On 09/08/2024 11:55, 郑豪威 wrote: >> >>>>> + description: Enables fractional-N division. Currently, >>>>> + only LS2K1500 and LS2K2000 support this feature. >>>>> + >>>>> + rts-invert: >>>>> + description: Inverts the RTS value in the MCR register. >>>>> + This should be used on Loongson-3 series CPUs, Loongson-2K >>>>> + series CPUs, and Loongson LS7A bridge chips. >>>>> + >>>>> + dtr-invert: >>>>> + description: Inverts the DTR value in the MCR register. >>>>> + This should be used on Loongson-3 series CPUs, Loongson-2K >>>>> + series CPUs, and Loongson LS7A bridge chips. >>>>> + >>>>> + cts-invert: >>>>> + description: Inverts the CTS value in the MSR register. >>>>> + This should be used on Loongson-2K0500, Loongson-2K1000, >>>>> + and Loongson LS7A bridge chips. >>>>> + >>>>> + dsr-invert: >>>>> + description: Inverts the DSR value in the MSR register. >>>>> + This should be used on Loongson-2K0500, Loongson-2K1000, >>>>> + and Loongson LS7A bridge chips. >> Same questions for all these. Why choosing invert is a board level >> decision? If it "should be used" then why it is not used always? >> > Because these features are not applicable to all chips, such as > 'fractional-division', Hm? > > which is currently supported only by 2K1500 and 2K2000, and for > Loongson-3 series These are SoCs. Compatible defines that. Please align with your colleagues, because *we talked about this* already. Best regards, Krzysztof
