1、
#include
strr1, [r0]
下图的黄色部分表明这出设置的作用，但我不明白，为何要设为0xd，要实现这个目标
@ Xm0CSn2 = NFCON CS0, Xm0CSn3 = NFCON CS1，好像与此处设计无关？
注：
Memory port 0 is shared by using EBI (External Bus Interface).
Memory port 1 is used only by DMC1.
EBI module supports the share of pad interface used by 5 memory controllers (SROMC, two OneNANDCs,
CFCON, and NFCON).
SHARING CHIP SELECT FOR MEMORYPORT 0
The decision of which memory controller owns specific memory bank is decided both by following three
factors.
Booting mode
MP0_CS_CFG regsiter residing in System Controller
XSELNAND input port value
2、
ldrr0, =ELFIN_DMC1_BASE@DMC1 base address 0x7e001000
只读寄存器。
3、
ldr r1, =0x04
str r1, [r0, #INDEX_DMC_MEMC_CMD]
#define INDEX_DMC_MEMC_CMD (0x04)
看到下面的图，应该知道为什么了吧？
配置为：Configure模式
4、
其中有两个寄存器没赋值，如下所示：
下面那个可能采用的是默认值。而上面的是只写寄存器，可能不需要赋值。