Reserve ecam v express #730
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Add a RES0 device to the SSDT to reserve the PCI ECAM area. This fixes the firmware bug reported by Linux: acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0x40000000-0x4fffffff] not reserved in ACPI namespace With this change, the above message is replaced with: acpi PNP0A08:00: ECAM area [mem 0x40000000-0x4fffffff] reserved by PNP0C02:00 This patch is based on commit 1e5be97 ("Platform/ARM/JunoPkg: Reserve the ECAM area in ACPI with RES0 device") REF:https://developer.arm.com/documentation/100964/1127/Base-Platform/ Base-Platform-memory/Base-Platform-memory-map?lang=en Signed-off-by: Varshit Pandya <[email protected]>
Since Juno and VExpress are using the same PCDs using a common name for both the platforms. Signed-off-by: Varshit Pandya <[email protected]>
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@samimujawar can you please take a look at this PR ? |
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Platform/Arm/VExpressPkg: Reserve the ECAM area in ACPI with RES0 device
Add a RES0 device to the SSDT to reserve the PCI ECAM area.This fixes the firmware bug reported by Linux:
acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0x40000000-0x4fffffff]not reserved in ACPI namespaceWith this change, the above message is replaced with:
acpi PNP0A08:00: ECAM area [mem 0x40000000-0x4fffffff] reserved by PNP0C02:00This patch is based on commit 1e5be97 ("Platform/ARM/JunoPkg:Reserve the ECAM area in ACPI with RES0 device")
REF:https://developer.arm.com/documentation/100964/1127/Base-Platform/Base-Platform-memory/Base-Platform-memory-map?lang=en
Also use same PCD for Juno and VExpress.