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lib: Disable the boot prints if SBI_SCRATCH_NO_BOOT_PRINTS is set

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Use the newly introduced "options" in "struct sbi_scratch" to
conditionally disable the boot prints.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Bin Meng
2019-03-27 22:58:49 +08:00
committed by Anup Patel
parent 215c200ccb
commit f9cfe301c9
3 changed files with 23 additions and 1 deletions
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15
docs/firmware/fw.md
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@@ -75,3 +75,18 @@ make PLATFORM=<platform_subdir> FW_PAYLOAD_PATH=<payload path>
The instructions to build each payload is different and the details can
be found in the
*docs/firmware/payload_<payload_name>.md* files.
Options for OpenSBI Firmware behaviors
--------------------------------------
An optional compile time flag FW_OPTIONS can be used to control the OpenSBI
firmware run-time behaviors.
```
make PLATFORM=<platform_subdir> FW_OPTIONS=<options>
```
FW_OPTIONS is a bitwise or'ed value of various options, eg: *FW_OPTIONS=0x1*
stands for disabling boot prints from the OpenSBI library.
For all supported options, please check "enum sbi_scratch_options" in the
*include/sbi/sbi_scratch.h* header file.