linux-kernel - [RFC PATCH 0/4] Fix and improve gpmi nand on mx28

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Message-Id: <20211217155512.1877408-1-dario.binacchi@amarulasolutions.com>
Date:   Fri, 17 Dec 2021 16:55:08 +0100
From:   Dario Binacchi <dario.binacchi@...rulasolutions.com>
To:     linux-kernel@...r.kernel.org
Cc:     Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Fabio Estevam <festevam@...il.com>, Han Xu <han.xu@....com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        Michael Turquette <mturquette@...libre.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Richard Weinberger <richard@....at>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-mtd@...ts.infradead.org
Subject: [RFC PATCH 0/4] Fix and improve gpmi nand on mx28

Starting from [1], the series fixes the timings setting of the gpmi
controller for the mx28 architecture, also adding support for fast
edo mode timings. The whole series has been heavily tested with the
mtd kernel test modules, and with repeated write cycles on nand.

The patches of the series were applied after applying patches [2]
and [3] which at the moment are already in nand-next.

[1] https://lore.kernel.org/r/20210702065350.209646-5-ebiggers@kernel.org
[2] 73b68455f8ac ("mtd: rawnand: gpmi: Remove explicit default gpmi clock setting for i.MX6")
[3] 7944f8346983 ("mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings")


Dario Binacchi (3):
  mtd: rawnand: gpmi: support fast edo timings for mx28
  mtd: rawnand: gpmi: fix controller timings setting
  mtd: rawnand: gpmi: validate controller clock rate

Michael Trimarchi (1):
  clk: mxs: imx28: Reparent gpmi clk to ref_gpmi

 drivers/clk/mxs/clk-imx28.c                |  3 +
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 75 +++++++++++++++++-----
 2 files changed, 61 insertions(+), 17 deletions(-)

-- 
2.32.0