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修改debug之后 移植内核启动失败

linux3.3 将源码uboot及kernel debug口修改到uart1之后,在将内核中的配置 uncompress.h及board-omapl138-lcdk.c中关于uart部分修改至串口1,
还有menuconfig环境变量部分,但是编译完成烧写后出现停止在 Uncompressing Linux... done, booting the kernel.状态,烧写均是通过uart1及网口,
uboot启动正常,启动方式是nandflash,能否请教一下如果需经由uart1debug烧写成功内核的话,内核还需经何种修改,非常感谢。