From a97ab6690779ad5b546fe6aa074955013caec5eb Mon Sep 17 00:00:00 2001 From: Laurentiu Tudor Date: Thu, 20 Sep 2018 13:46:54 +0300 Subject: arm64: dts: ls104x: use a pseudo-bus to constrain usb dma size Wrap the usb controllers in an intermediate simple-bus and use it to constrain the dma address size of these usb controllers to the 40 bits that they generate toward the interconnect. This is required because the SoC uses 48 bits address sizes and this mismatch would lead to smmu context faults because the usb generates 40-bit addresses while the smmu page tables are populated with 48-bit wide addresses. Suggested-by: Robin Murphy Signed-off-by: Laurentiu Tudor --- arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 82 ++++++++++++++------------ 1 file changed, 45 insertions(+), 37 deletions(-) (limited to 'arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi') diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi index 614a1f313113..097ba4e5e70b 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi @@ -726,43 +726,51 @@ <&clockgen 4 0>; }; - usb0: usb3@2f00000 { - compatible = "snps,dwc3"; - reg = <0x0 0x2f00000 0x0 0x10000>; - interrupts = <0 60 0x4>; - dr_mode = "host"; - snps,quirk-frame-length-adjustment = <0x20>; - snps,dis_rxdet_inp3_quirk; - usb3-lpm-capable; - snps,dis-u1u2-when-u3-quirk; - snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; - configure-gfladj; - }; - - usb1: usb3@3000000 { - compatible = "snps,dwc3"; - reg = <0x0 0x3000000 0x0 0x10000>; - interrupts = <0 61 0x4>; - dr_mode = "host"; - snps,quirk-frame-length-adjustment = <0x20>; - snps,dis_rxdet_inp3_quirk; - usb3-lpm-capable; - snps,dis-u1u2-when-u3-quirk; - snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; - configure-gfladj; - }; - - usb2: usb3@3100000 { - compatible = "snps,dwc3"; - reg = <0x0 0x3100000 0x0 0x10000>; - interrupts = <0 63 0x4>; - dr_mode = "host"; - snps,quirk-frame-length-adjustment = <0x20>; - snps,dis_rxdet_inp3_quirk; - usb3-lpm-capable; - snps,dis-u1u2-when-u3-quirk; - snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; - configure-gfladj; + usb_aux_bus: usb_aux_bus { + #address-cells = <2>; + #size-cells = <2>; + compatible = "simple-bus"; + ranges; + dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x00000000>; + + usb0: usb3@2f00000 { + compatible = "snps,dwc3"; + reg = <0x0 0x2f00000 0x0 0x10000>; + interrupts = <0 60 0x4>; + dr_mode = "host"; + snps,quirk-frame-length-adjustment = <0x20>; + snps,dis_rxdet_inp3_quirk; + usb3-lpm-capable; + snps,dis-u1u2-when-u3-quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + configure-gfladj; + }; + + usb1: usb3@3000000 { + compatible = "snps,dwc3"; + reg = <0x0 0x3000000 0x0 0x10000>; + interrupts = <0 61 0x4>; + dr_mode = "host"; + snps,quirk-frame-length-adjustment = <0x20>; + snps,dis_rxdet_inp3_quirk; + usb3-lpm-capable; + snps,dis-u1u2-when-u3-quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + configure-gfladj; + }; + + usb2: usb3@3100000 { + compatible = "snps,dwc3"; + reg = <0x0 0x3100000 0x0 0x10000>; + interrupts = <0 63 0x4>; + dr_mode = "host"; + snps,quirk-frame-length-adjustment = <0x20>; + snps,dis_rxdet_inp3_quirk; + usb3-lpm-capable; + snps,dis-u1u2-when-u3-quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + configure-gfladj; + }; }; sata: sata@3200000 { -- cgit v1.2.3