35 Commits

Author SHA1 Message Date
Anup Patel
0723bab8fe docs: Update documentation for kconfig support
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>
2022-08-08 09:34:31 +05:30
Wei Fu
422eda499c Makefile: Add build time and compiler info string
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>
2021-10-20 15:10:52 +05:30
Bin Meng
81eb7088b6 README: Update toolchain information
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>
2021-07-17 18:32:20 +05:30
Jessica Clarke
2942777425 Makefile: Support building with Clang and LLVM binutils
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>
2021-07-11 20:22:55 +05:30
Anup Patel
fdf5d5c322 docs: Add initial documentation for domain support
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>
2020-10-21 12:29:36 +05:30
Tobias Klauser
7d61a68775 README.md: fix markdown link formatting
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>
2020-07-04 09:58:03 +05:30
Atish Patra
79bfd67f9a docs: Use doxygen config to mark the main page
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>
2020-06-08 17:02:41 +05:30
Anup Patel
c2286b6f04 docs: Fix ordering of pages in table of contents
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>
2020-05-07 09:46:22 +05:30
Anup Patel
dfd9dd67dc docs: Add platform requirements document
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>
2020-05-07 09:45:52 +05:30
Anup Patel
13717a8e53 platform: Remove qemu/virt directory
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>
2020-05-04 10:09:23 +05:30
Atish Patra
615587c336 docs: Update README about supported SBI versions
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>
2020-04-17 09:32:06 +05:30
Damien Le Moal
144acef684 README: Update license information
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>
2019-09-05 18:52:32 +05:30
Bin Meng
85546a5477 treewide: Use conventional names for 32-bit and 64-bit
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>
2019-07-25 09:14:58 +05:30
Bin Meng
c90009aa20 README: Document 32-bit / 64-bit images build
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>
2019-07-25 09:11:49 +05:30
Karsten Merker
0d33a981ec docs: miscellaneous documentation fixes and updates
- 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>
2019-05-06 11:05:33 +05:30
Anup Pate
b2cd5fda61 top: Add CONTRIBUTORS.md file
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>
2019-04-15 09:54:10 +05:30
Damien Le Moal
bce71a00bd README: Update license information
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>
2019-04-03 10:22:57 +09:00
Atish Patra
0db43770b3 docs: Add a payload section describing different payloads.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-02-19 18:22:26 +05:30
Atish Patra
34bf6d4a0f docs: Update about toolchain section.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-02-19 18:22:26 +05:30
Damien Le Moal
7b3da0ef0d top: README.md updates
Clarify OpenSBI components explanation.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-02-08 09:36:06 +05:30
Anup Patel
130230ff59 top: Fix typo in README.md
This patch renames <platform_sub_dir> to <platform_subdir> to be
consistent everywhere.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-30 12:14:30 +05:30
Damien Le Moal
fba7e7c3ea docs: README.md update
Reformat to fit lines within 80 chars, fix hyperlinks, etc.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-24 18:45:01 +05:30
Atish Patra
f293d21863 docs: Typo fixes.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-22 14:00:44 +05:30
Bin Meng
689c31f418 top: Fix broken links in top-level README.md
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>
2019-01-22 12:17:18 +05:30
Atish Patra
384ba7f7f1 docs: Add licensing seciton for external projects.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18 10:05:12 +05:30
Anup Patel
64c68c03f3 top: Update top-level README.md to build/install documentation PDF
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>
2019-01-16 11:25:25 +05:30
Anup Patel
5688b4d8fc top: Minor typo fixes in top-level README.md
This patch does minor typo fixes in top-level README.md.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-31 09:33:04 +05:30
Anup Patel
fd7199920e top: Rename back CROSS_COMPILE_PREFIX to CROSS_COMPILE
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>
2018-12-26 10:57:15 +05:30
Damien Le Moal
23e2c594cc README: Update
Some rewrite with a more formal style.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-25 16:01:27 +09:00
Damien Le Moal
d06dca9bcc Makefile: Rename CROSS_COMPILE to CROSS_COMPILE_PREFIX
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>
2018-12-25 15:37:48 +09:00
Anup Patel
4e8d078613 top: Typo fix in top-level README.md
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>
2018-12-22 21:14:23 +05:30
Anup Patel
089f70a179 top: Rename "plat" to "platform" everywhere
This patch renames "plat" to "platform" everywhere for better
readablility.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21 10:35:04 +05:30
Anup Patel
b023176c17 top: Rename "blob" to "firmware" everywhere
This patch renames "blob" to "firmware" everywhere for better
and intutive naming.

Signed-off-by: Anup Patel <anup@brainfault.org>
2018-12-21 09:52:27 +05:30
Anup Patel
ef1f669cb7 top: More detailed top-level README.md
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>
2018-12-21 07:28:33 +05:30
Anup Patel
9e8ff05cb6 Initial commit.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 19:24:06 +05:30