diff options
| -rw-r--r-- | arch/arm/mach-mx3/mach-mx31_3ds.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c index d760a06..544d3e4 100644 --- a/arch/arm/mach-mx3/mach-mx31_3ds.c +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c @@ -25,6 +25,9 @@ #include <linux/regulator/machine.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> +#include <linux/memblock.h> + +#include <media/soc_camera.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -39,6 +42,7 @@ #include <mach/mmc.h> #include <mach/ipu.h> #include <mach/mx3fb.h> +#include <mach/mx3_camera.h> #include "devices-imx31.h" #include "devices.h" @@ -141,6 +145,106 @@ static int mx31_3ds_pins[] = { MX31_PIN_HSYNC__HSYNC, MX31_PIN_FPSHIFT__FPSHIFT, MX31_PIN_CONTRAST__CONTRAST, + /* CSI */ + MX31_PIN_CSI_D6__CSI_D6, + MX31_PIN_CSI_D7__CSI_D7, + MX31_PIN_CSI_D8__CSI_D8, + MX31_PIN_CSI_D9__CSI_D9, + MX31_PIN_CSI_D10__CSI_D10, + MX31_PIN_CSI_D11__CSI_D11, + MX31_PIN_CSI_D12__CSI_D12, + MX31_PIN_CSI_D13__CSI_D13, + MX31_PIN_CSI_D14__CSI_D14, + MX31_PIN_CSI_D15__CSI_D15, + MX31_PIN_CSI_HSYNC__CSI_HSYNC, + MX31_PIN_CSI_MCLK__CSI_MCLK, + MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, + MX31_PIN_CSI_VSYNC__CSI_VSYNC, + MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */ + IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */ +}; + +/* + * Camera support + */ +static phys_addr_t mx3_camera_base __initdata; +#define MX31_3DS_CAMERA_BUF_SIZE SZ_8M + +#define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5) +#define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1) + +static struct gpio mx31_3ds_camera_gpios[] = { + { MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" }, + { MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" }, +}; + +static int __init mx31_3ds_camera_alloc_dma(void) +{ + int dma; + + if (!mx3_camera_base) + return -ENOMEM; + + dma = dma_declare_coherent_memory(&mx3_camera.dev, + mx3_camera_base, mx3_camera_base, + MX31_3DS_CAMERA_BUF_SIZE, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + if (!(dma & DMA_MEMORY_MAP)) + return -ENOMEM; + + return 0; +} + +static int mx31_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(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1); + + if (!on) + goto out; + + /* If enabled, give a reset impulse */ + gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0); + msleep(20); + gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 1); + msleep(100); + +out: + return 0; +} + +static struct i2c_board_info mx31_3ds_i2c_camera = { + I2C_BOARD_INFO("ov2640", 0x30), +}; + +static struct regulator_bulk_data mx31_3ds_camera_regs[] = { + { .supply = "cmos_vcore" }, + { .supply = "cmos_2v8" }, +}; + +static struct soc_camera_link iclink_ov2640 = { + .bus_id = 0, + .board_info = &mx31_3ds_i2c_camera, + .i2c_adapter_id = 0, + .power = mx31_3ds_camera_power, + .regulators = mx31_3ds_camera_regs, + .num_regulators = ARRAY_SIZE(mx31_3ds_camera_regs), +}; + +static struct platform_device mx31_3ds_ov2640 = { + .name = "soc-camera-pdrv", + .id = 0, + .dev = { + .platform_data = &iclink_ov2640, + }, +}; + +struct mx3_camera_pdata mx31_3ds_camera_pdata = { + .dma_dev = &mx3_ipu.dev, + .flags = MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 2600, }; /* @@ -307,6 +411,7 @@ static struct regulator_init_data vmmc2_init = { static struct regulator_consumer_supply vmmc1_consumers[] = { REGULATOR_SUPPLY("lcd_2v8", NULL), + REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"), }; static struct regulator_init_data vmmc1_init = { @@ -337,6 +442,22 @@ static struct regulator_init_data vgen_init = { .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 mx31_3ds_regulators[] = { { .id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */ @@ -360,6 +481,9 @@ static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = { }, { .id = MC13783_REG_VGEN, /* Power LCD */ .init_data = &vgen_init, + }, { + .id = MC13783_REG_VVIB, /* Power CMOS */ + .init_data = &vvib_init, }, }; @@ -552,8 +676,14 @@ static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = { .bitrate = 100000, }; +static struct platform_device *devices[] __initdata = { + &mx31_3ds_ov2640, +}; + static void __init mx31_3ds_init(void) { + int ret; + mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins), "mx31_3ds"); @@ -564,6 +694,8 @@ static void __init mx31_3ds_init(void) spi_register_board_info(mx31_3ds_spi_devs, ARRAY_SIZE(mx31_3ds_spi_devs)); + platform_add_devices(devices, ARRAY_SIZE(devices)); + imx31_add_imx_keypad(&mx31_3ds_keymap_data); mx31_3ds_usbotg_init(); @@ -591,6 +723,20 @@ static void __init mx31_3ds_init(void) imx31_add_spi_imx0(&spi0_pdata); mxc_register_device(&mx3_ipu, &mx3_ipu_data); mxc_register_device(&mx3_fb, &mx3fb_pdata); + + /* CSI */ + /* Camera power: default - off */ + ret = gpio_request_array(mx31_3ds_camera_gpios, + ARRAY_SIZE(mx31_3ds_camera_gpios)); + if (ret) { + pr_err("Failed to request camera gpios"); + iclink_ov2640.power = NULL; + } + + if (!mx31_3ds_camera_alloc_dma()) + mxc_register_device(&mx3_camera, &mx31_3ds_camera_pdata); + else + pr_err("Failed to allocate dma memory for camera"); } static void __init mx31_3ds_timer_init(void) @@ -602,6 +748,15 @@ static struct sys_timer mx31_3ds_timer = { .init = mx31_3ds_timer_init, }; +static void __init mx31_3ds_reserve(void) +{ + /* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */ + mx3_camera_base = memblock_alloc(MX31_3DS_CAMERA_BUF_SIZE, + MX31_3DS_CAMERA_BUF_SIZE); + memblock_free(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE); + memblock_remove(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE); +} + MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)") /* Maintainer: Freescale Semiconductor, Inc. */ .boot_params = MX3x_PHYS_OFFSET + 0x100, @@ -610,4 +765,5 @@ MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)") .init_irq = mx31_init_irq, .timer = &mx31_3ds_timer, .init_machine = mx31_3ds_init, + .reserve = mx31_3ds_reserve, MACHINE_END |
