Date: Mon, 4 Feb 2019 10:08:54 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: freebsd-arm@freebsd.org Cc: Bernd Walter <ticso@cicely7.cicely.de> Subject: Problem with PCF8563 RTC on Raspberry Message-ID: <20190204090854.GA41812@cicely7.cicely.de>
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I'm trying to get the RTC on a Waveshare ARPI600 module running on a
Raspberry Pi B.
This is the Overlay I'm using:
/dts-v1/;
/plugin/;
&i2c0 {
status = "okay";
rtc: rtc@51 {
compatible = "nxp,pcf8563";
reg = <0x51>;
};
};
IICbus gets probed during boot:
iicbus0: <OFW I2C bus> on iichb0
iic0: <I2C generic I/O> on iicbus0
iicbus0: <unknown card> at addr 0xa2
When I load the nxprtc moduele I get the following error:
nxprtc0: <NXP PCF8563 RTC> at addr 0xa2 on iicbus0
nxprtc0: cannot set up timer
I wonder if I miss something, e.g. setting GPIO.
However, for spi0 no GPIO setup was required and the overlay looks
quite similar.
--
B.Walter <bernd@bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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