[iMX6ULL常见问题] 内核,uboot源代码有改动，Yocto如何修改？

说明：本帖子源于【i.MX6UL/i.MX6ULL开发常见问题】，是由米尔电子工程师基于米尔电子i.MX6UL/i.MX6ULL产品对i.MX6UL/i.MX6ULL开发中常见问题整理， 希望对您有帮助。i.MX6UL/i.MX6ULL系列问题在米尔科技公总号做专题分享。

内核,uboot源代码有改动，Yocto如何修改？

答：当对内核或uboot进行修改了， 再在Yocto中构建时， 需要在Yocto 中修改内核或uboot的commit ID。 

得到内核或uboot的commit ID：

在内核或uboot目录下：

git add .   (提交所有的改变)

git config - -gobal user.email “your Email address”(提交修改者邮件)

git config - - global user.name “your name” (提交修改者名字)

git commit -m “comment”添加注释

git log (得到commit ID)

 

Yocto 中内核修改地址：

 /home/roy/MYD-Y6ULX-devel/04-Source/fsl-release-Yocto/sources/meta-myir-imx6ulx/recipes-kernel/linux/linux-mys6ulx_4.1.15.bb 中的“SRCREV”

代码示例如下：

# Copyright (C) 2013-2016 Freescale Semiconductor

# Released under the MIT license (see COPYING.MIT for the terms)

SUMMARY = "Linux Kernel for MYiR MYS6ULx board"

DESCRIPTION = "Linux Kernel provided and supported by Freescale with focus on \

i.MX Family Reference Boards. It includes support for many IPs such as GPU, VPU and IPU."

require recipes-kernel/linux/linux-imx.inc

require recipes-kernel/linux/linux-dtb.inc

DEPENDS += "lzop-native bc-native"



LOCALVERSION = "-1.2.0"

SRCREV = "d87b5be6bfc5a78cd45d8efa044fddcd7f4b2ac1"

SRCBRANCH = "mys-6ulx"

SRC_URI = "git:///${HOME}/MYiR-iMX-Linux;protocol=file;branch=${SRCBRANCH} \

           file://defconfig \

        "

DEFAULT_PREFERENCE = "1"

COMPATIBLE_MACHINE = "(mx6ull|mx6ul)"

 

Yocto 中uboot 修改ID位置：

/home/roy/MYD-Y6ULX-devel/04-Source/fsl-release-Yocto/sources/meta-myir-imx6ulx/recipes-bsp/u-boot/u-boot-mys6ulx_2016.03.bb

 

下一章分享内核make menuconfig 如何剪裁，如何添加新设备？