SGMII3 additional connection problems P2020

gyosunshim — Thu, 19 May 2016 07:39:09 GMT

Hi All,

Use the P2020RDB board and the board design.

When you add one more to the VSC8221 Serdes lane 3 below, we will ask for modifications or side u-boot linux kernel.

Thank you for always.

Best regards,

gyosun.

Re: SGMII3 additional connection problems P2020

Pavel — Thu, 26 May 2016 12:05:06 GMT

The P2020 cfg_IO_ports[0:3] pins configure signal multiplexing. See the Table 1-2 of the P2020 Reference Manual.

NXP SDK 1.9 u-boot for P2020 contains initialization for the VSC7385 switch only. Add code in u-boot if VSC8221 initialization is needed.

Change the P2020 .dts file for setting SGMII mode eTSEC.

Have a great day,

Pavel Chubakov

Re: SGMII3 additional connection problems P2020

gyosunshim — Fri, 29 Jul 2016 13:29:13 GMT

Thank you for answer.

It changed the dts file as shown below.

enet2: ethernet@26000 {

#address-cells = <1>;

#size-cells = <1>;

cell-index = <2>;

device_type = "network";

model = "eTSEC";

compatible = "gianfar";

reg = <0x26000 0x1000>;

ranges = <0x0 0x26000 0x1000>;

local-mac-address = [ 00 00 00 00 00 00 ];

interrupts = <31 2 32 2 33 2>;

interrupt-parent = <&mpic>;

tbi-handle = <&tbi1>;

phy-handle = <&phy1>;

phy-connection-type = "sgmii";

ptimer-handle = <&ptp_timer>;

mdio@520 {

#address-cells = <1>;

#size-cells = <0>;

compatible = "fsl,gianfar-tbi";

reg = <0x520 0x20>;

tbi1: tbi-phy@11 {

reg = <0x11>;

device_type = "tbi-phy";

};

u-boot board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c has also changed the file, as shown below.

#ifdef CONFIG_TSEC3

SET_STD_TSEC_INFO(tsec_info[num], 3);

if (is_serdes_configured(SGMII_TSEC3)) {

printf("eTSEC3 is in sgmii mode.\n");

tsec_info[num].flags |= TSEC_SGMII;

}

num++;

#endif

The following message during boot is OK.

Net: eTSEC2 is in sgmii mode.

eTSEC3 is in sgmii mode.

No address specified for VSC7385 microcode.

However, if an eth2 comes up as shown below.

root@p2020rdb:~# ifconfig eth2 up

net eth2: error: SGMII mode requires that the device tree specify a tbi-handle

When you set all the ip and ping eth1 eth2 that this behavior is not doing the operation, during the operation, eth2 eth1 do not speak the operation. This is only one of two ping.

eth1 phy address is 0, eth2 phy address is 1.

Where do you fix the more?

Thank you.

Best regards,

gyosun.

Re: SGMII3 additional connection problems P2020

gyosunshim — Thu, 25 Aug 2016 03:02:22 GMT

Can you answer under the reply?
I need your help.
Thank you.

gyosun.

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SGMII3 additional connection problems P2020

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Re: SGMII3 additional connection problems P2020

Re: SGMII3 additional connection problems P2020