diff mbox series

[edk2,edk2-platforms,v2,15/18] Hisilicon/D06: Fix USB crash issue(4079)

Message ID 20190220072837.35058-16-ming.huang@linaro.org
State Superseded
Headers show
Series Fix issues and improve D0x | expand

Commit Message

Ming Huang Feb. 20, 2019, 7:28 a.m. UTC 
Last patch "Modify IORT" change revision id of node type 2 to 1,
and 4.19 later kernel will judge the revision id to get root pci
bridge DMA informations from IORT. As Hi1620 USB 2.0 don't support
64 bit DMA, but the DMA attribute get from IORT node type 2 is 64
bit. So add _DMA method in USB pci bridge 3 and pci bridge 8 to
fix usb crash when usb device is present issue.

https://bugs.linaro.org/show_bug.cgi?id=4079

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ming Huang <ming.huang@linaro.org>

---
 Silicon/Hisilicon/Hi1620/Hi1620AcpiTables/Dsdt/Hi1620Pci.asl | 46 ++++++++++++++++++++
 1 file changed, 46 insertions(+)

-- 
2.9.5

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diff mbox series

Patch

diff --git a/Silicon/Hisilicon/Hi1620/Hi1620AcpiTables/Dsdt/Hi1620Pci.asl b/Silicon/Hisilicon/Hi1620/Hi1620AcpiTables/Dsdt/Hi1620Pci.asl
index 6dc380f27fa2..c1083dc16a2a 100644
--- a/Silicon/Hisilicon/Hi1620/Hi1620AcpiTables/Dsdt/Hi1620Pci.asl
+++ b/Silicon/Hisilicon/Hi1620/Hi1620AcpiTables/Dsdt/Hi1620Pci.asl
@@ -375,6 +375,29 @@  Device (PCI2)
 
   PCI_OSC_SUPPORT ()
 
+  Method(_DMA, 0, Serialized)
+  {
+    Return (ResourceTemplate()
+    {
+      QWORDMemory(
+      ResourceConsumer,
+      PosDecode,          // _DEC
+      MinFixed,           // _MIF
+      MaxFixed,           // _MAF
+      Prefetchable,       // _MEM
+      ReadWrite,          // _RW
+      0,                  // _GRA
+      0x00000000,         // _MIN
+      0xFFFFFFFF,         // _MAX
+      0x00000000,        // _TRA
+      0x100000000,         // _LEN
+      ,
+      ,
+      ,
+      )
+    })
+  }
+
   Method (_STA, 0x0, NotSerialized)
   {
     Return (0xf)
@@ -1077,6 +1100,29 @@  Device (PCI8)
     Return (0xf)
   }
 
+  Method(_DMA, 0, Serialized)
+  {
+    Return (ResourceTemplate()
+    {
+      QWORDMemory(
+      ResourceConsumer,
+      PosDecode,          // _DEC
+      MinFixed,           // _MIF
+      MaxFixed,           // _MAF
+      Prefetchable,       // _MEM
+      ReadWrite,          // _RW
+      0,                  // _GRA
+      0x00000000,         // _MIN
+      0xFFFFFFFF,         // _MAX
+      0x00000000,        // _TRA
+      0x100000000,         // _LEN
+      ,
+      ,
+      ,
+      )
+    })
+  }
+
   Method (_PXM, 0, NotSerialized)
   {
     Return(0x02)