Tool/software: Linux
Hello，
Now we have added a network chip w5100s to ARM 4377. w5100s is connected to SPI2 pin of ARM 4377. We use SPI mode to control w5100s. SDK version is TI's latest SDK V5.2, and the kernel version is RT-Linux 4.14.79.I configure the kernel as follows:
1、Open wiznet related configuration in kernel configuration
2、Open CONFIG_SPI_SPIDEV configuration in kernel configuration
3、modify /drivers/spi/spidev.c to add .compatible= "w5100" matches in spidev_dt_ids[ ]
4、recompiling tisdk_am437x-evm-rt_deconfig, kernel zImage and modules will generate new zImage, w5100.ko and w5100-spi.ko, burn new zImage to NAND flash, and put w5100.ko and w5100-spi.ko into file system /lib/modules/4.14.79-rt47-g28d73230da/kernel/drivers/net/ethernet/wiznet/
5、modifying device tree file to increase spi2-related configuration
6、restart system found that lsmod did not load w5100.ko and w5100-spi.ko，appearance of device node /dev/spidev2.0，after the system started, I manually loaded w5100.ko and w5100-spi.ko and did not execute the pr_err function I added to the probe function, indicating that the probe function was not called.
root@am437x-evm:~# lsmod
Module Size Used by
xhci_plat_hcd 16384 0
xhci_hcd 118784 1 xhci_plat_hcd
usbcore 204800 2 xhci_plat_hcd,xhci_hcd
dwc3 69632 0
udc_core 28672 1 dwc3
usb_common 16384 3 udc_core,usbcore,dwc3
ti_am335x_adc 16384 0
ti_prueth 73728 1
pru_rproc 20480 1 ti_prueth
pruss 16384 2 pru_rproc,ti_prueth
pruss_intc 16384 1 pru_rproc
pm33xx 16384 0
omap_des 20480 0
omap_aes_driver 24576 0
des_generic 28672 1 omap_des
omap_sham 28672 0
crypto_engine 16384 2 omap_des,omap_aes_driver
omap_crypto 16384 2 omap_des,omap_aes_driver
pruss_soc_bus 16384 0
ti_emif_sram 16384 1 pm33xx
dwc3_omap 16384 0
am437x_vpfe 36864 0
c_can_platform 16384 0
c_can 20480 1 c_can_platform
can_dev 24576 1 c_can
pixcir_i2c_ts 16384 0
snd_soc_tlv320aic3x 57344 0
ov2659 16384 0
wkup_m3_ipc 16384 1 pm33xx
v4l2_fwnode 16384 2 am437x_vpfe,ov2659
phy_omap_usb2 16384 2
wkup_m3_rproc 16384 1
ti_am335x_tscadc 16384 1 ti_am335x_adc
remoteproc 40960 4 pru_rproc,wkup_m3_rproc,wkup_m3_ipc,ti_prueth
omap_wdt 16384 0
sch_fq_codel 20480 2
cryptodev 45056 0
root@am437x-evm:~#
root@am437x-evm:~# ls /dev
autofs ptye5 ptyx2 ttyS6 ttys9
block ptye6 ptyx3 ttyS7 ttysa
btrfs-control ptye7 ptyx4 ttyS8 ttysb
bus ptye8 ptyx5 ttyS9 ttysc
char ptye9 ptyx6 ttya0 ttysd
console ptyea ptyx7 ttya1 ttyse
cpu_dma_latency ptyeb ptyx8 ttya2 ttysf
crypto ptyec ptyx9 ttya3 ttyt0
fd ptyed ptyxa ttya4 ttyt1
full ptyee ptyxb ttya5 ttyt2
gpiochip0 ptyef ptyxc ttya6 ttyt3
gpiochip1 ptyp0 ptyxd ttya7 ttyt4
gpiochip2 ptyp1 ptyxe ttya8 ttyt5
gpiochip3 ptyp2 ptyxf ttya9 ttyt6
gpiochip4 ptyp3 ptyy0 ttyaa ttyt7
gpiochip5 ptyp4 ptyy1 ttyab ttyt8
hwrng ptyp5 ptyy2 ttyac ttyt9
i2c-0 ptyp6 ptyy3 ttyad ttyta
i2c-1 ptyp7 ptyy4 ttyae ttytb
iio:device0 ptyp8 ptyy5 ttyaf ttytc
initctl ptyp9 ptyy6 ttyb0 ttytd
kmsg ptypa ptyy7 ttyb1 ttyte
log ptypb ptyy8 ttyb2 ttytf
loop-control ptypc ptyy9 ttyb3 ttyu0
loop0 ptypd ptyya ttyb4 ttyu1
loop1 ptype ptyyb ttyb5 ttyu2
loop2 ptypf ptyyc ttyb6 ttyu3
loop3 ptyq0 ptyyd ttyb7 ttyu4
loop4 ptyq1 ptyye ttyb8 ttyu5
loop5 ptyq2 ptyyf ttyb9 ttyu6
loop6 ptyq3 ptyz0 ttyba ttyu7
loop7 ptyq4 ptyz1 ttybb ttyu8
mem ptyq5 ptyz2 ttybc ttyu9
memory_bandwidth ptyq6 ptyz3 ttybd ttyua
mqueue ptyq7 ptyz4 ttybe ttyub
mtd0 ptyq8 ptyz5 ttybf ttyuc
mtd0ro ptyq9 ptyz6 ttyc0 ttyud
mtd1 ptyqa ptyz7 ttyc1 ttyue
mtd1ro ptyqb ptyz8 ttyc2 ttyuf
mtd2 ptyqc ptyz9 ttyc3 ttyv0
mtd2ro ptyqd ptyza ttyc4 ttyv1
mtd3 ptyqe ptyzb ttyc5 ttyv2
mtd3ro ptyqf ptyzc ttyc6 ttyv3
mtd4 ptyr0 ptyzd ttyc7 ttyv4
mtd4ro ptyr1 ptyze ttyc8 ttyv5
mtd5 ptyr2 ptyzf ttyc9 ttyv6
mtd5ro ptyr3 ram0 ttyca ttyv7
mtd6 ptyr4 ram1 ttycb ttyv8
mtd6ro ptyr5 ram10 ttycc ttyv9
mtd7 ptyr6 ram11 ttycd ttyva
mtd7ro ptyr7 ram12 ttyce ttyvb
mtd8 ptyr8 ram13 ttycf ttyvc
mtd8ro ptyr9 ram14 ttyd0 ttyvd
mtd9 ptyra ram15 ttyd1 ttyve
mtd9ro ptyrb ram2 ttyd2 ttyvf
mtdblock0 ptyrc ram3 ttyd3 ttyw0
mtdblock1 ptyrd ram4 ttyd4 ttyw1
mtdblock2 ptyre ram5 ttyd5 ttyw2
mtdblock3 ptyrf ram6 ttyd6 ttyw3
mtdblock4 ptys0 ram7 ttyd7 ttyw4
mtdblock5 ptys1 ram8 ttyd8 ttyw5
mtdblock6 ptys2 ram9 ttyd9 ttyw6
mtdblock7 ptys3 random ttyda ttyw7
mtdblock8 ptys4 rfkill ttydb ttyw8
mtdblock9 ptys5 shm ttydc ttyw9
network_latency ptys6 snd ttydd ttywa
network_throughput ptys7 spidev2.0 ttyde ttywb
null ptys8 stderr ttydf ttywc
port ptys9 stdin ttye0 ttywd
ptmx ptysa stdout ttye1 ttywe
ptp0 ptysb tty ttye2 ttywf
pts ptysc tty0 ttye3 ttyx0
ptya0 ptysd tty1 ttye4 ttyx1
ptya1 ptyse tty10 ttye5 ttyx2
ptya2 ptysf tty11 ttye6 ttyx3
ptya3 ptyt0 tty12 ttye7 ttyx4
ptya4 ptyt1 tty13 ttye8 ttyx5
ptya5 ptyt2 tty14 ttye9 ttyx6
ptya6 ptyt3 tty15 ttyea ttyx7
ptya7 ptyt4 tty16 ttyeb ttyx8
ptya8 ptyt5 tty17 ttyec ttyx9
ptya9 ptyt6 tty18 ttyed ttyxa
ptyaa ptyt7 tty19 ttyee ttyxb
ptyab ptyt8 tty2 ttyef ttyxc
ptyac ptyt9 tty20 ttyp0 ttyxd
ptyad ptyta tty21 ttyp1 ttyxe
ptyae ptytb tty22 ttyp2 ttyxf
ptyaf ptytc tty23 ttyp3 ttyy0
ptyb0 ptytd tty24 ttyp4 ttyy1
ptyb1 ptyte tty25 ttyp5 ttyy2
ptyb2 ptytf tty26 ttyp6 ttyy3
ptyb3 ptyu0 tty27 ttyp7 ttyy4
ptyb4 ptyu1 tty28 ttyp8 ttyy5
ptyb5 ptyu2 tty29 ttyp9 ttyy6
ptyb6 ptyu3 tty3 ttypa ttyy7
ptyb7 ptyu4 tty30 ttypb ttyy8
ptyb8 ptyu5 tty31 ttypc ttyy9
ptyb9 ptyu6 tty32 ttypd ttyya
ptyba ptyu7 tty33 ttype ttyyb
ptybb ptyu8 tty34 ttypf ttyyc
ptybc ptyu9 tty35 ttyq0 ttyyd
ptybd ptyua tty36 ttyq1 ttyye
ptybe ptyub tty37 ttyq2 ttyyf
ptybf ptyuc tty38 ttyq3 ttyz0
ptyc0 ptyud tty39 ttyq4 ttyz1
ptyc1 ptyue tty4 ttyq5 ttyz2
ptyc2 ptyuf tty40 ttyq6 ttyz3
ptyc3 ptyv0 tty41 ttyq7 ttyz4
ptyc4 ptyv1 tty42 ttyq8 ttyz5
ptyc5 ptyv2 tty43 ttyq9 ttyz6
ptyc6 ptyv3 tty44 ttyqa ttyz7
ptyc7 ptyv4 tty45 ttyqb ttyz8
ptyc8 ptyv5 tty46 ttyqc ttyz9
ptyc9 ptyv6 tty47 ttyqd ttyza
ptyca ptyv7 tty48 ttyqe ttyzb
ptycb ptyv8 tty49 ttyqf ttyzc
ptycc ptyv9 tty5 ttyr0 ttyzd
ptycd ptyva tty50 ttyr1 ttyze
ptyce ptyvb tty51 ttyr2 ttyzf
ptycf ptyvc tty52 ttyr3 ubi0
ptyd0 ptyvd tty53 ttyr4 ubi0_0
ptyd1 ptyve tty54 ttyr5 ubi_ctrl
ptyd2 ptyvf tty55 ttyr6 udev_network_queue
ptyd3 ptyw0 tty56 ttyr7 urandom
ptyd4 ptyw1 tty57 ttyr8 vcs
ptyd5 ptyw2 tty58 ttyr9 vcs1
ptyd6 ptyw3 tty59 ttyra vcs2
ptyd7 ptyw4 tty6 ttyrb vcs3
ptyd8 ptyw5 tty60 ttyrc vcs4
ptyd9 ptyw6 tty61 ttyrd vcs5
ptyda ptyw7 tty62 ttyre vcs6
ptydb ptyw8 tty63 ttyrf vcsa
ptydc ptyw9 tty7 ttys0 vcsa1
ptydd ptywa tty8 ttys1 vcsa2
ptyde ptywb tty9 ttys2 vcsa3
ptydf ptywc ttyS0 ttys3 vcsa4
ptye0 ptywd ttyS1 ttys4 vcsa5
ptye1 ptywe ttyS2 ttys5 vcsa6
ptye2 ptywf ttyS3 ttys6 watchdog
ptye3 ptyx0 ttyS4 ttys7 watchdog0
ptye4 ptyx1 ttyS5 ttys8 zero
root@am437x-evm:~# cd /lib/modules/4.14.79-rt47-g28d73230da/kernel/drivers/net/ethernet/wiznet/
root@am437x-evm:/lib/modules/4.14.79-rt47-g28d73230da/kernel/drivers/net/ethernet/wiznet# ls -al
total 36
drwxrwxr-x 2 1000 1000 304 Feb 28 2019 .
drwxrwxrwx 7 root root 488 Feb 28 2019 ..
-rwxrw-rw- 1 1000 1000 9708 Feb 28 2019 w5100-spi.ko
-rwxrw-rw- 1 1000 1000 20552 Feb 28 2019 w5100.ko
I don't know why the kernel start didn't load w5100.ko and w5100-spi.ko. Is there any lack of steps here? Would you please help me to see the problem? Thank you very much！
the complete log and device tree files are attached.
