[edk2-devel] [edk2-platforms][PATCH 16/30] RiscVPlatformPkg/U540: Only use four harts on U540

[Abner Chang]

Only use four harts on U540 reference code. This
overwrites the bootable harts declared in Device Tree.

Cc: Sunil V L <sunilvl at ventanamicro.com>
Cc: Daniel Schaefer <daniel.schaefer at hpe.com>

Signed-off-by: Abner Chang <abner.chang at hpe.com>
---
 .../FreedomU540HiFiveUnleashedBoard/U540.fdf.inc    | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf.inc b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf.inc
index f708f4d8be..1a525dc874 100644
--- a/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf.inc
+++ b/Platform/SiFive/U5SeriesPkg/FreedomU540HiFiveUnleashedBoard/U540.fdf.inc
@@ -92,9 +92,16 @@ SET gUefiRiscVPkgTokenSpaceGuid.PcdRiscVMachineTimerFrequencyInHerz    = 1000000
 SET gSiFiveU5SeriesPlatformsPkgTokenSpaceGuid.PcdU5PlatformSystemClock = 1000000000 # 1GHz system clock
 SET gUefiRiscVPlatformPkgTokenSpaceGuid.PcdHartCount                   = 5          # Total cores on U540 platform
 SET gUefiRiscVPlatformPkgTokenSpaceGuid.PcdBootHartId                  = 1          # Boot hart ID
-SET gUefiRiscVPlatformPkgTokenSpaceGuid.PcdBootableHartNumber          = 4          # The bootable hart core number.
-                                                                                    # Which is incorporate with OpenSBI
-                                                                                    # platform hart_index2id value.
+
+#
+# The bootable hart number the platform would like to use during boot.
+#
+SET gUefiRiscVPlatformPkgTokenSpaceGuid.PcdBootableHartNumber          = 4
+#
+# Only use hart ID 1, 2, 3, 4
+#
+SET gUefiRiscVPlatformPkgTokenSpaceGuid.PcdBootableHartIndexToId       = {0x1,0x2,0x3,0x4}
+                                                                                    # during boot
 SET gSiFiveU5SeriesPlatformsPkgTokenSpaceGuid.PcdNumberofU5Cores       = 4          # Total U5 cores enabled on U540 platform
 SET gSiFiveU5SeriesPlatformsPkgTokenSpaceGuid.PcdE5MCSupported         = True       # E51 MC exists.
 SET gSiFiveU5SeriesPlatformsPkgTokenSpaceGuid.PcdU5UartBase            = 0x10010000 # Serial port base address
-- 
2.31.1



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