[PATCH v5 00/11] memory: add Atmel EBI (External Bus Interface) driver

[Lee Jones]

On Tue, 13 Jan 2015, Alexandre Belloni wrote:

> Hi Lee,
> 
> There has not been any comment on that series since a while and we have
> other series on hold, waiting for the first 4 patches to be taken.
> 
> Could you have a look at those 4 patches and take them if you don't have
> any comment ?

Sorry for the delay, I have been on vacation.

I'm not sure why why those patches are preventing the application of
the remainder of the set.  They are only documentation entries and I
have Acked them already?

> On 03/12/2014 at 21:44:04 +0100, Boris Brezillon wrote :
> > The EBI (External Bus Interface) is used to access external peripherals
> > (NOR, SRAM, NAND, and other specific devices like ethernet controllers).
> > Each device is assigned a CS line and an address range and can have its
> > own configuration (timings, access mode, bus width, ...).
> > This driver provides a generic DT binding to configure a device according
> > to its requirements.
> > For specific device controllers (like the NAND one) the SMC timings
> > should be configured by the controller driver through the matrix and
> > smc syscon regmaps.
> > 
> > The first 4 patches introduce 2 syscon devices needed to configure the
> > EBI bus, patch 5 and 6 adds support for the EBI bus, and the remaining
> > patches declares the EBI related nodes in sama5d3 dts[i] files.
> > 
> > Changes since v4:
> > - fix inconsistencies in SMC and MATRIX registers definition
> > - add missing compatible strings for at91sam9rl SoC
> > - fix DT bindings documentation
> > - replace "atmel,generic-dev" property by "atmel,specialized-logic"
> > 
> > Changes since v3:
> > - added AT91_MATRIX_USBPUCR_PUON definition
> > - removed useless macros (those directly returning SoC specific register
> >   offsets)
> > - use syscon_regmap_lookup_by_phandle instead of of_parse_phandle +
> >   syscon_node_to_regmap
> > - drop AT91_EBICSA_REGFIELD and AT91_MULTI_EBICSA_REGFIELD macros
> > 
> > Changes since v2:
> > - minor fixes int DT bindings doc
> > - fix SMC macros
> > - make use of SMC macros defined in include/linux/mfd/syscon/atmel-smc.h
> > 
> > Changes since v1:
> > - almost everything :-)
> > 
> > Boris Brezillon (11):
> >   mfd: syscon: Add atmel-matrix registers definition
> >   mfd: syscon: Add Atmel Matrix bus DT binding documentation
> >   mfd: syscon: Add atmel-smc registers definition
> >   mfd: syscon: Add Atmel SMC binding doc
> >   memory: add Atmel EBI (External Bus Interface) driver
> >   memory: atmel-ebi: add DT bindings documentation
> >   ARM: at91: select ATMEL_EBI when compiling a kernel for at91sam9 or
> >     sama5d3
> >   ARM: at91/dt: add HSMC (Static Memory Controller) node in sama5d3 dtsi
> >   ARM: at91/dt: add matrix node in sama5d3 dtsi
> >   ARM: at91/dt: add EBI (External Bus Interface) node in sama5d3 dtsi
> >   ARM: at91/dt: add NOR definition in sama5d3xcm dtsi
> > 
> >  .../bindings/memory-controllers/atmel-ebi.txt      | 155 ++++++
> >  .../devicetree/bindings/mfd/atmel-matrix.txt       |  24 +
> >  .../devicetree/bindings/mfd/atmel-smc.txt          |  19 +
> >  arch/arm/boot/dts/sama5d3.dtsi                     |  93 ++++
> >  arch/arm/boot/dts/sama5d3xcm.dtsi                  |  33 ++
> >  arch/arm/mach-at91/Kconfig                         |   2 +
> >  drivers/memory/Kconfig                             |  11 +
> >  drivers/memory/Makefile                            |   1 +
> >  drivers/memory/atmel-ebi.c                         | 579 +++++++++++++++++++++
> >  include/linux/mfd/syscon/atmel-matrix.h            | 117 +++++
> >  include/linux/mfd/syscon/atmel-smc.h               | 173 ++++++
> >  11 files changed, 1207 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/memory-controllers/atmel-ebi.txt
> >  create mode 100644 Documentation/devicetree/bindings/mfd/atmel-matrix.txt
> >  create mode 100644 Documentation/devicetree/bindings/mfd/atmel-smc.txt
> >  create mode 100644 drivers/memory/atmel-ebi.c
> >  create mode 100644 include/linux/mfd/syscon/atmel-matrix.h
> >  create mode 100644 include/linux/mfd/syscon/atmel-smc.h
> > 
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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