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Message-ID: <OS0PR01MB592232BFAF59D5C81CCBE6C7863B9@OS0PR01MB5922.jpnprd01.prod.outlook.com>
Date: Fri, 4 Jun 2021 13:54:51 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
"linux-renesas-soc@...r.kernel.org"
<linux-renesas-soc@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>
CC: Prabhakar <prabhakar.csengg@...il.com>,
Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: RE: [PATCH v2 11/12] arm64: dts: renesas: Add initial DTSI for
RZ/G2{L,LC} SoC's
Hi Prabhakar,
Thanks for the patch.
> Subject: [PATCH v2 11/12] arm64: dts: renesas: Add initial DTSI for
> RZ/G2{L,LC} SoC's
>
> Add initial DTSI for RZ/G2{L,LC} SoC's.
>
> File structure:
> r9a07g044.dtsi => RZ/G2L family SoC common parts r9a07g044l1.dtsi =>
> Specific to RZ/G2L (R9A07G044L single cortex A55) SoC
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
> ---
> arch/arm64/boot/dts/renesas/r9a07g044.dtsi | 119 +++++++++++++++++++
> arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi | 25 ++++
> 2 files changed, 144 insertions(+)
> create mode 100644 arch/arm64/boot/dts/renesas/r9a07g044.dtsi
> create mode 100644 arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
>
> diff --git a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
> b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
> new file mode 100644
> index 000000000000..b2dbf6543d98
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
> @@ -0,0 +1,119 @@
> +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +/*
> + * Device Tree Source for the RZ/G2L and RZ/G2LC common SoC parts
> + *
> + * Copyright (C) 2021 Renesas Electronics Corp.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/r9a07g044-cpg.h>
> +
> +/ {
> + compatible = "renesas,r9a07g044";
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + extal_clk: extal {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + /* This value must be overridden by the board */
> + clock-frequency = <0>;
> + };
> +
> + psci {
> + compatible = "arm,psci-1.0", "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu-map {
> + cluster0 {
> + core0 {
> + cpu = <&cpu0>;
> + };
> + core1 {
> + cpu = <&cpu1>;
> + };
> + };
> + };
> +
> + cpu0: cpu@0 {
> + compatible = "arm,cortex-a55";
> + reg = <0>;
> + device_type = "cpu";
> + next-level-cache = <&L3_CA55>;
> + enable-method = "psci";
> + };
> +
> + cpu1: cpu@100 {
> + compatible = "arm,cortex-a55";
> + reg = <0x100>;
> + device_type = "cpu";
> + next-level-cache = <&L3_CA55>;
> + enable-method = "psci";
> + };
> +
> + L3_CA55: cache-controller-0 {
> + compatible = "cache";
> + cache-unified;
> + cache-size = <0x40000>;
> + };
> + };
> +
> + soc: soc {
> + compatible = "simple-bus";
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + scif0: serial@...4b800 {
> + compatible = "renesas,scif-r9a07g044";
> + reg = <0 0x1004b800 0 0x400>;
> + interrupts = <GIC_SPI 380 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 382 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 383 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 381 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "eri", "rxi", "txi",
> + "bri", "dri", "tei";
> + clocks = <&cpg CPG_MOD R9A07G044_CLK_SCIF0>;
> + clock-names = "fck";
> + power-domains = <&cpg>;
> + resets = <&cpg R9A07G044_CLK_SCIF0>;
> + status = "disabled";
> + };
> +
> + cpg: clock-controller@...10000 {
> + compatible = "renesas,r9a07g044-cpg";
> + reg = <0 0x11010000 0 0x10000>;
What about WDTOVF_RST(0xB10) and WDTRST_SEL(0xB14) registers, this registers to be handled by WDT driver.
Unfortunately it is in CPG block.
So do we need to map the entire CPG registers or up to 0xB00?
Geert, Prabhakar: Any thoughts?
Cheers,
Biju
> + clocks = <&extal_clk>;
> + clock-names = "extal";
> + #clock-cells = <2>;
> + #reset-cells = <1>;
> + #power-domain-cells = <0>;
> + };
> +
> + gic: interrupt-controller@...00000 {
> + compatible = "arm,gic-v3";
> + #interrupt-cells = <3>;
> + #address-cells = <0>;
> + interrupt-controller;
> + reg = <0x0 0x11900000 0 0x40000>,
> + <0x0 0x11940000 0 0x60000>;
> + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
> + };
> + };
> +
> + timer {
> + compatible = "arm,armv8-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)>;
> + };
> +};
> diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
> b/arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
> new file mode 100644
> index 000000000000..02f6da806696
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/r9a07g044l1.dtsi
> @@ -0,0 +1,25 @@
> +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +/*
> + * Device Tree Source for the RZ/G2L R9A07G044L1 common parts
> + *
> + * Copyright (C) 2021 Renesas Electronics Corp.
> + */
> +
> +/dts-v1/;
> +#include "r9a07g044.dtsi"
> +
> +/ {
> + compatible = "renesas,r9a07g044l1", "renesas,r9a07g044";
> +
> + cpus {
> + /delete-node/ cpu-map;
> + /delete-node/ cpu@100;
> + };
> +
> + timer {
> + interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1)
> | IRQ_TYPE_LEVEL_LOW)>,
> + <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) |
> IRQ_TYPE_LEVEL_LOW)>,
> + <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) |
> IRQ_TYPE_LEVEL_LOW)>,
> + <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) |
> IRQ_TYPE_LEVEL_LOW)>;
> + };
> +};
> --
> 2.17.1
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