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ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes

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'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>
This commit is contained in:
Kishon Vijay Abraham I 2020-01-28 12:11:47 +05:30 committed by Tony Lindgren
parent 00a39c92c8
commit 27f1377465
1 changed files with 2 additions and 0 deletions
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arch/arm/boot/dts/dra7.dtsi
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@ -184,6 +184,7 @@ pcie1_rc: pcie@51000000 {
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>;
@ -238,6 +239,7 @@ pcie2_rc: pcie@51800000 {
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>;