手上的smart210配置如下
DDR ： 512M addr : 0x20000000~0x3FFFFFFF
Nand： 1G （SLC）(base_addr 0xB0E00000)
开发板没有onenand, 支持nand/SD卡启动。
smart210启动
参考S5PV210_iROM_ApplicationNote_Preliminary_20091126.pdf
操作顺序
注意：手册里面补充BL1 / BL2 : It can be variable size copied from boot device to internal SRAM area.
BL1 max. size is 16KB. BL2 max. size is 80KB.
① iROM can do initial boot up : initialize system clock, device specific controller and booting device.
② iROM boot codes can load boot-loader to SRAM. The boot-loader is called BL1.
then iROM verify integrity of BL1 in case of secure boot mode.
③ BL1 will be executed: BL1 will load remained boot loader which is called BL2 on the SRAM
then BL1 verify integrity of BL2 in case of secure boot mode.
④ BL2 will be executed : BL2 initialize DRAM controller then load OS data to SDRAM.
⑤ Finally, jump to start address of OS. That will make good environment to use system
对于BL0：
再看内存分配：
对于SD/MMC启动，官方给的分区
启动第一个block 保留是强制的。
最后，给出了SD/MMC等启动的说明
