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Sat, 26 Sep 2026 17:21:04 -0700 (PDT) Received: from tcmichals-5759.lan ([2607:fb91:3584:35a9:66f8:2cb5:aa80:21fd]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6d8828e1ea0sm838989eaf.6.2026.09.26.17.21.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Sep 2026 17:21:03 -0700 (PDT) From: Tim Michals To: linux-sunxi@lists.linux.dev, linux-remoteproc@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, wens@kernel.org, jernej.skrabec@gmail.com, samuel@sholland.org, andersson@kernel.org, mathieu.poirier@linaro.org, jassisinghbrar@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Tim Michals Subject: [PATCH v2 7/7] arm64: dts: allwinner: add a523 msgbox and remoteproc nodes Date: Sat, 26 Sep 2026 19:20:16 -0500 Message-ID: <20260927002021.797069-8-tcmichals@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260927002021.797069-1-tcmichals@gmail.com> References: <20260922034711.190253-1-tcmichals@gmail.com> <20260927002021.797069-1-tcmichals@gmail.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 Add the hardware mailbox (CPUX_MSGBOX) node and the XuanTie E907 RISC-V remoteproc node for Allwinner A523/A527/T527 SoCs. Connect the remoteproc node to the MCU CCU clocks (bus, core, sram, msgbox) and resets (cfg, core, sram, msgbox) and mailbox channels 8 & 9 for bidirectional host-coprocessor IPC. 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..b4699c4df5e9 100644 --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi @@ -605,6 +605,23 @@ dma: dma-controller@3002000 { #dma-cells = <1>; }; + 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 = , + , + , + ; + interrupt-names = "arm", "dsp", "cpus", "rv"; + #mbox-cells = <1>; + }; + sid: efuse@3006000 { compatible = "allwinner,sun55i-a523-sid", "allwinner,sun50i-a64-sid"; @@ -1144,5 +1161,27 @@ npu: npu@7122000 { resets = <&mcu_ccu RST_BUS_MCU_NPU>; power-domains = <&ppu PD_NPU>; }; + + rproc: remoteproc@7130000 { + compatible = "allwinner,sun55i-a523-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"; + }; }; }; -- 2.43.0