Hi Fabio On Sat, May 17, 2025 at 9:56 PM Fabio Estevam <feste...@gmail.com> wrote: > > Hi Michael, > > On Thu, May 15, 2025 at 5:12 PM Michael Nazzareno Trimarchi > <mich...@amarulasolutions.com> wrote: > > > The serial is not up at that time so we need to buffer the error and print > > later. Right now > > we are working on other fixes > > Please share more details about the boot problem on the imx8mn_bsh_smm_s2 > board. > > Does a hang occur at SPL? Do you get anything in the console? > > The mx8mn_bsh_smm_s2 board uses UART4 as the console. > > The other i.MX8MN boards where we tested this patch used UART2. >
Can you please point me to an example of a tested board? > UART4 does not have U-Boot/Linux permission by default. > TF-A is not in the game, the board is working fine. > TF-A enables the other UART port permission access at: > https://github.com/ARM-software/arm-trusted-firmware/blob/v2.12/plat/imx/imx8m/imx8mn/imx8mn_bl31_setup.c#L124-L143 I think we have upstream the fix there. Anyway... > > Is the UART clock access falling in your case? > If the uart is failing you don't have the console > Is clk_enable_bulk() the one that fails? I think that something connected to -u-boot.dtsi if you have tested with some imx8mn Michael -- Michael Nazzareno Trimarchi Co-Founder & Chief Executive Officer M. +39 347 913 2170 mich...@amarulasolutions.com __________________________________ Amarula Solutions BV Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172 i...@amarulasolutions.com www.amarulasolutions.com
