linux-kernel - [PATCH] arm64: dts: ti: k3-am65: Change #address-cells and #size-cells of interconnect to 2

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Date:   Tue, 28 Aug 2018 15:56:42 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>
CC:     Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>, <nsekhar@...com>,
        <kishon@...com>
Subject: [PATCH] arm64: dts: ti: k3-am65: Change #address-cells and #size-cells of interconnect to 2

AM65 has two PCIe controllers and each PCIe controller has '2' address
spaces one within the 4GB address space of the SoC and the other above
the 4GB address space of the SoC in addition to the register space. The
size of the address space above the 4GB SoC address space is 4GB. These
address ranges will be used by CPU/DMA to access the PCIe address space.
In order to represent the address space above the 4GB SoC address space
and to represent the size of this address space as 4GB, change
address-cells and size-cells of interconnect to 2.

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 10 +++----
 arch/arm64/boot/dts/ti/k3-am65.dtsi      | 38 ++++++++++++------------
 2 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 569618b411f0..fbd6fab8dd5e 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -8,13 +8,13 @@
 &cbass_main {
 	gic500: interrupt-controller@...0000 {
 		compatible = "arm,gic-v3";
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 		#interrupt-cells = <3>;
 		interrupt-controller;
-		reg = <0x01800000 0x10000>,	/* GICD */
-		      <0x01880000 0x90000>;	/* GICR */
+		reg = <0x00 0x01800000 0x00 0x10000>,	/* GICD */
+		      <0x00 0x01880000 0x00 0x90000>;	/* GICR */
 		/*
 		 * vcpumntirq:
 		 * virtual CPU interface maintenance interrupt
@@ -23,7 +23,7 @@
 
 		gic_its: gic-its@...00000 {
 			compatible = "arm,gic-v3-its";
-			reg = <0x01820000 0x10000>;
+			reg = <0x00 0x01820000 0x00 0x10000>;
 			msi-controller;
 			#msi-cells = <1>;
 		};
diff --git a/arch/arm64/boot/dts/ti/k3-am65.dtsi b/arch/arm64/boot/dts/ti/k3-am65.dtsi
index 17a053552852..5d1eb877e128 100644
--- a/arch/arm64/boot/dts/ti/k3-am65.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65.dtsi
@@ -54,31 +54,31 @@
 
 	cbass_main: interconnect@...000 {
 		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x00100000 0x00 0x00100000 0x00020000>, /* ctrl mmr */
-			 <0x00600000 0x00 0x00600000 0x00001100>, /* GPIO */
-			 <0x00900000 0x00 0x00900000 0x00012000>, /* serdes */
-			 <0x01000000 0x00 0x01000000 0x0af02400>, /* Most peripherals */
-			 <0x30800000 0x00 0x30800000 0x0bc00000>, /* MAIN NAVSS */
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0x00 0x00100000 0x00 0x00100000 0x00 0x00020000>, /* ctrl mmr */
+			 <0x00 0x00600000 0x00 0x00600000 0x00 0x00001100>, /* GPIO */
+			 <0x00 0x00900000 0x00 0x00900000 0x00 0x00012000>, /* serdes */
+			 <0x00 0x01000000 0x00 0x01000000 0x00 0x0af02400>, /* Most peripherals */
+			 <0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>, /* MAIN NAVSS */
 			 /* MCUSS Range */
-			 <0x28380000 0x00 0x28380000 0x03880000>,
-			 <0x40200000 0x00 0x40200000 0x00900100>,
-			 <0x42040000 0x00 0x42040000 0x03ac2400>,
-			 <0x45100000 0x00 0x45100000 0x00c24000>,
-			 <0x46000000 0x00 0x46000000 0x00200000>,
-			 <0x47000000 0x00 0x47000000 0x00068400>;
+			 <0x00 0x28380000 0x00 0x28380000 0x00 0x03880000>,
+			 <0x00 0x40200000 0x00 0x40200000 0x00 0x00900100>,
+			 <0x00 0x42040000 0x00 0x42040000 0x00 0x03ac2400>,
+			 <0x00 0x45100000 0x00 0x45100000 0x00 0x00c24000>,
+			 <0x00 0x46000000 0x00 0x46000000 0x00 0x00200000>,
+			 <0x00 0x47000000 0x00 0x47000000 0x00 0x00068400>;
 
 		cbass_mcu: interconnect@...80000 {
 			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
-			ranges = <0x28380000 0x28380000 0x03880000>, /* MCU NAVSS*/
-				 <0x40200000 0x40200000 0x00900100>, /* First peripheral window */
-				 <0x42040000 0x42040000 0x03ac2400>, /* WKUP */
-				 <0x45100000 0x45100000 0x00c24000>, /* MMRs, remaining NAVSS */
-				 <0x46000000 0x46000000 0x00200000>, /* CPSW */
-				 <0x47000000 0x47000000 0x00068400>; /* OSPI space 1 */
+			ranges = <0x28380000 0x00 0x28380000 0x03880000>, /* MCU NAVSS*/
+				 <0x40200000 0x00 0x40200000 0x00900100>, /* First peripheral window */
+				 <0x42040000 0x00 0x42040000 0x03ac2400>, /* WKUP */
+				 <0x45100000 0x00 0x45100000 0x00c24000>, /* MMRs, remaining NAVSS */
+				 <0x46000000 0x00 0x46000000 0x00200000>, /* CPSW */
+				 <0x47000000 0x00 0x47000000 0x00068400>; /* OSPI space 1 */
 
 			cbass_wakeup: interconnect@...40000 {
 				compatible = "simple-bus";
-- 
2.18.0