int chans; /* map size, must be 2^n */
/*-------------------------------- mailboxes */
unsigned long mbx_start[NR_MBX];/* start addresses */
+ dma_addr_t mbx_dma[NR_MBX];
u16 mbx_end[NR_MBX]; /* end offset (in bytes) */
/*-------------------------------- other pointers */
u32 pool_base; /* Free buffer pool dsc (word addr) */