[PATCH v2] arm64: dts: imx8mm: imx8mp: Update EEPROM with nWP GPIO, label and layout
From: Marek Vasut <hidden>
Date: 2026-09-08 22:30:30
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Describe ID EEPROM nWP GPIO, label and nvmem layout. The i.MX8MM eDM SBC and i.MX8MP eDM SBC nvmem layout is almost identical, except for length of product-name@32 field, which is 19 Bytes on the Mini and 24 Bytes on the Plus. Signed-off-by: Marek Vasut <redacted> --- 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 --- V2: Fix wifi@1200 typo --- .../freescale/imx8mm-data-modul-edm-sbc.dts | 56 ++++++++ .../freescale/imx8mp-data-modul-edm-sbc.dts | 128 ++++++++++++++++++ 2 files changed, 184 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
index df857de0375cf..cb76471440433 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts@@ -431,7 +431,63 @@ usb-hub@2c { eeprom: eeprom@50 { compatible = "atmel,24c32"; reg = <0x50>; + label = "dmo-board-info"; pagesize = <32>; + wp-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + company-name@24 { + reg = <0x24 0xd>; + }; + + product-name@32 { + reg = <0x32 0x13>; + }; + + board-revision@4b { + reg = <0x4b 0x3>; + }; + + serial-number@4f { + reg = <0x4f 0x8>; + }; + + manufacturing-date@70 { + reg = <0x70 0xa>; + }; + + test-date@7b { + reg = <0x7b 0xa>; + }; + + product-number@86 { + reg = <0x86 0x8>; + }; + + board-variant@9a { + reg = <0x9a 0x9>; + }; + + company-acronym@a4 { + reg = <0xa4 0x3>; + }; + + mac-address@b0 { + reg = <0xb0 0x6>; + }; + + board-id@100 { + reg = <0x100 0x4>; + }; + + wifi-id@120 { + reg = <0x120 0x4>; + }; + }; }; rtc: rtc@68 {
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts b/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts
index c284edfa1f4c8..4614a0de07906 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc.dts@@ -421,14 +421,142 @@ tpm: tpm@2e { eeprom900: eeprom@50 { /* board rev.900 */ compatible = "atmel,24c32"; reg = <0x50>; + label = "dmo-board-info"; pagesize = <32>; + wp-gpios = <&gpio3 14 GPIO_ACTIVE_LOW>; status = "disabled"; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + company-name@24 { + reg = <0x24 0xd>; + }; + + product-name@32 { + reg = <0x32 0x18>; + }; + + board-revision@4b { + reg = <0x4b 0x3>; + }; + + serial-number@4f { + reg = <0x4f 0x8>; + }; + + manufacturing-date@70 { + reg = <0x70 0xa>; + }; + + test-date@7b { + reg = <0x7b 0xa>; + }; + + product-number@86 { + reg = <0x86 0x8>; + }; + + board-variant@9a { + reg = <0x9a 0x9>; + }; + + company-acronym@a4 { + reg = <0xa4 0x3>; + }; + + eeprom900mac: mac-address@b0 { + reg = <0xb0 0x6>; + }; + + board-id@100 { + reg = <0x100 0x4>; + }; + + wifi-id@120 { + reg = <0x120 0x4>; + }; + + board-lvds-id@140 { + reg = <0x140 0x4>; + }; + + camera-id@160 { + reg = <0x160 0x4>; + }; + }; }; eeprom902: eeprom@51 { /* board rev.902 */ compatible = "atmel,24c32"; reg = <0x51>; + label = "dmo-board-info"; pagesize = <32>; + wp-gpios = <&gpio3 14 GPIO_ACTIVE_LOW>; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + company-name@24 { + reg = <0x24 0xd>; + }; + + product-name@32 { + reg = <0x32 0x18>; + }; + + board-revision@4b { + reg = <0x4b 0x3>; + }; + + serial-number@4f { + reg = <0x4f 0x8>; + }; + + manufacturing-date@70 { + reg = <0x70 0xa>; + }; + + test-date@7b { + reg = <0x7b 0xa>; + }; + + product-number@86 { + reg = <0x86 0x8>; + }; + + board-variant@9a { + reg = <0x9a 0x9>; + }; + + company-acronym@a4 { + reg = <0xa4 0x3>; + }; + + eeprom902mac: mac-address@b0 { + reg = <0xb0 0x6>; + }; + + board-id@100 { + reg = <0x100 0x4>; + }; + + wifi-id@120 { + reg = <0x120 0x4>; + }; + + board-lvds-id@140 { + reg = <0x140 0x4>; + }; + + camera-id@160 { + reg = <0x160 0x4>; + }; + }; }; rtc: rtc@68 {
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2.53.0