The 'system-id' node of HW_CONFIG device tree has been updated to have
a new property 'multi-chip-mode' which holds the information about the
multi-chip-mode support. To adapt to this change, add 'MultiChipMode'
member to SGI_PLATFORM_DESCRIPTOR structure to get 'multi-chip-mode'
property from fdt.
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subraman...@arm.com>
---
Platform/ARM/SgiPkg/Include/SgiPlatform.h | 4 ++++
Platform/ARM/SgiPkg/Drivers/PlatformDxe/PlatformDxe.c | 9 +++++++--
Platform/ARM/SgiPkg/Library/SgiPlatformPei/SgiPlatformPeim.c | 8 ++++++++
3 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/Platform/ARM/SgiPkg/Include/SgiPlatform.h
b/Platform/ARM/SgiPkg/Include/SgiPlatform.h
index e4a2e8cc0971..7c9322d1cda9 100644
--- a/Platform/ARM/SgiPkg/Include/SgiPlatform.h
+++ b/Platform/ARM/SgiPkg/Include/SgiPlatform.h
@@ -79,10 +79,14 @@
#define SGI_CONFIG_SHIFT 0x1C
#define SGI_PART_NUM_MASK 0xFFF
+#define MULTI_CHIP_MODE_DISABLED 0x0
+#define MULTI_CHIP_MODE_ENABLED 0x1
+
// ARM platform description data.
typedef struct {
UINTN PlatformId;
UINTN ConfigId;
+ UINTN MultiChipMode;
} SGI_PLATFORM_DESCRIPTOR;
#endif // __SGI_PLATFORM_H__
diff --git a/Platform/ARM/SgiPkg/Drivers/PlatformDxe/PlatformDxe.c
b/Platform/ARM/SgiPkg/Drivers/PlatformDxe/PlatformDxe.c
index 4ab0dd768cd1..d988a23b8093 100644
--- a/Platform/ARM/SgiPkg/Drivers/PlatformDxe/PlatformDxe.c
+++ b/Platform/ARM/SgiPkg/Drivers/PlatformDxe/PlatformDxe.c
@@ -17,10 +17,10 @@ typedef struct {
} SGI_PLATFORM_ACPI_TABLE_GUID_LOOKUP;
// Macro to construct the SGI_PLATFORM_ACPI_TABLE_GUID_LOOKUP structure
-#define ACPI_GUID_LOOKUP(PART_NUM, CONFIG_NUM, GUID)
\
+#define ACPI_GUID_LOOKUP(PART_NUM, CONFIG_NUM, MULTI_CHIP_MODE, GUID)
\
{
\
{
\
- PART_NUM, CONFIG_NUM
\
+ PART_NUM, CONFIG_NUM, MULTI_CHIP_MODE
\
},
\
GUID
\
}
\
@@ -29,14 +29,17 @@ STATIC SGI_PLATFORM_ACPI_TABLE_GUID_LOOKUP
AcpiTableGuidLookup[] = {
ACPI_GUID_LOOKUP (
SGI575_PART_NUM,
SGI575_CONF_NUM,
+ MULTI_CHIP_MODE_DISABLED,
&gSgi575AcpiTablesFileGuid),
ACPI_GUID_LOOKUP (
RD_N1E1_EDGE_PART_NUM,
RD_N1_EDGE_CONF_ID,
+ MULTI_CHIP_MODE_DISABLED,
&gRdN1EdgeAcpiTablesFileGuid),
ACPI_GUID_LOOKUP (
RD_N1E1_EDGE_PART_NUM,
RD_E1_EDGE_CONF_ID,
+ MULTI_CHIP_MODE_DISABLED,
&gRdE1EdgeAcpiTablesFileGuid),
};
@@ -58,6 +61,7 @@ ArmSgiPkgEntryPoint (
UINT8 i;
UINT32 ConfigId;
UINT32 PartNum;
+ UINT32 MultiChipMode;
SystemIdHob = GetFirstGuidHob (&gArmSgiPlatformIdDescriptorGuid);
if (SystemIdHob == NULL) {
@@ -69,6 +73,7 @@ ArmSgiPkgEntryPoint (
PartNum = HobData->PlatformId;
ConfigId = HobData->ConfigId;
+ MultiChipMode = HobData->MultiChipMode;
Status = EFI_UNSUPPORTED;
diff --git a/Platform/ARM/SgiPkg/Library/SgiPlatformPei/SgiPlatformPeim.c
b/Platform/ARM/SgiPkg/Library/SgiPlatformPei/SgiPlatformPeim.c
index 4daa1832dfaf..7df52cc4fd7c 100644
--- a/Platform/ARM/SgiPkg/Library/SgiPlatformPei/SgiPlatformPeim.c
+++ b/Platform/ARM/SgiPkg/Library/SgiPlatformPei/SgiPlatformPeim.c
@@ -75,6 +75,14 @@ GetSgiSystemId (
HobData->ConfigId = fdt32_to_cpu (*Property);
+ Property = fdt_getprop (NtFwCfgDtBlob, Offset, "multi-chip-mode", NULL);
+ if (Property == NULL) {
+ DEBUG ((DEBUG_WARN, "multi-chip-mode property not found\n"));
+ HobData->MultiChipMode = 0;
+ } else {
+ HobData->MultiChipMode = fdt32_to_cpu (*Property);
+ }
+
return EFI_SUCCESS;
}
--
2.7.4
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