public inbox for linux-arm-kernel@lists.infradead.org
 help / color / mirror / Atom feed
From: Li Yang <leoyang.li@nxp.com>
To: shawnguo@kernel.org, devicetree@vger.kernel.org
Cc: robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Laurentiu Tudor <laurentiu.tudor@nxp.com>,
	Robin Murphy <robin.murphy@arm.com>, Li Yang <leoyang.li@nxp.com>
Subject: [PATCH v3 6/9] arm64: dts: ls1046a: use a pseudo-bus to constrain usb and sata dma size
Date: Thu, 22 Sep 2022 16:40:27 -0500	[thread overview]
Message-ID: <20220922214030.9004-7-leoyang.li@nxp.com> (raw)
In-Reply-To: <20220922214030.9004-1-leoyang.li@nxp.com>

From: Laurentiu Tudor <laurentiu.tudor@nxp.com>

Wrap the usb and sata 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 <robin.murphy@arm.com>
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
---
 .../arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 90 ++++++++++---------
 1 file changed, 49 insertions(+), 41 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index 2a445c455b6b..4d56735b5361 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -711,47 +711,55 @@ QORIQ_CLK_PLL_DIV(2)>,
 			dma-noncoherent;
 		};
 
-		usb0: usb@2f00000 {
-			compatible = "snps,dwc3";
-			reg = <0x0 0x2f00000 0x0 0x10000>;
-			interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
-			snps,quirk-frame-length-adjustment = <0x20>;
-			snps,dis_rxdet_inp3_quirk;
-			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
-			usb3-lpm-capable;
-		};
-
-		usb1: usb@3000000 {
-			compatible = "snps,dwc3";
-			reg = <0x0 0x3000000 0x0 0x10000>;
-			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
-			snps,quirk-frame-length-adjustment = <0x20>;
-			snps,dis_rxdet_inp3_quirk;
-			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
-			usb3-lpm-capable;
-		};
-
-		usb2: usb@3100000 {
-			compatible = "snps,dwc3";
-			reg = <0x0 0x3100000 0x0 0x10000>;
-			interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
-			snps,quirk-frame-length-adjustment = <0x20>;
-			snps,dis_rxdet_inp3_quirk;
-			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
-			usb3-lpm-capable;
-		};
-
-		sata: sata@3200000 {
-			compatible = "fsl,ls1046a-ahci";
-			reg = <0x0 0x3200000 0x0 0x10000>,
-				<0x0 0x20140520 0x0 0x4>;
-			reg-names = "ahci", "sata-ecc";
-			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
-					    QORIQ_CLK_PLL_DIV(2)>;
+		aux_bus: aux_bus {
+			#address-cells = <2>;
+			#size-cells = <2>;
+			compatible = "simple-bus";
+			ranges;
+			dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x00000000>;
+
+			usb0: usb@2f00000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0x2f00000 0x0 0x10000>;
+				interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				snps,quirk-frame-length-adjustment = <0x20>;
+				snps,dis_rxdet_inp3_quirk;
+				snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
+				usb3-lpm-capable;
+			};
+
+			usb1: usb@3000000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0x3000000 0x0 0x10000>;
+				interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				snps,quirk-frame-length-adjustment = <0x20>;
+				snps,dis_rxdet_inp3_quirk;
+				snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
+				usb3-lpm-capable;
+			};
+
+			usb2: usb@3100000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0x3100000 0x0 0x10000>;
+				interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				snps,quirk-frame-length-adjustment = <0x20>;
+				snps,dis_rxdet_inp3_quirk;
+				snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
+				usb3-lpm-capable;
+			};
+
+			sata: sata@3200000 {
+				compatible = "fsl,ls1046a-ahci";
+				reg = <0x0 0x3200000 0x0 0x10000>,
+					<0x0 0x20140520 0x0 0x4>;
+				reg-names = "ahci", "sata-ecc";
+				interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
+						    QORIQ_CLK_PLL_DIV(2)>;
+			};
 		};
 
 		msi1: msi-controller@1580000 {
-- 
2.37.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-09-22 21:42 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22 21:40 [PATCH v3 0/9] accumulated dts updates for ls1046a Li Yang
2022-09-22 21:40 ` [PATCH v3 1/9] arm64: dts: ls1046a: Enable usb3-lpm-capable for usb3 node Li Yang
2022-09-22 21:40 ` [PATCH v3 2/9] arm64: dts: ls1046a: Add the PME interrupt and big-endian to PCIe EP nodes Li Yang
2022-09-22 21:40 ` [PATCH v3 3/9] arm64: dts: ls1046a: Add big-endian property for PCIe nodes Li Yang
2022-09-22 21:40 ` [PATCH v3 4/9] arm64: dts: ls1046a: add missing dma ranges property Li Yang
2022-09-22 21:40 ` [PATCH v3 5/9] arm64: dts: ls1046a: make dma-coherent global to the SoC Li Yang
2022-09-22 21:40 ` Li Yang [this message]
2022-09-22 21:40 ` [PATCH v3 7/9] arm64: dts: ls1046a: add gpios based i2c recovery information Li Yang
2022-09-22 21:40 ` [PATCH v3 8/9] arm64: dts: ls1046a-qds: add mmio based mdio-mux nodes for FPGA Li Yang
2022-09-22 21:40 ` [PATCH v3 9/9] arm64: dts: ls1046a-qds: Modify the qspi flash frequency Li Yang
2022-10-23 13:24 ` [PATCH v3 0/9] accumulated dts updates for ls1046a Shawn Guo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220922214030.9004-7-leoyang.li@nxp.com \
    --to=leoyang.li@nxp.com \
    --cc=devicetree@vger.kernel.org \
    --cc=laurentiu.tudor@nxp.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=robh+dt@kernel.org \
    --cc=robin.murphy@arm.com \
    --cc=shawnguo@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox