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Date: Fri, 17 Dec 2021 02:53:15 +0000 From: KARL_TSOU (鄒磊) <KARL_TSOU@...QCONN.COM> To: Andrew Lunn <andrew@...n.ch> CC: "woojung.huh@...rochip.com" <woojung.huh@...rochip.com>, "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>, "vivien.didelot@...il.com" <vivien.didelot@...il.com>, "f.fainelli@...il.com" <f.fainelli@...il.com>, "olteanv@...il.com" <olteanv@...il.com>, "davem@...emloft.net" <davem@...emloft.net>, "kuba@...nel.org" <kuba@...nel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: [PATCH] net: dsa: microchip: Add supported ksz9897 port6 The Microchip switch ksz9897 support 7 physical port, port 0/1/2/3/4 connect to standard RJ45, port5 connect to PHY via MII to CPU and port6 connect to PHY via RMII (PHY ksz8081) on my custom board. I am facing a problem that I am not able to verify port6 via ping command even though the link is up, port 0/1/2/3/4 are all works fine by verifying with ping command expect port6 When I go through port initialization code, a "if condition" below that aren't included port6 initialization. dev->phy_port_cnt = 5 # This allows port 0/1/2/3/4 but not 6 if (port < dev->phy_port_cnt) # Add one more condition if port is not cpu port if (port < dev->phy_port_cnt || !cpu_port) # Add a if condition checking and updating for specified product and port number if (dev->chip_id == 0x00989700 && i == 6) Thanks -Karl From: Andrew Lunn <andrew@...n.ch> Sent: Thursday, December 16, 2021 6:17 PM To: KARL_TSOU (鄒磊) <KARL_TSOU@...QCONN.COM> Cc: woojung.huh@...rochip.com <woojung.huh@...rochip.com>; UNGLinuxDriver@...rochip.com <UNGLinuxDriver@...rochip.com>; vivien.didelot@...il.com <vivien.didelot@...il.com>; f.fainelli@...il.com <f.fainelli@...il.com>; olteanv@...il.com <olteanv@...il.com>; davem@...emloft.net <davem@...emloft.net>; kuba@...nel.org <kuba@...nel.org>; netdev@...r.kernel.org <netdev@...r.kernel.org> Subject: Re: [PATCH] net: dsa: microchip: Add supported ksz9897 port6 On Thu, Dec 16, 2021 at 09:24:13AM +0000, KARL_TSOU (鄒磊) wrote: > This fix driver ksz9897 port6 with PHY ksz8081 by hardware setup Please explain in more details what the problem is you are fixing. It is not clear from the code. Thanks Andrew
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