diff options
| author | Liu Gang <Gang.Liu@nxp.com> | 2016-06-07 02:55:46 -0400 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2016-06-15 20:43:10 -0400 |
| commit | f8ed1d9b0f6758db7e2b65b6e88f8a923a3a22ab (patch) | |
| tree | 3ac59ba597183f3ec38f1c23383411c627170823 | |
| parent | 2f082b13f2ef89548d5629d9bbf8795ed246a0ec (diff) | |
arm64: dts: ls1043a: Add 'dma-coherent' for ls1043a PCI nodes
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 ls1043a 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>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi index 2c6832a12990..c451b814ac74 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | |||
| @@ -482,6 +482,7 @@ | |||
| 482 | #address-cells = <3>; | 482 | #address-cells = <3>; |
| 483 | #size-cells = <2>; | 483 | #size-cells = <2>; |
| 484 | device_type = "pci"; | 484 | device_type = "pci"; |
| 485 | dma-coherent; | ||
| 485 | num-lanes = <4>; | 486 | num-lanes = <4>; |
| 486 | bus-range = <0x0 0xff>; | 487 | bus-range = <0x0 0xff>; |
| 487 | ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */ | 488 | ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */ |
| @@ -506,6 +507,7 @@ | |||
| 506 | #address-cells = <3>; | 507 | #address-cells = <3>; |
| 507 | #size-cells = <2>; | 508 | #size-cells = <2>; |
| 508 | device_type = "pci"; | 509 | device_type = "pci"; |
| 510 | dma-coherent; | ||
| 509 | num-lanes = <2>; | 511 | num-lanes = <2>; |
| 510 | bus-range = <0x0 0xff>; | 512 | bus-range = <0x0 0xff>; |
| 511 | ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */ | 513 | ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */ |
| @@ -530,6 +532,7 @@ | |||
| 530 | #address-cells = <3>; | 532 | #address-cells = <3>; |
| 531 | #size-cells = <2>; | 533 | #size-cells = <2>; |
| 532 | device_type = "pci"; | 534 | device_type = "pci"; |
| 535 | dma-coherent; | ||
| 533 | num-lanes = <2>; | 536 | num-lanes = <2>; |
| 534 | bus-range = <0x0 0xff>; | 537 | bus-range = <0x0 0xff>; |
| 535 | ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */ | 538 | ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */ |