linux时钟学习__s5pv210 笔记

来源：互联网发布：mac mini diy 编辑：程序博客网时间：2024/06/05 13:37

(1)

MACHINE_START //（mach-smdkv210.c）

smdkv210_map_io();

MACHINE_END

(2)

smdkv210_map_io——>

(3)

s5p_init_io()

{

s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); //查看本文件的cpu_ids

}

(4)

s3c_init_cpu()

{

cpu->map_io(); //回调对应的.map_io= s5pv210_map_io, //(在cpu_ids中的)

}

参考：

/********************************************************************

static struct cpu_table cpu_ids[] __initdata = {

{

.idcode = 0x56440100,

.idmask = 0xffffff00,

.map_io = s5p6440_map_io,

.init_clocks= s5p6440_init_clocks,

.init_uarts= s5p6440_init_uarts,

.init = s5p6440_init,

.name = name_s5p6440,

}, {

.idcode = 0x36442000,

.idmask = 0xffffff00,

.map_io = s5p6442_map_io,

.init_clocks= s5p6442_init_clocks,

.init_uarts= s5p6442_init_uarts,

.init = s5p6442_init,

.name = name_s5p6442,

}, {

.idcode = 0x43100000,

.idmask = 0xfffff000,

.map_io = s5pc100_map_io,

.init_clocks= s5pc100_init_clocks, //110时钟初始化

.init_uarts= s5pc100_init_uarts,

.init = s5pc100_init,

.name = name_s5pc100,

}, {

.idcode = 0x43110000,

.idmask = 0xfffff000,

.map_io = s5pv210_map_io,

.init_clocks= s5pv210_init_clocks, //210时钟初始化

.init_uarts= s5pv210_init_uarts,

.init = s5pv210_init,

.name = name_s5pv210,

};

**********************************************************************************/

(5)

smdkv210_map_io ——> ① s5p_init_io——>

——>②s3c24xx_init_clocks——>

① s5p_init_io——>s3c_init_cpu——> cpu->map_io(); //回调对应的.map_io = s5pv210_map_io, //(在cpu_ids中的)

②s3c24xx_init_clocks——>s5pv210_init_clocks——>s5pv210_register_clocks();

详见：云笔记