Hi Anshul, Apologies for not looking at this earlier.
I'll have a look within the week. Regards /Ilias On Mon, 6 Oct 2025 at 11:29, Anshul Dalal <[email protected]> wrote: > > Hi all, > > In U-Boot, TI only provides a single memory map for all k3 platforms, this > does not scale for devices where atf and optee lie outside the range > 0x80000000 > - 0x80080000 and 0x9e780000 - 0xa0000000 respectively. > > There are also issues for devices with < 2GiB of memory (eg am62SiP with > 512MiB > of RAM) as the maximum size for the first DRAM bank is hardcoded to 2GiB in > the > current memory map. Furthermore the second DRAM bank is mapped even for > devices > that only have a single bank. > > Therefore this patch set adds the required functionality to create the MMU > table > at runtime based on the device-tree. > > The patch set has been build tested on all effected platforms but boot-tested > only on TI's K3 EVMs, the beagleplay and phytec's phycore-am6* platforms. > > The following effected boards have not been boot tested: > - verdin-am62 > - iot2050 > > Best Wishes, > Anshul > --- > Changes in v8: > - Reserve extra space for page table entries for performing fixups > v7: https://lore.kernel.org/u-boot/[email protected]/ > > Changes in v7: > - Pick up R-by and Tested-by tags > - Use nobreak API for unmapping MMU region > - Better error messages and minor refactor > v6: https://lore.kernel.org/u-boot/[email protected]/ > > Changes in v6: > - Make use of generic MMU APIs > - Extend core U-Boot functionality by adding mmu_unmap_reserved_mem and > mem_map_fix_dram_banks > - Keep same memory maps for SPL and U-Boot proper > - Add fdt fixups from SPL stage for reserved memory nodes > v5: https://lore.kernel.org/u-boot/[email protected]/ > > Changes in v5: > - Don't create carveouts for every reserved-memory node > - Only create carveouts for ATF/OP-TEE > - Expand the call to k3_mem_map_init to vendor boards as well > - Map area for framebuffer for CONFIG_VIDEO=y platforms > v4: https://lore.kernel.org/u-boot/[email protected]/ > > Changes for v4: > - Add call to k3_mem_map_init for beagleplay > - Mark reserved regions as non-cacheable > - More debug logs > v3: https://lore.kernel.org/u-boot/[email protected]/ > > Changes for v3: > - Remove unused memory regions in SPL's map > - Add runtime addition of MMU entry for the framebuffer in SPL > - Refactor k3_mem_map_init to use standard u-boot APIs > - Unmap reserved-memory regions instead of keeping them uncached > v2: https://lore.kernel.org/u-boot/[email protected]/ > > Changes in v2: > - Removed dependency to: > https://lore.kernel.org/u-boot/[email protected]/ > v1: https://lore.kernel.org/u-boot/[email protected]/ > --- > > Anshul Dalal (11): > mach-k3: use minimal memory map for all K3 > mach-k3: use custom enable_cache > arm: armv8: mmu: export mmu_setup > arm: armv8: invalidate dcache entries on dcache_enable > arm: armv8: mmu: add mem_map_fix_dram_banks > mach-k3: map all banks using mem_map_fix_dram_banks > arm: armv8: mmu: add mmu_unmap_reserved_mem > spl: split spl_board_fixups to arch/board specific > mach-k3: add reserved memory fixups for next boot stage > mach-k3: add carveouts for TFA and optee > arm: mach-k3: reserve space for page table entries > > arch/arm/cpu/armv7m/cpu.c | 2 +- > arch/arm/cpu/armv8/cache_v8.c | 58 ++++++++++++++++++++-- > arch/arm/include/asm/armv8/mmu.h | 24 +++++++++ > arch/arm/mach-k3/arm64/arm64-mmu.c | 40 +++++++-------- > arch/arm/mach-k3/common.c | 55 ++++++++++++++++++++ > arch/arm/mach-k3/include/mach/k3-ddr.h | 6 +++ > arch/arm/mach-rockchip/spl-boot-order.c | 2 +- > arch/arm/mach-socfpga/spl_soc64.c | 2 +- > board/beagle/beagley-ai/beagley-ai.c | 2 +- > board/dhelectronics/dh_stm32mp1/board.c | 2 +- > board/phytec/phycore_am62x/phycore-am62x.c | 2 +- > board/phytec/phycore_am64x/phycore-am64x.c | 2 +- > board/renesas/sparrowhawk/sparrowhawk.c | 2 +- > board/starfive/visionfive2/spl.c | 2 +- > board/ti/am62ax/evm.c | 2 +- > board/ti/am62px/evm.c | 2 +- > board/ti/am62x/evm.c | 2 +- > board/ti/am64x/evm.c | 2 +- > board/ti/j721e/evm.c | 2 +- > board/ti/j721s2/evm.c | 2 +- > board/ti/j722s/evm.c | 2 +- > board/ti/j784s4/evm.c | 2 +- > common/spl/spl.c | 12 +++-- > include/spl.h | 12 +++-- > 24 files changed, 191 insertions(+), 50 deletions(-) > > -- > 2.51.0 >
