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6 Commits

Author SHA1 Message Date
Ard Biesheuvel 1344c8c605 ArmPlatformPkg/FVP: map motherboard VRAM as uncached memory 
The VRAM of the PL111 on the FVP Base/Foundation models is described as
device memory rather than uncached memory, which is not an accurate
description of the nature of the region (i.e., a framebuffer), and may
result in problems when using accelerated string routines to access the
region, since this may legally involve unaligned accesses or DC ZVA
instructions, which are not allowed on device mappings.

So split of the 8 MB VRAM region into a separate region, and map it using
memory attributes.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
 2017-04-06 21:31:48 +01:00
Olivier Martin c357fd6a1f ArmPkg/ArmPkg.dec: Redefined PcdSystemMemory(Base|Size) as UINT64 
The System Memory region might be out of the 32-bit memory space.

This change has been validated on the FVP AArch64 model using 4GB
of DRAM at 0x8_0000_0000:

-  # System Memory (2GB)
-  gArmTokenSpaceGuid.PcdSystemMemoryBase|0x80000000
-  gArmTokenSpaceGuid.PcdSystemMemorySize|0x80000000
+  # System Memory (4GB)
+  gArmTokenSpaceGuid.PcdSystemMemoryBase|0x800000000
+  gArmTokenSpaceGuid.PcdSystemMemorySize|0x100000000

EFI Shell and Linux kernel boot successfully.

Note: This change has not been validated on AArch32. I expect some
early assembly code to not work.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>




git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15093 6f19259b-4bc3-4df7-8a09-765794883524
 2014-01-10 11:27:31 +00:00
oliviermartin c20d62b5d2 ArmPlatformPkg: Coding style changes (tab and line endings) - Minor changes 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12828 6f19259b-4bc3-4df7-8a09-765794883524
 2011-12-07 17:16:03 +00:00
oliviermartin a79803d7f9 ArmPlatformPkg/ArmVExpressPkg: Do not declare SCC base for the RTSM VE Model 
The System Control Configuration registers are not implemented on the Model



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12624 6f19259b-4bc3-4df7-8a09-765794883524
 2011-11-01 23:28:27 +00:00
oliviermartin 886f97c86b ARM Packages: Fixed Build failings/warnings/EDK2 coding convention 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12458 6f19259b-4bc3-4df7-8a09-765794883524
 2011-09-27 16:42:47 +00:00
oliviermartin 1ddb209e0e ArmPlatformPkg/ArmVExpressPkg: Add support for ARM Versatile Express A9x4 Model 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12429 6f19259b-4bc3-4df7-8a09-765794883524
 2011-09-22 23:22:31 +00:00