From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 82769CCF9E5 for ; Mon, 27 Oct 2025 12:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=s6A8uXmVc4yR7pSkJs1B9XPFT1pUPTG/SoZzXhB+vIU=; b=cVQSg4Uz7zfNoO /Y7FcyxUP2SCXFa+sGrOjpZpIJ5NCjzCvC3EExrVrq2vT5IW8+Xqx8Tp+kfaSVSHGx2o7uo6YLeks D+b9MHcxO7fp/ZE8jN0tGimSfV0Y28NHdz5m4iXC+2CepGxnsmvXFCAk1pPZrxdoIcO9Rhl3T10Xr yRTwtbrYkJ+ntsZuxn+d2khcV4jfV7f2glV0JgXbdNWONwXditxpLkHuCozwx2idkG7vRFWC+FZyg WkbaZFH0Uc6fd/C9/hVLaRp+dSzeYOfCAHI7wWz6seo7LgyofBBBkxkSSgZ0xU0ZbkRxXvyD1G7+c meNBRBwpspHixhR1Zp0Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vDMkp-0000000DwP5-0vJ8; Mon, 27 Oct 2025 12:55:19 +0000 Received: from mail-io1-xd31.google.com ([2607:f8b0:4864:20::d31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vDMkk-0000000DwM4-3MJJ for linux-riscv@lists.infradead.org; Mon, 27 Oct 2025 12:55:16 +0000 Received: by mail-io1-xd31.google.com with SMTP id ca18e2360f4ac-940d2b701a3so492830239f.0 for ; Mon, 27 Oct 2025 05:55:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=riscstar-com.20230601.gappssmtp.com; s=20230601; t=1761569714; x=1762174514; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WZm4qLXyHnGCSJjs14timCrgYr+hiVUmvuC1ejayZQY=; b=G5zHUy+eEa8ofdY5OD/7dQ4eLuhvs2/hm91rjOsNBXME1koF+w7zfuMkyB4swVupXh 126odaEpss6Fz0P1Br4GWjH/HWUwttdoHn2+F8aZI5ikGiysMXwEM5IWM2ecI6PAhjjB BYmQuE1/yt2J/NPyKuu2lVxhD/l4zPuNhDWuXUCkfW1tAuoNrjLXP5Y3gFuN2jjeKfiz sE6kqN72Ny/9weazEYhfR5IYQ7cUPoff7Sqs/SV8cinR5u90dFFeF08VXcPcck3NnVi1 uJJS15VgNa41p/MSreexp7QLDrmyYDrQcKg00FBXe8QUAqW13s+up91TAmBxEFQV5TAS EUtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761569714; x=1762174514; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WZm4qLXyHnGCSJjs14timCrgYr+hiVUmvuC1ejayZQY=; b=o2RLjg1PnMEghyQ5odeRjB7tVvzrAV4ADwiAnlxcq4Ok7uJAFU+8B3TBj2EnNpBLt1 4D62rKbevAWbCZwTRdndTMOSUZf2YI92QozIVfgWvncEMcBWq1zoDzZDIkzubHV62XUM P/JunQHw3HlMzcTZvj+zEFoFfEfMCJGNYJNH0YOVIvdkq6rme4TXxYDWbOR/oji5LUbb g7l/95vGvWUPwjQGLxH64aV715bSl2tsdXFalB7qLUmvIs5T47iT2Xsf449mOIY0tl9h hm9qsuT59H9r8Nj9b0CQyvgMhgTpfE5h3MqQU0sdpiBeoBtfRqDUA3+M3/vIKgZeTvAe nTRw== X-Forwarded-Encrypted: i=1; AJvYcCVkqGJoP1QpdnhOwZW/sh3HPEHFjvsWgNNmYTX86IeHNUy8QxbpBF0fkXqn0QkHagx77JaPzhVctSFVHQ==@lists.infradead.org X-Gm-Message-State: AOJu0Yzsaseg/4ZcYZLcJgWkYKnl96zvBaYVprmYp6O5KinuFjCY8tRM n9qYtSBtFo2NmtI1kwKEl2BKgqg0BkndSgsSumkYTrtJtaJ6tzH44lGruPc+Cjvf4vS/s7H79il lB/3tuYM= X-Gm-Gg: ASbGncs2imPb6Ioh0teHn7fgRG1juAXfRufmjRPHHiiiLapehnWhBoW0CVK041IfYJi WMsiFZT/dBobZ6OXgPKDIJG9D4UhBfcwG6TMU7HW9/jk2efPO4VhsyQd6N87wk1HrtObwn0DVsb TLWsIxif4jQJisxrSo6u4HUzxHPYi3D4/tqbUt+Vdx/N4Dd/uWE9t3uu2t1xpwnlSEkwBwcUQly 0PQzEx75ZkftY0QJXA/epJSSDJJnitmppPcq7ET1vfQ+BSKZsc20hrIGXr1x3VuTb06uLw9mpOx dhXfcDZrlhjSpGKrUhT+tKoFGISz0AkyAI1uU7q/XnMQXwwHxZFffInsmKhlauInPeyY2/iOpBv 4prAj+DdhzNFpHITU67UXSdzvaqLUInVjkKvdwAJgh3aKlkk7yXczCaBSnJLpvCO6s/QXYUeqlc OfuD/FqYFavMtRny5VSrKGlteyhNu2TykxQvKJQu1jSQs2ZboYpVYXzQ== X-Google-Smtp-Source: AGHT+IFmmT522+C1SBtNjrGRDwvpDMmF/aXjZncAIPKX4af5yw9ZwOirXo4uSn/478nB9D2HnyXQgw== X-Received: by 2002:a05:6602:6b89:b0:945:aa9b:4165 with SMTP id ca18e2360f4ac-945aa9b43c4mr414941839f.1.1761569713842; Mon, 27 Oct 2025 05:55:13 -0700 (PDT) Received: from zippy.localdomain (c-75-72-117-212.hsd1.mn.comcast.net. [75.72.117.212]) by smtp.gmail.com with ESMTPSA id ca18e2360f4ac-94359e742efsm249121639f.7.2025.10.27.05.55.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Oct 2025 05:55:13 -0700 (PDT) From: Alex Elder To: dlan@gentoo.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, devicetree@vger.kernel.org, spacemit@lists.linux.dev, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 3/3] riscv: dts: spacemit: define a SPI controller node Date: Mon, 27 Oct 2025 07:55:03 -0500 Message-ID: <20251027125504.297033-4-elder@riscstar.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251027125504.297033-1-elder@riscstar.com> References: <20251027125504.297033-1-elder@riscstar.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251027_055514_843118_67AA5610 X-CRM114-Status: GOOD ( 10.50 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Define a node for the fourth SoC SPI controller (number 3) on the SpacemiT K1 SoC. Enable it on the Banana Pi BPI-F3 board, which exposes this feature via its GPIO block: GPIO PIN 19: MOSI GPIO PIN 21: MISO GPIO PIN 23: SCLK GPIO PIN 24: SS (inverted) Define pincontrol configurations for the pins as used on that board. (This was tested using a GigaDevice GD25Q64E SPI NOR chip.) Reviewed-by: Yixun Lan Signed-off-by: Alex Elder --- .../boot/dts/spacemit/k1-bananapi-f3.dts | 7 +++++++ arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 20 +++++++++++++++++++ arch/riscv/boot/dts/spacemit/k1.dtsi | 15 ++++++++++++++ 3 files changed, 42 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts index 33ca816bfd4b3..0b0478c6f273d 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -16,6 +16,7 @@ aliases { serial0 = &uart0; i2c2 = &i2c2; i2c8 = &i2c8; + spi3 = &spi3; }; chosen { @@ -258,6 +259,12 @@ dldo7 { }; }; +&spi3 { + pinctrl-0 = <&ssp3_0_cfg>; + pinctrl-names = "default"; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi index 4eef81d583f3d..c4b9f6265a31a 100644 --- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi @@ -516,4 +516,24 @@ pwm14-1-pins { drive-strength = <32>; }; }; + + ssp3_0_cfg: ssp3-0-cfg { + ssp3-0-pins { + pinmux = , /* SCLK */ + , /* MOSI */ + ; /* MISO */ + + bias-disable; + drive-strength = <19>; + power-source = <3300>; + }; + + ssp3-0-frm-pins { + pinmux = ; /* FRM (frame) */ + + bias-pull-up = <0>; + drive-strength = <19>; + power-source = <3300>; + }; + }; }; diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi index af35f9cd64351..990246a3b50ff 100644 --- a/arch/riscv/boot/dts/spacemit/k1.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi @@ -823,6 +823,21 @@ uart9: serial@d4017800 { status = "disabled"; }; + spi3: spi@d401c000 { + compatible = "spacemit,k1-spi"; + reg = <0x0 0xd401c000 0x0 0x30>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&syscon_apbc CLK_SSP3>, + <&syscon_apbc CLK_SSP3_BUS>; + clock-names = "core", "bus"; + resets = <&syscon_apbc RESET_SSP3>; + interrupts = <55>; + dmas = <&pdma 20>, <&pdma 19>; + dma-names = "rx", "tx"; + status = "disabled"; + }; + /* sec_uart1: 0xf0612000, not available from Linux */ }; -- 2.48.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv