From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.naobsd.org (sakura.naobsd.org [160.16.200.221]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DA692F6193; Tue, 2 Dec 2025 04:57:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=160.16.200.221 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764651473; cv=none; b=ZRRDLjYtd3pg54mpSrpl+dkDIw3nSHXilLmatfEda5SWMOE6zckPkG05KDXeN5SrJXwzej2uMGjgfj76ZdcPHfMYc8Sj7nKJjlZr1j7w1cwky5bw7LHbaD/XdWaM8YMADiETqm61RZNUrIILQBhQMSrXFxoViO4qk4MxWkT33EM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764651473; c=relaxed/simple; bh=3gJx3AhjLbLSc9eyOBa9zSe8FYvXzVGl+bX5klhjaKk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=d6WyQtojNE4hkyUw+sNdTNZDyvr3iopZQjj2EV1DxVrplGFUCktF8ereq1TQrk96H36Owr2qSgay6MVqEAyOkSIVxfuPQsKyowghSen95AnaDg+JTMyCnIufIqXdfQaf/AaAL23H0sF7AtlQDq1+t67hQcxyJpucZynNj2RRD8Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=radxa.com; spf=fail smtp.mailfrom=radxa.com; arc=none smtp.client-ip=160.16.200.221 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=radxa.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=radxa.com Received: from secure.fukaumi.org ([10.0.0.2]) by mail.naobsd.org (8.14.4/8.14.4/Debian-4.1ubuntu1.1) with ESMTP id 5B24uxmJ007827; Tue, 2 Dec 2025 13:57:03 +0900 From: FUKAUMI Naoki To: heiko@sntech.de Cc: brgl@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, dsimic@manjaro.org, didi.debian@cknow.org, wens@kernel.org, nicolas.frattaroli@collabora.com, detlev.casanova@collabora.com, stephen@radxa.com, sebastian.reichel@collabora.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, FUKAUMI Naoki Subject: [PATCH 4/4] arm64: dts: rockchip: Add EEPROMs for Radxa boards Date: Tue, 2 Dec 2025 04:56:55 +0000 Message-ID: <20251202045655.154543-5-naoki@radxa.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251202045655.154543-1-naoki@radxa.com> References: <20251202045655.154543-1-naoki@radxa.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The BL24C16A EEPROM is found in the schematics for Radxa CM3I, Radxa ROCK 3A, 3B, 5B+, and 5T. [1] [2] [3] [4] [5] The BL24C16F EEPROM is found in the schematic for Radxa ROCK 4D. [6] Add these eeprom nodes. These are designed to have data written during factory programming (regardless of whether data is actually written or not), and we at Radxa permit users to read the data but not write to it. [8] Therefore, we will add a read-only property to the eeprom node. [1] https://dl.radxa.com/cm3i/docs/hw/radxa_cm3i_v1310_schematic.pdf p.8 [2] https://dl.radxa.com/rock3/docs/hw/3a/radxa_rock_3a_v1310_schematic.pdf p.7 [3] https://dl.radxa.com/rock3/docs/hw/3b/Radxa_ROCK_3B_V1.51_SCH.pdf p.35 [4] https://dl.radxa.com/rock5/5b+/docs/hw/radxa_rock5bp_v1.2_schematic.pdf p.29 [5] https://dl.radxa.com/rock5/5t/docs/hw/radxa_rock5t_schematic_v1.2_20250109.pdf p.36 [6] https://dl.radxa.com/rock4/4d/docs/hw/Radxa_ROCK_4D_SCH_V1.12.pdf p.23 [7] https://github.com/radxa/u-boot/blob/next-dev-v2024.10/drivers/misc/radxa-i2c-eeprom.c Signed-off-by: FUKAUMI Naoki --- .../arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi | 10 +++++++++- arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts | 8 ++++++++ arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts | 8 ++++++++ arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 14 ++++++++++++++ .../boot/dts/rockchip/rk3588-rock-5b-plus.dts | 10 ++++++++++ arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts | 10 ++++++++++ 6 files changed, 59 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi index 729e38b9f620..f97a0eb7f7c0 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi @@ -321,7 +321,7 @@ regulator-state-mem { }; }; - vcc_3v3: SWITCH_REG1 { + gpio_vref: vcc_3v3: SWITCH_REG1 { regulator-name = "vcc_3v3"; regulator-always-on; regulator-boot-on; @@ -340,6 +340,14 @@ regulator-state-mem { }; }; }; + + eeprom@50 { + compatible = "belling,bl24c16a", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&gpio_vref>; + }; }; &pinctrl { diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts index 44cfdfeed668..9214e38648f2 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts @@ -532,6 +532,14 @@ regulator-state-mem { }; }; }; + + eeprom@50 { + compatible = "belling,bl24c16a", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&vcc3v3_pmu>; + }; }; &i2c3 { diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts index 3d0c1ccfaa79..69001e453732 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts @@ -480,6 +480,14 @@ regulator-state-mem { }; }; }; + + eeprom@50 { + compatible = "belling,bl24c16a", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&vcc3v3_sys>; + }; }; &i2c5 { diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts index 7023dc326d0e..899a84b1fbf9 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts @@ -682,6 +682,20 @@ hym8563: rtc@51 { }; }; +&i2c6 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c6m3_xfer>; + status = "okay"; + + eeprom@50 { + compatible = "belling,bl24c16f", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&vcc_3v3_s3>; + }; +}; + &mdio0 { rgmii_phy0: ethernet-phy@1 { compatible = "ethernet-phy-id001c.c916"; diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts index 07a840d9b385..30d15c7e860a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts @@ -69,6 +69,16 @@ wwan-wake-n-hog { }; }; +&i2c1 { + eeprom@50 { + compatible = "belling,bl24c16a", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&vcc_3v3_s3>; + }; +}; + &pcie30phy { data-lanes = <1 1 2 2>; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts index 0dd90c744380..425036146b6d 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts @@ -60,6 +60,16 @@ &hdmi_receiver { status = "okay"; }; +&i2c1 { + eeprom@50 { + compatible = "belling,bl24c16a", "atmel,24c16"; + reg = <0x50>; + pagesize = <16>; + read-only; + vcc-supply = <&vcc_3v3_s3>; + }; +}; + &pcie2x1l1 { pinctrl-names = "default"; pinctrl-0 = <&pcie2_1_rst>; -- 2.43.0