[PATCH v2 0/3] Altera ASMI Parallel II IP Core
From: matthew . gerlach
Date: Wed Sep 20 2017 - 14:30:01 EST
From: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
This patch set adds a spi-nor flash driver for the Altera ASMI Parallel II
IP Core. This driver was created based on feedback from Marek Vasut,
Cyrill Pitchen, and Michal Suchanek regarding Version 2 of the Altera
Quadspi Controller: https://lkml.org/lkml/2017/6/26/518
The overall problem with Version 2 of the Altera Quadspi Controller and
its driver was the fact that there was much duplication of code and logic
with the spi-nor framework. This new combination of fpga hardware and
software "gets out of the way" of the spi-nor framework. The result is a
much simpler driver with the spi-nor framework performing the bulk of the work.
Patch 1 contains the device tree bindings for the driver for
the Altera ASMI-Parallel II IP Core.
Patch 2 contains the driver code for the Altera ASMI-Parallel II IP Core.
This driver supports being configured via a device tree or with platform
data. In the later case, the memory for the registers has been remapped.
Patch 3 contains a work around for some non-standard behavior of EPCQ flash.
Matthew Gerlach (3):
dt-bindings: mtd: Altera ASMI Parallel II IP Core
mtd: spi-nor: Altera ASMI Parallel II IP Core
mtd: spi-nor: add flag for reading dummy cycles from nv cfg reg
.../devicetree/bindings/mtd/altera-asmip2.txt | 15 +
MAINTAINERS | 7 +
drivers/mtd/spi-nor/Kconfig | 6 +
drivers/mtd/spi-nor/Makefile | 1 +
drivers/mtd/spi-nor/altera-asmip2.c | 478 +++++++++++++++++++++
include/linux/mtd/altera-asmip2.h | 27 ++
6 files changed, 534 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/altera-asmip2.txt
create mode 100644 drivers/mtd/spi-nor/altera-asmip2.c
create mode 100644 include/linux/mtd/altera-asmip2.h