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arm64: dts: ls2080a: Add 'dma-coherent' for ls2080a PCI nodes

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The 'dma-coherent' indicates that the hardware IP block can ensure
the coherency of the data transferred from/to the IP block. This
can avoid the software cache flush/invalid actions, and improve
the performance significantly.

The PCI IP block of ls2080a has this capability, so adding this
feature to improve the PCI performance.

Signed-off-by: Liu Gang <Gang.Liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Liu Gang 2016-09-08 10:31:44 +08:00 committed by Shawn Guo
parent d5c8b12286
commit e5f51a623a
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
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@ -588,6 +588,7 @@
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <4>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x10 0x00010000 0x0 0x00010000 /* downstream I/O */
@ -612,6 +613,7 @@
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <4>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x12 0x00010000 0x0 0x00010000 /* downstream I/O */
@ -636,6 +638,7 @@
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <8>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x14 0x00010000 0x0 0x00010000 /* downstream I/O */
@ -660,6 +663,7 @@
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <4>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x16 0x00010000 0x0 0x00010000 /* downstream I/O */