Hello Sergey, > From: Sergey Shtylyov, Sent: Tuesday, September 26, 2023 6:13 PM > > Hello! > > You missed a colon after rswitch. Oops! I'll fix this on v3. > And historically we used simpler prefixes, like just sh_eth or ravb... I see. So, I'll fix the subject as "rswitch: Fix PHY station management clock setting". Best regards, Yoshihiro Shimoda > On 9/26/23 11:11 AM, Yoshihiro Shimoda wrote: > > > Fix the MPIC.PSMCS value following the programming example in the > > section 6.4.2 Management Data Clock (MDC) Setting, Ethernet MAC IP, > > S4 Hardware User Manual Rev.1.00. > > > > The value is calculated by > > MPIC.PSMCS = clk[MHz] / (MDC frequency[MHz] * 2) - 1 > > with the input clock frequency from clk_get_rate() and MDC frequency > > of 2.5MHz. Otherwise, this driver cannot communicate PHYs on the R-Car > > S4 Starter Kit board. > > > > Fixes: 3590918b5d07 ("net: ethernet: renesas: Add support for "Ethernet Switch"") > > Reported-by: Tam Nguyen <tam.nguyen.xa@xxxxxxxxxxx> > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> > > Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> > [...] > > MBR, Sergey