[OpenWrt-Devel] [PATCH v5] linux: add support of Synopsys ARC770-based boards
Alexey.Brodkin at synopsys.com
Tue Nov 17 08:47:32 EST 2015
Hi Felix, Jonas,
On Fri, 2015-11-13 at 21:39 +0300, Alexey Brodkin wrote:
> This patch introduces support of new boards with ARC cores.
>  Synopsys SDP board
> This is a new-generation development board from Synopsys that
> consists of base-board and CPU tile-board (which might have a real
> ASIC or FPGA with CPU image).
> It sports a lot of DesignWare peripherals like GMAC, USB, SPI, I2C
> etc and is intended to be used for early development of ARC-based
>  nSIM
> This is a virtual board implemented in Synopsys proprietary
> software simulator (even though available for free for open source
> community). This board has only serial port as a peripheral and so
> it is meant to be used for runtime testing which is especially
> useful during bring-up of new tools and platforms.
> What's also important ARC cores are very configurable so there're
> many variations of options like cache sizes, their line lengths,
> additional hardware blocks like multipliers, dividers etc. And this
> board could be used to make sure built software still runs on
> different HW configurations.
> Cc: Felix Fietkau <nbd at openwrt.org>
> Cc: Jo-Philipp Wich <jow at openwrt.org>
> Cc: Jonas Gorski <jogo at openwrt.org>
> Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
> Changes compared to v4:
> * Removed DTS variable from profile descriptions in
> * Reworked board type detection in base-files/lib/arc.sh
> Now looking for a full match of "compatible" property.
> Changes compared to v3:
> * Accomodate new KERNEL_INITRAMFS_NAME variable for building .elfs
> * Add and use "model" property in device tree description
> * Remove extra console from kernel command line
> * Use new buildsystem for resulting images
> * Nuked ARC-specific inittab, use default one instead
> * Linux kernel config is passed through "make kernel_oldconfig"
> * eth0 is now LAN instead of WAN
> Changes compared to v2:
> * Fixed copyright dates
> * Cleaned-up init scripts
> Changes compared to v1:
> * Switched to SoC-centered design. Now instead of common ARC700
> support we claim support of boards based on ARC770D.
> This allows to use the same one build of kernel binary for both
> * Implemented run-time scripts that parse Device Tree compatible
> tag and according to it do configuration of serial port and network.
> * Implemented ability to patch in built Linux kernel external .dtb
> * Linux kernel switched from 4.1 to 4.3
> * Rebased on current master
Any comments on this one or there's a chance it could be applied?
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