Hi Sascha, I think I found an issue with the CONFIG_MMU feature. When the code under barebox_pbl_start calls mmu_early_enable, the MMU is set such that only the given SRAM is defined (membase, memsize). But then, if DEBUG_LL is in use and the function pr_debug is called we get an exception because the UART address is not included in the MMU. Is that a misuse by our side or a potential issue in barebox? If this is an issue with barebox maybe the solution can be: Get putc_ctx from console.c and if not zero let mmu_early_enable set this region also (with size 0x1000) as a device type. Cheers, Lior.
