From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=144.76.98.110 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792800005; b=SU5GSMWmbWsSJDCjDZxYK/JUU2QcqKTej7P8bV5AUOfwi32OKbXrNA4c3bCE1jf8jE6b znIb4BIEJacgLSOiaHb3Sip1LOr3RQDrGIBI8gg/WijIumjM9zmEBiV+N8DNjH+fX8VM5 YJTZRRN+KRA8/8URGWx4SesubASRoygOBLDKDTs1yhN7Zd61JfYqduVXAJMs/UxBog4or aPD6q7IY3qXW9gtNBmNZ1Uwgc58gdAaYKlmaaNsDJugZGnzBDmTdqOYOMBKZlJZAV8c9q kyk1HRG0Vfvd2GOXAG8e2dZg0527Xwp1lkZJMdTI3nZCyI2eQYAF0LAo6wx8kVgPpRA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792800005; h=DMARC-Filter:DKIM-Signature:Received:From:To:Cc:Subject:Date: Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=RVoXlCSb6jIMaGtRjcozIyYGAhMCZqne31Hnbkv4d2I=; b=t3QbjK7yQSfebetokd8R/I5FmA6XnNoQfFXsMqTdmu5k8Ac2qHSpa6ZTeGxxoML3Q839 l+1YvyjN+Z4Jbu0sBgRmgYUIK3BqKAvyWocFm9sLSbJsxuDdznuqR1kH0urX5J4roP/vh qwpAq0tsu86oVRZKXW6Pb5U/IqNNpsjdIkgnr6u2LbwF4+eaywuNt468OfYvGn4YUOIhb ikcgPa64irYsOqHY4a2Qu5i+qpX0I8vfAdXtLudigx0OOOCeplWSjB9ST9g8DXXu1V5Dv qsTZxb72/pSI+6fQmK5J+n4YPPa6nrp68r7DlGRIqL99xus+CEf44qEDqcnkzMJxeyg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=rojer.me; spf=pass smtp.mailfrom=rojer.me; dkim=pass header.d=rojer.me header.i=@rojer.me header.a=rsa-sha256 header.s=main header.b=j0bVKA1e; arc=none smtp.remote-ip=144.76.98.110 Received: from mail1.rojer.cloud (mail1.rojer.cloud [144.76.98.110]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DED5B606A31F; Sat, 24 Oct 2026 00:00:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org DED5B606A31F Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rojer.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rojer.me Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=rojer.me header.i=@rojer.me header.a=rsa-sha256 header.s=main header.b=j0bVKA1e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rojer.me; s=main; t=1792800001; bh=qvU369dgJvWvyI9h764kYcAsK2/h8+Rf6mBdDUM83RU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j0bVKA1em2H2nHaOheBGsJ77Q7+5+oW6aioIXy1KOwEcUyGeiJehGAvbJX8GUdW1e cl8RKykMcsQrYvTKTSqAZMaK98Tx+qtBjiYhGjULLO4ToEjPV/r0kYL3+vZokTDk/0 QFTU2crl7GDNR/LB62sYUolkYsEY8LqjI39TK0N2lEQB1uvmDoGL12Ajci2nQri20y pr4DXKLRlJluTRQ/dTE0GG1geUaK602Y9WfwyRAWH2RwGPXXnaYQ4FsEh6r4UJ48dt b4EtJ4dX6mNUsokpfqfz2LdbmOt87x4NkAVW/dPOJdf4MHHoOBd9F93xuGLGWigPLx 9Z44rmqI/wWyQ== Received: from nbf.lan (212-5-142-134.ip.btc-net.bg [212.5.142.134]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail1.rojer.cloud (Postfix) with ESMTPSA id 7B9BE1271E1; Sat, 24 Oct 2026 00:00:01 +0000 (UTC) From: Deomid rojer Ryabkov To: Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Sergey Bostandzhyan , Jensen Huang , Deomid rojer Ryabkov Subject: [PATCH 1/2] arm64: dts: rockchip: Fix VCCIO4/VCCIO6 supplies on NanoPi R2S Plus Date: Sat, 24 Oct 2026 02:59:58 +0300 Message-ID: <20261023235959.2988087-2-rojer@rojer.me> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261023235959.2988087-1-rojer@rojer.me> References: <20261023235959.2988087-1-rojer@rojer.me> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The NanoPi R2S Plus inherits its io-domain supplies from the NanoPi R2S, but the two boards are wired differently. From sheet 6 of the schematics: NanoPi R2S (NanoPi-R2S-V1.1-2009-Schematic.pdf): VCCIO4 (U12) = VDD_PHY_IO VCCIO6 (H6) = VCC_IO_33 NanoPi R2S Plus (NanoPi_R2S_Plus_2309_SCH.PDF): VCCIO4 (U12) = VCC_IO_33 VCCIO6 (H6) = VCC_18 rk3328-nanopi-r2.dtsi describes the R2S. On the R2S Plus this leaves the VCCIO4 domain configured for 1.8V while supplied with 3.3V, and the VCCIO6 domain, which carries the M.2 E-key SDIO signals, configured for 3.3V while supplied with 1.8V; the latter prevents the optional RTL8822CS Wi-Fi module from initialising at all. Describe the actual supplies. The vendor's own kernel uses the same values [1], although there they come from a .dtsi shared by the whole NanoPi R2 family, so the schematics above are the reference. Tested on an R2S Plus: Ethernet still links at 1Gbps and the SDIO Wi-Fi module enumerates. [1] https://github.com/friendlyarm/kernel-rockchip/blob/9238df9d21e835bba35c8ba5248784387936cb2e/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2-common.dtsi#L425-L435 Fixes: b8c028782922 ("arm64: dts: rockchip: Add DTS for FriendlyARM NanoPi R2S Plus") Signed-off-by: Deomid rojer Ryabkov --- arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts index 4eff0503928..6ba4a74cb1f 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts @@ -29,3 +29,8 @@ &emmc { pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>; status = "okay"; }; + +&io_domains { + vccio4-supply = <&vcc_io_33>; + vccio6-supply = <&vcc_18>; +}; -- 2.53.0