I am having problems trying to use the net features on a new board configuration. Is it possible that the include/asm-m68k/immap_5282.h file is wrong? It seems to not coincide with Motorola documentation about its FEC registers.
Well. I don´t know if this is the way to do it. Being a newbie, I must be missing something because as I see it, it is imposible that it worked before.
After I rebuild the immap file, the board started transmision but not received nothing. It was necessary to write the packet length on the FEC Receive Control Register ( just as it was necesary to do to make dBUG work - my first step with this new board :-) After it, the TFTP works very fine (curiosly, far finer then dBUG tftp :-)
Can you see what I am doing awrong?
Thank you
PD: This is the immap_5282.file that get the thing to work:
/* Fast ethernet controller registers */ typedef struct fec { uint res1; /* reserved 1000*/ uint fec_ievent; /* interrupt event register 1004*/ uint fec_imask; /* interrupt mask register 1008*/ uint res2; /* reserved 100c*/ uint fec_r_des_active; /* Rx ring updated flag 1010*/ uint fec_x_des_active; /* Tx ring updated flag 1014*/ uint res3[3]; /* reserved 1018*/ uint fec_ecntrl; /* ethernet control register 1024*/ uint res4[6]; /* reserved 1028*/ uint fec_mii_data; /* MII data register 1040*/ uint fec_mii_speed; /* MII speed control register 1044*/ uint res5[7]; /* reserved 1048*/ uint fec_mibc; /* MIB Control/Status register 1064*/ uint res6[7]; /* reserved 1068*/ uint fec_r_cntrl; /* Rx control register 1084*/ uint res7[15]; /* reserved 1088*/ uint fec_x_cntrl; /* Tx control register 10C4*/ uint res8[7]; /* reserved 10C8*/ uint fec_addr_low; /* lower 32 bits of station address 10E4*/ uint fec_addr_high; /* upper 16 bits of station address + type field 10E8*/ uint fec_opd; /* opcode + pause duration 10EC*/ uint res9[10]; /* reserved 10F0*/ uint fec_ihash_table_high; /* upper 32-bits of individual hash table 1118*/ uint fec_ihash_table_low; /* lower 32-bits of individual hash table 111C*/ uint fec_ghash_table_high; /* upper 32-bits of group hash table 1120*/ uint fec_ghash_table_low; /* lower 32-bits of group hash table 1124*/ uint res10[7]; /* reserved 1128*/ uint fec_tfwr; /* Transmit FIFO watermark 1144*/ uint res11; /* reserved 1148*/ uint fec_r_bound; /* FIFO Receive Bound Register = end of RAM (read-only) ??? 114C*/ uint fec_r_fstart; /* FIFO Receive FIfo Start Registers = Rx FIFO start address ??? 1150*/ uint res12[11]; /* reserved 1154*/ uint fec_r_des_start; /* beginning of Rx descriptor ring 1180*/ uint fec_x_des_start; /* beginning of Tx descriptor ring 1184*/ uint fec_r_buff_size; /* Rx buffer size 118C*/ } fec_t;