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2022-08-08docs: Update documentation for kconfig supportAnup Patel1-2/+23
We update all documentation files to: 1) Remove references to platform specific config.mk file since it is has been removed. 2) Add details about platform specific configs/defconfig and Kconfig files mandatory for each platform. 3) Add required packages in top-level README.md 4) Fix typo releated to object.mk in docs/platform/platform.md Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Tested-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Atish Patra <atishp@rivosinc.com> Tested-by: Atish Patra <atishp@rivosinc.com>
2021-10-20Makefile: Add build time and compiler info stringWei Fu1-0/+24
When we are doing opensbi development, we want to know the build time and compiler info for debug purpose. To enable this message, please add "BUILD_INFO=y", like: ``` make BUILD_INFO=y ``` NOTE: Using `BUILD_INFO=y` without specifying SOURCE_DATE_EPOCH will violate "reproducible builds". So it's ONLY for development and debug purpose, and should NOT be used in a product which follows "reproducible builds". Signed-off-by: Wei Fu <wefu@redhat.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2021-07-17README: Update toolchain informationBin Meng1-5/+13
Recent FW_PIC=y changes actually require toolchains with PIE support and it is on by default. Existing doc uses a GNU bare-metal toolchain as examples but it does not support PIE. Replace references of bare-metal toolchain prefix with Linux toolchain prefix everywhere in documentation. Also indicate that "riscv64-unknown-freebsd-" as an alternative to "riscv64-linux-" GNU toolchain. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2021-07-11Makefile: Support building with Clang and LLVM binutilsJessica Clarke1-2/+46
This is intended to mirror the Linux kernel. Building with CC=clang will use Clang as the compiler but default to using the existing binutils. Building with LLVM=1 will default to using Clang and LLVM binutils. Whilst GCC will accept the -N linker option and forward it on to the linker, Clang will not, and so in order to support both compilers we must use -Wl, to forward it to the linker as is required for most other linker options. Note that there is currently a bug when using Clang as the compiler and riscv64-linux-gnu-ld as the linker for FW_PIC=y. At first glance this appears to be a bug in GNU binutils, but this could also be Clang or OpenSBI at fault in some subtle way. Thus, for now, advise that this combination be avoided. Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Tested-by: Anup Patel <anup.patel@wdc.com>
2020-10-21docs: Add initial documentation for domain supportAnup Patel1-0/+3
We add initial documentation for OpenSBI domain support to help RISC-V platform vendors achieve system-level partitioning. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-07-04README.md: fix markdown link formattingTobias Klauser1-4/+4
Consistently use reference-style markdown links in the README. This won't show the URL next to the linked text for the [Github] and [U-Boot] links and link the text "Bootlin toolchain repository" instead of showing it verbatim with the URL next to it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-06-08docs: Use doxygen config to mark the main pageAtish Patra1-1/+1
The doxygen config option "USE_MDFILE_AS_MAINPAGE" can be used to set the main page in doxygen generated pdf. This allows us to remove the "#mainpage" from the README file which markdown doesn't parse. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2020-05-07docs: Fix ordering of pages in table of contentsAnup Patel1-33/+36
Currently, all markdown pages are randomly arranged in table of contents so to fix this we treat top-level README.md as mainpage and enable Doxygen TREEVIEW. Also, there should not be any text before title of a markdown page so we move project copyright as separate section in top-level README.md. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-05-07docs: Add platform requirements documentAnup Patel1-0/+2
We add platform requirements document to clarify OpenSBI expectations from a RISC-V platform. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com>
2020-05-04platform: Remove qemu/virt directoryAnup Patel1-1/+1
The OpenSBI generic platform works perfectly fine on the QEMU virt machine so let's remove dedicated QEMU virt machine platform from OpenSBI. All QEMU virt machine related documentation in OpenSBI will now suggest using OpenSBI generic platform. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2020-04-17docs: Update README about supported SBI versionsAtish Patra1-0/+21
Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-09-05README: Update license informationDamien Le Moal1-8/+4
With the Kendryte K210 platform code cleanup, none of the code copied from Kendryte standalone SDK remains and this platform code is now entirely licensed under OpenSBI BSD-2-clause license. Update the README.md and ThirdPartyNotices.md files to reflect this. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-07-25treewide: Use conventional names for 32-bit and 64-bitBin Meng1-1/+1
There are several places in the source tree that have: 32bit, 32 bit, 64bit, 64 bit Fix by using the conventional names with a hyphen. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-07-25README: Document 32-bit / 64-bit images buildBin Meng1-0/+19
At present the exact details of building 32-bit or 64-bit OpenSBI images are missing in the docs. This adds the missing part. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-05-06docs: miscellaneous documentation fixes and updatesKarsten Merker1-50/+53
- fix some broken hyperlinks - add additional hyperlinks to references to external documents - reformat some paragraphs to keep lines under 80 characters - unify the enumeration style between different parts of the documentation - fix spelling/grammar mistakes - extend the copyright notice in README.md to be the same as the one in COPYING.BSD Signed-off-by: Karsten Merker <merker@debian.org> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-04-15top: Add CONTRIBUTORS.md fileAnup Pate1-2/+5
We add CONTRIBUTORS.md file to provide a list of individuals and organizations actively contributing to the OpenSBI project. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-04-03README: Update license informationDamien Le Moal1-0/+10
Add information regarding the Apache License Version 2.0 of some of the Kendryte/k210 platform files. Also repeat this information in a new ThirdPartyNotices.md file. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-02-19docs: Add a payload section describing different payloads.Atish Patra1-1/+1
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-02-19docs: Update about toolchain section.Atish Patra1-0/+10
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-02-08top: README.md updatesDamien Le Moal1-33/+47
Clarify OpenSBI components explanation. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-30top: Fix typo in README.mdAnup Patel1-3/+3
This patch renames <platform_sub_dir> to <platform_subdir> to be consistent everywhere. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-24docs: README.md updateDamien Le Moal1-67/+131
Reformat to fit lines within 80 chars, fix hyperlinks, etc. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-22docs: Typo fixes.Atish Patra1-4/+4
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-22top: Fix broken links in top-level README.mdBin Meng1-4/+5
There are 2 markdown links that are currently broken in top-level README.md. Fix them so that github could render the URL correctly. This also fixes "No newline at end of file" warning. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-01-18docs: Add licensing seciton for external projects.Atish Patra1-0/+13
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-16top: Update top-level README.md to build/install documentation PDFAnup Patel1-15/+30
This patch updates top-level README.md for steps required to build and install documentation PDF. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-31top: Minor typo fixes in top-level README.mdAnup Patel1-12/+9
This patch does minor typo fixes in top-level README.md. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-26top: Rename back CROSS_COMPILE_PREFIX to CROSS_COMPILEAnup Patel1-1/+1
The name CROSS_COMPILE is an industry standard used across open-source project to specify cross-compiler prefix. In fact, distro build systems such as buildroot and yocto assume CROSS_COMPILE to be supported by projects added as packages to these build systems. This patch rename back CROSS_COMPILE_PREFIX to CROSS_COMPILE. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-25README: UpdateDamien Le Moal1-70/+100
Some rewrite with a more formal style. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-25Makefile: Rename CROSS_COMPILE to CROSS_COMPILE_PREFIXDamien Le Moal1-3/+4
Make it clear what this environment variable defines and update the README.md file to explain that. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-22top: Typo fix in top-level README.mdAnup Patel1-1/+1
The platform specific options will be PLATFORM_<xyz> and not PLAT_<xyz> hence this patch fixes typo in top-level README.md. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21top: Rename "plat" to "platform" everywhereAnup Patel1-8/+8
This patch renames "plat" to "platform" everywhere for better readablility. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21top: Rename "blob" to "firmware" everywhereAnup Patel1-7/+7
This patch renames "blob" to "firmware" everywhere for better and intutive naming. Signed-off-by: Anup Patel <anup@brainfault.org>
2018-12-21top: More detailed top-level README.mdAnup Patel1-21/+65
This patch adds more details to top-level README.md based on current state of OpenSBI. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11Initial commit.Anup Patel1-0/+37
Signed-off-by: Anup Patel <anup.patel@wdc.com>
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