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From: Colin Huang via B4 Relay <devnull+u8813345.gmail.com@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Joel Stanley <joel@jms.id.au>,
	 Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	 colin.huang2@amd.com, Colin Huang <u8813345@gmail.com>
Subject: [PATCH v3 5/9] ARM: dts: aspeed: anacapa: add additional EEPROM node for SCM
Date: Tue, 02 Jun 2026 21:25:00 +0800	[thread overview]
Message-ID: <20260602-anacapa-devlop-phase-devicetree-v3-5-7c93c5df8d9b@gmail.com> (raw)
In-Reply-To: <20260602-anacapa-devlop-phase-devicetree-v3-0-7c93c5df8d9b@gmail.com>

From: Colin Huang <u8813345@gmail.com>

The SCM FRU EEPROM I2C address differs between SCM revisions:
- Rev B uses address 0x50
- Rev C/D/E/F and later use address 0x51

Add an additional AT24C128 EEPROM node at 0x51 on i2c9 so the same
device tree can support multiple SCM revisions.

Signed-off-by: Colin Huang <u8813345@gmail.com>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt1.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt1.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt1.dts
index 9314ee493c61..1d2f46e83be8 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt1.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt1.dts
@@ -593,11 +593,20 @@ &i2c9 {
 	status = "okay";
 
 	// SCM FRU
+	// | DC-SCM Rev        | Slave address of eeprom  |
+	// |-------------------|--------------------------|
+	// | Rev B             | 0x50                     |
+	// | Rev C/D/E/F/above | 0x51                     |
 	eeprom@50 {
 		compatible = "atmel,24c128";
 		reg = <0x50>;
 	};
 
+	eeprom@51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+
 	// BSM FRU
 	eeprom@56 {
 		compatible = "atmel,24c64";

-- 
2.34.1




  parent reply	other threads:[~2026-06-02 13:25 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-02 13:24 [PATCH v3 0/9] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Colin Huang via B4 Relay
2026-06-02 13:24 ` [PATCH v3 1/9] dt-bindings: arm: aspeed: add Anacapa EVT1 EVT2 DVT board Colin Huang via B4 Relay
2026-06-02 16:20   ` Conor Dooley
2026-06-02 13:24 ` [PATCH v3 2/9] ARM: dts: aspeed: anacapa: add EVT1 devicetree and point wrapper to it Colin Huang via B4 Relay
2026-06-02 13:24 ` [PATCH v3 3/9] ARM: dts: aspeed: anacapa: add EVT2 devicetree inheriting EVT1 Colin Huang via B4 Relay
2026-06-02 13:24 ` [PATCH v3 4/9] ARM: dts: aspeed: anacapa: add DVT devicetree inheriting EVT2 Colin Huang via B4 Relay
2026-06-02 13:25 ` Colin Huang via B4 Relay [this message]
2026-06-02 13:25 ` [PATCH v3 6/9] ARM: dts: aspeed: anacapa: Add eeprom device node for NFC adaptor board Colin Huang via B4 Relay
2026-06-02 13:25 ` [PATCH v3 7/9] ARM: dts: aspeed: anacapa: Align PDB fan GPIO numbering Colin Huang via B4 Relay
2026-06-02 13:25 ` [PATCH v3 8/9] ARM: dts: aspeed: anacapa: Enable MCTP and FRU for NIC Colin Huang via B4 Relay
2026-06-02 13:25 ` [PATCH v3 9/9] ARM: dts: aspeed: anacapa: evt2: add shunt resistor values for HSC monitors Colin Huang via B4 Relay
2026-06-10 13:04 ` [PATCH v3 0/9] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Andrew Jeffery
2026-06-10 15:16   ` Colin Huang
2026-06-11  4:06 ` Andrew Jeffery

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