RE: [U-Boot-Users] Can't get ide to work
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@corelatus.se] Sent: Tuesday, February 03, 2004 1:29 PM To: Jerry Walden Cc: u-boot-users@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
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@corelatus.se] Sent: Tuesday, February 03, 2004 1:29 PM To: Jerry Walden Cc: u-boot-users@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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Jerry Walden -
Thomas Lange