高通平台lk是怎样匹配加载DTB的

根据dev_tree_get_entry_info函数中的提示，在dts文件中，将qcom,board-id修改为0x0102000a就可以了-4.png

/* For V3 version of DTBs we have platform version field as part

    * of variant ID, in such case the subtype will be mentioned as 0x0

    * As the qcom, board-id = <0xSSPMPmPH, 0x0>

    * SS -- Subtype

    * PM -- Platform major version

    * Pm -- Platform minor version

    * PH -- Platform hardware CDP/MTP

    * In such case to make it compatible with LK algorithm move the subtype

    * fROM variant_id to subtype field

跟了代码，还有以下疑问，请大家帮忙解决，十分感谢！

问题一：dev_tree_appended、dev_tree_compatible大概的流程

问题二：board_platform_id、board_soc_version、board_target_id、board_hardware_subtype这几个值是哪里来的？重点解析一下函数platform_detect中调用的smem_read_alloc_entry_offset
问题三：整体解析一下DTB，也就是dts文件的加载匹配过程，谢谢！

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参考资料:http://bbs.16rd.com/topic-XINPIANBAIKE.html