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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2020-01-28 12:11:47 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-02 16:34:12 +0200 |
| commit | 5567dc658363d57edda0a000e5edabaacf4ee7d4 (patch) | |
| tree | d773b3a0eb3b7d3bc4ff335b197e6c02de18854b /arch/arm | |
| parent | 9e92bbac2d92c72fff268e0fe447adc3bcc9e28e (diff) | |
| download | linux-stable-5567dc658363d57edda0a000e5edabaacf4ee7d4.tar.gz linux-stable-5567dc658363d57edda0a000e5edabaacf4ee7d4.tar.bz2 linux-stable-5567dc658363d57edda0a000e5edabaacf4ee7d4.zip | |
ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
[ Upstream commit 27f13774654ea6bd0b6fc9b97cce8d19e5735661 ]
'dma-ranges' in a PCI bridge node does correctly set dma masks for PCI
devices not described in the DT. Certain DRA7 platforms (e.g., DRA76)
has RAM above 32-bit boundary (accessible with LPAE config) though the
PCIe bridge will be able to access only 32-bits. Add 'dma-ranges'
property in PCIe RC DT nodes to indicate the host bridge can access
only 32 bits.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/boot/dts/dra7.dtsi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index fec965009b9f..a40a7af85d02 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -302,6 +302,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x20013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>; @@ -356,6 +357,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x30013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>; |