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i.MX35-PDK: Add Camera support

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In i.MX35-PDK, OV2640  camera is populated on the
personality board. This camera is registered as a subdevice via soc-camera interface.

Signed-off-by: Alex Gershgorin <alexg@meprolight.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alex Gershgorin 2012-03-13 17:05:29 +02:00 committed by Sascha Hauer
parent 881e09f8c6
commit 25af2d9f85
1 changed files with 97 additions and 1 deletions
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98
arch/arm/mach-imx/mach-mx35_3ds.c
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@ -4,6 +4,11 @@
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*
* Copyright (C) 2011 Meprolight, Ltd.
* Alex Gershgorin <alexg@meprolight.com>
*
* Modified from i.MX31 3-Stack Development System
*
* 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
@ -34,6 +39,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/memblock.h>
#include <mach/hardware.h>
#include <mach/common.h>
@ -42,6 +48,8 @@
#include <mach/3ds_debugboard.h>
#include <video/platform_lcd.h>
#include <media/soc_camera.h>
#include "devices-imx35.h"
#define GPIO_MC9S08DZ60_GPS_ENABLE 0
@ -230,6 +238,83 @@ static iomux_v3_cfg_t mx35pdk_pads[] = {
MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
/* CSI */
MX35_PAD_TX1__IPU_CSI_D_6,
MX35_PAD_TX0__IPU_CSI_D_7,
MX35_PAD_CSI_D8__IPU_CSI_D_8,
MX35_PAD_CSI_D9__IPU_CSI_D_9,
MX35_PAD_CSI_D10__IPU_CSI_D_10,
MX35_PAD_CSI_D11__IPU_CSI_D_11,
MX35_PAD_CSI_D12__IPU_CSI_D_12,
MX35_PAD_CSI_D13__IPU_CSI_D_13,
MX35_PAD_CSI_D14__IPU_CSI_D_14,
MX35_PAD_CSI_D15__IPU_CSI_D_15,
MX35_PAD_CSI_HSYNC__IPU_CSI_HSYNC,
MX35_PAD_CSI_MCLK__IPU_CSI_MCLK,
MX35_PAD_CSI_PIXCLK__IPU_CSI_PIXCLK,
MX35_PAD_CSI_VSYNC__IPU_CSI_VSYNC,
};
/*
* Camera support
*/
static phys_addr_t mx3_camera_base __initdata;
#define MX35_3DS_CAMERA_BUF_SIZE SZ_8M
static const struct mx3_camera_pdata mx35_3ds_camera_pdata __initconst = {
.flags = MX3_CAMERA_DATAWIDTH_8,
.mclk_10khz = 2000,
};
static int __init imx35_3ds_init_camera(void)
{
int dma, ret = -ENOMEM;
struct platform_device *pdev =
imx35_alloc_mx3_camera(&mx35_3ds_camera_pdata);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
if (!mx3_camera_base)
goto err;
dma = dma_declare_coherent_memory(&pdev->dev,
mx3_camera_base, mx3_camera_base,
MX35_3DS_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
goto err;
ret = platform_device_add(pdev);
if (ret)
err:
platform_device_put(pdev);
return ret;
}
static const struct ipu_platform_data mx35_3ds_ipu_data __initconst = {
.irq_base = MXC_IPU_IRQ_START,
};
static struct i2c_board_info mx35_3ds_i2c_camera = {
I2C_BOARD_INFO("ov2640", 0x30),
};
static struct soc_camera_link iclink_ov2640 = {
.bus_id = 0,
.board_info = &mx35_3ds_i2c_camera,
.i2c_adapter_id = 0,
.power = NULL,
};
static struct platform_device mx35_3ds_ov2640 = {
.name = "soc-camera-pdrv",
.id = 0,
.dev = {
.platform_data = &iclink_ov2640,
},
};
static int mx35_3ds_otg_init(struct platform_device *pdev)
@ -320,7 +405,10 @@ static void __init mx35_3ds_init(void)
i2c_register_board_info(
0, i2c_devices_3ds, ARRAY_SIZE(i2c_devices_3ds));
imx35_add_ipu_core(&mx3_ipu_data);
imx35_add_ipu_core(&mx35_3ds_ipu_data);
platform_device_register(&mx35_3ds_ov2640);
imx35_3ds_init_camera();
imx35_fb_pdev = imx35_add_mx3_sdc_fb(&mx3fb_pdata);
mx35_3ds_lcd.dev.parent = &imx35_fb_pdev->dev;
platform_device_register(&mx35_3ds_lcd);
@ -335,6 +423,13 @@ struct sys_timer mx35pdk_timer = {
.init = mx35pdk_timer_init,
};
static void __init mx35_3ds_reserve(void)
{
/* reserve MX35_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
mx3_camera_base = arm_memblock_steal(MX35_3DS_CAMERA_BUF_SIZE,
MX35_3DS_CAMERA_BUF_SIZE);
}
MACHINE_START(MX35_3DS, "Freescale MX35PDK")
/* Maintainer: Freescale Semiconductor, Inc */
.atag_offset = 0x100,
@ -344,5 +439,6 @@ MACHINE_START(MX35_3DS, "Freescale MX35PDK")
.handle_irq = imx35_handle_irq,
.timer = &mx35pdk_timer,
.init_machine = mx35_3ds_init,
.reserve = mx35_3ds_reserve,
.restart = mxc_restart,
MACHINE_END