[PATCH 0/6] net/e1000: more cleanups and ways to access i210 storage

Sascha Hauer s.hauer at pengutronix.de
Fri Nov 24 01:06:43 PST 2017

On Wed, Nov 22, 2017 at 11:22:25AM +0100, Uwe Kleine-König wrote:
> Hello,
> these are a few patches that cumulated here related to the i210 network
> controller.
> These are nearly good enough to populate the attached flash with a valid
> firmware (which you still need to have yourself) on all machines I have
> access to.
> There is still one (to me) known problem: When the flash doesn't contain
> a valid image, accessing the eeprom (which is a simulated device on i210
> that is backed up by shadow RAM and the two first pages of flash) gives
> the contents of iNVM instead of the expected default eeprom. That
> results in a few wrong turns in the code but they are not grave enough
> to stop being able to write a valid firmware image.
> A bit that is still missing is that a customer machine uses an flash
> that is write protected at power on. An i210 with an programmed flash is
> clever enough to remove the write protection before writing to it, but
> that doesn't help when the flash is not programmed (tin opener inside).
> I have a prototype that can remove the write protection with a
> cryptic command but that's not ready for prime time yet.
> Best regards
> Uwe
> Uwe Kleine-König (6):
>   net/e1000: fix coding style at a few locations
>   net/e1000: don't use the eeprom word size as timeout to get a
>     semaphore
>   net/e1000: reorder functions
>   net/e1000: provide access to iNVM even if a flash is present
>   net/e1000: fix size of invm device
>   net/e1000: provide device for accessing emulated eeprom
>  drivers/net/e1000/e1000.h  |   8 +-
>  drivers/net/e1000/eeprom.c | 324 ++++++++++++++++++++++++++-------------------
>  drivers/net/e1000/main.c   |   6 +-
>  3 files changed, 196 insertions(+), 142 deletions(-)

Applied, thanks


Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

More information about the barebox mailing list