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docs: Update RTC sysfs paths for Raspberry Pi 5 #4255

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docs: Update RTC sysfs paths for Raspberry Pi 5 #4255

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6 changes: 3 additions & 3 deletions documentation/asciidoc/computers/raspberry-pi/rtc.adoc
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Expand Up @@ -58,9 +58,9 @@ The RTC is equipped with a constant-current (3mA) constant-voltage charger.
Charging of the battery is disabled by default. There are `sysfs` files that show the charging voltage and limits:

----
/sys/devices/platform/soc/soc:rpi_rtc/rtc/rtc0/charging_voltage:0
/sys/devices/platform/soc/soc:rpi_rtc/rtc/rtc0/charging_voltage_max:4400000
/sys/devices/platform/soc/soc:rpi_rtc/rtc/rtc0/charging_voltage_min:1300000
/sys/devices/platform/soc@107c000000/soc@107c000000:rpi_rtc/rtc/rtc0/charging_voltage:0
/sys/devices/platform/soc@107c000000/soc@107c000000:rpi_rtc/rtc/rtc0/charging_voltage_max:4400000
/sys/devices/platform/soc@107c000000/soc@107c000000:rpi_rtc/rtc/rtc0/charging_voltage_min:1300000
----

To charge the battery at a set voltage, add https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README#L279[`rtc_bbat_vchg`] to `/boot/firmware/config.txt`:
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