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 v6 05/12] ARM: dts: aspeed: anacapa: Add additional EEPROM node for SCM
Date: Tue, 25 Aug 2026 18:47:46 +0800 [thread overview]
Message-ID: <20260825-anacapa-devlop-phase-devicetree-v6-5-9059a2a279ce@gmail.com> (raw)
In-Reply-To: <20260825-anacapa-devlop-phase-devicetree-v6-0-9059a2a279ce@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>
---
.../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 075ac39f369f..d2b4855ff1ad 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 @@ / {
model = "Facebook Anacapa BMC";
};
+// 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 {
bus-frequency = <2000000>;
gpio-line-names =
--
2.34.1
next prev parent reply other threads:[~2026-08-26 0:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-25 10:47 [PATCH v6 00/12] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 01/12] dt-bindings: arm: aspeed: Add Anacapa EVT1 EVT2 DVT board Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 02/12] ARM: dts: aspeed: anacapa: Add EVT1 devicetree and point wrapper to it Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 03/12] ARM: dts: aspeed: anacapa: Add EVT2 devicetree inheriting EVT1 Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 04/12] ARM: dts: aspeed: anacapa: Add DVT devicetree inheriting EVT2 Colin Huang via B4 Relay
2026-08-25 10:47 ` Colin Huang via B4 Relay [this message]
2026-08-25 10:47 ` [PATCH v6 06/12] ARM: dts: aspeed: anacapa: Add eeprom device node for NFC adaptor board Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 07/12] ARM: dts: aspeed: anacapa: Align PDB fan GPIO numbering Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 08/12] ARM: dts: aspeed: anacapa: Enable MCTP and FRU for NIC Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 09/12] ARM: dts: aspeed: anacapa: evt2: Add shunt resistor values for HSC monitors Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 10/12] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 11/12] ARM: dts: aspeed: anacapa: Simplify leakage GPIO line names Colin Huang via B4 Relay
2026-08-25 10:47 ` [PATCH v6 12/12] ARM: dts: aspeed: anacapa: Add SPI flash VCC supply Colin Huang via B4 Relay
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