主要有以下几个地方需要注意：
1. Image_Cfg.h
[cpp] view plaincopy
- // DRAM1 Base Address
- #define DRAM_BASE_PA_START (0x40000000)
- #define DRAM_BASE_CA_START (0x80000000)
- #define DRAM_BASE_UA_START (0xA0000000)
- #define DRAM_BASE_PA_LAST (0x48000000)
- #define DRAM_BASE_CA_LAST (0x88000000)
- #define DRAM_BASE_UA_LAST (0xA8000000)
- // Extra DRAM1 Base Address for V210
- #define DRAM_EXTRA_BASE_PA_START (0x48000000)
- #define DRAM_EXTRA_BASE_CA_START (0x99600000)
- #define DRAM_EXTRA_BASE_UA_START (0xB9600000)
- #define DRAM_EXTRA_SIZE (0x06A00000)
- #define DRAM_EXTRA_BASE_UA_LAST (DRAM_EXTRA_BASE_UA_START + DRAM_EXTRA_SIZE)
- // DRAM0 Base Address
- #define DRAM0_BASE_PA_START (0x20000000)
- #define DRAM0_BASE_CA_START (0x88000000)
- #define DRAM0_BASE_UA_START (0xA8000000)
- #define DRAM0_BASE_PA_LAST (0x28000000)
- #define DRAM0_BASE_CA_LAST (0x90000000)
- #define DRAM0_BASE_UA_LAST (0xB0000000)
2. oemaddrtab_cfg.inc
[cpp] view plaincopy
- DCD DRAM_BASE_CA_START, DRAM_BASE_PA_START, 128 ; 128 MB DRAM
- DCD DRAM0_BASE_CA_START, DRAM0_BASE_PA_START, 128 ; 128 MB DRAM on DMC0
- DCD BASE_REG_CA_CHIPID, BASE_REG_PA_CHIPID, 43 ; 43 MB SFR, 0x9000_0000 - 0x92AF_FFFF
3. image_cfg.inc
[cpp] view plaincopy
- ;------------------------------------------------------------------------------
- ; SDRAM
- ;------------------------------------------------------------------------------
- DRAM0_BASE_PA_START EQU (0x20000000)
- DRAM0_BASE_CA_START EQU (0x88000000)
- DRAM0_BASE_UA_START EQU (0xA8000000)
- DRAM0_SIZE EQU (0x08000000) ;128M
-
- ;------------------------------------------------------------------------------
- ; SDRAM
- ;------------------------------------------------------------------------------
- DRAM_BASE_PA_START EQU (0x40000000)
- DRAM_BASE_CA_START EQU (0x80000000)
- DRAM_BASE_UA_START EQU (0xA0000000)
- DRAM_SIZE EQU (0x08000000) ;128M
-
- ;------------------------------------------------------------------------------
- ; Extra DRAM for V210
- ;------------------------------------------------------------------------------
- DRAM_EXTRA_BASE_PA_START EQU (0x48000000)
- DRAM_EXTRA_BASE_CA_START EQU (0x99600000)
- DRAM_EXTRA_BASE_UA_START EQU (0xB9600000)
- DRAM_EXTRA_SIZE EQU (0x06A00000) ;106M
4. init.c
[cpp] view plaincopy
- static DWORD OEMEnumExtensionDRAM(
- PMEMORY_SECTION pMemSections,
- DWORD cMemSections)
- {
- DWORD cSections = 0;
- if (cSections < cMemSections)
- {
- // DRAM0 Area
- pMemSections[cSections].dwFlags = 0;
- pMemSections[cSections].dwStart = DRAM0_BASE_CA_START; //0x88000000
- pMemSections[cSections].dwLen = ONEDRAM_EXTSIZE_FOR_AP;
- cSections++;
- // Extra DRAM1 Area 0x48000000, 106MB
- pMemSections[cSections].dwFlags = 0;
- pMemSections[cSections].dwStart = DRAM_EXTRA_BASE_CA_START; //0x99600000
- pMemSections[cSections].dwLen = DRAM_EXTRA_SIZE;
- cSections++;
- }
- return cSections;
- }
image_cfg.inc貌似不改也没问题。
其余的关于内存的一些配置，在System_Init.c中，可以对照内存的Spec以及210手册中Memory配置部分即可。
我自己也改过，转载的文章没有问题。
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