On Tue, Nov 19, 2019 at 12:04:02PM +0100, Heiko Stuebner wrote: > From: Heiko Stuebner <heiko.stueb...@theobroma-systems.com> > > As part of loading trustedfirmware, the SPL is required to place portions > of code into the socs sram but the mmc controllers can only do dma > transfers into the regular memory, not sram. > > The results of this are not directly visible in u-boot itself, but > manifest as security-relate cpu aborts during boot of for example Linux. > > There were a number of attempts to solve this elegantly but so far > discussion is still ongoing, so to make the board at least boot correctly > put both mmc controllers into fifo-mode, which also circumvents the > issue for now. > > Signed-off-by: Heiko Stuebner <heiko.stueb...@theobroma-systems.com>
Hi, is this also needed on RK3399 based machines? I have a NanoPC-T4, where the eMMC is on the Arasan controller and the SD card on the dwmmc. So if I boot from SD card I need this as well? Patrick _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
