In AM335x evm, we have connected broadcom wifi brcm43430 module in mmc2. I enabled the broadcom driver and configured the dts as follow
&mmc2 {
status = "okay";
vmmc-supply = <&vmmc_reg>;
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins_default>;
ti,non-removable;
ti,needs-special-hs-handling;
cap-power-off-card;
keep-power-in-suspend;
brcmf: bcrmf@1 {
status = "okay";
reg = <1>;
compatible = "brcm,bcm43340-fmac";
};
};
once device booted, I'm able to connect the broadcom wifi to access point and able to get ip address. Also I''m able to ping but in between I'm getting the dma error.
ping 192.168.1.100
PING 192.168.1.100 (192.168.1.100): 56 data bytes
64 bytes from 192.168.1.100: seq=0 ttl=64 time=988.498 ms
64 bytes from 192.168.1.100: seq=1 ttl=64 time=7.694 ms
64 bytes from 192.168.1.100: seq=2 ttl=64 time=250.249 ms
64 bytes from 192.168.1.100: seq=3 ttl=64 time=339.703 ms
64 bytes from 192.168.1.100: seq=4 ttl=64 time=400.491 ms
64 bytes from 192.168.1.100: seq=5 ttl=64 time=459.148 ms
64 bytes from 192.168.1.100: seq=6 ttl=64 time=498.982 ms
64 bytes from 192.168.1.100: seq=7 ttl=64 time=748.227 ms
64 bytes from 192.168.1.100: seq=8 ttl=64 time=807.846 ms
64 bytes from 192.168.1.100: seq=9 ttl=64 time=867.752 ms
64 bytes from 192.168.1.100: seq=10 ttl=64 time=927.145 ms
64 bytes from 192.168.1.100: seq=11 ttl=64 time=986.852 ms
64 bytes from 192.168.1.100: seq=12 ttl=64 time=13.413 ms
64 bytes from 192.168.1.100: seq=13 ttl=64 time=246.074 ms
64 bytes from 192.168.1.100: seq=14 ttl=64 time=306.052 ms
64 bytes from 192.168.1.100: seq=15 ttl=64 time=345.741 ms
64 bytes from 192.168.1.100: seq=16 ttl=64 time=385.357 ms
64 bytes from 192.168.1.100: seq=17 ttl=64 time=425.048 ms
64 bytes from 192.168.1.100: seq=18 ttl=64 time=484.698 ms
64 bytes from 192.168.1.100: seq=19 ttl=64 time=544.552 ms
64 bytes from 192.168.1.100: seq=20 ttl=64 time=604.137 ms
64 bytes from 192.168.1.100: seq=21 ttl=64 time=663.809 ms
64 bytes from 192.168.1.100: seq=22 ttl=64 time=1753.569 ms
64 bytes from 192.168.1.100: seq=23 ttl=64 time=753.921 ms
64 bytes from 192.168.1.100: seq=24 ttl=64 time=813.022 ms
64 bytes from 192.168.1.100: seq=25 ttl=64 time=872.778 ms
64 bytes from 192.168.1.100: seq=26 ttl=64 time=932.389 ms
64 bytes from 192.168.1.100: seq=27 ttl=64 time=992.037 ms
64 bytes from 192.168.1.100: seq=28 ttl=64 time=8.566 ms
64 bytes from 192.168.1.100: seq=29 ttl=64 time=241.322 ms
64 bytes from 192.168.1.100: seq=30 ttl=64 time=301.199 ms
[ 150.400617] omap_hsmmc 481d8000.mmc: MMC start dma failure
[ 150.406301] brcmf_sdiod_sglist_rw: CMD53 sg block write failed -22
[ 150.413672] brcmf_sdio_txfail: sdio error, abort command and terminate frame
64 bytes from 192.168.1.100: seq=32 ttl=64 time=390.718 ms
64 bytes from 192.168.1.100: seq=33 ttl=64 time=450.200 ms
64 bytes from 192.168.1.100: seq=34 ttl=64 time=510.942 ms
64 bytes from 192.168.1.100: seq=35 ttl=64 time=559.477 ms
64 bytes from 192.168.1.100: seq=36 ttl=64 time=619.287 ms
64 bytes from 192.168.1.100: seq=37 ttl=64 time=678.835 ms
64 bytes from 192.168.1.100: seq=38 ttl=64 time=718.629 ms
64 bytes from 192.168.1.100: seq=39 ttl=64 time=778.465 ms
64 bytes from 192.168.1.100: seq=40 ttl=64 time=1004.650 ms
64 bytes from 192.168.1.100: seq=41 ttl=64 time=10.999 ms
64 bytes from 192.168.1.100: seq=42 ttl=64 time=243.885 ms
64 bytes from 192.168.1.100: seq=43 ttl=64 time=303.621 ms
64 bytes from 192.168.1.100: seq=44 ttl=64 time=363.150 ms
64 bytes from 192.168.1.100: seq=45 ttl=64 time=422.981 ms
64 bytes from 192.168.1.100: seq=46 ttl=64 time=482.599 ms
64 bytes from 192.168.1.100: seq=47 ttl=64 time=542.241 ms
64 bytes from 192.168.1.100: seq=48 ttl=64 time=601.993 ms
64 bytes from 192.168.1.100: seq=49 ttl=64 time=661.802 ms
64 bytes from 192.168.1.100: seq=50 ttl=64 time=721.374 ms
64 bytes from 192.168.1.100: seq=51 ttl=64 time=761.107 ms
64 bytes from 192.168.1.100: seq=52 ttl=64 time=800.756 ms
64 bytes from 192.168.1.100: seq=53 ttl=64 time=860.386 ms
64 bytes from 192.168.1.100: seq=54 ttl=64 time=920.059 ms
64 bytes from 192.168.1.100: seq=55 ttl=64 time=979.836 ms
64 bytes from 192.168.1.100: seq=56 ttl=64 time=76.361 ms
64 bytes from 192.168.1.100: seq=57 ttl=64 time=309.258 ms
64 bytes from 192.168.1.100: seq=58 ttl=64 time=368.817 ms
64 bytes from 192.168.1.100: seq=59 ttl=64 time=408.553 ms
64 bytes from 192.168.1.100: seq=60 ttl=64 time=468.503 ms
64 bytes from 192.168.1.100: seq=61 ttl=64 time=507.720 ms
64 bytes from 192.168.1.100: seq=62 ttl=64 time=548.293 ms
[ 182.433832] omap_hsmmc 481d8000.mmc: MMC start dma failure
[ 182.439411] brcmf_sdiod_sglist_rw: CMD53 sg block write failed -22
[ 182.446784] brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 183.434177] omap_hsmmc 481d8000.mmc: MMC start dma failure
[ 183.439740] brcmf_sdiod_sglist_rw: CMD53 sg block write failed -22
[ 183.446947] brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 184.434577] omap_hsmmc 481d8000.mmc: MMC start dma failure
[ 184.440142] brcmf_sdiod_sglist_rw: CMD53 sg block write failed -22
[ 184.447354] brcmf_sdio_txfail: sdio error, abort command and terminate frame
64 bytes from 192.168.1.100: seq=66 ttl=64 time=796.402 ms
64 bytes from 192.168.1.100: seq=67 ttl=64 time=863.185 ms
64 bytes from 192.168.1.100: seq=68 ttl=64 time=55.485 ms
64 bytes from 192.168.1.100: seq=69 ttl=64 time=285.458 ms
64 bytes from 192.168.1.100: seq=70 ttl=64 time=365.019 ms
64 bytes from 192.168.1.100: seq=71 ttl=64 time=424.705 ms
64 bytes from 192.168.1.100: seq=72 ttl=64 time=1524.363 ms
64 bytes from 192.168.1.100: seq=73 ttl=64 time=524.570 ms
64 bytes from 192.168.1.100: seq=74 ttl=64 time=583.997 ms
64 bytes from 192.168.1.100: seq=75 ttl=64 time=643.822 ms
Can anyone help how to get rid of this error.
