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

Thomas Lange
2004-02-04T18:51:17Z

tlb 20 is mapped to phy 0xF00000000 ( not used )
tlb 21 is mapped to phy 0xF40000000 ( not used )
tlb 22 is mapped to phy 0xF80000000

TLB 22 was enough to make CF work on my dbau1000 board
( only tested in big endian mode ).

/Thomas

Jerry Walden wrote:
> 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
>
>
>
>
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