The device contains two i2c-connected eeproms holding some product- specific values. One sitting on the mainboard and one on the statically connected backplane.
While the eeprom chips themself have a size of 512 byte, the eeprom data only uses 256 byte each, probably to stay compatible with other models.
Signed-off-by: Heiko Stuebner heiko@sntech.de Link: https://lore.kernel.org/r/20240810211438.286441-3-heiko@sntech.de
[ upstream commit: da6f4130234448122fe3e66c8116f7d9eea8a5c7 ]
(cherry picked from commit 0b3109708caf5002ba188ae28eae9ce46b2c39b4) Reviewed-by: Kever Yang kever.yang@rock-chips.com --- .../src/arm64/rockchip/rk3568-qnap-ts433.dts | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts index 90d8d526629..e601d9271ba 100644 --- a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts +++ b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts @@ -454,6 +454,26 @@ reg = <0x51>; wakeup-source; }; + + /* eeprom for vital-product-data on the mainboard */ + eeprom@54 { + compatible = "giantec,gt24c04a", "atmel,24c04"; + reg = <0x54>; + label = "VPD_MB"; + num-addresses = <2>; + pagesize = <16>; + read-only; + }; + + /* eeprom for vital-product-data on the backplane */ + eeprom@56 { + compatible = "giantec,gt24c04a", "atmel,24c04"; + reg = <0x56>; + label = "VPD_BP"; + num-addresses = <2>; + pagesize = <16>; + read-only; + }; };
&mdio0 {