Mark it as read-only as it is factory-programmed with identifying
information, and no executable nor configuration:
- eth MAC address
- board model (PCB version, BoM version)
- board serial number
Accidental modification would cause misidentification which could brick
the board, so marking read-only seem like both a safe and non-constraining
choice.
Signed-off-by: Vincent Pelletier <[email protected]>
---
arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
index 305a086e5207..cf8937708829 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -58,6 +58,16 @@ temperature-sensor@4c {
interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
};
+ eeprom@54 {
+ compatible = "microchip,24c02", "atmel,24c02";
+ reg = <0x54>;
+ vcc-supply = <&vdd_bpro>;
+ label = "board-id";
+ pagesize = <16>;
+ read-only;
+ size = <256>;
+ };
+
pmic@58 {
compatible = "dlg,da9063";
reg = <0x58>;
--
2.33.1