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charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260805-anacapa-devlop-phase-devicetree-v4-5-5d67e0efa6c5@gmail.com> References: <20260805-anacapa-devlop-phase-devicetree-v4-0-5d67e0efa6c5@gmail.com> In-Reply-To: <20260805-anacapa-devlop-phase-devicetree-v4-0-5d67e0efa6c5@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery 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 X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785934963; l=1250; i=u8813345@gmail.com; s=20260202; h=from:subject:message-id; bh=NAF+xcmhfBdWvCk+Ea9KmPCdarcFxDgMq2cQBYIvfaY=; b=wpqf0DC+1LYoo74qwFuJLHClCkzNFOqzu9etJpRAXMv19z6UtEFsANYU7piTdC53+d2rvOpU9 ELG5mCU+j7QAQmdgL6n//ZCOtfQ4pb/yTyh9KNGmWK8vfT0Xu05wZ9k X-Developer-Key: i=u8813345@gmail.com; a=ed25519; pk=Zlg0WqpCw4qbswOqamTBTXIchwR/3SnYZpy7rjaGMdQ= X-Endpoint-Received: by B4 Relay for u8813345@gmail.com/20260202 with auth_id=761 X-Original-From: Colin Huang Reply-To: u8813345@gmail.com From: Colin Huang 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 --- .../boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dts index 4a6ae7c6cbf8..1901a325c72c 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dts @@ -8,6 +8,20 @@ / { compatible = "facebook,anacapa-bmc-evt2", "aspeed,ast2600"; }; +// SCM +&i2c9 { + + // SCM FRU + // | DC-SCM Rev | Slave address of eeprom | + // |-------------------|--------------------------| + // | Rev B | 0x50 | + // | Rev C/D/E/F/above | 0x51 | + eeprom@51 { + compatible = "atmel,24c128"; + reg = <0x51>; + }; +}; + &sgpiom0 { ngpios = <128>; bus-frequency = <2000000>; -- 2.34.1