Hi,
I have an openlabs 802.15.4 transceiver [0] connected to a RPi and there
are several users inside linux-wpan community which use these transceivers
on a RPi.
My last test shows many corrupted data and I bisected this issue on
commit 210b49231af6a3ede5de3c90850dbf1134a855c2 ("spi: bcm2835: clock
divider can be a multiple of 2").
After reverting this commit by running:
git revert 210b49231af6a3ede5de3c90850dbf1134a855c2
there is no corrupted data anymore.
My spi device-tree entry for the at86rf230 driver is the following:
&spi {
status = "okay";
at86rf233@0 {
compatible = "atmel,at86rf233";
spi-max-frequency = <7500000>;
reg = <0>;
interrupts = <23 4>;
interrupt-parent = <&gpio>;
reset-gpio = <&gpio 24 1>;
sleep-gpio = <&gpio 25 1>;
xtal-trim = /bits/ 8 <0x0F>;
};
};
I have no other equipment at my home to check the exact spi clock or
something else, what I can say is after reverting this commit I don't
have any corrupted data anymore and eveything working fine.
To all linux-wpan at86rf233 users on a RPi:
Can you confirm these issue with the bcm2835 controller? Then we could
maybe more debug this issue.
- Alex
[0] http://openlabs.co/store/Raspberry-Pi-802.15.4-radio
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