| From 90d4d3f4ea45370d482fa609dbae4d2281b4074f Mon Sep 17 00:00:00 2001 |
| From: Kishon Vijay Abraham I <kishon@ti.com> |
| Date: Fri, 17 Apr 2020 12:13:40 +0530 |
| Subject: ARM: dts: dra7: Fix bus_dma_limit for PCIe |
| |
| From: Kishon Vijay Abraham I <kishon@ti.com> |
| |
| commit 90d4d3f4ea45370d482fa609dbae4d2281b4074f upstream. |
| |
| Even though commit cfb5d65f2595 ("ARM: dts: dra7: Add bus_dma_limit |
| for L3 bus") added bus_dma_limit for L3 bus, the PCIe controller |
| gets incorrect value of bus_dma_limit. |
| |
| Fix it by adding empty dma-ranges property to axi@0 and axi@1 |
| (parent device tree node of PCIe controller). |
| |
| Cc: stable@kernel.org |
| Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> |
| Signed-off-by: Tony Lindgren <tony@atomide.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/arm/boot/dts/dra7.dtsi | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| --- a/arch/arm/boot/dts/dra7.dtsi |
| +++ b/arch/arm/boot/dts/dra7.dtsi |
| @@ -172,6 +172,7 @@ |
| #address-cells = <1>; |
| ranges = <0x51000000 0x51000000 0x3000 |
| 0x0 0x20000000 0x10000000>; |
| + dma-ranges; |
| /** |
| * To enable PCI endpoint mode, disable the pcie1_rc |
| * node and enable pcie1_ep mode. |
| @@ -185,7 +186,6 @@ |
| 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>; |
| @@ -230,6 +230,7 @@ |
| #address-cells = <1>; |
| ranges = <0x51800000 0x51800000 0x3000 |
| 0x0 0x30000000 0x10000000>; |
| + dma-ranges; |
| status = "disabled"; |
| pcie2_rc: pcie@51800000 { |
| reg = <0x51800000 0x2000>, <0x51802000 0x14c>, <0x1000 0x2000>; |
| @@ -240,7 +241,6 @@ |
| 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>; |