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: mtd: nand: Driver for Evatronix NAND flash controller

RFC PATCH Ricard Wanderlof 1 participant 1 message Dec 9, 2014 1 message not in the archive Memory technology devices (MTD)

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A message that is not in the archive (sent off-list or not yet received): [email protected]

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Quoted 9 lines · Oleksij Rempel
Quoted 5 lines

From: Ricard Wanderlof <ricardw at axis.com>

This is a request for comments for a driver for the Evatronix NANDFLASH-CTRL IP (version 1.15). It is designed to be applied to Linux 3.16 or the current linux-mtd tree.

it looks like we are working on a driver for same IP core. I have working HW, and working driver which need need reworking. Both driver are not upstream ready. So it will be good if we collaborate with each other :)

After an off-list discussion between Oleksij and myself it seems that while the NAND flash controller in the SoC Oleksij is using (Alphascale ASM9260T) and the one I wrote the driver for above come from a common origin, they are fairly different when it comes to detail.

Looking at the documentation, the names of registers and bit fields etc clearly show a common origin, but there are a lot of details which differ as well, including the actual presence of certain registers, register offsets, bitfield locations within registers, the interpretation of bitfields with the same name, etc. It is also not clear from a cursory glance how much the underlying implementation differs between the IP versions.

Consequently we've decided that it at this time we cannot coordinate these two drivers.

/Ricard

Signature · 3 lines
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30