Hello Jiaxun, > 在2025年1月16日一月 上午10:59,Gregory CLEMENT写道: >> The CM3.5 device used in EyeQ6H SoCs incorrectly reports the status >> for Hardware Cache Initialization (HCI). This commit adds the >> compatible string for the CM to acknowledge this issue, which enables >> the use of the second CPU cluster. >> >> Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx> >> --- >> arch/mips/boot/dts/mobileye/eyeq6h.dtsi | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/arch/mips/boot/dts/mobileye/eyeq6h.dtsi >> b/arch/mips/boot/dts/mobileye/eyeq6h.dtsi >> index >> 1db3c3cda2e395025075387bcb66ea0737fd37f6..c6087bd8ca1d47855b8d93aa7e75e1fed219587b >> 100644 >> --- a/arch/mips/boot/dts/mobileye/eyeq6h.dtsi >> +++ b/arch/mips/boot/dts/mobileye/eyeq6h.dtsi >> @@ -32,6 +32,10 @@ cpu_intc: interrupt-controller { >> #interrupt-cells = <1>; >> }; >> >> + coherency-manager { >> + compatible = "mti,eyeq6-cm"; > > ^ > Maybe compatible = "mti,eyeq6-cm", "mti,mips-cm"; I explicitly makes the compatible "mti,eyeq6-cm" and "mti,mips-cm" mutually exclusive. This allows us to require the reg property only for "mti,mips-cm" and not have to provide it for "mti,eyeq6-cm". Thanks for your prompt feedback, Gregory -- Grégory CLEMENT, Bootlin Embedded Linux and Kernel engineering https://bootlin.com