[PATCH v2 6/8] ARM: dts: r8a77470: Initial SoC device tree
From: horms@verge.net.au (Simon Horman)
Date: 2018-03-30 06:54:40
Also in:
linux-devicetree, linux-renesas-soc
On Wed, Mar 28, 2018 at 08:26:14PM +0100, Biju Das wrote:
quoted hunk ↗ jump to hunk
The initial R8A77470 SoC device tree including CPU0, GIC, timer, SYSC, RST, CPG, and the required clock descriptions. Signed-off-by: Biju Das <redacted> Reviewed-by: Fabrizio Castro <redacted> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> --- V1->V2: * Incorporated geert's review comment * Moved prr node inside soc node. arch/arm/boot/dts/r8a77470.dtsi | 155 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 arch/arm/boot/dts/r8a77470.dtsidiff --git a/arch/arm/boot/dts/r8a77470.dtsi b/arch/arm/boot/dts/r8a77470.dtsi new file mode 100644 index 0000000..f096419 --- /dev/null +++ b/arch/arm/boot/dts/r8a77470.dtsi@@ -0,0 +1,155 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Source for the r8a77470 SoC + * + * Copyright (C) 2018 Renesas Electronics Corp. + */ + +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/clock/r8a77470-cpg-mssr.h> +#include <dt-bindings/power/r8a77470-sysc.h>
As requested by Geert in his review of v1, please use numerical values for the initial submission as the dt-bindings headers and the DTS files go upstream through different maintainer paths. In other words, please do not include r8a77470-cpg-mssr.h or r8a77470-sysc.h in the initial submission of this file as those header files will not be present and there will be a build failure. Rather, please use numeric values for now and, as a follow-up in the v4.19 development cycle, provide a patch to use the headers.
+/ {
+ compatible = "renesas,r8a77470";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0>;
+ clock-frequency = <1000000000>;
+ clocks = <&cpg CPG_CORE R8A77470_CLK_Z2>;
+ power-domains = <&sysc R8A77470_PD_CA7_CPU0>;
+ next-level-cache = <&L2_CA7>;
+ };
+
+
+ L2_CA7: cache-controller-0 {
+ compatible = "cache";
+ cache-unified;
+ cache-level = <2>;
+ power-domains = <&sysc R8A77470_PD_CA7_SCU>;
+ };
+ };
+
+ /* External root clock */
+ extal_clk: extal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ /* This value must be overridden by the board. */
+ clock-frequency = <0>;
+ };
+
+ /* External SCIF clock */
+ scif_clk: scif {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ /* This value must be overridden by the board. */
+ clock-frequency = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ cpg: clock-controller at e6150000 {
+ compatible = "renesas,r8a77470-cpg-mssr";
+ reg = <0 0xe6150000 0 0x1000>;
+ clocks = <&extal_clk>, <&usb_extal_clk>;
+ clock-names = "extal", "usb_extal";
+ #clock-cells = <2>;
+ #power-domain-cells = <0>;
+ #reset-cells = <1>;
+ };
+
+ rst: reset-controller at e6160000 {
+ compatible = "renesas,r8a77470-rst";
+ reg = <0 0xe6160000 0 0x100>;
+ };
+
+ sysc: system-controller at e6180000 {
+ compatible = "renesas,r8a77470-sysc";
+ reg = <0 0xe6180000 0 0x200>;
+ #power-domain-cells = <1>;
+ };
+
+ icram0: sram at e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram at e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram at 0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x100>;
+ };
+ };
+
+ icram2: sram at e6300000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe6300000 0 0x20000>;
+ };
+
+ scif1: serial at e6e68000 {
+ compatible = "renesas,scif-r8a77470",
+ "renesas,rcar-gen2-scif", "renesas,scif";
+ reg = <0 0xe6e68000 0 0x40>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 720>,
+ <&cpg CPG_CORE R8A77470_CLK_ZS>, <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
+ resets = <&cpg 720>;
+ status = "disabled";
+ };
+
+ gic: interrupt-controller at f1001000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0 0xf1001000 0 0x1000>, <0 0xf1002000 0 0x2000>,
+ <0 0xf1004000 0 0x2000>, <0 0xf1006000 0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ clocks = <&cpg CPG_MOD 408>;
+ clock-names = "clk";
+ power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
+ resets = <&cpg 408>;
+ };
+
+ prr: chipid at ff000044 {
+ compatible = "renesas,prr";
+ reg = <0 0xff000044 0 4>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ /* External USB clock - can be overridden by the board */
+ usb_extal_clk: usb_extal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <48000000>;
+ };
+};
--
2.7.4