opensbi.git/docs, branch v1.4

docs: pmu: Add Andes PMU node example

2023-12-06T12:51:25Z

Add PMU node example for event index to counter index mapping and selector value translation of Andes' CPUs. Currently, there are 4 HPM counters that can be used to monitor all of the events for each hart. Signed-off-by: Yu Chien Peter Lin Reviewed-by: Locus Wei-Han Chen Reviewed-by: Leo Yu-Chi Liang Reviewed-by: Anup Patel Reviewed-by: Lad Prabhakar

utils/reset: Remove fdt_reset_thead

2023-11-16T10:55:23Z

In the past, we used fdt_reset_thead to help customers with prototype verification. However, with the emergence of the Big-little SoC system, it can no longer meet the demand. Therefore, we use zero_stage_boot instead of fdt_reset_thead. It cleans up the opensbi code and ends the disputation of reset_sample's dts. This patch removes the fdt_reset_thead component and updates the related doc. Signed-off-by: Guo Ren Signed-off-by: Guo Ren Reviewed-by: Anup Patel

docs: platform: update platform_requirements.md

2023-10-06T12:28:09Z

"Zicsr" isa extension has been separated from "I" extension. This patch add the isa requirement of "Zicsr" extension in platform requirements documentation. Signed-off-by: Yangjie Zhang Reviewed-by: Anup Patel

doc: Fix fw_payload.md

2023-10-06T04:37:48Z

The base of .text is defined by `FW_TEXT_START`, not `FW_TEXT_BASE`. Signed-off-by: Hoa Nguyen Reviewed-by: Xiang W Reviewed-by: Anup Patel

docs: Add OpenSBI logo and use it in the top-level README.md

2023-06-14T05:56:04Z

We do have an official OpenSBI logo which was designed few months ago and was also approved by RISC-V International. Lets add this logo under docs and also use it in the top-level README.md Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

docs: Correct FW_JUMP_FDT_ADDR calculation example

2023-04-07T05:46:05Z

When using `PLATFORM=generic` defaults, the kernel is loaded at `FW_JUMP_ADDR`, and the FDT is loaded at `FW_JUMP_FDT_ADDR. Therefore, the maximum kernel size before `FW_JUMP_FDT_ADDR` must be increased is `$(( FW_JUMP_FDT_ADDR - FW_JUMP_ADDR ))`. The example calculation assumes `rv64`, and is wrong to boot (off by 0x200000). Fix it and update it for the general case. Signed-off-by: Gabriel Somlo Reviewed-by: Andrew Jones Reviewed-by: Xiang W

platform: generic: Add system suspend test

2023-02-27T14:20:51Z

When the system-suspend-test property is present in the domain config node as shown below, implement system suspend with a simple 5 second delay followed by a WFI. This allows testing system suspend when the low-level firmware doesn't support it. / { chosen { opensbi-domains { compatible = "opensbi,domain,config"; system-suspend-test; }; Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

docs: Correct opensbi-domain property name

2023-02-27T14:19:07Z

Replace the commas with dashes to correct the name. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi: Add system_suspend_allowed domain property

2023-02-27T14:15:28Z

Only privileged domains should be allowed to suspend the entire system. Give the root domain this property by default and allow other domains to be given the property by specifying it in the DT. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

docs: domain_support: Update the DT example

2023-02-27T08:20:27Z

commit 3e2f573e707e ("lib: utils: Disallow non-root domains from adding M-mode regions") added access permission check in __fdt_parse_region(). With the existing DT example in the doc OpenSBI won't boot anymore. Let's update the DT example so that it can work out of the box. Signed-off-by: Bin Meng Reviewed-by: Anup Patel