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From: Jens Gehrlein <sew_s@tqs.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] smc911x: cannot pass the MAC address from U-Boot to the Linux driver via chip registers
Date: Fri, 16 May 2008 17:15:41 +0200	[thread overview]
Message-ID: <482DA51D.7070705@tqs.de> (raw)

Hi,

in the smc911x U-Boot driver the call of eth_halt() causes a reset of 
the ethernet controller. This also resets the MAC address in the 
according chip registers. This makes it impossible to pass the MAC 
address to an ARM kernel because the smc911x linux driver reads the MAC 
address from the MAC registers and complains if the found values are 
invalid.

Any ideas to solve this problem, e.g.
- rewriting the MAC address after reset?
- not to reset the chip?
- another passing mechanism to the kernel?
- or ...

Best Regards,
Jens

             reply	other threads:[~2008-05-16 15:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-16 15:15 Jens Gehrlein [this message]
2008-05-16 15:59 ` [U-Boot-Users] smc911x: cannot pass the MAC address from U-Boot to the Linux driver via chip registers Wolfgang Denk

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