Started by tgarau, October 25, 2018, 05:40:03 PM
Quote from: LubOlimex on October 25, 2018, 11:17:55 PMTry to extract it from our mainline Armbian-based images: Desktop: https://www.olimex.com/wiki/File:Armbian_5.52_Olinuxino-a20_Ubuntu_xenial_next_4.17.19_desktop.img.torrentServer: https://www.olimex.com/wiki/File:Armbian_5.52_Olinuxino-a20_Debian_stretch_next_4.17.19.img.torrent
Quote from: tgarau on November 05, 2018, 06:08:57 PMI successfully tested a downloaded Armbian image, which gave me hope in that at least the hardware can work properly.I checked in the Armbian repository and it seemed they are pointing to the linux-sunxi repositories. Therefore, I have been digging into sunxi-related kernel and u-boot sources, where I saw in different places different approaches to tune up the TX delay on the GMAC for the sun7i.I rebuilt the bootloader, setting CONFIG_GMAC_TX_DELAY=4 on a u-boot 2018.09. The result is being tested on three different boards, A20 OLinuXino LIME2 rev.G2, A20 OLinuXino LIME2 rev.K and even on the T2 OLinuXino LIME2 IND rev.K. So far, I can ping the boards, SSH into them and transfer files through scp. I did not test enough to evaluate performance, but so far it seems to be working properly.