Peter Hoyes 2f5b7b7490 armv8: Add ARMv8 MPU configuration logic ... Armv8r64 is the first Armv8 platform that only has a PMSA at the current exception level. The architecture supplement for Armv8r64 describes new fields in ID_AA64MMFR0_EL1 which can be used to detect whether a VMSA or PMSA is present. These fields are RES0 on Armv8a. Add logic to read these fields and, for the protection of the memory used by U-Boot, initialize the MPU instead of the MMU during init, then clear the MPU regions before transition to the next stage. Provide a default (blank) MPU memory map, which can be overridden by board configurations. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>		2021-09-02 10:17:45 -04:00
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asm	armv8: Add ARMv8 MPU configuration logic	2021-09-02 10:17:45 -04:00
debug	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00