linux-kernel - [PATCH v2 6/9] riscv: dts: microchip: icicle: update pci address properties

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Date:   Tue, 30 Aug 2022 11:18:01 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Daire McNamara <daire.mcnamara@...rochip.com>,
        Shravan Chippa <shravan.chippa@...rochip.com>
CC:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Cyril Jean <Cyril.Jean@...rochip.com>,
        Lewis Hanly <lewis.hanly@...rochip.com>,
        Vattipalli Praveen <praveen.kumar@...rochip.com>,
        Wolfgang Grandegger <wg@...es-embedded.de>,
        Hugh Breslin <hugh.breslin@...rochip.com>,
        <devicetree@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 6/9] riscv: dts: microchip: icicle: update pci address properties

For the v2022.09 reference design the PCI root port's data region has
been moved to FIC1 from FIC0. This is a shorter path, allowing for
higher clock rates and improved through-put. As a result, the address at
which the PCIe's data region appears to the core complex has changed.
The config region's address is unchanged.

As FIC0 is no longer used, its clock can be removed too.

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi    | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
index a21440c8ee03..32d51c4a5b0c 100644
--- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
@@ -2,6 +2,7 @@
 /* Copyright (c) 2020-2021 Microchip Technology Inc */
 
 / {
+
 	compatible = "microchip,mpfs-icicle-reference-rtlv2209", "microchip,mpfs-icicle-kit",
 		     "microchip,mpfs";
 
@@ -38,13 +39,13 @@ fabric_clk1: fabric-clk1 {
 		clock-frequency = <125000000>;
 	};
 
-	pcie: pcie@...0000000 {
+	pcie: pcie@...0000000 {
 		compatible = "microchip,pcie-host-1.0";
 		#address-cells = <0x3>;
 		#interrupt-cells = <0x1>;
 		#size-cells = <0x2>;
 		device_type = "pci";
-		reg = <0x20 0x0 0x0 0x8000000>, <0x0 0x43000000 0x0 0x10000>;
+		reg = <0x30 0x0 0x0 0x8000000>, <0x0 0x43000000 0x0 0x10000>;
 		reg-names = "cfg", "apb";
 		bus-range = <0x0 0x7f>;
 		interrupt-parent = <&plic>;
@@ -54,9 +55,9 @@ pcie: pcie@...0000000 {
 				<0 0 0 3 &pcie_intc 2>,
 				<0 0 0 4 &pcie_intc 3>;
 		interrupt-map-mask = <0 0 0 7>;
-		clocks = <&fabric_clk1>, <&fabric_clk1>, <&fabric_clk3>;
-		clock-names = "fic0", "fic1", "fic3";
-		ranges = <0x3000000 0x0 0x8000000 0x20 0x8000000 0x0 0x80000000>;
+		clocks = <&fabric_clk1>, <&fabric_clk3>;
+		clock-names = "fic1", "fic3";
+		ranges = <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>;
 		dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000 0x1 0x00000000>;
 		msi-parent = <&pcie>;
 		msi-controller;
-- 
2.36.1