(01-13-2019, 10:06 PM)thewonderer Wrote: Hoping for some new builds soon as the last pre-release (0.7.11) Ubuntu 18.04, crashed after a few hours... I did note that the performance seemed better and the copying over network via SMB share was much improved (still not getting anywhere near the 100MB/s throughput though)....
Dear Guys,
I bought a new test/final RTC. It is a DS3231+AT24C32 RTCM and working fine at 3.3V!
root@rock64:/lib/modules/4.4.154-1128-rockchip-ayufan-g61b4b1151f9a/kernel/drivers/rtc# uname -a && modinfo rtc_ds1307
Linux rock64 4.4.154-1128-rockchip-ayufan-g61b4b1151f9a #1 SMP Tue Dec 25 14:31:31 UTC 2018 aarch64 GNU/Linux
filename: /lib/modules/4.4.154-1128-rockchip-ayufan-g61b4b1151f9a/kernel/drivers/rtc/rtc-ds1307.ko
license: GPL
description: RTC driver for DS1307 and similar chips
alias: i2c:rx8025
alias: i2c:pt7c4338
alias: i2c:mcp7941x
alias: i2c:mcp7940x
alias: i2c:m41t00
alias: i2c:ds3231
alias: i2c:ds1340
alias: i2c:ds1388
alias: i2c:ds1339
alias: i2c:ds1338
alias: i2c:ds1337
alias: i2c:ds1307
depends:
vermagic: 4.4.154-1128-rockchip-ayufan-g61b4b1151f9a SMP mod_unload aarch64
Enable i2c0:
enable_dtoverlay i2c0 i2c@ff150000 okay
Tell the kernel that a DS3231 is using the i2c-0:
echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device
Read the HW clock:
root@rock64:/lib/modules/4.4.154-1128-rockchip-ayufan-g61b4b1151f9a/kernel/drivers/rtc# hwclock -r -D --rtc /dev/rtc1
hwclock from util-linux 2.29.2
Using the /dev interface to the clock.
Last drift adjustment done at 1549029470 seconds after 1969
Last calibration done at 1549029470 seconds after 1969
Hardware clock is on UTC time
Assuming hardware clock is kept in UTC time.
Waiting for clock tick...
...got clock tick
Time read from Hardware Clock: 2019/02/01 14:26:37
Hw clock time : 2019/02/01 14:26:37 = 1549031197 seconds since 1969
Time since last adjustment is 1727 seconds
Calculated Hardware Clock drift is 0.000000 seconds
2019-02-01 15:26:36.139249+0100
Detecting i2c:
root@rock64:/lib/modules/4.4.154-1128-rockchip-ayufan-g61b4b1151f9a/kernel/drivers/rtc# i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- 57 -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
So the Rock64 board is working fine!
