Forum Linux.embarqué probleme module sfp et i2c pxa

Posté par  . Licence CC By‑SA.
Étiquettes : aucune
0
31
jan.
2021

Hello.
Pour un projet, j'essaie d'intégrer un module sfp à ma carte.

si j'ai bien compris , le module sfp utilise l'i2c pour communiquer avec la carte.

voici les erreurs rencontrées quand je fais un ethtool -m

    # ethtool -m eth1
    [   49.140673] i2c i2c-0: i2c_pxa_set_slave: wait timedout
    [   50.100702] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   51.060606] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   52.020664] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   52.980698] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   53.940698] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   53.943728] i2c i2c-0: slave_0x50 error: exhausted retries
    [   53.949370] i2c i2c-0: msg_num: 0 msg_idx: 2 msg_ptr: 0
    [   53.954903] i2c i2c-0: IBMR: 00000000 IDBR: 00000003 ICR: 00013fe0 ISR: 00000005
    [   53.962618] i2c i2c-0: log:
    [   53.965198]  [044:13fe8] [044:12fe9] [045:13fe8] [085:13fe0]
    Cannot get Module EEPROM data: Remote I/O error

Et les messages concernant l'i2c pxa dans le dmesg :

    # dmesg | grep pxa
    [    5.873202]  (null): i2c_pxa_abort: called in slave mode
    [    5.874391]  (null): state:i2c_pxa_set_slave:537: ISR=00000000, ICR=00013fa0, IBMR=03
    [    5.874397]  (null): state:i2c_pxa_wait_slave:508: ISR=00000000, ICR=00013fa0, IBMR=03
    [    5.874949] i2c-dev: adapter [pxa_i2c-i2c] registered as minor 0
    [    5.875184] i2c i2c-0: adapter [pxa_i2c-i2c] registered
    [    5.875889] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00012fe1, IBMR=01
    [    5.875899] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00013fe8, IBMR=01
    [    5.875935] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00013fe0, IBMR=01
    [    5.875943] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00012fe9, IBMR=01
    [    5.875984] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000045, ICR=00012fe1, IBMR=01
    [    5.875991] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000005, ICR=00013fe8, IBMR=01
    [    5.876028] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876072] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876116] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876160] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876204] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876248] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876291] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876335] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000087, ICR=00013fe6, IBMR=02
    [    5.876357] i2c i2c-0: state:i2c_pxa_set_slave:537: ISR=00000002, ICR=00013fe0, IBMR=03
    [    5.876364] i2c i2c-0: state:i2c_pxa_wait_slave:508: ISR=00000002, ICR=00013fe0, IBMR=03
    [    5.876470] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00012fe1, IBMR=01
    [    5.876477] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00013fe8, IBMR=01
    [    5.876514] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00013fe0, IBMR=01
    [    5.876521] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00012fe9, IBMR=01
    [    5.876562] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000045, ICR=00012fe1, IBMR=01
    [    5.876569] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000005, ICR=00013fe8, IBMR=01
    [    5.876606] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876650] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876694] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876737] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876781] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876825] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.876869] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000087, ICR=00013fe6, IBMR=02
    [    5.876883] i2c i2c-0: state:i2c_pxa_set_slave:537: ISR=00000002, ICR=00013fe0, IBMR=03
    [    5.876890] i2c i2c-0: state:i2c_pxa_wait_slave:508: ISR=00000002, ICR=00013fe0, IBMR=03
    [    5.879327] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00012fe1, IBMR=01
    [    5.879335] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00013fe8, IBMR=01
    [    5.879372] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00013fe0, IBMR=01
    [    5.879379] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00012fe9, IBMR=01
    [    5.879420] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000045, ICR=00012fe1, IBMR=01
    [    5.879427] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000005, ICR=00013fe8, IBMR=01
    [    5.879464] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879508] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879552] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879596] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879639] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879683] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [    5.879727] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000087, ICR=00013fe6, IBMR=02
    [    5.879744] i2c i2c-0: state:i2c_pxa_set_slave:537: ISR=00000002, ICR=00013fe0, IBMR=03
    [    5.879751] i2c i2c-0: state:i2c_pxa_wait_slave:508: ISR=00000002, ICR=00013fe0, IBMR=03
    [   48.121774] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000442, ICR=00012fe0, IBMR=03
    [   48.121798] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000002, ICR=00012fe0, IBMR=03
    [   48.121961] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00012fe1, IBMR=01
    [   48.121972] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00013fe8, IBMR=01
    [   48.122016] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000044, ICR=00013fe0, IBMR=01
    [   48.122026] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000004, ICR=00012fe9, IBMR=01
    [   48.122069] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000045, ICR=00012fe1, IBMR=00
    [   48.122079] i2c i2c-0: state:i2c_pxa_irq_txempty:966: ISR=00000005, ICR=00013fe8, IBMR=00
    [   48.122118] i2c i2c-0: state:i2c_pxa_handler:1015: ISR=00000085, ICR=00013fe0, IBMR=00
    [   48.122457] i2c i2c-0: state:i2c_pxa_set_slave:537: ISR=00000005, ICR=00013fe0, IBMR=00
    [   48.122468] i2c i2c-0: state:i2c_pxa_wait_slave:508: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.140626] i2c i2c-0: i2c_pxa_wait_slave: did not free
    [   49.140673] i2c i2c-0: i2c_pxa_set_slave: wait timedout
    [   49.170793] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.200470] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.230726] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.260664] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.290555] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.320660] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.350654] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.380578] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.410643] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.440634] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.470616] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.500531] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.530650] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.560629] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.590618] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.620547] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.650628] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.680615] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.710657] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.740622] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.770617] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.800611] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.830584] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.860653] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.890625] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.920612] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.950660] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   49.980626] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.010612] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.040538] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.070524] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.100622] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.100672] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:444: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.100702] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   50.130868] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.160554] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.190628] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.220612] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.250547] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.280671] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.310621] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.340615] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.370790] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.400519] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.430638] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.460618] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.490544] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.520536] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.550610] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.580606] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.610667] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.640605] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.670604] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.700518] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.730525] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.760545] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.790609] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.820547] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.850712] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.880626] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.910613] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.940672] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   50.970613] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.000613] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.030538] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.060525] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.060575] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:444: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.060606] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   51.090535] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.120795] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.150503] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.180542] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.210585] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.240571] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.270606] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.300574] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.330586] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.360592] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.390535] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.420552] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.450731] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.480504] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.510579] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.540583] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.570577] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.600573] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.630574] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.660570] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.690592] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.720533] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.750572] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.780577] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.810545] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.840611] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.870575] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.900569] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.930565] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.960566] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   51.990622] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.020583] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.020633] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:444: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.020664] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   52.050523] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.080549] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.110611] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.140514] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.170570] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.200620] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.230618] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.260613] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.290614] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.320640] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.350667] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.380536] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.410792] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.440704] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.470526] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.500634] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.530665] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.560613] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.590669] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.620615] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.650569] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.680546] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.710526] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.740609] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.770627] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.800628] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.830557] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.860604] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.890665] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.920688] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.950619] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.980618] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.980668] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:444: ISR=00000005, ICR=00013fe0, IBMR=00
    [   52.980698] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   53.010783] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.040540] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.070615] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.100606] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.130528] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.160636] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.190612] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.220610] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.250684] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.280643] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.310677] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.340552] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.370544] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.400577] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.430560] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.460618] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.490621] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.520631] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.550619] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.580672] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.610617] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.640617] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.670612] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.700531] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.730610] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.760607] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.790553] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.820555] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.850708] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.880620] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.910666] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.940617] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:441: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.940667] i2c i2c-0: state:i2c_pxa_wait_bus_not_busy:444: ISR=00000005, ICR=00013fe0, IBMR=00
    [   53.940698] i2c i2c-0: i2c_pxa: timeout waiting for bus free
    [   53.971050] i2c i2c-0: state:i2c_pxa_set_slave:537: ISR=00000005, ICR=00013fe0, IBMR=00

Si quelqu'un a une idée :)

Merci d'avance

Doudoo

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