Linux-3.0.35 驱动和设备 ======================== 文档说明 --------- 系统环境说明 ~~~~~~~~~~~~~ - 编译主机CPU架构：64位 - 编译主机系统：Linux - Linux发行版：Ubuntu - Ubuntu版本类型：服务器版 - Ubuntu版本号：12.04.5 - Ubuntu系统类型：x86-64 | 注意：开发主机请使用ubuntu 12.04.5 x86-64（桌面版或服务器版均可），使用其他发行版的Linux或Ubuntu的其它版本可能会遇到的不必要的问题。 操作说明 ~~~~~~~~~ | 1）文档中以“$”开头的行，其后是Linux命令。 | 2）文档中所有的Linux命令建议手动输入到Linux主机执行（直接复制、粘贴到Linux主机上执行，可能会执行失败）。 | 3）文档中的Linux执行命令，如果空格后的下一个字符是“-”的（如：sudo apt-get –y install之类的），请手动输入到Linux主机执行（直接复制、粘贴到Linux主机上执行，通常会执行失败）。 | 4）文档中所有一行没写完的Linux命令请手动输入到Linux主机执行，（因为复制、粘贴命令不能包含类似“换行符”之类的特殊字符）。 | 5）按文档输入并执行Linux命令时注意观察命令的执行结果与文档图片中的是否一致，以确认命令是否输入有误及是否执行失败。 | 6）第一遍编译请严格按照文档进行，否则可能出现莫名其妙的错误。 截图说明 ~~~~~~~~~ | 为使视图看起来简洁整齐，截图中的命令提示符统一使用myzr$。 图片中的Linux命令 ~~~~~~~~~~~~~~~~~~ | 在文档的图片中观察“linyn@u12045-serv:~$”开头的行可以直观的看到输入的 驱动及相关设备文件 ------------------ | 评估板对应的Linux-3.0.35版本及对应的源码文件和设备见下表： +--------------+---------------------------------------+-----------------------+ | 功能 | 源码位置 | Linux 设备和文件夹 | +==============+=======================================+=======================+ | GPIO | drivers/gpio/gpiolib.c | /sys/class/gpio/ | +--------------+---------------------------------------+-----------------------+ | LED | drivers/leds/leds-gpio.c | /sys/class/leds/ | +--------------+---------------------------------------+-----------------------+ | BUTTON | drivers/input/keyboard/gpio_keys.c | /dev/input/event0 | +--------------+---------------------------------------+-----------------------+ | LVDS | drivers/video/mxc/ldb.c | /dev/fb* | +--------------+---------------------------------------+-----------------------+ | LCD | drivers/video/mxc/mxc_lcdif.c | /dev/fb* | +--------------+---------------------------------------+-----------------------+ | BACKLIGHT | drivers/video/backlight/backlight.c | /sys/class/backlight/ | +--------------+---------------------------------------+-----------------------+ | UART | drivers/tty/serial/imx.c | /dev/ttymxc* | +--------------+---------------------------------------+-----------------------+ | I2C | drivers/i2c/i2c-imx.c | /dev/i2c-* | +--------------+---------------------------------------+-----------------------+ | SPI | drivers/spi/spi_imx.c | /dev/spidev* | +--------------+---------------------------------------+-----------------------+ | MMC/SD/SDIO | drivers/mmc/host/ | /dev/mmcblk* | +--------------+---------------------------------------+-----------------------+ | TOUCH SCREEN | drivers/input/touchscreen/ft5x06_ts.c | /dev/input/event1 | +--------------+---------------------------------------+-----------------------+ | FEC | drivers/net/fec.c | eth0 | +--------------+---------------------------------------+-----------------------+ | SMSC95XX | drivers/net/usb/smsc95xx.c | eth1 | +--------------+---------------------------------------+-----------------------+ | PWM | arch/arm/plat-mxc/pwm.c | NC | +--------------+---------------------------------------+-----------------------+ | HDMI | drivers/mfd/mxc-hdmi-core.c | /dev/mxc_hdmi | +--------------+---------------------------------------+-----------------------+ | IPU | drivers/mxc/ipu3/ | /dev/mxc_ipu | +--------------+---------------------------------------+-----------------------+ | GPU | drivers/mxc/gpu-viv/ | /dev/galcore | +--------------+---------------------------------------+-----------------------+ | VPU | drivers/mxc/vpu/mxc_vpu.c | /dev/mxc_vpu | +--------------+---------------------------------------+-----------------------+ | OV5642 | drivers/media/video/mxc/capture/ | /dev/video0 | +--------------+---------------------------------------+-----------------------+ | MIPI DSI | drivers/video/mxc/mipi_dsi.c | NC | +--------------+---------------------------------------+-----------------------+ | MIPI CSI2 | drivers/mxc/mipi/mxc_mipi_csi2.c | NC | +--------------+---------------------------------------+-----------------------+ | V4L2 | drivers/media/video/mxc/ | NC | +--------------+---------------------------------------+-----------------------+ | PCIE | arch/arm/mach-mx6/pcie.c | /sys/class/pci_bus | +--------------+---------------------------------------+-----------------------+ | TW6865 | drivers/media/video/TW68-video.c | /dev/video0~7 | +--------------+---------------------------------------+-----------------------+ | SATA | arch/arm/plat-mxc/ahci_sata.c | /dev/sda或/dev/sdb | + +---------------------------------------+-----------------------+ | | drivers/ata/ahci.c | | + +---------------------------------------+-----------------------+ | | drivers/ata/ahci_platform.c | | +--------------+---------------------------------------+-----------------------+ | WM8962 | sound/soc/imx/imx-wm8962.c | /dev/snd/ | +--------------+---------------------------------------+-----------------------+ | ISL1208 | drivers/rtc/rtc-isl1208.c | /dev/rtc0 | +--------------+---------------------------------------+-----------------------+ | USB | drivers/usb/ | NC | +--------------+---------------------------------------+-----------------------+ | FLEXCAN | drivers/net/can/flexcan.c | can0,can1 | +--------------+---------------------------------------+-----------------------+ | WATCHDOG | drivers/watchdog/imx2_wdt.c | /dev/watchdog | +--------------+---------------------------------------+-----------------------+ | 板级目录：arch/arm/mach-mx6/ | 板级文件：arch/arm/mach-mx6/board-myimx6ek\*\*\*.c ("\*\*\*"表示200或314) | 管脚功能定义：arch/arm/mach-mx6/board-myimx6ek\*\*\*-6*.h ("\*\*\*"表示200或314，“*”表示q或u) | 管脚标号定义：arch/arm/plat-mxc/include/mach/iomux-mx6*.h (“*”表示q或dl) .. attention:: 注意：如果想详细了解驱动的相关文件，请查看“i.MX_6Dual6Quad_Linux_Reference_Manual.pdf”文件；想详细查看寄存器，请查看“IMX6DQRM_201806.pdf”文件。