Hi Marek, > From: Marek Behún, Sent: Wednesday, October 19, 2022 7:45 PM > > On Wed, 19 Oct 2022 17:50:49 +0900 > Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote: > > > R-Car S4-8 environment board requires to change the host interface > > as SGMII and the host speed as 1000 Mbps because the strap pin was > > other mode, but the SoC/board cannot work on that mode. Also, after > > the SoC initialized the SERDES once, we cannot re-initialized it > > because the initialized procedure seems all black magic... > > Can you tell us which exact mode is configured by the strapping pins? Sure. The port 0 is: CONFIG[0] = 0 0 0 CONFIG[1] = 0 1 0 CONFIG[2] = 0 1 0 So, MACTYPE is SXGMII. > Isn't it sufficient to just set the MACTYPE to SGMII, without > configuring speed? If the host speed was not changed, my environment didn't work. The SERDES of R-Car cannot linkup with the PHY. Best regards, Yoshihiro Shimoda > Marek
