On Wed, Feb 28, 2018 at 05:15:00PM +0100, [email protected] wrote: > From: Patrice Chotard <[email protected]> > > 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 <[email protected]>
Applied to u-boot/master, thanks! -- Tom
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