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[89.182.137.143]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45055d36dacsm5398891f8f.32.2026.05.05.09.06.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 May 2026 09:06:27 -0700 (PDT) From: Andre Heider To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 2/6] riscv: dts: spacemit: k1-musepi-pro: add 24c04 eeprom Date: Tue, 5 May 2026 18:06:16 +0200 Message-ID: <20260505160623.1369347-3-a.heider@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260505160623.1369347-1-a.heider@gmail.com> References: <20260505160623.1369347-1-a.heider@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260505_090630_151613_B5786B4D X-CRM114-Status: GOOD ( 10.43 ) 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 Enable i2c2 and add the connected 24c04 EEPROM. It contains an ONIE TLV table: => tlv_eeprom TLV: 0 [ 12.162] TlvInfo Header: [ 12.162] Id String: TlvInfo [ 12.165] Version: 1 [ 12.168] Total Length: 58 [ 12.171] TLV Name Code Len Value [ 12.175] -------------------- ---- --- ----- [ 12.179] Product Name 0x21 16 k1-x_MUSE-Pi-Pro [ 12.184] Serial Number 0x23 17 BPMIMXXXXXXXXXXXX [ 12.189] Unknown 0x41 1 0x02 [ 12.194] Base MAC Address 0x24 6 FE:FE:FE:XX:XX:XX [ 12.199] MAC Addresses 0x2A 2 2 [ 12.203] CRC-32 0xFE 4 0x395ECD34 [ 12.207] Checksum is valid. (With 0x41 as TLV_CODE_DDR_CSNUM) Signed-off-by: Andre Heider --- .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 35 ++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts index 07eef3274192c..8bb85b5ba1943 100644 --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts @@ -17,6 +17,7 @@ / { aliases { ethernet0 = ð0; serial0 = &uart0; + i2c2 = &i2c2; i2c8 = &i2c8; }; @@ -92,6 +93,38 @@ &pdma { status = "okay"; }; +&i2c2 { + pinctrl-0 = <&i2c2_0_cfg>; + pinctrl-names = "default"; + status = "okay"; + + eeprom@50 { + compatible = "atmel,24c02"; + reg = <0x50>; + vcc-supply = <&buck3_1v8>; /* EEPROM_VCC1V8 */ + pagesize = <8>; + read-only; + size = <256>; + + nvmem-layout { + compatible = "onie,tlv-layout"; + + product-name { + }; + + serial-number { + }; + + mac-address { + #nvmem-cell-cells = <1>; + }; + + num-macs { + }; + }; + }; +}; + &i2c8 { pinctrl-0 = <&i2c8_cfg>; pinctrl-names = "default"; @@ -126,7 +159,7 @@ buck2 { regulator-always-on; }; - buck3 { + buck3_1v8: buck3 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <1800000>; regulator-ramp-delay = <5000>; -- 2.53.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv