[edk2-devel] [PATCH 1/3] Platform/RaspberryPi/Acpitables: Further lower the DMA zone

Jeremy Linton jeremy.linton at arm.com
Fri Jan 8 06:16:21 UTC 2021


We are going to add a _DMA() for the new controller, but
it won't work right with the linux driver unless we lower
the DMA zone again.

Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
---
 Platform/RaspberryPi/AcpiTables/Iort.aslc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Platform/RaspberryPi/AcpiTables/Iort.aslc b/Platform/RaspberryPi/AcpiTables/Iort.aslc
index 00720194bb..f576fa3b04 100644
--- a/Platform/RaspberryPi/AcpiTables/Iort.aslc
+++ b/Platform/RaspberryPi/AcpiTables/Iort.aslc
@@ -46,7 +46,7 @@ STATIC RPI4_IO_REMAPPING_STRUCTURE Iort = {
       0x0,                                          // AllocationHints
       0x0,                                          // Reserved
       0x0,                                          // MemoryAccessFlags
-      31,                                           // AddressSizeLimit
+      30,                                           // AddressSizeLimit
     }, {
       "\\_SB_.SCB0.XHC0"                            // ObjectName
     }
-- 
2.13.7



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