** Description changed: https://github.com/smaeul/sun20i_d1_spl/commits/d1-2022-01-22, commit 525883d3721f4c4d78b498e780b44e85d0676abf contains patches to detect the RAM size automatically. + + [Impact] + + If the memory is not discovered automatically, the Nezha can't boot + without an additional memory node in the device tree: the issue is that + the Nezha boards comes now with 2 different amounts of memory, 1GB or + 2GB. So the additional device tree node can't cover both boards. + + It is essential to backport this fix to Jammy as we intend to provide + first support for the Nezha board in 22.04.1. + + [Test Plan] + + To test the fix is correct, one can simply use this nezha-boot0 and + check that the next stage bootloader (u-boot-nezha) advertises the right + amount of memory for the board, which is displayed at boot right after + the banner: + + U-Boot 2022.04 (Apr 21 2022 - 09:19:39 +0000) + + DRAM: 1 GiB + sunxi_set_gate: (CLK#24) unhandled + + [Where problems could occur] + + The update will not introduce regressions as this package is *not* used + since we did not deliver images for the Nezha board yet, support for + this board is an additional feature scheduled for 22.04.1. + + [Other Info] + + Note that this only fixes the memory detection from boot0 to u-boot, + another similar patch is needed for u-boot-nezha to patch the kernel + device tree.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965260 Title: FFE: Detect RAM size automatically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nezha-boot0/+bug/1965260/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
