diff options
Diffstat (limited to 'SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S')
| -rw-r--r-- | SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S b/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S index 1975e6517..d5858630f 100644 --- a/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S +++ b/SamsungPlatformPkg/ArndaleBoardPkg/Library/ArndaleBoardLib/Exynos5250/BoardHelper.S @@ -14,6 +14,7 @@ #include <AsmMacroIoLib.h> #include <Base.h> #include <Library/PcdLib.h> +#include <Library/ArmLib.h> #include <AutoGen.h> #.include AsmMacroIoLib.inc @@ -23,6 +24,9 @@ .align 2 GCC_ASM_EXPORT(ArmGetCpuCountPerCluster) +GCC_ASM_EXPORT(ArmPlatformGetCorePosition) +GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore) +GCC_ASM_EXPORT(ArmPlatformPeiBootAction) # IN None # OUT r0 = SCU Base Address @@ -68,4 +72,25 @@ _Return: ldmfd SP!, {r1-r2} bx lr +ASM_PFX(ArmPlatformIsPrimaryCore): + #last 2 bit of mpid register in 5250 is CPU ID + ldr r1, =0x3 + and r0, r0, r1 + #id for core0 should be 0 + ldr r1, =0x0 + cmp r0, r1 + moveq r0, #1 + movne r0, #0 + mov pc, lr + +ASM_PFX(ArmPlatformGetCorePosition): + and r1, r0, #0x03 //cpu core mask last 2 bits + and r0, r0, #(0x0f<<8) //cpu cluster mask bit 8-11 + add r0, r1, r0, LSR #7 + mov pc, lr + + +ASM_PFX(ArmPlatformPeiBootAction): + mov pc, lr + ASM_FUNCTION_REMOVE_IF_UNREFERENCED |