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

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Date:	Thu, 4 Dec 2014 11:35:58 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	"Jean-Christophe Plagniol-Villard" <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>
CC:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, "Arnd Bergmann" <arnd@...db.de>,
	Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: Re: [PATCH v5 00/11] memory: add Atmel EBI (External Bus Interface)
 driver

Le 03/12/2014 21:44, Boris Brezillon a écrit :
> 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

The whole series seems okay.

If you reorder the content of the patches as noted, you can add my:
Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

Thanks bye.

>  .../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
> 


-- 
Nicolas Ferre
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