Support for PCI IO range with ACPI on JUNO.
Interrupt Number Reference: 
http://www.arm.com/files/pdf/DDI0515D1a_juno_arm_development_platform_soc_trm.pdf
 table 3-3 page 3-7

Contributed-under: TianoCore Contribution Agreement 1.0

Signed-off-by: Supreeth Venkatesh <supreeth.venkat...@arm.com>
---
 .../ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl      | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl 
b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
index c6d5a9a..7fc7f1e 100644
--- a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
+++ b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
@@ -59,10 +59,10 @@ DefinitionBlock("SsdtPci.aml", "SSDT", 1, "ARMLTD", 
"ARM-JUNO", EFI_ACPI_ARM_OEM
 
         // PCI Routing Table
                Name(_PRT, Package() {
-               ROOT_PRT_ENTRY(0, 136),   // INTA
-               ROOT_PRT_ENTRY(1, 137),   // INTB
-               ROOT_PRT_ENTRY(2, 138),   // INTC
-               ROOT_PRT_ENTRY(3, 139),   // INTD
+               ROOT_PRT_ENTRY(0, 168),   // INTA
+               ROOT_PRT_ENTRY(1, 169),   // INTB
+               ROOT_PRT_ENTRY(2, 170),   // INTC
+               ROOT_PRT_ENTRY(3, 171),   // INTD
        })
         // Root complex resources
                Method (_CRS, 0, Serialized) {
@@ -98,6 +98,20 @@ DefinitionBlock("SsdtPci.aml", "SSDT", 1, "ARMLTD", 
"ARM-JUNO", EFI_ACPI_ARM_OEM
                                        0x00000000,                             
                        // Translate
                                        0x100000000                             
                                // Length
                                )
+
+                               DWordIo ( // IO window
+                                       ResourceProducer,
+                                       MinFixed,
+                                       MaxFixed,
+                                       PosDecode,
+                                       EntireRange,
+                                       0x00000000,                             
                        // Granularity
+                                       0x5f800000,                             
                        // Min Base Address
+                                       0x5fffffff,                             
                        // Max Base Address
+                                       0x5f800000,                             
                        // Translate
+                                       0x00800000                              
                                // Length
+                               )
+
                        }) // Name(RBUF)
                        
                        Return (RBUF)
-- 
2.5.0


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