On Mon, Oct 19, 2015 at 09:36:00AM -0500, Jeremy Linton wrote:
> These patches correct a number of problems with the JUNO ACPI tables.
>
> First, put CCA attributes on the devices which can do DMA. This is
> because the linux kernel now requires ARM64 devices specify a coherency
> model. Without CCA the devices are unable to perform DMA.
>
> Update the EHCI window to a full 64k as documented in the
> Juno Platform SoC TRM. This makes it match the values used in some
> other places.
>
> Finally, add some _DSD entries for the SMSC ethernet chip.
> The latter changes are required for the mainline kernels to use the adapter.
>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Jeremy Linton <jeremy.lin...@arm.com>
Thanks - committed as SVN r18628 (with an r18627 inserted before to
resolve CRLF issues in existing source files).
/
Leif
> ---
> ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl | 1 +
> ArmPlatformPkg/ArmJunoPkg/AcpiTables/Dsdt.asl | 14 ++++++++++++--
> 2 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
> b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
> index 7d50a5f..645ba93 100644
> --- a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
> +++ b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiSsdtRootPci.asl
> @@ -51,6 +51,7 @@ DefinitionBlock("SsdtPci.aml", "SSDT", 1, "ARMLTD",
> "ARM-JUNO", EFI_ACPI_ARM_OEM
> Name(_CID, EISAID("PNP0A03")) // Compatible PCI Root Bridge
> Name(_SEG, Zero) // PCI Segment Group number
> Name(_BBN, Zero) // PCI Base Bus Number
> + Name(_CCA, 1) // Initially mark the PCI coherent (for JunoR1)
>
> // Root Complex 0
> Device (RP0) {
> diff --git a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/Dsdt.asl
> b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/Dsdt.asl
> index 7a56f00..c80f46a 100644
> --- a/ArmPlatformPkg/ArmJunoPkg/AcpiTables/Dsdt.asl
> +++ b/ArmPlatformPkg/ArmJunoPkg/AcpiTables/Dsdt.asl
> @@ -68,6 +68,15 @@ DefinitionBlock("DsdtTable.aml", "DSDT", 1, "ARMLTD",
> "ARM-JUNO", EFI_ACPI_ARM_O
> Memory32Fixed(ReadWrite, 0x1A000000, 0x1000)
> Interrupt(ResourceConsumer, Level, ActiveHigh, Exclusive) {
> 192 }
> })
> + Name(_DSD, Package() {
> + ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
> + Package() {
> + Package(2) {"phy-mode", "mii"},
> + Package(2) {"reg-io-width", 4 },
> + Package(2) {"smsc,irq-active-high",1},
> + Package(2) {"smsc,irq-push-pull",1}
> + }
> + }) // _DSD()
> }
>
> // UART PL011
> @@ -82,16 +91,17 @@ DefinitionBlock("DsdtTable.aml", "DSDT", 1, "ARMLTD",
> "ARM-JUNO", EFI_ACPI_ARM_O
> }
>
> //
> - // USB Host Controller
> + // USB EHCI Host Controller
> //
> Device(USB0){
> Name(_HID, "ARMH0D20")
> Name(_CID, "PNP0D20")
> Name(_UID, 2)
> + Name(_CCA, 0) //EHCI on this platform is not coherent!
>
> Method(_CRS, 0x0, Serialized){
> Name(RBUF, ResourceTemplate(){
> - Memory32Fixed(ReadWrite, 0x7FFC0000, 0x000000B0)
> + Memory32Fixed(ReadWrite, 0x7FFC0000, 0x10000)
> Interrupt(ResourceConsumer, Level, ActiveHigh, Exclusive)
> {149} // INT ID=149 GIC IRQ ID=117 for Juno SoC USB EHCI Controller
> })
> Return(RBUF)
> --
> 2.4.3
>
>
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