Lubos Strapko

I have the same issue, i2c is enabled in armbian-config, i am also getting a plenty of dmesg error after calling i2cdetect -y 0 [ 54.872214] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x2, status: 0x0, addr: 0x3, flags: 0x0 [ 54.931614] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x4, flags: 0x0 [ 54.973462] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x5, flags: 0x0 [ 55.031574] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x6, flags: 0x0 [ 55.073450] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x7, flags: 0x0 [ 55.113442] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x8, flags: 0x0 [ 55.153452] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x9, flags: 0x0 [ 55.193409] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xa, flags: 0x0 [ 55.233429] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xb, flags: 0x0 [ 55.273399] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xc, flags: 0x0 [ 55.313419] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xd, flags: 0x0 [ 55.353444] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xe, flags: 0x0 [ 55.393450] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0xf, flags: 0x0 [ 55.431574] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x10, flags: 0x0 Can anybody please tell me what "mv64xxx_i2c_fsm: Ctlr Error" means?

Hello, I am trying to get i2c-0 working on my Armbian 20.11.3 Focal with Linux 5.9.14-sunxi64 After I run: i2cdetect -y 0 i see a plenty of dmesg errors: i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x4, status: 0x0, addr: 0x77, flags: 0x0 I have enabled i2c-0 in armbian-config, tried what I could but no luck. Can anybody told me what mv64xxx_i2c_fsm: Ctlr Error means please? ls -l /sys/bus/i2c/devices -> lrwxrwxrwx 1 root root 0 Dec 22 13:05 i2c-0 -> ../../../devices/platform/soc/1c2ac00.i2c/i2c-0 The same wiring and installation (with i2c_bcm2708 and i2c_dev) works on Raspberry pi - checked.