On 23/05/2016 at 09:44:53 +0200, Boris Brezillon wrote : > Hello, > > This patch series provides support for the EBI bus. > > 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. > > Best Regards, > > Boris > > Changes since v8: > - fixed typo in DT bindings doc > > Changes since v7: > - move EBI bus config properties directly in the sub-device node > - prefix all EBI/SMC properties with atmel,smc- > - rework the driver to take the new binding into account > - disable the subdevice when EBI implementation fails to configure > the bus as requested > > Changes since v6: > - rework the binding to put per-device config information into a > separate subnode and have devices connected to the EBI bus > defined as direct children of the EBI node > - make all EBI timings mandatory > - keep adding sub-devices when a failure occurs on one of them > > Changes since v5: > - remove the "atmel,specialized-logic" property: now all devices are > are attached to the SMC logic by default, and specialized drivers > (like the NAND controller one), should change this configuration > manually. > - provide hardware readout to allow partial config description. > This is mainly here to keep existing platforms (where everything > is configured by the bootloader/bootstrap) in working state. > - rename "atmel,tdf-optimized" into "atmel,tdf-mode" and switch from > a boolean to string property to properly support partial config > > 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 (2): > memory: add Atmel EBI (External Bus Interface) driver > memory: atmel-ebi: add DT bindings documentation > Applied, thanks. -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
