u-boot.git/board/synopsys, branch v2018.05

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

ARC: HSDK: Add platform-specific commands

2018-04-02T09:27:56Z

This patch add support of hsdk platform-specific commands: hsdk_clock set - set clock from axi_freq, cpu_freq and tun_freq environment variables/command line arguments hsdk_clock get - save clock frequencies to axi_freq, cpu_freq and tun_freq environment variables hsdk_clock print - show CPU, AXI, DDR and TUNNEL current clock frequencies. hsdk_clock print_all - show all currently used clock frequencies. hsdk_init - setup board HW in one of pre-defined configuration (hsdk_hs34 / hsdk_hs36 / hsdk_hs36_ccm / hsdk_hs38 / hsdk_hs38_ccm / hsdk_hs38x2 / hsdk_hs38x3 / hsdk_hs38x4) hsdk_go - run baremetal application on hsdk configured by hsdk_init command. This patch changes default behaviour of 'bootm' command: now we are able to set number of CPUs to be kicked by setting 'core_mask' environment variable before 'bootm' command run. Signed-off-by: Eugeniy Paltsev Signed-off-by: Alexey Brodkin

ARC: bootm: Refactor GO and PREP subcommands implementation

2018-03-23T12:57:51Z

Refactor GO and PREP subcommands implementation for a simpler override in the boards platform code. Signed-off-by: Eugeniy Paltsev Signed-off-by: Alexey Brodkin

ARC: HSDK: Fixup DW SDIO CIU frequency to 50000000Hz

2017-12-11T08:36:22Z

DW SDIO controller has external CIU clock divider controlled via register in the SDIO IP. Due to its unexpected default value (we expected it to divide by 1 but in reality it divides by 8) SDIO IP uses wrong CIU clock (it should be 100000000Hz but actual is 12500000Hz) and works unstable (see STAR 9001204800). So increase SDIO CIU frequency from actual 12500000Hz to 50000000Hz by switching from the default divisor value (div-by-8) to the minimum possible value of the divisor (div-by-2) in HSDK platform code. Signed-off-by: Eugeniy Paltsev Signed-off-by: Alexey Brodkin

arc: Add support for HS Development Kit board

2017-06-29T16:34:10Z

ARC HS Development Kit board is a new low-cost development platform sporting ARC HS38 in real silicon with nice set of features such as: * Quad-core ARC HS38 with 512 kB L2 cache and running @1GHz * 4Gb of DDR (we use only lowest 1Gb out of it now) * Lots of DesigWare peripherals * Different connectivity modules: - Synopsys HAPS HT3 - Arduino-compatible connector - MikroBUS This initial commit supports the following peripherals: * UART (DW 8250) * Ethernet (DW GMAC) * SD/MMC (DW Mobile Storage) * USB 1.1 & 2.0 Signed-off-by: Alexey Brodkin

axs103: Support slave core kick-start on axs103 v1.1 firmware

2017-03-31T19:09:36Z

In axs103 v1.1 procedure to kick-start slave cores has changed quite a bit compared t previous implementation. In particular: * We used to have a generic START bit for all cores selected by CORE_SEL mask. But now we don't touch CORE_SEL at all because we have a dedicated START bit for each core: bit 0: Core 0 (master) bit 1: Core 1 (slave) * Now there's no need to select "manual" mode of core start Additional challenge for us is how to tell which axs103 firmware we're dealing with. For now we'll rely on ARC core version which was bumped from 2.1c to 3.0. Signed-off-by: Alexey Brodkin

axs103: Clean-up smp_kick_all_cpus()

2017-03-31T19:09:36Z

* Rely on default pulse polarity value * Don't mess with "multicore" value as it doesn't affect execution In essence we now do a bare minimal stuff: 1) Select HS38x2_1 with CORE_SEL=1 bits 2) Select "manual" core start (via CREG) with START_MODE=0 3) Generate cpu_start pulse with START=1 Signed-off-by: Alexey Brodkin

arc: dts: separate single axs10x.dts file

2017-03-24T11:47:52Z

We want to use the same device tree blobs in both Linux and U-Boot for ARC boards. Earlier device tree sources in U-Boot were very simplified and hadn't been updated for quite a long period of time. So this commit is the first step on the road to unified device tree blobs. First of all we re-organize device tree sources for AXS10X boards. As AXS101 and AXS103 boards consist of AXS10X motherboard and AXC001 and AXC003 cpu tiles respectively we add corresponding device tree source files: axs10x_mb.dtsi for motherboard, axc001.dtsi and axc003.dtsi for cpu tiles and axs101.dts and axs103.dts to represent actual boards. Also we delete axs10x.dts as it is no longer used. One more important change - we add timer device to ARC skeleton device tree sources as both ARC700 and ARCHS cores contain such timer. We add core_clk nodes to abilis_tb100, nsim, axc001 and axc003 device tree sources as it is referenced via phandle from timer node in common skeleton.dtsi file. Signed-off-by: Vlad Zakharov Reviewed-by: Simon Glass

arc: Rename AXS101 board to more generic AXS10x

2016-08-05T09:50:33Z

As of now we have 2 flavors of ARC SDP boards: 1) AXS101 - with ARC770 in ASIC 2) AXS103 - with ARC HS38 in FPGA Both options share exactly the same base-board and only differ with CPU-tiles in use. That means all peripherals are the same (they are implemented in FPGA on the base-board) and so generic board could be used for both. While at it: * Recreated defconfigs with savedefconfig * In include/configs/axs10x.h numerical sizes replaced with defines from linux/sizes.h for better readability. Signed-off-by: Alexey Brodkin Reviewed-by: Tom Rini

arc: Rename ARCangel4 board to nSIM

2016-08-05T09:50:25Z

ARCangel was one of the main development boards back in the day but now it's gone and replaced by other boards like ARC SDP. But we also used to have simulation platform very similar to ARCangel4 in terms of CPU settings as well as basic IO like UART. Even though ARCangel4 is long gone now we have a replacement for simulation which is a plain or stand-alone nSIM and Free nSIM. Note Free nSIM is available for download here: https://www.synopsys.com/cgi-bin/dwarcnsim/req1.cgi And while at it: * Finally switch hex numerical values in nsim.h to defines from include/linux/sizes.h * Add defconfigs with ARC HS38 cores * Recreated all defconfigs with savedefconfig Signed-off-by: Alexey Brodkin