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ArmPlatformPkg: Fix and Implement ArmPlatformGetPrimaryCoreMpId

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- Used correct PCD
- Implement the function for AArch64, BeagleBoard, CTA15A7

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@14937 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
2013-12-06 16:11:34 +00:00
committed by oliviermartin
parent d5ad0813ac
commit 99267097f3
11 changed files with 86 additions and 6 deletions
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21
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA15-A7/CTA15-A7Helper.S
View File

@@ -22,6 +22,7 @@
GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
ASM_PFX(ArmPlatformPeiBootAction):
bx lr
@@ -66,3 +67,23 @@ ASM_PFX(ArmPlatformIsPrimaryCore):
movne r0, #0
bx lr
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
// Extract cpu_id and cluster_id from ARM_SCC_CFGREG48
// with cpu_id[0:3] and cluster_id[4:7]
LoadConstantToReg (ARM_CTA15A7_SCC_CFGREG48, r0)
ldr r0, [r0]
lsr r0, #24
// Shift the SCC value to get the cluster ID at the offset #8
lsl r1, r0, #4
and r1, r1, #0xF00
// Keep only the cpu ID from the original SCC
and r0, r0, #0x0F
// Add the Cluster ID to the Cpu ID
orr r0, r0, r1
bx lr

23
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA15-A7/CTA15-A7Helper.asm
View File

@@ -21,6 +21,7 @@
EXPORT ArmPlatformPeiBootAction
EXPORT ArmPlatformGetCorePosition
EXPORT ArmPlatformIsPrimaryCore
EXPORT ArmPlatformGetPrimaryCoreMpId
PRESERVE8
AREA CTA15A7Helper, CODE, READONLY
@@ -71,4 +72,26 @@ ArmPlatformIsPrimaryCore FUNCTION
bx lr
ENDFUNC
//UINTN
//ArmPlatformGetPrimaryCoreMpId (
// VOID
// );
ArmPlatformGetPrimaryCoreMpId FUNCTION
// Extract cpu_id and cluster_id from ARM_SCC_CFGREG48
// with cpu_id[0:3] and cluster_id[4:7]
LoadConstantToReg (ARM_CTA15A7_SCC_CFGREG48, r0)
ldr r0, [r0]
lsr r0, #24
// Shift the SCC value to get the cluster ID at the offset #8
lsl r1, r0, #4
and r1, r1, #0xF00
// Keep only the cpu ID from the original SCC
and r0, r0, #0x0F
// Add the Cluster ID to the Cpu ID
orr r0, r0, r1
bx lr
ENDFUNC
END