From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 13B72182D8 for ; Thu, 28 Sep 2023 21:56:42 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E911A1FB; Thu, 28 Sep 2023 14:57:19 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0E5493F59C; Thu, 28 Sep 2023 14:56:39 -0700 (PDT) From: Andre Przywara To: Jagan Teki , u-boot@lists.denx.de Cc: Samuel Holland , Jernej Skrabec , Icenowy Zheng , Maxim Kiselev , Sam Edwards , Okhunjon Sobirjonov , linux-sunxi@lists.linux.dev, andre.przywara@arm.com, andre.przywara@foss.arm.com Subject: [PATCH v2 21/22] ARM: dts: sunxi: add Allwinner T113-s SoC .dtsi Date: Thu, 28 Sep 2023 22:54:54 +0100 Message-Id: <20230928215455.28094-22-andre.przywara@arm.com> X-Mailer: git-send-email 2.35.8 In-Reply-To: <20230928215455.28094-1-andre.przywara@arm.com> References: <20230928215455.28094-1-andre.przywara@arm.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The Allwinner T113-s SoC is apparently using the same (or at least a very similar) die as the D1/D1s, but replaces the single RISC-V core with two Arm Cortex-A7 cores. Since the D1 core .dtsi already describes all common peripherals, we just need a DT describing the ARM specific peripherals: the CPU cores, the Generic Timer, the GIC and the PMU. We include the core .dtsi directly from the riscv DT directory. The ARM core version of the DT specifies the CPUX watchdog as "reserved", which means it won't be recognised by U-Boot. Override this in our generic sunxi-u-boot.dtsi, to let U-Boot pick up this watchdog, so that the generic reset driver will work. Signed-off-by: Andre Przywara --- arch/arm/dts/sun8i-t113s.dtsi | 59 ++++++++++++++++++++++++++++++++++ arch/arm/dts/sunxi-u-boot.dtsi | 7 ++++ 2 files changed, 66 insertions(+) create mode 100644 arch/arm/dts/sun8i-t113s.dtsi diff --git a/arch/arm/dts/sun8i-t113s.dtsi b/arch/arm/dts/sun8i-t113s.dtsi new file mode 100644 index 00000000000..b94b69142af --- /dev/null +++ b/arch/arm/dts/sun8i-t113s.dtsi @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +// Copyright (C) 2022 Arm Ltd. + +#define SOC_PERIPHERAL_IRQ(nr) GIC_SPI nr + +#include +#include <../../riscv/dts/sunxi-d1s-t113.dtsi> +#include <../../riscv/dts/sunxi-d1-t113.dtsi> + +/ { + interrupt-parent = <&gic>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + compatible = "arm,cortex-a7"; + device_type = "cpu"; + reg = <0>; + clocks = <&ccu CLK_CPUX>; + clock-names = "cpu"; + }; + + cpu1: cpu@1 { + compatible = "arm,cortex-a7"; + device_type = "cpu"; + reg = <1>; + clocks = <&ccu CLK_CPUX>; + clock-names = "cpu"; + }; + }; + + gic: interrupt-controller@1c81000 { + compatible = "arm,gic-400"; + reg = <0x03021000 0x1000>, + <0x03022000 0x2000>, + <0x03024000 0x2000>, + <0x03026000 0x2000>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <3>; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = , + , + , + ; + }; + + pmu { + compatible = "arm,cortex-a7-pmu"; + interrupts = , + ; + interrupt-affinity = <&cpu0>, <&cpu1>; + }; +}; diff --git a/arch/arm/dts/sunxi-u-boot.dtsi b/arch/arm/dts/sunxi-u-boot.dtsi index af419c7e590..a0c8abb7033 100644 --- a/arch/arm/dts/sunxi-u-boot.dtsi +++ b/arch/arm/dts/sunxi-u-boot.dtsi @@ -23,6 +23,13 @@ }; }; +/* Let U-Boot be the firmware layer that controls the watchdog. */ +#ifdef CONFIG_MACH_SUN8I_R528 +&wdt { + status = "okay"; +}; +#endif + &binman { u-boot-sunxi-with-spl { filename = "u-boot-sunxi-with-spl.bin"; -- 2.35.8