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* [PATCH] arm64: dts: imx8mn: Add ifm VHIP4 EvalBoard configuration EEPROM layout DTOs
@ 2026-08-25 13:57 Marek Vasut
  2026-08-25 14:02 ` sashiko-bot
  0 siblings, 1 reply; 4+ messages in thread
From: Marek Vasut @ 2026-08-25 13:57 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: Marek Vasut, Conor Dooley, Fabio Estevam, Frank Li,
	Krzysztof Kozlowski, Pengutronix Kernel Team, Rob Herring,
	Sascha Hauer, devicetree, imx, linux-kernel

Add DT overlays which describe configuration EEPROM VHIP section,
for VHIP section v1.0.0.0, v1.1.0.0, v2.0.0.0, used on ifm VHIP4
EvalBoard .

With the DTO applied, the VHIP section fields become accessible via
sysfs nvmem interface. The entire EEPROM is accessible via the nvmem
interface as well.

Signed-off-by: Marek Vasut <marex@nabladev.com>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Frank Li <Frank.Li@nxp.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: devicetree@vger.kernel.org
Cc: imx@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
NOTE: Depends on https://lore.kernel.org/all/20260810213456.1268831-2-marex@nabladev.com/
---
 arch/arm64/boot/dts/freescale/Makefile        |  17 ++-
 .../imx8mn-vhip4-overlay-eeprom-1000.dtso     | 103 +++++++++++++++++
 .../imx8mn-vhip4-overlay-eeprom-1100.dtso     | 103 +++++++++++++++++
 .../imx8mn-vhip4-overlay-eeprom-2000.dtso     | 107 ++++++++++++++++++
 4 files changed, 329 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1000.dtso
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1100.dtso
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-2000.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 95ae85ab4adf5..1215d8f6aa813 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -245,15 +245,25 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony-legacy.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-venice-gw7902.dtb
 
+imx8mn-vhip4-evalboard-v1-overlay-eeprom-1000-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+						      imx8mn-vhip4-overlay-eeprom-1000.dtbo
+imx8mn-vhip4-evalboard-v1-overlay-eeprom-1100-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+						      imx8mn-vhip4-overlay-eeprom-1100.dtbo
 imx8mn-vhip4-evalboard-v1-overlay-ksz8794-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
 						  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtbo
 imx8mn-vhip4-evalboard-v1-overlay-ksz9031-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
 						  imx8mn-vhip4-evalboard-v1-overlay-ksz9031.dtbo
 imx8mn-vhip4-evalboard-v2-overlay-adin1300-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
 						   imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtbo
+imx8mn-vhip4-evalboard-v2-overlay-eeprom-1100-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
+						      imx8mn-vhip4-overlay-eeprom-1100.dtbo
+imx8mn-vhip4-evalboard-v2-overlay-eeprom-2000-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
+						      imx8mn-vhip4-overlay-eeprom-2000.dtbo
 imx8mn-vhip4-evalboard-v2-overlay-ksz8794-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
 						  imx8mn-vhip4-evalboard-v2-overlay-ksz8794.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-vhip4-evalboard-v1.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-eeprom-1000.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-eeprom-1100.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtbo \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz9031.dtb \
@@ -261,8 +271,13 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-vhip4-evalboard-v1.dtb \
 			  imx8mn-vhip4-evalboard-v2.dtb \
 			  imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtb \
 			  imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtbo \
+			  imx8mn-vhip4-evalboard-v2-overlay-eeprom-1100.dtb \
+			  imx8mn-vhip4-evalboard-v2-overlay-eeprom-2000.dtb \
 			  imx8mn-vhip4-evalboard-v2-overlay-ksz8794.dtb \
-			  imx8mn-vhip4-evalboard-v2-overlay-ksz8794.dtbo
+			  imx8mn-vhip4-evalboard-v2-overlay-ksz8794.dtbo \
+			  imx8mn-vhip4-overlay-eeprom-1000.dtbo \
+			  imx8mn-vhip4-overlay-eeprom-1100.dtbo \
+			  imx8mn-vhip4-overlay-eeprom-2000.dtbo
 
 imx8mn-tqma8mqnl-mba8mx-lvds-g133han01-dtbs += imx8mn-tqma8mqnl-mba8mx.dtb imx8mm-tqma8mqml-mba8mx-lvds-g133han01.dtbo
 imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33-dtbs += imx8mn-tqma8mqnl-mba8mx.dtb imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1000.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1000.dtso
new file mode 100644
index 0000000000000..41641c54164f1
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1000.dtso
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+&cfg_eeprom {
+	cfg_eeprom_layout: nvmem-layout {
+		compatible = "fixed-layout";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		vhip-signature@0 {
+			reg = <0x0 0x4>;
+		};
+
+		vhip-version@4 {
+			reg = <0x4 0x4>;
+		};
+
+		vhip-size@8 {
+			reg = <0x8 0x4>;
+		};
+
+		device-serial@c {
+			reg = <0xc 0x10>;
+		};
+
+		order-number@1c {
+			reg = <0x1c 0x20>;
+		};
+
+		article-name@3c {
+			reg = <0x3c 0x20>;
+		};
+
+		article-rev@5c {
+			reg = <0x5c 0x4>;
+		};
+
+		hardware-rev@60 {
+			reg = <0x60 0x4>;
+		};
+
+		product-type@64 {
+			reg = <0x64 0x20>;
+		};
+
+		software-comatibility@84 {
+			reg = <0x84 0x4>;
+		};
+
+		manufacturing-date@88 {
+			reg = <0x88 0x20>;
+		};
+
+		production-order-number@a8 {
+			reg = <0xa8 0x20>;
+		};
+
+		/* Each MAC address is padded to 8 Bytes */
+		cfg_eeprom_mac1: mac-address-1@c8 {
+			reg = <0xc8 0x8>;
+		};
+
+		cfg_eeprom_mac2: mac-address-2@d0 {
+			reg = <0xd0 0x8>;
+		};
+
+		cfg_eeprom_mac3: mac-address-3@d8 {
+			reg = <0xd8 0x8>;
+		};
+
+		cfg_eeprom_mac4: mac-address-4@e0 {
+			reg = <0xe0 0x8>;
+		};
+
+		cfg_eeprom_mac5: mac-address-5@e8 {
+			reg = <0xe8 0x8>;
+		};
+
+		cfg_eeprom_mac6: mac-address-6@f0 {
+			reg = <0xf0 0x8>;
+		};
+
+		cfg_eeprom_mac7: mac-address-7@f8 {
+			reg = <0xf8 0x8>;
+		};
+
+		cfg_eeprom_mac8: mac-address-8@100 {
+			reg = <0x100 0x8>;
+		};
+
+		next-block-offset@108 {
+			reg = <0x108 0x4>;
+		};
+
+		section-crc@10c {
+			reg = <0x10c 0x4>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1100.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1100.dtso
new file mode 100644
index 0000000000000..5f89b1af6874d
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-1100.dtso
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+&cfg_eeprom {
+	cfg_eeprom_layout: nvmem-layout {
+		compatible = "fixed-layout";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		vhip-signature@0 {
+			reg = <0x0 0x4>;
+		};
+
+		vhip-version@4 {
+			reg = <0x4 0x4>;
+		};
+
+		vhip-size@8 {
+			reg = <0x8 0x4>;
+		};
+
+		device-serial@c {
+			reg = <0xc 0x10>;
+		};
+
+		order-number@1c {
+			reg = <0x1c 0x20>;
+		};
+
+		article-name@3c {
+			reg = <0x3c 0x40>;
+		};
+
+		article-rev@7c {
+			reg = <0x7c 0x4>;
+		};
+
+		hardware-rev@80 {
+			reg = <0x80 0x4>;
+		};
+
+		product-type@84 {
+			reg = <0x84 0x20>;
+		};
+
+		software-comatibility@a4 {
+			reg = <0xa4 0x4>;
+		};
+
+		manufacturing-date@a8 {
+			reg = <0xa8 0x20>;
+		};
+
+		production-order-number@c8 {
+			reg = <0xc8 0x20>;
+		};
+
+		/* Each MAC address is padded to 8 Bytes */
+		cfg_eeprom_mac1: mac-address-1@e8 {
+			reg = <0xe8 0x8>;
+		};
+
+		cfg_eeprom_mac2: mac-address-2@f0 {
+			reg = <0xf0 0x8>;
+		};
+
+		cfg_eeprom_mac3: mac-address-3@f8 {
+			reg = <0xf8 0x8>;
+		};
+
+		cfg_eeprom_mac4: mac-address-4@100 {
+			reg = <0x100 0x8>;
+		};
+
+		cfg_eeprom_mac5: mac-address-5@108 {
+			reg = <0x108 0x8>;
+		};
+
+		cfg_eeprom_mac6: mac-address-6@110 {
+			reg = <0x110 0x8>;
+		};
+
+		cfg_eeprom_mac7: mac-address-7@118 {
+			reg = <0x118 0x8>;
+		};
+
+		cfg_eeprom_mac8: mac-address-8@120 {
+			reg = <0x120 0x8>;
+		};
+
+		next-block-offset@128 {
+			reg = <0x128 0x4>;
+		};
+
+		section-crc@12c {
+			reg = <0x12c 0x4>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-2000.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-2000.dtso
new file mode 100644
index 0000000000000..01599bf46ac18
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-overlay-eeprom-2000.dtso
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+&cfg_eeprom {
+	cfg_eeprom_layout: nvmem-layout {
+		compatible = "fixed-layout";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		vhip-signature@0 {
+			reg = <0x0 0x4>;
+		};
+
+		vhip-version@4 {
+			reg = <0x4 0x4>;
+		};
+
+		vhip-size@8 {
+			reg = <0x8 0x4>;
+		};
+
+		section-data-crc@c {
+			reg = <0xc 0x4>;
+		};
+
+		next-block-offset@10 {
+			reg = <0x10 0x4>;
+		};
+
+		section-header-crc@14 {
+			reg = <0x14 0x4>;
+		};
+
+		device-serial@18 {
+			reg = <0x18 0x10>;
+		};
+
+		order-number@28 {
+			reg = <0x28 0x20>;
+		};
+
+		article-name@48 {
+			reg = <0x48 0x40>;
+		};
+
+		article-rev@88 {
+			reg = <0x88 0x4>;
+		};
+
+		hardware-rev@8c {
+			reg = <0x8c 0x4>;
+		};
+
+		product-type@90 {
+			reg = <0x90 0x20>;
+		};
+
+		software-comatibility@b0 {
+			reg = <0xb0 0x4>;
+		};
+
+		manufacturing-date@b4 {
+			reg = <0xb4 0x20>;
+		};
+
+		production-order-number@d4 {
+			reg = <0xd4 0x20>;
+		};
+
+		/* Each MAC address is padded to 8 Bytes */
+		cfg_eeprom_mac1: mac-address-1@f4 {
+			reg = <0xf4 0x8>;
+		};
+
+		cfg_eeprom_mac2: mac-address-2@fc {
+			reg = <0xfc 0x8>;
+		};
+
+		cfg_eeprom_mac3: mac-address-3@104 {
+			reg = <0x104 0x8>;
+		};
+
+		cfg_eeprom_mac4: mac-address-4@10c {
+			reg = <0x10c 0x8>;
+		};
+
+		cfg_eeprom_mac5: mac-address-5@114 {
+			reg = <0x114 0x8>;
+		};
+
+		cfg_eeprom_mac6: mac-address-6@11c {
+			reg = <0x11c 0x8>;
+		};
+
+		cfg_eeprom_mac7: mac-address-7@124 {
+			reg = <0x124 0x8>;
+		};
+
+		cfg_eeprom_mac8: mac-address-8@12c {
+			reg = <0x12c 0x8>;
+		};
+	};
+};
-- 
2.53.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2026-08-25 14:27 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-08-25 13:57 [PATCH] arm64: dts: imx8mn: Add ifm VHIP4 EvalBoard configuration EEPROM layout DTOs Marek Vasut
2026-08-25 14:02 ` sashiko-bot
2026-08-25 14:17   ` Frank Li
2026-08-25 14:27     ` Marek Vasut

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