opensbi.git/docs/platform, branch v1.9

docs: platform: update qemu_virt.md

2026-05-11T04:56:36Z

When using GDB for debugging, if FW_TEXT_START is not set to 0x80000000 during compilation, the following error occurs: Reading symbols from build/platform/generic/firmware/fw_payload.elf... Remote debugging using localhost:1234 mips_warm_boot () at /home/zrmin/opensbi/platform/generic/mips/mips_warm_boot.S:11 11 j _start_warm (gdb) b _start Breakpoint 1 at 0x0: file /home/zrmin/opensbi/firmware/fw_base.S, line 50. (gdb) c Continuing. Remote connection closed (gdb) With FW_TEXT_START=0x80000000, debugging works correctly: Reading symbols from build/platform/generic/firmware/fw_payload.elf... Remote debugging using localhost:1234 0x0000000000001000 in ?? () (gdb) b _start Breakpoint 1 at 0x80000000: file /home/zrmin/opensbi/firmware/fw_base.S, line 50. (gdb) c Continuing. Breakpoint 1, _start () at /home/zrmin/opensbi/firmware/fw_base.S:50 50 MOV_3R s0, a0, s1, a1, s2, a2 (gdb) This is because QEMU loads OpenSBI at address 0x80000000. When FW_TEXT_START does not match this address, the debug symbols are incorrectly offset, causing GDB to fail to set breakpoints properly. Signed-off-by: Zhang RunMin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260319125641.480161-1-runmin.zhang@ingenic.com Signed-off-by: Anup Patel

platform: generic: Tenstorrent Atlantis support

2026-05-09T15:27:50Z

Add the Tenstorrent Atlantis as a generic-platform. This initial support enables the single_fw_region option, and verifies and prints HART PMA CSR configuration. Signed-off-by: Nicholas Piggin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260424062520.238403-1-npiggin@gmail.com Signed-off-by: Anup Patel

platform: Remove kendryte/k210 platform

2026-05-09T07:35:51Z

The kendryte/k210 platform does not have MMU support in S-mode hence only NOMMU kernel which runs in M-mode can be used on this platform. As of now, there is no clear use-case of supporting OpenSBI for kendryte/k210 platform. Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20260409045310.2045739-1-anup.patel@oss.qualcomm.com Signed-off-by: Anup Patel

platform: ariane: Move ariane platform from fpga to generic

2025-11-05T15:52:41Z

The Ariane framework has a generic PMU that is not used by OpenSBI. Due to OpenSBI’s build system we cannot directly reuse the generic platform functions, so move the Ariane platform to generic. Also due to the generic platform is where new features are added. Signed-off-by: Manuel Hernández Méndez Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20251023090347.30746-1-maherme.dev@gmail.com Signed-off-by: Anup Patel

platform: openpiton: Move openpiton platform from fpga to generic

2025-08-26T11:38:00Z

The OpenPiton framework has a generic PMU that is not used by OpenSBI. Due to OpenSBI’s build system we cannot directly reuse the generic platform functions, so move the OpenPiton platform to generic. Also due to the generic platform is where new features are added. Signed-off-by: Manuel Hernández Méndez Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250813104759.33276-1-maherme.dev@gmail.com Signed-off-by: Anup Patel

docs: add example of building the Linux kernel

2024-11-09T09:00:41Z

Slightly expand the QEMU docs to explain how to build the flat Linux kernel image. Signed-off-by: Tim Hutt Reviewed-by: Samuel Holland Reviewed-by: Anup Patel

firmware: remove FW_TEXT_START

2024-04-10T04:20:24Z

Now opensbi can run at any address via dynamic relocation. We can remove FW_TEXT_START. Signed-off-by: Xiang W Reviewed-by: Anup Patel Tested-by: Anup Patel

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: generic.md: fix typo of andes-ae350

2023-01-22T12:01:54Z

Fix hyperlink due to the typo. Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

docs: platform: Add documentation for Renesas RZ/Five SoC

2022-12-12T13:21:10Z

This patch adds documentation to build Renesas RZ/Five (R9A07G043F) SoC. Signed-off-by: Lad Prabhakar Reviewed-by: Anup Patel