[PATCH AUTOSEL 5.15 25/29] riscv: dts: sifive unmatched: Expose the board ID eeprom
From: Sasha Levin <sashal@kernel.org>
Date: 2021-12-21 01:59:36
Also in:
linux-riscv, lkml, stable
Subsystem:
risc-v architecture, risc-v misc soc support, the rest · Maintainers:
Paul Walmsley, Palmer Dabbelt, Albert Ou, Conor Dooley, Linus Torvalds
From: Vincent Pelletier <redacted> [ Upstream commit 8120393b74b31bbaf293f59896de6b0d50febc48 ] 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 <redacted> Signed-off-by: Palmer Dabbelt <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 a788b99638af8..7ea1c8da5fb2e 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts@@ -63,6 +63,16 @@ 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>;
--
2.34.1