Re: use xilinx gpio from linux on a ppc405

From: Jan Mueller <jamuelle@ee•ethz.ch>
To: "xavier.vvv" <xavier.vvv@gmail•com>
Cc: linuxppc-embedded@ozlabs•org
Subject: Re: use xilinx gpio from linux on a ppc405
Date: Mon, 15 Dec 2008 12:18:09 +0100	[thread overview]
Message-ID: <20081215111809.GA22007@ee.ethz.ch> (raw)
In-Reply-To: <21010485.post@talk.nabble.com>

Hi,

This is interesting...

I have the sysace working but the ethernet not.

Just an idea:
For the sysace driver in the 2.6 kernel the old device file
entries don't work anymore.

Do you have the correct device nodes in /dev? You can create those
nodes with the following commands:

# mknod -m 660 xsa b 254 0
# mknod -m 660 xsa1 b 254 1
# mknod -m 660 xsa2 b 254 2
# mknod -m 660 xsa3 b 254 3

Concerning the ethernet...:  ;-)
Which IP Type do you have for the Ethernet_MAC? Mine is
xps_ethernetlite but I can't find a linux driver which seems to
work with this one.

regards,
Jan

On Mon, Dec 15, 2008 at 01:12:18 -0800, xavier.vvv wrote:
> 
> Hi,
> I have installed linux 2.6 on the xupv2p board. I have uart, ethernet, but
> sysace device is not working.
> I have seen in this forum that other persons have the problem.
> Could you tell me if you have sysace driver working?
> Also I want to install xenomai, but the problem is that linux from denx tree
> does not support opb_emac ethernet 
> driver. I need Ethernet because I use nfs to access the root file system.
> So another question is: 
> when you installed xenomai, where was the rfs? and did you used Ethernet
> driver?
> 
> Thanks
> 
> 
> Joachim Meyer wrote:
> > 
> > Hi
> > 
> > I installed (with some help of this mailinglist) a Linux (Kernel 2.6.23
> > from xilinx) on a ppc405 of a Virtex 2 PRO on a XUPV2P. Then I installed
> > Xenomai. Now I want to control some devices from the Board, so I thought
> > first I try to turn the LEDs on and of. I enabled the LEDs in my Design
> > without interrupt and also compiled the Kernel with Xilinx OPG GPIO
> > support. But I don't know realy how to go on. I found only 2 pages in the
> > internet which gave me a bit of information, but nothing helped me.
> > Can Anyone explain me what I have to do, or send me a link to a page where
> > it is explained?
> > 
> > The 2 pages I found:
> > --------------------------
> > http://osdir.com/ml/linux.uclinux.microblaze/2005-08/msg00120.html
> > http://www.tango-controls.org/Members/jbutanowicz/tango-on-ml403
> > 
> > The output of the kernel while booting:
> > -------------------------------------------------
> > Linux version 2.6.23xlnx (meyer@tiv007) (gcc version 3.4.5) #1 Thu Jul 17
> > 12:10:27 CEST 2008
> > Xilinx Generic PowerPC board support package (Xilinx XUPV2P) (Virtex-II
> > Pro)
> > Zone PFN ranges:
> >   DMA             0 ->    65536
> >   Normal      65536 ->    65536
> > Movable zone start PFN for each node
> > early_node_map[1] active PFN ranges
> >     0:        0 ->    65536
> > Built 1 zonelists in Zone order.  Total pages: 65024
> > Kernel command line: console=ttyUL0 root=/dev/xsa2 rw
> > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000
> > PID hash table entries: 1024 (order: 10, 4096 bytes)
> > Console: colour dummy device 80x25
> > Console: Xilinx UART Lite
> > Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> > Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> > Memory: 257664k available (1580k kernel code, 500k data, 96k init, 0k
> > highmem)
> > Mount-cache hash table entries: 512
> > NET: Registered protocol family 16
> > Registering device uartlite:0
> > Registering device xsysace:0
> > Registering device xilinx_emac:0
> > NET: Registered protocol family 2
> > IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
> > TCP established hash table entries: 8192 (order: 4, 65536 bytes)
> > TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
> > TCP: Hash tables configured (established 8192 bind 8192)
> > TCP reno registered
> > io scheduler noop registered
> > io scheduler anticipatory registered (default)
> > io scheduler deadline registered
> > io scheduler cfq registered
> > uartlite.0: ttyUL0 at MMIO 0x40600003 (irq = 3) is a uartlite
> > console [ttyUL0] enabled
> > RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize
> > System ACE at 0x41800000 mapped to 0xD1020000, irq=1, 500472KB
> >  xsa: xsa1 xsa2
> > tun: Universal TUN/TAP device driver, 1.6
> > tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm•com>
> > xilinx_emac xilinx_emac.0: MAC address is now  2: 0: 0: 0: 0: 0
> > XEmac: using fifo mode.
> > XEmac: Detected PHY at address 0, ManufID 0x0013, Rev. 0x78e2.
> > eth0: Dropping NETIF_F_SG since no checksum feature.
> > eth0: Xilinx 10/100 EMAC at 0x80400000 mapped to 0xD1040000, irq=2
> > eth0: XEmac id 1.1a, block id 32, type 1
> > mice: PS/2 mouse device common for all mice
> > TCP cubic registered
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > kjournald starting.  Commit interval 5 seconds
> > EXT3-fs warning: maximal mount count reached, running e2fsck is
> > recommended
> > EXT3 FS on xsa2, internal journal
> > EXT3-fs: recovery complete.
> > EXT3-fs: mounted filesystem with ordered data mode.
> > VFS: Mounted root (ext3 filesystem).
> > Freeing unused kernel memory: 96k init
> > INIT: version 2.85 booting
> >                 Welcome to DENX Embedded Linux Environment
> >                 Press 'I' to enter interactive startup.
> > Building the cache [  OK  ]
> >  storage network audio done[  OK  ]
> > Cannot access the Hardware Clock via any known method.
> > Use the --debug option to see the details of our search for an access
> > method.
> > Setting clock : Thu Jan  1 00:00:20 UTC 1970 [  OK  ]
> > Setting hostname localhost:  [  OK  ]
> > Checking filesystems
> > Checking all file systems.
> > [  OK  ]
> > Mounting local filesystems:  [  OK  ]
> > Enabling swap space:  [  OK  ]
> > INIT: Entering runlevel: 3
> > Entering non-interactive startup
> > Bringing up loopback interface:  [  OK  ]
> > Starting system logger: [  OK  ]
> > Starting kernel logger: [  OK  ]
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > XSysAce: Queue is plugged
> > Starting portmap: [  OK  ]
> > Mounting NFS filesystems:  XSysAce: Queue is plugged
> > [  OK  ]
> > XSysAce: Queue is plugged
> > Mounting other filesystems:  [  OK  ]
> > 
> > DENX ELDK version 4.1 build 2007-01-19
> > Linux 2.6.23xlnx on a ppc
> > 
> > localhost login:
> > 
> > 
> > 
> > 
> > 
> > Thanks and Greez
> > Joachim
> > _________________________________________________________________________
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> > 
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> > 
> > 
> 
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