Maarten1

Armbian 6.6.16-sunxi64 (bookworm) on NanoPi NEO2 NanoHatOLED fails: - GPIO devices are missing; 2024-03-29 23:04:55 root@M-DNS:~# uname -a Linux M-DNS 6.6.16-current-sunxi64 #2 SMP Fri Feb 23 08:25:28 UTC 2024 aarch64 GNU/Linux Seems regression of earlier issue that had been solved: Would appreciate as GPIO will restored in kernel.

Many thanks for the good work !!

Hello @Igor, does the answer by @MichaIng makes sense?

Hi MichaIng, Thanks, does this mean we have to wait if in the next kernel update it will be corrected?

Why is it moved to P2P since NanoPi NEO2 is officially supported and this bug affects others as well? I do not understand.

Armbian 5.15.26-sunxi64 kernel breaks GPIO on NanoPi NEO2 Armbian 5.15.26-sunxi64 (bullseye) NanoHatOLED fails: - GPIO devices are missing; - /proc/cpuinfo lacks Processor, Hardware info. root@nanopineo2:~# uname -a Linux nanopineo2 5.15.26-sunxi64 #trunk.0002 SMP Thu Mar 3 10:24:53 UTC 2022 aarch64 GNU/Linux root@nanopineo2:~# gpio readall piBoardRev: Unable to determine board revision from /proc/cpuinfo -> Is not NanoPi based board. -> You may want to check: -> http://www.lemaker.org/ root@nanopineo2:~# cat /tmp/nanohat-oled.log open of gpio 0 returned -1: No such file or directory error opening gpio sysfs entries root@nanopineo2:~# cat /proc/cpuinfo processor : 0 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 1 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 2 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 3 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 Armbian 5.10.60-sunxi64 (bullseye) NanoHatOLED is running fine: root@nanopineo2:~# ls -l /sys/class/gpio total 0 --w--w---- 1 root dialout 4096 Mar 29 23:42 export lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio0 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio0 lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio2 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio2 lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio3 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio3 lrwxrwxrwx 1 root root 0 Jan 1 1970 gpiochip0 -> ../../devices/platform/soc/1c20800.pinctrl/gpio/gpiochip0 lrwxrwxrwx 1 root root 0 Jan 1 1970 gpiochip352 -> ../../devices/platform/soc/1f02c00.pinctrl/gpio/gpiochip352 --w--w---- 1 root dialout 4096 Mar 29 23:42 unexport root@nanopineo2:~# gpio readall +-----+-----+----------+------+---+-NanoPi-NEO2--+------+----------+-----+-----+ | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | | | 3.3V | | | 1 || 2 | | | 5V | | | | 12 | 8 | GPIOA12 | ALT5 | 0 | 3 || 4 | | | 5V | | | | 11 | 9 | GPIOA11 | ALT5 | 0 | 5 || 6 | | | 0v | | | | 203 | 7 | GPIOG11 | OFF | 0 | 7 || 8 | 0 | OFF | GPIOG6 | 15 | 198 | | | | 0v | | | 9 || 10 | 0 | OFF | GPIOG7 | 16 | 199 | | 0 | 0 | GPIOA0 | ALT2 | 0 | 11 || 12 | 0 | OFF | GPIOA6 | 1 | 6 | | 2 | 2 | GPIOA2 | ALT2 | 0 | 13 || 14 | | | 0v | | | | 3 | 3 | GPIOA3 | ALT2 | 0 | 15 || 16 | 0 | OFF | GPIOG8 | 4 | 200 | | | | 3.3v | | | 17 || 18 | 0 | OFF | GPIOG9 | 5 | 201 | | 64 | 12 | GPIOC0 | OFF | 0 | 19 || 20 | | | 0v | | | | 65 | 13 | GPIOC1 | OFF | 0 | 21 || 22 | 0 | OFF | GPIOA1 | 6 | 1 | | 66 | 14 | GPIOC2 | OFF | 0 | 23 || 24 | 0 | OFF | GPIOC3 | 10 | 67 | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-----+-----+----------+------+---+-NanoPi-NEO2--+------+----------+-----+-----+ +-----+----NanoPi-NEO2 USB/Audio-+----+ | BCM | wPi | Name | Mode | V | Ph | +-----+-----+----------+------+---+----+ | | | 5V | | | 25 | | | | USB-DP1 | | | 26 | | | | USB-DM1 | | | 27 | | | | USB-DP2 | | | 28 | | | | USB-DM2 | | | 29 | | | | IR-RX | | | 30 | | 17 | 19 | GPIOA17 | OFF | 0 | 31 | | | | PCM/I2C | | | 32 | | | | PCM/I2C | | | 33 | | | | PCM/I2C | | | 34 | | | | PCM/I2C | | | 35 | | | | 0V | | | 36 | +-----+-----+----------+------+---+----+ +-----+----NanoPi-NEO2 Debug UART-+----+ | BCM | wPi | Name | Mode | V | Ph | +-----+-----+----------+------+---+----+ | 4 | 17 | GPIOA4 | ALT5 | 0 | 37 | | 5 | 18 | GPIOA5 | ALT5 | 0 | 38 | +-----+-----+----------+------+---+----+ root@nanopineo2:~# ls -l /sys/class/gpio total 0 --w--w---- 1 root dialout 4096 Mar 29 23:42 export lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio0 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio0 lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio2 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio2 lrwxrwxrwx 1 root root 0 Mar 29 23:42 gpio3 -> ../../devices/platform/soc/1c20800.pinctrl/gpiochip1/gpio/gpio3 lrwxrwxrwx 1 root root 0 Jan 1 1970 gpiochip0 -> ../../devices/platform/soc/1c20800.pinctrl/gpio/gpiochip0 lrwxrwxrwx 1 root root 0 Jan 1 1970 gpiochip352 -> ../../devices/platform/soc/1f02c00.pinctrl/gpio/gpiochip352 --w--w---- 1 root dialout 4096 Mar 29 23:42 unexport