diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx31moboard-smartbot.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx31moboard-smartbot.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx31moboard-smartbot.c b/arch/arm/mach-mx3/mx31moboard-smartbot.c new file mode 100644 index 00000000000..52a69fc8b14 --- /dev/null +++ b/arch/arm/mach-mx3/mx31moboard-smartbot.c @@ -0,0 +1,162 @@ +/* + * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/types.h> + +#include <mach/common.h> +#include <mach/hardware.h> +#include <mach/imx-uart.h> +#include <mach/iomux-mx3.h> + +#include <media/soc_camera.h> + +#include "devices.h" + +static unsigned int smartbot_pins[] = { + /* UART1 */ + MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2, + MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2, + /* CSI */ + MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5, + 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_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, + /* ENABLES */ + MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9, + MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11, +}; + +static struct imxuart_platform_data uart_pdata = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +#define CAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) +#define CAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) + +static int smartbot_cam_power(struct device *dev, int on) +{ + gpio_set_value(CAM_POWER, !on); + return 0; +} + +static int smartbot_cam_reset(struct device *dev) +{ + gpio_set_value(CAM_RST_B, 0); + udelay(100); + gpio_set_value(CAM_RST_B, 1); + return 0; +} + +static struct i2c_board_info smartbot_i2c_devices[] = { + { + I2C_BOARD_INFO("mt9t031", 0x5d), + }, +}; + +static struct soc_camera_link base_iclink = { + .bus_id = 0, /* Must match with the camera ID */ + .power = smartbot_cam_power, + .reset = smartbot_cam_reset, + .board_info = &smartbot_i2c_devices[0], + .i2c_adapter_id = 0, + .module_name = "mt9t031", +}; + +static struct platform_device smartbot_camera[] = { + { + .name = "soc-camera-pdrv", + .id = 0, + .dev = { + .platform_data = &base_iclink, + }, + }, +}; + +static struct platform_device *smartbot_cameras[] __initdata = { + &smartbot_camera[0], +}; + +static int __init smartbot_cam_init(void) +{ + int ret = gpio_request(CAM_RST_B, "cam-reset"); + if (ret) + return ret; + gpio_direction_output(CAM_RST_B, 1); + ret = gpio_request(CAM_POWER, "cam-standby"); + if (ret) + return ret; + gpio_direction_output(CAM_POWER, 0); + + return 0; +} + +#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) +#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) +#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) +#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) + +static void smartbot_resets_init(void) +{ + if (!gpio_request(POWER_EN, "power-enable")) { + gpio_direction_output(POWER_EN, 0); + gpio_export(POWER_EN, false); + } + + if (!gpio_request(DSPIC_RST_B, "dspic-rst")) { + gpio_direction_output(DSPIC_RST_B, 0); + gpio_export(DSPIC_RST_B, false); + } + + if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { + gpio_direction_output(TRSLAT_RST_B, 0); + gpio_export(TRSLAT_RST_B, false); + } + + if (!gpio_request(SEL3, "sel3")) { + gpio_direction_input(SEL3); + gpio_export(SEL3, true); + } +} +/* + * system init for baseboard usage. Will be called by mx31moboard init. + */ +void __init mx31moboard_smartbot_init(void) +{ + printk(KERN_INFO "Initializing mx31smartbot peripherals\n"); + + mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins), + "smartbot"); + + mxc_register_device(&mxc_uart_device1, &uart_pdata); + + smartbot_resets_init(); + + smartbot_cam_init(); + platform_add_devices(smartbot_cameras, ARRAY_SIZE(smartbot_cameras)); +} |