Re: [PATCH v2] mtd: rawnand: marvell: check for RDY bits after enabling the IRQ

[Boris Brezillon <boris.brezillon@xxxxxxxxxxx>]

On Fri, 28 Sep 2018 08:40:46 +0200
Boris Brezillon <boris.brezillon@xxxxxxxxxxx> wrote:

> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > ttyS ttyS1: tty_port_close_start: tty->count = 1 port count = 2
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > marvell-nfc f10d0000.nand-controller: Timeout on RDDREQ while draining 
> > FIFO (data) (NDSR: 0x00000810)
> > 
> > ... (RDDREQ messages repeat).  
> 
> Hm, that's weird, unless RDDREQ is a 'clear-on-read' bit, that
> shouldn't happen.

BTW, I dropped the patch.