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Adapt A15 KnownCPUFlags to account for LDREX and friends
Robert Sprowson authored 
When SyncLib-0_04 is used in conjunction with SDIODriver, the exclusive access instructions (instead of SWP) abort when the cache is off, causing the machine to hang if *Cache Off is used.
See A15 TRM section 6.4.5 for the logic.
Copy the A53's known CPU flags to prevent the D cache being turned off.

Version 5.97. Tagged as 'Kernel-5_97'
5bc10832
Name Last commit Last update
..
AMBControl Implement support for cacheable pagetables
PMF Recover gracefully from a completely blank set of CMOS
vdu Fix some pointer colour issues. Fix PaletteV 6 (blank screen) return value.
ARM600 Implement support for cacheable pagetables
ARMops Adapt A15 KnownCPUFlags to account for LDREX and friends
Arthur2 Fix incorrect OS_SynchroniseCodeAreas call
Arthur3 Recover gracefully from a completely blank set of CMOS
ArthurSWIs Reimplement AMBControl ontop of the PMP system
CPUFeatures Revise comments - it's multiprocessing extensions, not virtualisation
ChangeDyn Fix inverted global vs. per-page cache flush logic in PMP LogOp_MapOut
Convrsions Add UUID output formatter to conversions
Exceptions Implement support for cacheable pagetables
ExtraSWIs Reimplement AMBControl ontop of the PMP system
GetAll Change module initialisation to be a two pass scheme
HAL Change module initialisation to be a two pass scheme
HeapMan Delete lots of old switches
HeapSort Avoid unnecesssary remainder calculations
Kernel Expose CLREX via OS_PlatformFeatures
LibKern More HAL work. IOMD HAL work in progress. Lots of my own little build scripts. Don't touch this.
MOSDict Import from cleaned 360 CD
MemInfo Tweak handling of zero page compatibility page
MemMap2 Implement support for cacheable pagetables
Middle Fix to OS_ReadSysInfo 1
ModHand Unplug/RMInsert with podule module fix
MoreComms Resolve 2x header clashes
MoreSWIs
MsgCode
NewIRQs
NewReset
Oscli
SWINaming
Super1
SysComms
TickEvents
UnSqueeze
Utility
VMSAv6