i.MX ProcessorsのトピックDP83825 problem on iMX6ULL

DP83825 problem on iMX6ULL

carljones — Sun, 16 Aug 2020 08:45:47 GMT

Dear experts,

We have a custom iMX6ULL board on an m2 form factor. It is plugged to a MAIN board which contains the DP83825IRMQR eth phy chip, the magnetics, and the eth port. The ethernet chip uses an external 25MHz oscillator for clock.

The problem we are having is that the network connection of the ethernet chip flaps (turns on / off)

[ 959.561827] TI DP83825S 2188000.ethernet-1:00: attached PHY driver [TI DP83825S] (mii_bus:phy_addr=2188000.ethernet-1:00, irq=POLL)
[ 961.624018] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 961.624212] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1062.503554] fec 2188000.ethernet eth0: Link is Down
[ 1063.543970] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1089.543566] fec 2188000.ethernet eth0: Link is Down
[ 1090.584208] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1115.543529] fec 2188000.ethernet eth0: Link is Down
[ 1116.583998] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1172.743596] fec 2188000.ethernet eth0: Link is Down
[ 1173.784015] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1263.223543] fec 2188000.ethernet eth0: Link is Down
[ 1264.263994] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1295.463566] fec 2188000.ethernet eth0: Link is Down
[ 1296.504006] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
root@localhost:~#

Our u-boot version is

VERSION = 2018
PATCHLEVEL = 03
SUBLEVEL =
EXTRAVERSION =
NAME =

and our Linux version is

root@localhost:~# cat /etc/*release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.6 LTS"
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
Linux localhost 5.4.3-dirty #3 SMP Sun Aug 16 10:01:41 PST 2020 armv7l armv7l armv7l GNU/Linux

The connection of the DP83825 to the MAIN board is (sorry for the overlapping texts)

and to the m2 connector

While the connection on the iMX6ULL m2 edge finger is

to the iMX6ULL chip

Our device tree script in u-boot is imx6ull-prox-sodimm.dts (attached)

&fec1 {
   pinctrl-names = "default";
   pinctrl-0 = <&pinctrl_enet1>;
   phy-mode = "rmii";
   phy-handle = <&ethphy0>;
   /*phy-reset-gpios = <&gpio1 5 0>;*/
   status = "okay";

   mdio {
       #address-cells = <1>;
       #size-cells = <0>;

       ethphy0: ethernet-phy@0 {
           compatible = "ethernet-phy-ieee802.3-c22";
           reg = <0>;
           clocks = <&clks IMX6UL_CLK_ENET_REF>;
           /*clock-names = "rmii-ref";*/
           clock-names = "no_enet_out";
           assigned-clock-rates = <0>, <100000000>;
       };
   };
};

       pinctrl_enet1: enet1grp {
           fsl,pins = <
               MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00    0x000110B0
                MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01    0x000110B0
                MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN         0x000110B0
                MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER         0x000110B0
                MX6UL_PAD_ENET1_RX_DATA0__PWM1_OUT   0x110b0
                /*MX6UL_PAD_ENET1_TX_CLK__ENET1_TX_CLK     0x40000001*/
                MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1     0x40000001
                MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00    0x000110B0
                MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01    0x000110B0
                MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN         0x000110B0
                MX6UL_PAD_GPIO1_IO06__ENET1_MDIO           0x000110B0
                MX6UL_PAD_GPIO1_IO07__ENET1_MDC            0x000110B0
           >;
       };

There is no driver yet for DP83825 in u-boot so we are testing straight to Linux.

The DP83825 driver in Linux is dp83822.c (modified to include DP83825) (attached also).

Here are some of the logs in Linux

root@localhost:~# ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Advertised link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Link partner advertised link modes: 10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
        Link partner advertised pause frame use: Symmetric Receive-only
        Link partner advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Link detected: yes
root@localhost:~#

root@localhost:~# ethtool -S eth0
NIC statistics:
     tx_dropped: 0
     tx_packets: 17
     tx_broadcast: 7
     tx_multicast: 10
     tx_crc_errors: 0
     tx_undersize: 0
     tx_oversize: 0
     tx_fragment: 0
     tx_jabber: 0
     tx_collision: 0
     tx_64byte: 0
     tx_65to127byte: 10
     tx_128to255byte: 0
     tx_256to511byte: 7
     tx_512to1023byte: 0
     tx_1024to2047byte: 0
     tx_GTE2048byte: 0
     tx_octets: 3258
     IEEE_tx_drop: 0
     IEEE_tx_frame_ok: 17
     IEEE_tx_1col: 0
     IEEE_tx_mcol: 0
     IEEE_tx_def: 0
     IEEE_tx_lcol: 0
     IEEE_tx_excol: 0
     IEEE_tx_macerr: 0
     IEEE_tx_cserr: 0
     IEEE_tx_sqe: 0
     IEEE_tx_fdxfc: 0
     IEEE_tx_octets_ok: 3258
     rx_packets: 0
     rx_broadcast: 0
     rx_multicast: 0
     rx_crc_errors: 0
     rx_undersize: 0
     rx_oversize: 0
     rx_fragment: 0
     rx_jabber: 0
     rx_64byte: 0
     rx_65to127byte: 0
     rx_128to255byte: 0
     rx_256to511byte: 0
     rx_512to1023byte: 0
     rx_1024to2047byte: 0
     rx_GTE2048byte: 0
     rx_octets: 0
     IEEE_rx_drop: 0
     IEEE_rx_frame_ok: 0
     IEEE_rx_crc: 0
     IEEE_rx_align: 0
     IEEE_rx_macerr: 0
     IEEE_rx_fdxfc: 0
     IEEE_rx_octets_ok: 0
root@localhost:~#
/* When connection is up */
root@localhost:~# ethtool -a eth0
Pause parameters for eth0:
Autonegotiate: on
RX:             off
TX:             off
RX negotiated: on
TX negotiated: on

root@localhost:~#

root@localhost:~# ethtool -i eth0
driver: fec
version: Revision: 1.0
firmware-version:
expansion-rom-version:
bus-info: eth0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
root@localhost:~#

root@localhost:~# ethtool -d eth0
Offset          Values
------          ------
0x0000:         00 00 00 00 00 00 00 00 aa 00 80 0a 00 00 00 00
0x0010:         00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00
0x0020:         00 00 00 00 12 01 00 f0 00 00 00 00 00 00 00 00
0x0030:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0040:         6d 78 06 60 1a 00 00 00 00 00 00 00 00 00 00 00
0x0050:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0060:         00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00
0x0070:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0080:         00 00 00 00 24 01 c0 47 00 00 00 00 00 00 00 00
0x0090:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00a0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00b0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00c0:         00 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00
0x00d0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00e0:         00 00 00 00 9d 44 ca 9a 08 88 4a b5 f0 ff 01 00
0x00f0:         0e 08 80 cc ff ff ff ff ff ff ff ff 00 00 00 00
0x0100:         0e 08 80 cc ff ff ff ff ff ff ff ff 00 00 00 00
0x0110:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0120:         00 00 40 00 08 00 80 00 00 00 00 00 00 00 00 00
0x0130:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0140:         00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00
0x0150:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0160:         ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x0170:         ff ff ff ff ff ff ff ff 00 00 00 00 00 00 00 00
0x0180:         00 80 00 8e 00 c0 00 8e c0 07 00 00 00 00 00 00
0x0190:         10 00 00 00 84 00 00 00 08 00 00 00 08 00 00 00
0x01a0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01b0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x01c0:         00 00 00 00 86 00 00 00 ff ff ff ff ff ff ff ff
0x01d0:         00 00 00 00 00 00 00 00 ff ff ff ff ff ff ff ff
0x01e0:         ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
0x01f0:         ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00
0x0200:         00 00 00 00 03 00 00 00 01 00 00 00 02 00 00 00
0x0210:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0220:         00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00
0x0230:         00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
0x0240:         00 00 00 00 16 02 00 00 00 00 00 00 03 00 00 00
0x0250:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0260:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0270:         00 00 00 00 16 02 00 00 00 00 00 00 00 00 00 00
0x0280:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0290:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02a0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02b0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02c0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02d0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02e0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x02f0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0300:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0310:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
.
. [up to]
.
0x3ff0:         00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
root@localhost:~#

/* When connection is down */
root@localhost:~# ethtool -a eth0
Pause parameters for eth0:
Autonegotiate: on
RX:             off
TX:             off

root@localhost:~# dmesg | tail -50
[   41.206908] kobject: 'vcsa5' ((ptrval)): kobject_uevent_env
[   41.206983] kobject: 'vcsa5' ((ptrval)): fill_kobj_path: path = '/devices/virtual/vc/vcsa5'
[   41.777350] kobject: 'vcs6' ((ptrval)): kobject_add_internal: parent: 'vc', set: 'devices'
[   41.823704] kobject: 'vcs6' ((ptrval)): kobject_uevent_env
[   41.823791] kobject: 'vcs6' ((ptrval)): fill_kobj_path: path = '/devices/virtual/vc/vcs6'
[   41.826730] kobject: 'vcsu6' ((ptrval)): kobject_add_internal: parent: 'vc', set: 'devices'
[   41.843530] kobject: 'vcsu6' ((ptrval)): kobject_uevent_env
[   41.843618] kobject: 'vcsu6' ((ptrval)): fill_kobj_path: path = '/devices/virtual/vc/vcsu6'
[   41.844077] kobject: 'vcsa6' ((ptrval)): kobject_add_internal: parent: 'vc', set: 'devices'
[   41.850598] kobject: 'vcsa6' ((ptrval)): kobject_uevent_env
[   41.850682] kobject: 'vcsa6' ((ptrval)): fill_kobj_path: path = '/devices/virtual/vc/vcsa6'
[   42.189044] kobject: 'imx!sdma!sdma-imx6q.bin' ((ptrval)): kobject_uevent_env
[   42.189149] kobject: 'imx!sdma!sdma-imx6q.bin' ((ptrval)): fill_kobj_path: path = '/devices/soc0/soc/2000000.aips-bus/20ec000.sdma/firmware/imx!sdma!sdma-imx6q.b'
[   42.194998] kobject: 'firmware' ((ptrval)): kobject_cleanup, parent (ptrval)
[   42.195063] kobject: 'firmware' ((ptrval)): calling ktype release
[   42.195139] kobject: 'firmware': free name
[   42.195191] kobject: 'imx!sdma!sdma-imx6q.bin' ((ptrval)): kobject_cleanup, parent (ptrval)
[   42.195239] kobject: 'imx!sdma!sdma-imx6q.bin' ((ptrval)): calling ktype release
[   42.195313] kobject: 'imx!sdma!sdma-imx6q.bin': free name
[   42.195428] imx-sdma 20ec000.sdma: external firmware not found, using ROM firmware
[   44.509952] FAT-fs (mmcblk0p2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[   49.314371] TI DP83825S 2188000.ethernet-1:00: attached PHY driver [TI DP83825S] (mii_bus:phy_addr=2188000.ethernet-1:00, irq=POLL)
[   49.338710] kobject: 'wakeup0' ((ptrval)): kobject_uevent_env
[   49.338816] kobject: 'wakeup0' ((ptrval)): fill_kobj_path: path = '/devices/soc0/soc/2100000.aips-bus/2188000.ethernet/net/eth0/wakeup0'
[   49.383916] kobject: 'wakeup0' ((ptrval)): kobject_cleanup, parent (ptrval)
[   49.383974] kobject: 'wakeup0' ((ptrval)): calling ktype release
[   49.384151] kobject: 'wakeup0': free name
[   51.909389] new mount options do not match the existing superblock, will be ignored
[   52.139015] kobject: '0:26' ((ptrval)): kobject_add_internal: parent: 'bdi', set: 'devices'
[   52.140012] kobject: '0:26' ((ptrval)): kobject_uevent_env
[   52.140100] kobject: '0:26' ((ptrval)): fill_kobj_path: path = '/devices/virtual/bdi/0:26'
[   54.189303] new mount options do not match the existing superblock, will be ignored
[   65.624226] random: crng init done
[ 915.625989] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 915.627066] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 959.561827] TI DP83825S 2188000.ethernet-1:00: attached PHY driver [TI DP83825S] (mii_bus:phy_addr=2188000.ethernet-1:00, irq=POLL)
[ 961.624018] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 961.624212] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1062.503554] fec 2188000.ethernet eth0: Link is Down
[ 1063.543970] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1089.543566] fec 2188000.ethernet eth0: Link is Down
[ 1090.584208] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1115.543529] fec 2188000.ethernet eth0: Link is Down
[ 1116.583998] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1172.743596] fec 2188000.ethernet eth0: Link is Down
[ 1173.784015] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1263.223543] fec 2188000.ethernet eth0: Link is Down
[ 1264.263994] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 1295.463566] fec 2188000.ethernet eth0: Link is Down
[ 1296.504006] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
root@localhost:~#

root@localhost:~# cat /etc/*release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.6 LTS"
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
Linux localhost 5.4.3-dirty #3 SMP Sun Aug 16 10:01:41 PST 2020 armv7l armv7l armv7l GNU/Linux
root@localhost:~#

Thank you very much, experts.

Best regards,

Carlos

Re: DP83825 problem on iMX6ULL

igorpadykov — Mon, 17 Aug 2020 01:18:20 GMT

Hi Carlos

one can look at below links describing similar issue

net: ethernet: fsl: don't en/disable refclk on open/close - Patchwork

static int ar8035_phy_fixup(struct phy_device *dev)
.. /* Ar803x phy SmartEEE feature cause link status generates glitch,
* which cause ethernet link down/up issue, so disable SmartEEE

mach-imx6q.c\mach-imx\arm\arch - linux-imx - i.MX Linux kernel

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: DP83825 problem on iMX6ULL

carljones — Mon, 17 Aug 2020 08:49:36 GMT

Hi Igor,

Thank you for the prompt response.

I've tried recommendation from

net: ethernet: fsl: don't en/disable refclk on open/close - Patchwork and the response of my board is that it "hanged" on Linux boot up.

I've tried to change the values in dts to set the SION bit as instructed from https://community.nxp.com/thread/389902 and the response of my board is that it still turns on / off.

I've yet to try https://source.codeaurora.org/external/imx/linux-imx/plain/arch/arm/mach-imx/mach-imx6q.c?h=imx_5.4.24_2.1.0 for EEE settings if it causes the same error with DP83825.

I'll try to check which causes the

root@localhost:~# dmesg | tail
[   54.587300] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   72.264552] fec 2188000.ethernet eth0: Link is Down
[   74.345243] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   74.841798] random: crng init done
[   80.584700] fec 2188000.ethernet eth0: Link is Down
[   81.625216] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   94.104678] fec 2188000.ethernet eth0: Link is Down
[   96.184796] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   99.304667] fec 2188000.ethernet eth0: Link is Down
[ 100.345116] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
root@localhost:~# dmesg | tail
[   54.587300] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   72.264552] fec 2188000.ethernet eth0: Link is Down
[   74.345243] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   74.841798] random: crng init done
[   80.584700] fec 2188000.ethernet eth0: Link is Down
[   81.625216] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   94.104678] fec 2188000.ethernet eth0: Link is Down
[   96.184796] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   99.304667] fec 2188000.ethernet eth0: Link is Down
[ 100.345116] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
root@localhost:~# dmesg | tail
[   54.587300] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   72.264552] fec 2188000.ethernet eth0: Link is Down
[   74.345243] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   74.841798] random: crng init done
[   80.584700] fec 2188000.ethernet eth0: Link is Down
[   81.625216] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   94.104678] fec 2188000.ethernet eth0: Link is Down
[   96.184796] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   99.304667] fec 2188000.ethernet eth0: Link is Down
[ 100.345116] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

error on Linux. Do you have tips/recommendation where to check this quickly?

Best regards,

Carlos

Re: DP83825 problem on iMX6ULL

carljones — Mon, 17 Aug 2020 09:00:32 GMT

correction...

I've tried to change the values in dts to set the SION bit as instructed from https://community.nxp.com/thread/389902 and the response of my board is that the network was no longer detected