uboot啓動流程分析3- lowlevel_init

arch/arm/cpu/armv7/lowlevel_init.S， 22行，初始化sp，指向地址CONFIG_SYS_INIT_SP_ADDR，是多少？？？- - include/configs/mx6ullevk.h arch/arm/include/asm/arch-mx6/imx-regs.h IRAM_BASE_ADDR 是6ULL內部OCRAM地址，可查看參考手冊，大小爲 0x000

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