linux-kernel - [PATCH v5 0/2] mtd: rawnand: meson: add Amlogic NAND driver support

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Message-ID: <1539839345-14021-1-git-send-email-jianxin.pan@amlogic.com>
Date:   Thu, 18 Oct 2018 13:09:03 +0800
From:   Jianxin Pan <jianxin.pan@...ogic.com>
To:     Boris Brezillon <boris.brezillon@...tlin.com>,
        <linux-mtd@...ts.infradead.org>
CC:     Jianxin Pan <jianxin.pan@...ogic.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Rob Herring <robh@...nel.org>,
        Yixun Lan <yixun.lan@...ogic.com>,
        Liang Yang <liang.yang@...ogic.com>,
        Jian Hu <jian.hu@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v5 0/2] mtd: rawnand: meson: add Amlogic NAND driver support

  These two patches try to add initial NAND driver support for Amlogic Meson
SoCs, current it has been tested on GXL(p212) and AXG(s400) platform.


Changes since v4 at [5]:
 - remove the initial default divider(CLK_DIV_MASK) in meson_nfc_clk_init()
 - dt-bindings: remove staus, add "rx" and "tx" clock, and node rename

Changes since v3 at [4]:
 - remove partition table and some used props from dt-bindings 

Changes since v2 at [3]:
 - remove some hardcode time value, like twb
 - use dev wait R/B instead of nand_soft_waitrdy
 - implement nfc ecc init by ecc helper
 - rework nfc buffer init to register the maximun buffer when several chips
 - free nfc buffer when error and cleanup
 - add variable to teack all the already assigned CS lines
 - fix mtd->name use the first cs line only
 - remove dt "nand-enable-scrambler" and use NAND_NEED_SCRAMBLING instead.
 - move setuping ECC fileds after the identification phase
 - use nand_scan() and attach_chip()
 - check one event to return IRQ_NONE
 - delete cast when of_device_get_match_data
 - use nand_controller_init() helper
 - remove nfc driver complains when calling devm_ioremap_resource
 - clear irqs before setting up irq handler

Changes since v1 at [1]:
  - adopt property amlogic,nand-enable-scrambler - thanks Martin
  - drop nand pins in DT
  - convert clk access to emmc clkc model 
  - fix regiser field definition alignment
  - drop nand-user-mode 
  - parse cs id from DT
  - rework n2m, m2n function
  - explain why insert two "IDLE" command
  - implement exec_op()
  - drop meson_nfc_get_nand_chip_dts()
  - release resource once error occur in meson_nfc_nand_chips_init(), 
  - call nand_cleanup(nand) once mtd_device_register fail

Items not addressed ( or confirmed ) in this version:
  - convert to ECC conf helper() 
  - convert to dma coherent API
  - how to construct mtd->name

[1] https://lkml.kernel.org/r/20180613161314.14894-1-yixun.lan@amlogic.com
[2] https://lkml.kernel.org/r/20180712211244.11428-1-yixun.lan@amlogic.com
[3] https://lkml.kernel.org/r/20180719094612.5833-1-yixun.lan@amlogic.com
[4] https://lkml.kernel.org/r/1536317831-58056-1-git-send-email-jianxin.pan@amlogic.com/
[5] https://lore.kernel.org/r/1537433449-65213-2-git-send-email-jianxin.pan@amlogic.com/

Liang Yang (2):
  dt-bindings: nand: meson: add Amlogic NAND controller driver
  mtd: rawnand: meson: add support for Amlogic NAND flash controller

 .../devicetree/bindings/mtd/amlogic,meson-nand.txt |   60 +
 drivers/mtd/nand/raw/Kconfig                       |   10 +
 drivers/mtd/nand/raw/Makefile                      |    1 +
 drivers/mtd/nand/raw/meson_nand.c                  | 1370 ++++++++++++++++++++
 4 files changed, 1441 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
 create mode 100644 drivers/mtd/nand/raw/meson_nand.c

-- 
1.9.1