Change sata speed on bananapi-r2

#1

hello, how can i change the sata speed on a bananapi-r2.

normaly this is set in the kernel commandline, but i find no posibility to change the commandline on this system.

there are only two kernels in the boot-directory, but no config-file.

goodby

#2

Which image do you use?

Uboot in my images can be changed with uEnv.txt (bootopts)

#3

hello, this file does not exist in my system.

this is the output of uname -a: Linux bananapi-w2 4.9.119-BPI-W2-Kernel #4 SMP PREEMPT Mon Apr 29 15:13:32 CST 2019 aarch64 GNU/Linux

i have downloaded this images: 2019-06-19-raspbian-stretch-preview-bpi-w2-m4-sd-emmc.img.zip 2019-08-08-debian-10-buster-mate-desktop-preview5-tpm2-bpi-w2-m4-sd-emmc.img.zip 2019-08-02-debian-10-buster-lite-preview-aarch64-bpi-w2-m4-sd-emmc.img.zip

but i don’t remember, which is installed.

goodby

#4

You have a r2 or w2? These are completely different boards…

#5

hello, i have banana pi M1, M2, R1, R2, W2 and odroid M1, N2+ and two other models, raspberry pi 1, 2x,3x,4x with different memory configuration from 512 MB to 8 GB.

and some nas-systems with arm-cpu.

goodby

#6

You talk about different boards…

This does not match. I do not know if it is possible to change sata speed,afaik it is handled by controller and set to highest possible value.

#7

hello, my fault, the image for r2 is: 2018-03-29-ubuntu-16.04-mate-desktop-bpi-r2-sd-emmc.img.zip

goodby

#8

uname -a: Linux r2-3 5.4.58-bpi-r2-main #146 SMP Sun Aug 16 15:42:09 CEST 2020 armv7l GNU/Linux

#9

hello, it is possible to set max sata-speed at boot-time, but i have noch config-file to make that!

goodby

#10

It looks like you use my image or at least my kernel…so you can use uEnv.txt in same location as uImage to set bootargs with your parameter

#11

hello, i will test it by the next reboot of the system. this can take some time, because i am transfering terabytes of data between my systems at the moment. i use this system as temp-backup-system with a 12 TB raid.

the kernel changes the sata speed for all disks to 3 GBs after some error with 6 GB. but one link have errors with the neu 3 GB speed and i will change the cable if the disks are empty again.

goodby ans thanks

#12

hello, must i set the hole bootconfig or only the changes bootopt or all bootopts?

goodby

#13

This depends if you use my uboot or the one from bpi