SDR104 on ayufan 0.7.7+
#1
Wink 
Hello everyone!
After some lurking, I resolved to step into the fray Big Grin 

So, I have a shiny new Rock64 board, running latest linux ayufan minimal build (0.7.9).

My OS is on microSD, a Sandisk Ultra A1 16GB (92 MB/s tested with another Linux box).

I've noticed SD speed is quite low on Rock64 (about 21 MB/s in my case), because of DDR50 mode only (no SDR104).

But... in his 0.7.7 release notice, auyfan himself says he enabled SDR104 in Rock64 kernel: 
https://github.com/ayufan-rock64/linux-b.../tag/0.7.9 (search for "SDR104")
(I know Rock64 hardware does not support SD 1.8v signaling. I suppose he did a similar trick used on Raspberry PI: force the clock to 100MHz even if signaling is 3.3v instead of 1.8v. It works flawlessy on RPIs, I have 4).

I upgraded the kernel and the u-boot to the latest, as per instructions.

Now, what should I do to enable SDR104? Some obscure file/config/whatever to edit?

Thanks! Let's Rock this SD Big Grin


Possibly Related Threads…
Thread Author Replies Views Last Post
  Are you guys still using Ayufan's OMV on your Rock64? AkiraSensei 0 62 11-26-2021, 07:01 PM
Last Post: AkiraSensei
  Ayufan apt repository? ab1jx 2 1,848 11-23-2019, 10:08 PM
Last Post: ab1jx
  How to compile ayufan repo step by step? hisstone 0 1,038 03-12-2019, 03:09 AM
Last Post: hisstone
  Reboot Issue with ROCK64 Linux version 4.4.77-rockchip-ayufan-141 techyjtmb 9 4,935 06-23-2018, 09:52 AM
Last Post: NablaMetal
  AOSP Build Steps Using github.com/ayufan-rock64/android-7.1 birender.s 15 12,263 05-09-2018, 01:20 AM
Last Post: burram
  Some questions about r64 and ayufan android tv Synthetikz 1 1,609 03-13-2018, 03:28 PM
Last Post: Luke

Forum Jump:


Users browsing this thread: 1 Guest(s)