Hi all,

Im configuring my board[MPC8540] for CF Support [Thru LCS]. My Compact Flash Base is F8800000. Port Size 16 bit

I configured BR1 and OR1 and I accessed the CF thru Chip Select.But I need to probe thru IDE .

#define CFG_PCMCIA_MEM_ADDR 0xF8800000 #define CFG_PCMCIA_MEM_SIZE 128 << 20

#define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR

In Uboot ,I saw that the offset for CFG_ATA_DATA is defined as follows. Can anyone explain thsi whay we need to specify the offset as this..or we have to specify in different manner.

/* Offset for data I/O */ #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE+320) /* Offset for normal register accesses */ #define CFG_ATA_REG_OFFSET (2*CFG_PCMCIA_MEM_SIZE*320) /* Offset for alternate registers */ #define CFG_ATA_ALT_OFFSET 0x0000

Thanks and Regards, Sudhakar V