想编一个F133的SPL出来，代码基于github上的： https://github.com/smaeul/sun20i_d1_spl
但是找到的是基于D1的SPL，目前发现是死在了初始化DRAM的过程中。运行日志如下：
[158]HELLO! BOOT0 is starting!
[160]BOOT0 commit : 771192d
[163]set pll start
[165]periph0 has been enabled
[168]set pll end
[169]board init ok
[171]DRAM only have internal ZQ!!
[174]get_pmu_exist() = -1
[177]ddr_efuse_type: 0xa
[180]ZQ calibration error,check external 240 ohm resistor.
[185][ERROR DEBUG] auto scan dram rank&width fail !发现代码中有一段初始化DRAM的参数，这里不知道F133应该对应什么参数。
希望大佬告知一下。
D1的初始化DRAM的参数如下：
{
0x00000318,
0x00000003,
0x007b7bfb,
0x00000001,
0x000010d2,
0x00000000,
0x00001c70,
0x00000042,
0x00000018,
0x00000000,
0x004a2195,
0x02423190,
0x0008b061,
0xb4787896,
0x00000000,
0x48484848,
0x00000048,
0x1620121e,
0x00000000,
0x00000000,
0x00000000,
0x00870000,
0x00000024,
0x34050100,
},最近编辑记录 geniugogo (2021-11-08 11:21:12)
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这种问题去看xfel的源码
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xboot的参数牛逼
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Similar information request. Working on a SPL for F133. BUT as a Windows Eclipse xpack GNU risc-v project.
Have a lot working but trying to do simple DRAM init.
Have researched D1 mainline SPL, xboot, and xfel github source code. Almost got it by grabbing mctl_hal.s from xfel. But this environment chokes on the assembler code. I think it has T-head extensions in it (lrbu for one).
mctl_hal.s appears to be compiler generated code. Do xboot/xfel authors have access to mctl_hal.c? I found an old one from 2014 on github but doubt if it will play we'll.
Assistance or guidance much appreciated.
Thanx,
Ed
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mctl_hal.S copyed from tina-d1 source code, and modify some depend functions
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Thanx for quick reply. I'll continue research and advise of any solution.
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