On 2022/12/9 5:15, Linus Walleij wrote: > Hi William, > > thanks for your patch! > > On Wed, Dec 7, 2022 at 2:17 PM William Qiu <william.qiu@xxxxxxxxxxxxxxxx> wrote: > >> + starfive,sys-syscon = <&sys_syscon 0x14 0x1a 0x7c000000>; > (...) >> + starfive,sys-syscon = <&sys_syscon 0x9c 0x1 0x3e>; > > These are registster offsets and shifts. Don't define such stuff in your device > tree, use #defines in the code and just provide the phandle. > Hi Linus, I'm sorry to bother you, but as for the definition of syscon, after discussing with my colleagues, we think it is easier to distinguish SDIO0 and SDIO1 by defining it in the device tree, and the code compatibility is better. I expected to discuss this issue with you in V2,, but I am not sure whether you have seen V2, so I can only ask for your advice in V1. Best Regards William Qiu > Yours, > Linus Walleij