From: Colin Huang <colin.huang2@amd.com>
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>,
Ryan Chen <ryan_chen@aspeedtech.com>,
Billy Tsai <billy_tsai@aspeedtech.com>
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 v8 04/11] ARM: dts: aspeed: anacapa: Add additional EEPROM node for SCM
Date: Wed, 2 Sep 2026 18:21:16 +0800 [thread overview]
Message-ID: <20260902-anacapa-devlop-phase-devicetree-v8-4-69c8eb2a7cda@gmail.com> (raw)
In-Reply-To: <20260902-anacapa-devlop-phase-devicetree-v8-0-69c8eb2a7cda@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.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dtsi b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dtsi
index c43090618c4a..8c4a03a82d44 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dtsi
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-evt2.dtsi
@@ -2,6 +2,20 @@
#include "aspeed-bmc-facebook-anacapa-evt1.dtsi"
+// 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 {
gpio-line-names =
/*in - out */
--
2.34.1
next prev parent reply other threads:[~2026-09-02 10:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 10:21 [PATCH v8 00/11] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Colin Huang
2026-09-02 10:21 ` [PATCH v8 01/11] ARM: dts: aspeed: anacapa: Add EVT1 devicetree and point wrapper to it Colin Huang
2026-09-02 10:21 ` [PATCH v8 02/11] ARM: dts: aspeed: anacapa: Add EVT2 devicetree inheriting EVT1 Colin Huang
2026-09-02 10:21 ` [PATCH v8 03/11] ARM: dts: aspeed: anacapa: Add DVT devicetree inheriting EVT2 Colin Huang
2026-09-02 10:21 ` Colin Huang [this message]
2026-09-02 10:21 ` [PATCH v8 05/11] ARM: dts: aspeed: anacapa: Add eeprom device node for NFC adaptor board Colin Huang
2026-09-02 10:21 ` [PATCH v8 06/11] ARM: dts: aspeed: anacapa: Align PDB fan GPIO numbering Colin Huang
2026-09-02 10:21 ` [PATCH v8 07/11] ARM: dts: aspeed: anacapa: Enable MCTP and FRU for NIC Colin Huang
2026-09-02 10:21 ` [PATCH v8 08/11] ARM: dts: aspeed: anacapa: evt2: Add shunt resistor values for HSC monitors Colin Huang
2026-09-02 10:21 ` [PATCH v8 09/11] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander Colin Huang
2026-09-02 10:21 ` [PATCH v8 10/11] ARM: dts: aspeed: anacapa: Simplify leakage GPIO line names Colin Huang
2026-09-02 10:21 ` [PATCH v8 11/11] ARM: dts: aspeed: anacapa: Add SPI flash VCC supply Colin Huang
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