Linux启动过程分析（十一）--PLL各个外设时钟频率的设置
Board-da850-sdi.c (arch\arm\mach-davinci) 中的：MACHINE_START(DAVINCI_DA850_SDI, "DA850 SDI Development Board") .atag_offset = 0x100, .map_io = da850_evm_map_io, .init_irq = cp_i
