Re: SystemAce and mb-uClinux (was RE: [microblaze-uclinux] Problemswith networking)

[Peter Ryser <Peter.Ryser@xilinx.com>]

Eric,

normally, we use the SysACE with devfs enabled. In that case the device 
nodes are automatically generated and you should be able to mount your 
CF with
mount /dev/xsysace/disc0/part0 /mnt

In your case you might want to add another device node 
xsyseacea1,b,254,1 and then mount with
mount /dev/xsysacea1 /mnt

- Peter


Hansen Eric wrote:

>Hello fellow developers,
>
>Peter thanks for for your hint. I would not have checked that.
>Nevertheless the soures from penguinppc already had
>XSA_ADDR_ALIGN 1 set, so everything should be ok.
>By now I have modified the Makefiles and Config.in.
>I did some little changes in adapter.c. Linux is now
>booting with the SystemAce driver enabled.
>
>After some fiddling around with kernel configurations,
>I finally made up a kernel which seems to work ok.
>
>Afterwards I had to find a way to mount the CompactFlash.
>As I understood from the uClinux distribution I have to
>generate the device files. I did so by adding 
>a couple of entries like xsysacea,b,254,0 ...
>to the vendors/Insight/XC../Makefile. This
>generates the devices in the romfs.
>Is this the right way to generate the devices?
>Do I have to take care about anything else?
>(Btw. I have got the major number the sysace from 
>/proc/devices)
>
>My bootlog shows something like:
><snip>
>  Partition check:
>   xsysacea: xsysacea1
>  System ACE at 0xCF000000 mapped to 0xCF000000, irq=4, 125440KB
></snip>
>
>Unfortunatly I am still not able to mount the CFCard.
>When trying to mount with -t msdos or -t vfat 
>I receive the following message:
>
><snip>
>FAT: bogus logical sector size 20487
>VFS: Can't find a valid FAT filesystem on dev fe:00.
></snip>
>
>The CFCard is formatted according the xilinx's SystemAce
>manual with format [...] /a:2048. I am not quite shure whether 
>this might cause problems? 
>To be shure I formatted another CFCard with windows.
>With this card I get an error stating that the JTAG Contoller 
>can not read the configuration. XSA_ERR_CFG_READ. This
>comes not suprising as I do not have a configuration
>file on the CompactFlash card. Nevertheless it should
>be posibble to use the card as block device or am
>I wrong?
>
>Thanks
>Erik
>
>-----Original Message-----
>From: Peter Ryser [mailto:Peter.Ryser@xilinx.com] 
>Sent: Wednesday, November 12, 2003 2:53 AM
>To: microblaze-uclinux@itee.uq.edu.au
>Subject: Re: [microblaze-uclinux] Problems with networking
>
>
>Erik,
>
>on System ACE CF please check that in xsysace_l.h you see
>#define XSA_ADDR_ALIGN      1
>and not
>#define XSA_ADDR_ALIGN      4
>when you use System ACE CF in an EDK design.
>
>- Peter
>
>
>
>  
>

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