Hi Miquel, hi Maxime, could you probably run a test on a newer Allwinner SOC - like e.g. SUNI8, SUNI9, SUNI50 or newer, since I can test it on a SUNI7 (A20) board only?
The only aspect that makes me wonder is, that it did work on your hardware before at all. Maybe this is, since that NFC_CTL_RAM_METHOD flag does not matter on newer SOC, if the DMA channel is not enabled for the NFC. Markus Am Do., 30. Juni 2022 um 09:31 Uhr schrieb Maxime Ripard <max...@cerno.tech>: > > On Thu, Jun 30, 2022 at 09:13:22AM +0200, Miquel Raynal wrote: > > Hi Markus, > > > > + Maxime, for the record :) > > > > mhoffro...@gmail.com wrote on Thu, 30 Jun 2022 01:26:39 +0200: > > > > > The sunxi nand SPL loader was broken at least for SUN4I, > > > SUN5I and SUN7I SOCs since the implementation change > > > from DMA to PIO usage - commit 6ddbb1e. > > > > > > Root cause for this issue is the NFC control flag NFC_CTL_RAM_METHOD > > > being set by method nand_apply_config. > > > > > > This flag controls the bus being used for the NFCs internal RAM access. > > > It must be set for the DMA use case only. > > > See A33_Nand_Flash_Controller_Specification.pdf page 12. > > > > > > This fix is tested by myself on a Cubietruck A20 board. > > > Others should test it on new generation SOCs as well. > > > > Good to know that someone tackled this, Maxime already reported some > > time ago that it was broken for a number of boards but I never took the > > time to investigate, apologies. > > Oh, that's awesome, thanks for tackling this :) > > Maxime
