linux-kernel - [PATCH v2 00/12] add STM32 FMC2 controller drivers

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Date:   Wed, 15 Apr 2020 17:57:24 +0200
From:   Christophe Kerello <christophe.kerello@...com>
To:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <lee.jones@...aro.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <tony@...mide.com>
CC:     <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <devicetree@...r.kernel.org>, <marex@...x.de>,
        Christophe Kerello <christophe.kerello@...com>
Subject: [PATCH v2 00/12] add STM32 FMC2 controller drivers

The FMC2 functional block makes the interface with: synchronous and
asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
peripherals) and NAND flash memories.
Its main purposes are:
  - to translate AXI transactions into the appropriate external device
    protocol
  - to meet the access time requirements of the external devices
All external devices share the addresses, data and control signals with the
controller. Each external device is accessed by means of a unique Chip
Select. The FMC2 performs only one access at a time to an external device.

Changes in v2:
 - use of regmap_bulk_write/regmap_bulk_read APIs
 - remove ops from stm32_fmc2 structure
 - add 2 APIs to manage FMC2 enable/disable
 - add 2 APIs to manage FMC2 NWAIT shared signal

Christophe Kerello (12):
  dt-bindings: mfd: stm32-fmc2: add STM32 FMC2 controller documentation
  mfd: stm32-fmc2: add STM32 FMC2 controller driver
  bus: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver
  mtd: rawnand: stm32_fmc2: manage all errors cases at probe time
  mtd: rawnand: stm32_fmc2: remove useless inline comments
  mtd: rawnand: stm32_fmc2: use FMC2_TIMEOUT_MS for timeouts
  mtd: rawnand: stm32_fmc2: cleanup
  mtd: rawnand: stm32_fmc2: use FIELD_PREP/FIELD_GET macros
  mtd: rawnand: stm32_fmc2: move all registers
  mtd: rawnand: stm32_fmc2: use regmap APIs
  mtd: rawnand: stm32_fmc2: use stm32_fmc2 structure in nfc controller
  mtd: rawnand: stm32_fmc2: add new MP1 compatible string

 .../devicetree/bindings/mfd/st,stm32-fmc2.yaml     |  370 ++++++
 drivers/bus/Kconfig                                |   11 +
 drivers/bus/Makefile                               |    1 +
 drivers/bus/stm32-fmc2-ebi.c                       | 1091 +++++++++++++++++
 drivers/mfd/Kconfig                                |   12 +
 drivers/mfd/Makefile                               |    1 +
 drivers/mfd/stm32-fmc2.c                           |  136 +++
 drivers/mtd/nand/raw/Kconfig                       |    3 +
 drivers/mtd/nand/raw/stm32_fmc2_nand.c             | 1277 +++++++++-----------
 include/linux/mfd/stm32-fmc2.h                     |  225 ++++
 10 files changed, 2413 insertions(+), 714 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/st,stm32-fmc2.yaml
 create mode 100644 drivers/bus/stm32-fmc2-ebi.c
 create mode 100644 drivers/mfd/stm32-fmc2.c
 create mode 100644 include/linux/mfd/stm32-fmc2.h

-- 
1.9.1