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My Adafruit PCF8523 RTC on either RPi2B or RPi3B+ failed to work around
80 ~ 90 % of boot-ups, by printing the following log lines.
nxprtc0: <NXP PCF8523 RTC> at addr 0xd0 on iicbus0
nxprtc0: cannot set up timer
Warning: no time-of-day clock registered, system time will not be set accurately
This is due to pcf8523_start_timer(sc) returned non-zero in
nxprtc_start() due to a register read failure of PCF8523_R_TMR_A_FREQ or
PCF8523_R_TMR_CLKOUT or a failure to program a new value.
The pause_sbt("nxpbat") sleep was too short and caused the register
access failures.
PR: 266093
(cherry picked from commit
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|---|---|---|
| .. | ||
| gpio | ||
| mux | ||
| pmic | ||
| rtc | ||
| twsi | ||
| acpi_iicbus.c | ||
| ad7417.c | ||
| ad7418.c | ||
| adm1030.c | ||
| ads111x.c | ||
| adt746x.c | ||
| ds13rtc.c | ||
| ds1307.c | ||
| ds1307reg.h | ||
| ds1631.c | ||
| ds1672.c | ||
| ds1775.c | ||
| ds3231.c | ||
| ds3231reg.h | ||
| htu21.c | ||
| icee.c | ||
| if_ic.c | ||
| iic.c | ||
| iic.h | ||
| iic_recover_bus.c | ||
| iic_recover_bus.h | ||
| iicbb.c | ||
| iicbb_if.m | ||
| iicbus.c | ||
| iicbus.h | ||
| iicbus_if.m | ||
| iichid.c | ||
| iicoc.c | ||
| iicoc.h | ||
| iicoc_fdt.c | ||
| iicoc_pci.c | ||
| iiconf.c | ||
| iiconf.h | ||
| iicsmb.c | ||
| isl12xx.c | ||
| lm75.c | ||
| max6690.c | ||
| max44009.c | ||
| nxprtc.c | ||
| ofw_iicbus.c | ||
| pcf8591.c | ||
| rtc8583.c | ||
| s35390a.c | ||
| sy8106a.c | ||
| syr827.c | ||