audk/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibCTA9x4
Bhupesh Sharma 465663e9f1 ArmPlatformPkg/TZASC: Allow specifying subregions to be disabled
ARM TZASC-380 IP provides a mechanism to split memory regions being
protected via it into eight equal-sized sub-regions. A bit-setting
allows the corresponding subregion to be disabled.

Several NXP/FSL SoCs support the TZASC-380 IP block and allow
the DDR connected via the TZASC to be partitioned into regions
having different security settings and also allow subregions
to be disabled.

This patch enables this support and can be used for SoCs which
support such a partition of DDR regions.

Details of the 'subregion_disable' register can be viewed here:
http://infocenter.arm.com/help/topic/com.arm.doc.ddi0431c/CHDIGDCI.html

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@nxp.com>
[bhupesh.linux@gmail.com : Added gmail ID as NXP one is no longer valid]
Signed-off-by: Bhupesh Sharma <bhupesh.linux@gmail.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-01-26 14:31:37 +00:00
..
ArmVExpressSecLib.inf ARM Packages: Removed unused PcdArmPrimaryCore 2014-09-01 17:41:38 +00:00
CTA9x4Boot.S ArmPlatformPkg/ArmVExpressPkg: switch to ASM_FUNC() asm macro 2016-08-11 13:25:05 +02:00
CTA9x4Boot.asm ArmPlatformPkg RVCT: drop dependency on GCC macro library 2016-08-11 12:29:31 +02:00
CTA9x4Sec.c ArmPlatformPkg/TZASC: Allow specifying subregions to be disabled 2017-01-26 14:31:37 +00:00