linux-kernel - [PATCH 1/3] ARM: dts: imx6ull: fix the i.MX6ULL UART8 configuration

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Message-Id: <1516955032-21167-2-git-send-email-LW@KARO-electronics.de>
Date:   Fri, 26 Jan 2018 09:23:50 +0100
From:   Lothar Waßmann <LW@...O-electronics.de>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX
        / MXC ARM ARCHITECTURE),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Cc:     Lothar Waßmann <LW@...O-electronics.de>
Subject: [PATCH 1/3] ARM: dts: imx6ull: fix the i.MX6ULL UART8 configuration

UART8 on i.MX6ULL is not located on the SPBA bus like on i.MX6UL but
on the (otherwise unused) AIPS-3 bus.
Create the appropriate AIPS-3 bus configuration and move the uart8
definition where it belongs.

Signed-off-by: Lothar Waßmann <LW@...O-electronics.de>
---
 arch/arm/boot/dts/imx6ull.dtsi | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi
index 0c18291..abc815f 100644
--- a/arch/arm/boot/dts/imx6ull.dtsi
+++ b/arch/arm/boot/dts/imx6ull.dtsi
@@ -41,3 +41,32 @@
 
 #include "imx6ul.dtsi"
 #include "imx6ull-pinfunc.h"
+
+/ {
+	soc {
+		aips-bus@...0000 {
+			spba-bus@...0000 {
+				/delete-node/ serial@...4000;
+			};
+		};
+
+		aips3: aips-bus@...0000 {
+			compatible = "fsl,aips-bus", "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x02200000 0x100000>;
+			ranges;
+
+			uart8: serial@...8000 {
+				compatible = "fsl,imx6ul-uart",
+					     "fsl,imx6q-uart";
+				reg = <0x02288000 0x4000>;
+				interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX6UL_CLK_IPG>,
+					 <&clks IMX6UL_CLK_UART8_SERIAL>;
+				clock-names = "ipg", "per";
+				status = "disabled";
+			};
+		};
+	};
+};
-- 
2.1.4