RTEMS | bsps/riscv: Update NOEL BSPs (!1471)

Matteo Concas (@matteo.concas) gitlab at rtems.org
Fri Sep 4 14:19:22 UTC 2026



Matteo Concas created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1471

Project:Branches: matteo.concas/rtems-gaisler:matteo/new-noel-bsp to rtems/rtos/rtems:main
Author:   Matteo Concas



## Summary

Update the NOEL BSPs

The initial NOEL BSPs used DTBs and as such could not support the driver manager or the GRLIB drivers.
This new BSP uses PnP scanning to discover devices present in the system. It can use the driver manager and all GRLIB drivers.

The new BSPs are the following:

* Four generic BSPs corresponding to the standard NOEL-V configurations which can be found in the [GRLIB IP Core User Manual](https://download.gaisler.com/products/GRLIB/doc/grip.pdf#G114.1184991), section 116.1.1: noelgp32 & noelgp64 (CFG=0x30x), noelmcl32 & noelmcl64 (CFG=0x28x)
* A GR765 BSP that corresponds to the Gaisler GR765 SoC (Octa-core 64bit RISC-V). For more information on the GR765, see https://www.gaisler.com/products/gr765
* A GR801 BSP that corresponds to the Gaisler GR801 SoC (Unicore 64bit RISC-V with a neuromorphic processing engine). For more information on the GR801, see https://www.gaisler.com/products/gr801

## Test results

The RTEMS testsuite was run on [TSIM GR765](https://www.gaisler.com/products/tsim3-gr765) with the UC and SMP configurations:
```ini
[DEFAULT]
RTEMS_POSIX_API = True
RTEMS_DRVMGR_STARTUP = True

```

Most of the test failures are explained by a higher TLS size than expected. I believe the TLS comes from the driver manager

<details>
<summary>GR765 UC Test Results</summary>

```
Passed:        644
Failed:         12
User Input:      4
Expected Fail:  25
Indeterminate:   0
Benchmark:       3
Timeout:         5
Test too long:   1
Invalid:         1
Wrong Version:   0
Wrong Build:     0
Wrong Tools:     0
Wrong Header:    0
------------------
Total:         695

Failures:
 psx09.exe -> Asking for CPU 1 in UC configuration
 sp01.exe -> TLS due to driver manager
 sptls01.exe -> TLS due to driver manager
 sptls03.exe -> TLS due to driver manager
 ts-fatal-idle-thread-create-failed.exe -> INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALL
 ts-fatal-init-task-construct-failed.exe ->INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALL
 ts-performance-no-clock-0.exe -> RTEMS_INVALID_SIZE
 ts-fatal-extension.exe -> False positive
 ts-validation-1.exe -> INTERNAL_ERROR_TOO_LARGE_TLS_SIZE
 ts-validation-acfg-0.exe -> INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALL
 ts-validation-acfg-1.exe -> INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALL
 ts-validation-one-cpu-1.exe -> INTERNAL_ERROR_TOO_LARGE_TLS_SIZE
User Input:
 dl10.exe
 monitor.exe
 termios.exe
 top.exe
Expected Fail:
 dl06.exe
 fatfs_fsrenameexisting.exe
 fatfs_fsrenamemaxlinks.exe
 imfs_fsrenameexisting.exe
 imfs_fsrenamepermexisting.exe
 imfs_fssymlink.exe
 jffs2_fsrenameexisting.exe
 jffs2_fsrenamemaxlinks.exe
 jffs2_fsrenamepermexisting.exe
 jffs2_fssymlink.exe
 jffs2nand_fsrenameexisting.exe
 jffs2nand_fsrenamemaxlinks.exe
 jffs2nand_fsrenamepermexisting.exe
 jffs2nand_fssymlink.exe
 mdosfs_fsrenameexisting.exe
 mdosfs_fsrenamemaxlinks.exe
 mimfs_fsrenameexisting.exe
 mimfs_fsrenamemaxlinks.exe
 mimfs_fsrenamepermexisting.exe
 mimfs_fssymlink.exe
 mrfs_fsrenameexisting.exe
 mrfs_fsrenamelongname.exe
 mrfs_fsrenamemaxlinks.exe
 mrfs_fsrenamepermexisting.exe
 mrfs_fssymlink.exe
Benchmark:
 dhrystone.exe
 linpack.exe
 whetstone.exe
Timeouts:
 crypt01.exe
 fsdosfsformat01.exe
 sp54.exe
 spconsole01.exe
 tmtimer01.exe
Test too long:
 spcontext01.exe
Invalid:
 spstkalloc02.exe

Average test time: 0:00:02.092791

Testing time     : 0:24:14.489730
```
</details>


<details>
<summary>GR765 SMP Test Results</summary>

```
Passed:        707
Failed:         13
User Input:      4
Expected Fail:  25
Indeterminate:   0
Benchmark:       3
Timeout:        12
Test too long:   1
Invalid:         1
Wrong Version:   0
Wrong Build:     0
Wrong Tools:     0
Wrong Header:    0
------------------
Total:         766

Failures:
 sp01.exe
 sptls01.exe
 sptls03.exe
 ts-fatal-idle-thread-create-failed.exe
 ts-fatal-init-task-construct-failed.exe
 ts-fatal-start-on-not-online-processor.exe
 ts-performance-no-clock-0.exe
 ts-fatal-extension.exe
 ts-validation-1.exe
 ts-validation-acfg-0.exe
 ts-validation-acfg-1.exe
 ts-validation-one-cpu-1.exe
 ts-validation-smp-only-2.exe
User Input:
 dl10.exe
 monitor.exe
 termios.exe
 top.exe
Expected Fail:
 dl06.exe
 fatfs_fsrenameexisting.exe
 fatfs_fsrenamemaxlinks.exe
 imfs_fsrenameexisting.exe
 imfs_fsrenamepermexisting.exe
 imfs_fssymlink.exe
 jffs2_fsrenameexisting.exe
 jffs2_fsrenamemaxlinks.exe
 jffs2_fsrenamepermexisting.exe
 jffs2_fssymlink.exe
 jffs2nand_fsrenameexisting.exe
 jffs2nand_fsrenamemaxlinks.exe
 jffs2nand_fsrenamepermexisting.exe
 jffs2nand_fssymlink.exe
 mdosfs_fsrenameexisting.exe
 mdosfs_fsrenamemaxlinks.exe
 mimfs_fsrenameexisting.exe
 mimfs_fsrenamemaxlinks.exe
 mimfs_fsrenamepermexisting.exe
 mimfs_fssymlink.exe
 mrfs_fsrenameexisting.exe
 mrfs_fsrenamelongname.exe
 mrfs_fsrenamemaxlinks.exe
 mrfs_fsrenamepermexisting.exe
 mrfs_fssymlink.exe
Benchmark:
 dhrystone.exe
 linpack.exe
 whetstone.exe
Timeouts:
 crypt01.exe
 fsdosfsformat01.exe
 smpload01.exe
 smpmigration01.exe
 smpmigration02.exe
 smpmrsp01.exe
 smpswitchextension01.exe
 sp54.exe
 spconsole01.exe
 tmtimer01.exe
 ts-fatal-smp.exe
 ts-validation-no-clock-0.exe
Test too long:
 smplock01.exe
Invalid:
 spstkalloc02.exe
```
</details>

## Generative AI

Claude Sonnet 5.1 was used to review my changes, prompt:
> Review the seven commits on the `matteo/new-noel-bsp` branch


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