diff options
| author |   Robin Murphy <robin.murphy@arm.com> | 2021-03-05 17:33:17 +0000 |
|---|---|---|
| committer |   Sudeep Holla <sudeep.holla@arm.com> | 2021-03-15 13:24:09 +0000 |
| commit | 4ac4d146cb63cd4709c4729e5eca563e38106195 (patch) | |
| tree | e6ebf08822f55604e5657b83345e791b0e4c2229 /arch/arm64/boot/dts/arm/juno-base.dtsi | |
| parent | Linux 5.12-rc2 (diff) | |
| download | linux-dev-4ac4d146cb63cd4709c4729e5eca563e38106195.tar.xz linux-dev-4ac4d146cb63cd4709c4729e5eca563e38106195.zip | |
arm64: dts: juno: Describe PCI dma-ranges
The PLDA root complex on Juno relies on an address-based lookup table to
generate AXI attributes for inbound PCI transactions, and as such will
not pass any transaction not matching any programmed address range. The
standard firmware configuration programs 3 entries covering the GICv2m
MSI doorbell and the 2 DRAM regions, so add a "dma-ranges" property to
describe those usable inbound windows.
Link: https://lore.kernel.org/r/720d0a9a42e33148fcac45cd39a727093a32bf32.1614965598.git.robin.murphy@arm.com
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'arch/arm64/boot/dts/arm/juno-base.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/arm/juno-base.dtsi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index f6c55877fbd9..b48a76b100b1 100644 --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -544,6 +544,10 @@ ranges = <0x01000000 0x00 0x00000000 0x00 0x5f800000 0x0 0x00800000>, <0x02000000 0x00 0x50000000 0x00 0x50000000 0x0 0x08000000>, <0x42000000 0x40 0x00000000 0x40 0x00000000 0x1 0x00000000>; + /* Standard AXI Translation entries as programmed by EDK2 */ + dma-ranges = <0x02000000 0x0 0x2c1c0000 0x0 0x2c1c0000 0x0 0x00040000>, + <0x02000000 0x0 0x80000000 0x0 0x80000000 0x0 0x80000000>, + <0x43000000 0x8 0x00000000 0x8 0x00000000 0x2 0x00000000>; #interrupt-cells = <1>; interrupt-map-mask = <0 0 0 7>; interrupt-map = <0 0 0 1 &gic 0 GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>, |