx27.h"
#include "ehci.h"
#include "hardware.h"
#include "iomux-mx27.h"
#include "ulpi.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 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,
        /* SSI4 */
        PC16_PF_SSI4_FS,
        PC17_PF_SSI4_RXD,
        PC18_PF_SSI4_TXD,
        PC19_PF_SSI4_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(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 bool otg_mode_host __initdata;

static int __init mx27_3ds_otg_mode(char *options)
{
        if (!strcmp(options, "host"))
                otg_mode_host = true;
        else if (!strcmp(options, "device"))
                otg_mode_host = false;
        else
                pr_info("otg_mode neither \"host\" nor \"device\". "
                        "Defaulting to device\n");
        return 1;
}
__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_codec_platform_data mx27_3ds_codec = {
        .dac_ssi_port = MC13783_SSI1_PORT,
        .adc_ssi_port = MC13783_SSI1_PORT,
};

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 |
                                                MC13XXX_USE_CODEC,
        .codec = &mx27_3ds_codec,
};

static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
        .flags = IMX_SSI_DMA | IMX_SSI_NET,
};

/* 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 number is run-time assigned */
                .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");
        imx27_add_imx_uart0(&uart_pdata);
        imx27_add_fec(NULL);
        imx27_add_imx_keypad(&mx27_3ds_keymap_data);
        imx27_add_imx2_wdt();

        imx27_add_spi_imx1(&spi2_pdata);
        imx27_add_spi_imx0(&spi1_pdata);

        imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
        imx27_add_imx_fb(&mx27_3ds_fb_data);

        imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
}

static void __init mx27pdk_late_init(void)
{
        mx27_3ds_sdhc1_enable_level_translator();
        imx27_add_mxc_mmc(0, &sdhc1_pdata);

        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);

        mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
        spi_register_board_info(mx27_3ds_spi_devs,
                                ARRAY_SIZE(mx27_3ds_spi_devs));

        if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
                pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");


        imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
}

static void __init mx27pdk_timer_init(void)
{
        mx27_clocks_init(26000000);
}

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,
        .init_time      = mx27pdk_timer_init,
        .init_machine = mx27pdk_init,
        .init_late      = mx27pdk_late_init,
        .restart        = mxc_restart,
MACHINE_END