From: Troy Mitchell <troy.mitchell@linux.spacemit.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@kernel.org>,
Troy Mitchell <troy.mitchell@linux.spacemit.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>
Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
spacemit@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] riscv: defconfig: Enable AT24 EEPROM and ONIE TLV layout
Date: Thu, 05 Nov 2026 08:23:49 +0000 [thread overview]
Message-ID: <20261105-k3-com260-module-sd-nor-mac-v1-4-138b39d74602@linux.spacemit.com> (raw)
In-Reply-To: <20261105-k3-com260-module-sd-nor-mac-v1-0-138b39d74602@linux.spacemit.com>
The OrangePi RV2 and R2S device trees take the Ethernet MAC address from
the ONIE TLV data in an AT24 EEPROM, and the K3 CoM260 module stores its
MAC address the same way. Without the EEPROM driver and the ONIE TLV
layout, the MAC address lookup keeps returning -EPROBE_DEFER and the
Ethernet controller never probes unless the bootloader passes a MAC
address in the device tree.
Enable both drivers as built-in so the MAC address is available as soon
as the Ethernet driver probes, including for network root file systems.
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
arch/riscv/configs/defconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
index 04ae305d5511..a76f801d8eed 100644
--- a/arch/riscv/configs/defconfig
+++ b/arch/riscv/configs/defconfig
@@ -276,6 +276,8 @@ CONFIG_PHY_STARFIVE_JH7110_DPHY_RX=m
CONFIG_PHY_STARFIVE_JH7110_PCIE=m
CONFIG_PHY_STARFIVE_JH7110_USB=m
CONFIG_LIBNVDIMM=y
+CONFIG_NVMEM_LAYOUT_ONIE_TLV=y
+CONFIG_EEPROM_AT24=y
CONFIG_NVMEM_SUNXI_SID=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
--
2.56.0
next prev parent reply other threads:[~2026-11-05 8:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-05 8:23 [PATCH 0/5] riscv: dts: spacemit: k3-com260: Describe SD card, SPI NOR and MAC Troy Mitchell
2026-11-05 8:23 ` [PATCH 1/5] riscv: dts: spacemit: k3-com260-ifx: Drop wrong SD card vmmc-supply Troy Mitchell
2026-11-05 8:23 ` [PATCH 2/5] riscv: dts: spacemit: k3-com260: Move SD card to the module Troy Mitchell
2026-11-05 8:23 ` [PATCH 3/5] riscv: dts: spacemit: k3-com260: Add SPI NOR flash Troy Mitchell
2026-11-05 8:23 ` Troy Mitchell [this message]
2026-11-05 10:42 ` [PATCH 4/5] riscv: defconfig: Enable AT24 EEPROM and ONIE TLV layout E Shattow
2026-11-05 14:20 ` Troy Mitchell
2026-11-05 8:23 ` [PATCH 5/5] riscv: dts: spacemit: k3-com260: Set Ethernet MAC from EEPROM Troy Mitchell
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