mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-29 08:00:26 +09:00
f5bd13ed57
On linux kernel side, on STM32F7 and STM32H7 SoCs, DMA requires uncachable regions. These regions are defined in DT. Since kernel linux v4.15, on ARMv7-M Cortex, kernel is able to configure MPU regions depending on DT settings. As kernel is able to configure MPU, this allows to remove MPU region settings in bootloader. On Cortex M processors, MPU allows to use a default memory map. (see B3.5.4 MPU Control Register, MPU_CTRL in https://developer.arm.com/products/architecture/m-profile/docs/ddi0403/latest/armv7-m-architecture-reference-manual) Use the default memory map as background region for all STM32 SoCs family with an additional MPU region corresponding to the SDRAM area. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> |
||
|---|---|---|
| .. | ||
| arc | ||
| arm | ||
| m68k | ||
| microblaze | ||
| mips | ||
| nds32 | ||
| nios2 | ||
| powerpc | ||
| riscv | ||
| sandbox | ||
| sh | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||