From: Ludovic Barre <ludovic.Barre@st.com>
To: Cyrille Pitchen <cyrille.pitchen@atmel.com>,
Marek Vasut <marek.vasut@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Richard Weinberger <richard@nod.at>,
Alexandre Torgue <alexandre.torgue@st.com>,
Rob Herring <robh+dt@kernel.org>, <linux-mtd@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: [PATCH v4 0/2] mtd: spi-nor: add stm32 qspi driver
Date: Thu, 13 Apr 2017 19:15:55 +0200 [thread overview]
Message-ID: <1492103757-22375-1-git-send-email-ludovic.Barre@st.com> (raw)
From: Ludovic Barre <ludovic.barre@st.com>
This patch set adds a SPI-NOR driver for stm32 QSPI controller.
It is a specialized SPI interface for serial Flash devices.
It supports 1 or 2 Flash device with single, dual and quad SPI Flash memories.
It can operate in any of the following modes:
-indirect mode: all the operations are performed using the quadspi
registers
-read memory-mapped mode: the external Flash memory is mapped to the
microcontroller address space and is seen by the system as if it was
an internal memory
Changes in v4:
-unsigned bitfields: (1U << 8)
-remove "mtd->priv"
-error management: issue on no mtd device registered
-remove braces in stm32_qspi_mtd_free
Changes in v3:
-dt-bindings: qspi_mm not optional
-dt-bindings: see ../spi/spi-bus.txt
-dt-bindings: spi@...
-cmd flat struct
-ratelimit
-macro to avoid hard value "25"
Changes in v2:
-awful construct: s/u32/u8
-add define for timeout
-Use a helper variable
-add comment on "stm32 qspi controller fsize issue
Ludovic Barre (2):
dt-bindings: Document the STM32 QSPI bindings
mtd: spi-nor: add driver for STM32 quad spi flash controller
.../devicetree/bindings/mtd/stm32-quadspi.txt | 43 ++
drivers/mtd/spi-nor/Kconfig | 7 +
drivers/mtd/spi-nor/Makefile | 1 +
drivers/mtd/spi-nor/stm32-quadspi.c | 694 +++++++++++++++++++++
4 files changed, 745 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/stm32-quadspi.txt
create mode 100644 drivers/mtd/spi-nor/stm32-quadspi.c
--
2.7.4
next reply other threads:[~2017-04-13 17:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-13 17:15 Ludovic Barre [this message]
2017-04-13 17:15 ` [PATCH v4 1/2] dt-bindings: Document the STM32 QSPI bindings Ludovic Barre
2017-04-16 16:53 ` Cyrille Pitchen
2017-05-02 1:09 ` Brian Norris
2017-05-03 20:49 ` Cyrille Pitchen
2017-04-19 22:35 ` Rob Herring
2017-04-13 17:15 ` [PATCH v4 2/2] mtd: spi-nor: add driver for STM32 quad spi flash controller Ludovic Barre
2017-04-14 16:15 ` Marek Vasut
2017-04-16 17:11 ` Cyrille Pitchen
2017-05-02 1:05 ` Brian Norris
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