Hi all, Previously, I ask for a help [1] and thankfully Sascha replied with helpful comments then I have tried many dts configurations but I still could not run state framework. My main goal is to update a system using RAUC [2] so I need state framework of barebox. I would like to use EEPROM as a storage device for barebox state. Here is an example dts that I think, it should have work: state: state@0 { magic = <0x27031977>; compatible = "barebox,state"; backend-type = "dtb"; backend = &state_partition; foo { reg = <0x00 0x4>; type = "uint32"; default = <0x0>; }; bar { reg = <0x10 0x4>; type = "enum32"; names = "baz", "qux"; default = <1>; }; }; i2c_eeprom: eeprom@52 { compatible = "atmel,24c32"; pagesize = <32>; reg = <0x52>; state_partition: partition@1000 { reg = <0x1000 0x2000>; }; }; If I try to load manually, I can observe in the of_dump: state@0 { magic = <0x27031977>; compatible = "barebox,state"; backend-type = "dtb"; backend = "/ocp/i2c@44e0b000/eeprom@52/partition@1000"; foo { reg = <0x0 0x4>; type = "uint32"; default = <0x0>; }; bar { reg = <0x10 0x4>; type = "enum32"; names = "baz", "qux"; default = <0x1>; }; }; But, if I try to probe, device reboots: barebox@Phytec phyCORE AM335x:/ oftree -p register_device: already registered 40300000.ocmcram unable to handle paging request at address 0x70636f2f pc : [<8ff35694>] lr : [<8ff2c875>] sp : 8ffef800 ip : 00000000 fp : 8ff67bdb r10: 00000000 r9 : 00000002 r8 : 00000000 r7 : 880ec4e0 r6 : 880ec528 r5 : 8ff85268 r4 : 87ff0630 r3 : 0000002f r2 : 880ec528 r1 : 70636f2f r0 : 880ec528 Flags: NzCv IRQs off FIQs on Mode SVC_32 [<8ff35694>] (strcmp+0xe/0x16) from [<8ff2c875>] (of_find_device_by_node_path+0x29/0x34) [<8ff2c875>] (of_find_device_by_node_path+0x29/0x34) from [<8ff2c893>] (__of_find_path+0x13/0x88) [<8ff2c893>] (__of_find_path+0x13/0x88) from [<8ff2c96f>] (of_find_path+0x5b/0x80) [<8ff2c96f>] (of_find_path+0x5b/0x80) from [<8ff2a1b7>] (state_probe+0x63/0x128) [<8ff2a1b7>] (state_probe+0x63/0x128) from [<8ff09d61>] (device_probe+0x21/0x68) [<8ff09d61>] (device_probe+0x21/0x68) from [<8ff09dcb>] (match.part.0+0x23/0x28) [<8ff09dcb>] (match.part.0+0x23/0x28) from [<8ff0a1ad>] (register_device+0xa9/0xcc) [<8ff0a1ad>] (register_device+0xa9/0xcc) from [<8ff2c6d5>] (of_platform_device_create+0xd5/0x1ac) [<8ff2c6d5>] (of_platform_device_create+0xd5/0x1ac) from [<8ff2c7d3>] (of_platform_bus_create+0x27/0x60) [<8ff2c7d3>] (of_platform_bus_create+0x27/0x60) from [<8ff2c83b>] (of_platform_populate+0x2f/0x40) [<8ff2c83b>] (of_platform_populate+0x2f/0x40) from [<8ff2bd6b>] (of_probe+0x3f/0x64) [<8ff2bd6b>] (of_probe+0x3f/0x64) from [<8ff32b91>] (do_oftree+0xf5/0x114) [<8ff32b91>] (do_oftree+0xf5/0x114) from [<8ff03095>] (execute_command+0x21/0x48) [<8ff03095>] (execute_command+0x21/0x48) from [<8ff0712b>] (run_list_real+0x5a3/0x604) [<8ff0712b>] (run_list_real+0x5a3/0x604) from [<8ff06a8d>] (parse_stream_outer+0x105/0x15c) [<8ff06a8d>] (parse_stream_outer+0x105/0x15c) from [<8ff0734f>] (run_shell+0x33/0x60) [<8ff0734f>] (run_shell+0x33/0x60) from [<8ff03095>] (execute_command+0x21/0x48) [<8ff03095>] (execute_command+0x21/0x48) from [<8ff0712b>] (run_list_real+0x5a3/0x604) [<8ff0712b>] (run_list_real+0x5a3/0x604) from [<8ff06e1f>] (run_list_real+0x297/0x604) [<8ff53ca1>] (unwind_backtrace+0x1/0x58) from [<8ff00ba9>] (panic+0x1d/0x34) [<8ff00ba9>] (panic+0x1d/0x34) from [<8ff5412d>] (do_exception+0xd/0x10) [<8ff5412d>] (do_exception+0xd/0x10) from [<8ff5418d>] (do_data_abort+0x21/0x2c) [<8ff5418d>] (do_data_abort+0x21/0x2c) from [<8ff53e94>] (do_abort_6+0x48/0x54) Even if I change backend type as raw, I get the same result. I do not know what else I can do. Thank you for your time. [1] http://lists.infradead.org/pipermail/barebox/2017-March/029590.html [2] https://rauc.readthedocs.io/en/latest/index.html -- Çağlar Kilimci _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox