[U-Boot-Users] Can't get ide to work

Jerry Walden
2004-02-04T18:09:13Z

Thanks for the response.

Okay - I found the TLB mapping for CFG_PCMCIA_MEM_ADDR (0x20000000),
however the IDE device is at AU1X_SOCK0_IO (0xF00000000). True - the
PCMCIA is at 0x20000000, however not the ide device. If I look at the
YAMON source - there is a mapping done for 0xF00000000.

I don't see it in u-boot. Where am I going wrong?

Thanks

-----Original Message-----
From: Thomas Lange [mailto:thomas at corelatus.se]
Sent: Tuesday, February 03, 2004 1:29 PM
To: Jerry Walden
Cc: u-boot-users at lists.sourceforge.net
Subject: Re: [U-Boot-Users] Can't get ide to work

TLB is created in board/dbau1x00/dbau1x00.c

Could be an endian problem, i.e. you read the wrong byte.

/Thomas

Jerry Walden wrote:
> Our board is based on the Alchemy DBAu1500
>
> We are using a compact flash card that as an IDE drive (tied into the
> IDE interface of the CPU just like the DBAu1500).
>
> During ide_init, the ATA_STATUS byte is read, and there is a wait loop

> which waits for the status to be ready. This loop always times out.
> I am trying to debug this. Tracing through ide_inb, and ide_outb, the

> address of the interface is fine CFG_PCMCIA_MEM_ADDR (0x20000000). I
> know that there has to be some TLB mapping between CFG_PCMCIA_MEM_ADDR

> (0x20000000) and AU1X_SOCK0_IO
> (F00000000) - I just cannot find where this is done.
>
> Any suggestions?
>
> Thanks