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Mon, 21 Sep 2026 20:47:41 -0700 (PDT) From: Tim Michals To: linux-sunxi@lists.linux.dev Cc: wens@kernel.org, jernej.skrabec@gmail.com, samuel@sholland.org, Tim Michals , Bjorn Andersson , Mathieu Poirier , Andre Przywara , Chen-Yu Tsai , Rob Herring , Krzysztof Kozlowski , linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 7/7] arm64: dts: allwinner: add a523 msgbox and remoteproc nodes Date: Mon, 21 Sep 2026 22:47:11 -0500 Message-ID: <20260922034711.190253-8-tcmichals@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260922034711.190253-1-tcmichals@gmail.com> References: <20260922034711.190253-1-tcmichals@gmail.com> Precedence: bulk X-Mailing-List: linux-remoteproc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add the hardware mailbox (CPUX_MSGBOX) node and the XuanTie RISC-V remoteproc node for Allwinner A523/A527 SoCs. Connect the remoteproc node to the MCU CCU clocks (bus, core) and resets (cfg, core) to support remote processor lifecycle management and RPMsg IPC. Cc: Bjorn Andersson Cc: Mathieu Poirier Cc: Jernej Skrabec Cc: Samuel Holland Cc: Andre Przywara Cc: Chen-Yu Tsai Cc: Rob Herring Cc: Krzysztof Kozlowski Cc: linux-remoteproc@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@lists.linux.dev Signed-off-by: Tim Michals --- .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi index 85ef492ffeae..7c5c39c56858 100644 --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi @@ -1144,5 +1144,44 @@ npu: npu@7122000 { resets = <&mcu_ccu RST_BUS_MCU_NPU>; power-domains = <&ppu PD_NPU>; }; + + msgbox: mailbox@3003000 { + compatible = "allwinner,sun55i-a523-msgbox"; + reg = <0x03003000 0x1000>, + <0x07094000 0x1000>, + <0x07120000 0x1000>, + <0x07136000 0x1000>; + reg-names = "arm", "dsp", "cpus", "rv"; + clocks = <&ccu CLK_BUS_MSGBOX>; + resets = <&ccu RST_BUS_MSGBOX>; + interrupts = , + , + , + ; + #mbox-cells = <1>; + }; + + rproc: remoteproc@7130000 { + compatible = "allwinner,sun55i-a523-rproc", + "allwinner,sun55i-a527-rproc"; + reg = <0x07130000 0x1000>, + <0x07280000 0x40000>, + <0x072c0000 0x40000>, + <0x07010364 0x4>; + reg-names = "cfg", "r_sram", "r_sram1", "remap"; + clocks = <&mcu_ccu CLK_BUS_MCU_RISCV_CFG>, + <&mcu_ccu CLK_MCU_RISCV>, + <&mcu_ccu CLK_BUS_MCU_PUBSRAM>, + <&mcu_ccu CLK_BUS_MCU_RISCV_MSGBOX>; + clock-names = "bus", "core", "sram", "msgbox"; + resets = <&mcu_ccu RST_BUS_MCU_RISCV_CFG>, + <&mcu_ccu RST_BUS_MCU_RISCV_CORE>, + <&mcu_ccu RST_BUS_MCU_PUBSRAM>, + <&mcu_ccu RST_BUS_MCU_RISCV_MSGBOX>; + reset-names = "cfg", "core", "sram", "msgbox"; + mboxes = <&msgbox 8>, <&msgbox 9>; + mbox-names = "rx", "tx"; + status = "disabled"; + }; }; }; -- 2.53.0