hi! Both 2020.04, 2021.01 and latest u-boot HEAD fails to setup nano pi m4 V1 LPDDR3.
these are compiled with latest ATF HEAD. Any pointers on where to debug ? For what it's worth; I can boot on nanopi m4 V2 board with patch[1], so I am sure it's a DDR thing. U-Boot TPL 2020.04 (Feb 06 2021 - 09:28:53) sdram_init: LPDDR3 - 933MHz failed! rk3399_dmc_init DRAM init failed -22 Missing DTB U-Boot TPL 2021.01 (Feb 05 2021 - 12:45:32) sdram_init: LPDDR3 - 933MHz failed! rk3399_dmc_init DRAM init failed -22 Missing DTB thanks! Chris [1]: https://patchwork.ozlabs.org/project/uboot/patch/20201018052548.29195-1-libu...@qq.com/