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Diffstat (limited to 'kernel/arch/arm/mach-imx/mach-mx27_3ds.c')
-rw-r--r--kernel/arch/arm/mach-imx/mach-mx27_3ds.c551
1 files changed, 551 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-mx27_3ds.c b/kernel/arch/arm/mach-imx/mach-mx27_3ds.c
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index 000000000..9ef4640f3
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+++ b/kernel/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -0,0 +1,551 @@
+/*
+ * 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 <media/soc_camera.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)
+#define CSI_PWRDWN IMX_GPIO_NR(4, 19)
+#define CSI_RESET IMX_GPIO_NR(3, 6)
+
+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,
+ /* CSI */
+ PB10_PF_CSI_D0,
+ PB11_PF_CSI_D1,
+ PB12_PF_CSI_D2,
+ PB13_PF_CSI_D3,
+ PB14_PF_CSI_D4,
+ PB15_PF_CSI_MCLK,
+ PB16_PF_CSI_PIXCLK,
+ PB17_PF_CSI_D5,
+ PB18_PF_CSI_D6,
+ PB19_PF_CSI_D7,
+ PB20_PF_CSI_VSYNC,
+ PB21_PF_CSI_HSYNC,
+ CSI_PWRDWN | GPIO_GPIO | GPIO_OUT,
+ CSI_RESET | GPIO_GPIO | GPIO_OUT,
+ /* SSI4 */
+ PC16_PF_SSI4_FS,
+ PC17_PF_SSI4_RXD,
+ PC18_PF_SSI4_TXD,
+ PC19_PF_SSI4_CLK,
+};
+
+static struct gpio mx27_3ds_camera_gpios[] = {
+ { CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
+ { CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
+};
+
+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"),
+ REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.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 regulator_consumer_supply vvib_consumers[] = {
+ REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
+};
+
+static struct regulator_init_data vvib_init = {
+ .constraints = {
+ .min_uV = 1300000,
+ .max_uV = 1300000,
+ .apply_uV = 1,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
+ .consumer_supplies = vvib_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,
+ }, {
+ .id = MC13783_REG_VVIB, /* Power OV2640 */
+ .init_data = &vvib_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 int mx27_3ds_camera_power(struct device *dev, int on)
+{
+ /* enable or disable the camera */
+ pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
+ gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
+
+ if (!on)
+ goto out;
+
+ /* If enabled, give a reset impulse */
+ gpio_set_value(CSI_RESET, 0);
+ msleep(20);
+ gpio_set_value(CSI_RESET, 1);
+ msleep(100);
+
+out:
+ return 0;
+}
+
+static struct i2c_board_info mx27_3ds_i2c_camera = {
+ I2C_BOARD_INFO("ov2640", 0x30),
+};
+
+static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
+ { .supply = "cmos_vcore" },
+ { .supply = "cmos_2v8" },
+};
+
+static struct soc_camera_link iclink_ov2640 = {
+ .bus_id = 0,
+ .board_info = &mx27_3ds_i2c_camera,
+ .i2c_adapter_id = 0,
+ .power = mx27_3ds_camera_power,
+ .regulators = mx27_3ds_camera_regs,
+ .num_regulators = ARRAY_SIZE(mx27_3ds_camera_regs),
+};
+
+static struct platform_device mx27_3ds_ov2640 = {
+ .name = "soc-camera-pdrv",
+ .id = 0,
+ .dev = {
+ .platform_data = &iclink_ov2640,
+ },
+};
+
+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 struct platform_device *devices[] __initdata = {
+ &mx27_3ds_ov2640,
+};
+
+static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
+ .clk = 26000000,
+};
+
+static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
+ .bitrate = 100000,
+};
+
+static void __init mx27pdk_init(void)
+{
+ int ret;
+ 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();
+ 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);
+ 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");
+ imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
+ platform_add_devices(devices, ARRAY_SIZE(devices));
+ imx27_add_imx_fb(&mx27_3ds_fb_data);
+
+ ret = gpio_request_array(mx27_3ds_camera_gpios,
+ ARRAY_SIZE(mx27_3ds_camera_gpios));
+ if (ret) {
+ pr_err("Failed to request camera gpios");
+ iclink_ov2640.power = NULL;
+ }
+
+ imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
+ imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
+
+ 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,
+ .restart = mxc_restart,
+MACHINE_END