> -----Original Message----- > From: Rob Herring [mailto:[email protected]] > Sent: 2016年5月10日 4:13 > To: Yang, Wenyou <[email protected]> > Cc: Brian Norris <[email protected]>; David Woodhouse > <[email protected]>; Pawel Moll <[email protected]>; Mark Brown > <[email protected]>; Ian Campbell <[email protected]>; Kumar > Gala <[email protected]>; [email protected]; linux- > [email protected]; [email protected]; Ferre, Nicolas > <[email protected]>; Alexandre Belloni <alexandre.belloni@free- > electrons.com>; Jean-Christophe Plagniol-Villard <[email protected]>; > Russell King <[email protected]>; Josh Wu <[email protected]>; > [email protected] > Subject: Re: [PATCH 0/2] mtd: atmel_nand: remove compatible "atmel,sama5d4- > nfc" > > On Mon, May 09, 2016 at 02:51:17PM +0800, Wenyou Yang wrote: > > It is a datasheet bug, for current SoCs, the RB_EDGE3(i.e. bit 27) of > > HSMC_SR register does not exist, the RB_EDGE0 (i.e. bit 24) is the > > ready/busy line edge status bit. So the compatible "atmel,sama5d4-nfc" > > is unneeded. > > The compatible is needed if the SOC still exists. You can list both for the > sama5d4 > if the block is the same.
The NFC IP of SAMA5D4 is same as SAMA5D2's, SAMA5D4 hase this issue. This compatible can be removed. Best Regards, Wenyou Yang
