This doc explain how to configure a new LPDDR4 and test it on S32G, contents as follows:
目录
1 硬件资源，文档及工具下载... 2
1.1 硬件资源... 2
1.2 内存配置测试相关的文档... 2
1.3 内存配置与压力测试工具. 3
2 内存设计要求... 3
3 LPDDR4基础... 3
3.1 基本知识... 3
3.2 Inline ECC.. 4
4 硬件连接... 6
5 S32G+LPDDR4内存配置与测试步骤... 8
5.1 配置LPDDR4初始化寄存器设置... 9
5.2 使用内存测试工具初始化PHY及生成DDRC配置Uboot源代码 11
5.3 生成DDRC配置ATF源代码(从BSP32开始) 14
5.4 测试内存... 18
5.5 其它尺寸的LPDDR4配置... 19
6 测试失败的DEBUG.. 24
7 内存参数应用到Uboot中... 25
8 内存参数应用到ATF中... 25
9 附录... 25
9.1 一个重要的DDR TOOL bug Fix. 25
9.2 Uboot DDR测试工具... 26
9.3 Kernel DDR测试工具... 27
9.4 附DDR tool测试项截图... 28
Contents
1 Hardware Materials, Docs and Tools Needed. 2
1.1 Hardware resource. 2
1.2 Related docs of memory configuration and test 2
1.3 Memory configuration and test tools. 3
2 Memory Hardware Design Requirement 3
3 LPDDR4 Basics. 3
3.1 Basic Knowledge. 3
3.2 Inline ECC.. 5
4 Hardware Design. 7
5 S32G+LPDDR4 Memory Configuration and Test Steps. 8
5.1 Configure LPDDR4 DDRC Register Settings. 9
5.2 Use the Memory Test Tool to Initialize the PHY and Generate the DDRC Configuration Uboot Sour...
5.3 Generate ddrc configuration ATF source code (starting from bsp32) 15
5.4 Memory Test 19
5.5 Other size LPDDR4 configurations. 20
6 Debug of the Fails of Test 25
7 Modify the DDRC register settings in Uboot 26
8 Modify the DDRC register settings in ATF. 26
9 Appendix. 26
9.1 A importance DDR TOOL bug Fix. 26
9.2 Uboot DDR Test Tools. 27
9.3 Kernel DDR Test Tool 28
9.4 Attached Screenshot of DDR Tool Test Items. 29
