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drivers/serial: Refactor PL011 to be general-purpose#18837

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linguini1:pl011-uart
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drivers/serial: Refactor PL011 to be general-purpose#18837
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linguini1:pl011-uart

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@linguini1 linguini1 commented May 2, 2026 •
edited by cederom
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Summary

This commit refactors the PL011 UART driver so that it can be re-used for any number of UART interfaces depending on the board/chip. This commit also hooks the UART interface configuration/selection for PL011 UART interfaces into the same Kconfig used for regular UART interfaces. Now UART interfaces are configured in a standard, extensible way.

Related to #18836. Needed to unblock progress on the RPi4B PL011 UART interfaces for GSoC 2026.

Impact

Impacts only the 4 (simulator) boards that used PL011 UART.

Testing

For each of the QEMU boards, I tested their gdbstub demos since those configurations use both UART interfaces, not just a console.

QEMU ARMv8A

Details 
$ qemu-system-aarch64 -cpu cortex-a53 -nographic -machine virt,virtualization=on,gic-version=3 -net none -kernel ./nuttx -serial mon:stdio -serial pty
char device redirected to /dev/pts/1 (label serial1)
- Ready to Boot Primary CPU
- Boot from EL2
- Boot from EL1
- Boot to C runtime for OS Initialize

NuttShell (NSH) NuttX-12.13.0
nsh> ps
  TID   PID  PPID PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK            STACK    USED FILLED COMMAND
    0     0     0   0 FIFO     Kthread   - Ready              0000000000000000 0008144 0001664  20.4%  Idle_Task
    1     0     0 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 0008080 0001152  14.2%  hpwork 0x403cf6d0 0x403cf758
    3     3     0 100 RR       Task      - Running            0000000000000000 0008112 0003840  47.3%  nsh_main
nsh> ls
/:
 dev/
 proc/
 tmp/

$ gdb nuttx -ex "target remote /dev/pts/1"
GNU gdb (GDB) 17.1
Copyright (C) 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from nuttx...
Remote debugging using /dev/pts/1
0x0000000040297528 in up_idle () at common/arm64_idle.c:65
65      }
(gdb) exit

QEMU ARMv7A

Details 
$ qemu-system-arm -cpu cortex-a7 -nographic -machine virt,virtualization=off,gic-version=2 -net none -kernel ./nuttx  -serial mon:stdio -serial pty
char device redirected to /dev/pts/2 (label serial1)
nx_start: Entry
uart_register: Registering /dev/console
uart_register: Registering /dev/ttyS0
work_start_highpri: Starting high-priority kernel worker thread(s)
nxtask_activate: hpwork pid=1,TCB=0x4020d5c0
nxtask_activate: AppBringUp pid=2,TCB=0x4020e690
nx_start_application: Starting init thread
task_spawn: name=nsh_main entry=0x60ccac file_actions=0 attr=0x4020f724 argv=0x4020f720
nxtask_activate: nsh_main pid=3,TCB=0x4020f790
nxtask_exit: AppBringUp pid=2,TCB=0x4020e690
lib_cxx_initialize: _sinit: 0x631110 _einit: 0x631110

NuttShell (NSH) NuttX-12.13.0
nsh> nx_start: CPU0: Beginning Idle Loop

nsh> ps
  TID   PID  PPID PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK            STACK    USED FILLED COMMAND
    0     0     0   0 FIFO     Kthread   - Ready              0000000000000000 0004072 0000704  17.2%  Idle_Task
    1     0     0 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 0004024 0000456  11.3%  hpwork 0x40200150 0x40200198
    3     3     0 100 RR       Task      - Running            0000000000000000 0004048 0001552  38.3%  nsh_main
nsh>
$ gdb nuttx -ex "target remote /dev/pts/2"
GNU gdb (GDB) 17.1
Copyright (C) 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from nuttx...
Remote debugging using /dev/pts/2
0x0060c488 in up_idle () at chip/qemu_idle.c:63
63      }
(gdb) exit

For the FVP boards, I tested compilation only.

The CXD32 and and Goldfish chips don't have any defconfigs to test.

@github-actions github-actions Bot added Arch: arm Issues related to ARM (32-bit) architecture Arch: arm64 Issues related to ARM64 (64-bit) architecture Area: Drivers Drivers issues Size: XL The size of the change in this PR is very large. Consider breaking down the PR into smaller pieces. Board: arm Board: arm64 labels May 2, 2026
@linguini1 linguini1 requested review from cederom and michallenc May 2, 2026 19:53
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linguini1 commented May 2, 2026 •
edited
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I am able to run the qemu-armv8a:citest binary locally with the same invocation used by NTFC:

$ qemu-system-aarch64 -cpu cortex-a53 -nographic -machine virt,virtualization=on,gic-version=3 -net none -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -kernel ./nuttx

NuttShell (NSH) NuttX-12.13.0
nsh> ps
  TID   PID  PPID PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK            STACK    USED FILLED COMMAND
    0     0     0   0 FIFO     Kthread   - Ready              0000000000000000 0008144 0001616  19.8%  Idle_Task
    1     0     0 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 0008080 0001200  14.8%  hpwork 0x404196a0 0x40419728
    3     3     0 100 RR       Task      - Running            0000000000000000 0008112 0003728  45.9%  nsh_main
nsh> ls
/:
 dev/
 proc/
 tmp/
nsh>

It's also odd that it works for SMP.

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linguini1 commented May 3, 2026

@raiden00pl Do you have any idea why this change might cause NTFC to fail with a boot timeout on qemu-armv8a:citest but not qemu-armv8a:citest_smp?

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raiden00pl commented May 3, 2026

no idea. NTFC should export nuttx.elf in CI artifacts, but for some reason these are not present for qemu-armv8a:citest and qemu-armv8a:citest_smp. What's funny - it works for all other targets citest targets.

Now I see that this target uses cmake, so that might be the reason for the missing elf in the artifacts.

@xiaoxiang781216 xiaoxiang781216 linked an issue May 3, 2026 that may be closed by this pull request
[FEATURE] Re-usable PL011 UART driver #18836
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xiaoxiang781216 requested changes May 3, 2026
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Comment thread drivers/serial/uart_pl011.c
*
***************************************************************************/

void pl011_serialinit(void)
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why drop the default implementation which could avoid the code duplication in the common case. it's better that:

  1. keep pl011_serialinit/pl011_earlyserialinit if one of CONFIG_UARTx_PL011 is enabled
  2. add pl011_dev_init, so the special case could call the new function directly.

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Because this function is no longer useful. It needs access to the device structs for the PL011 interfaces in order to register them, but these are defined outside this module now.

If we keep this function, then we can no longer:

  • Define an arbitrary number of interfaces
  • Use the standard UART config options for configuring PL011 UART

It should now be up to the chip logic to register the UART interfaces instead, as with all other UART drivers. Otherwise we don't have the benefits and we must also maintain two separate ways of doing things. There are only 3 boards that use PL011 right now, so it's not a super common case.

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but the similar config duplicated in the many places now. I would prefer to keep the origin global definition, so the common usage could be simplified.

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I'm not sure there's a way around that except by maintaining two interfaces for PL011 registration and all the old Kconfig options. Plus, I will have to add some refactoring for more granular interrupt management.

Let me brainstorm and get back to you, maybe I can keep the init function and still remove the PL011-specific Kconfig functions. The main challenge is selection of the base addresses and IRQ numbers.

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linguini1 commented May 3, 2026

Now I see that this target uses cmake, so that might be the reason for the missing elf in the artifacts.

I'll try building with CMake in case that reveals what the issue might be.

@linguini1
drivers/serial: Refactor PL011 to be general-purpose
0fd76d2 
This commit refactors the PL011 UART driver so that it can be re-used
for any number of UART interfaces depending on the board/chip. This
commit also hooks the UART interface configuration/selection for PL011
UART interfaces into the same Kconfig used for regular UART interfaces.
Now UART interfaces are configured in a standard, extensible way.

Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
@linguini1
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linguini1 commented May 25, 2026 •
edited
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Okay so I built qemu-armv8a:citest locally using CMake:

$ cmake -B build -DBOARD_CONFIG=qemu-armv8a:citest -GNinja
$ cmake --build build

Then I downloaded the nuttx-ntfc and nuttx-ntfc-testing repositories to run the CI test-suites locally:

$ ntfc test --testpath=/home/linguini/coding/nuttx-space/nuttx-ntfc/external/nuttx-testing/ --confpath=/home/linguini/coding/nuttx-space/nuttx/boards/arm64/qemu/qemu-armv8a/configs/citest/config.yaml --jsonconf=/home/linguini/coding/nuttx-space/nuttx/boards/arm64/qemu/qemu-armv8a/configs/citest/session.json
--------------------------------------------------------------------------------
NTFC PID: 3606981
--------------------------------------------------------------------------------
YAML config:
{'config': {'cwd': './', 'kv': [], 'loops': 1},
 'product': {'cores': {'core0': {'conf_path': './build/.config',
                                 'device': 'qemu',
                                 'elf_path': './build/nuttx',
                                 'exec_args': '-cpu cortex-a53 -nographic '
                                              '-machine '
                                              'virt,virtualization=on,gic-version=3 '
                                              '-net none -chardev '
                                              'stdio,id=con,mux=on -serial '
                                              'chardev:con -mon '
                                              'chardev=con,mode=readline',
                                 'exec_path': 'qemu-system-aarch64',
                                 'name': 'main'}},
             'name': 'qemu-armv8a'}}
JSON config:
{'args': {'kv': []},
 'module': {'exclude_module': ['Nuttx_System_Fs_Fs'],
            'include_module': [],
            'order': []}}
CPU information header not found in output
==================================================================== test session starts =====================================================================
platform linux -- Python 3.14.5, pytest-9.0.3, pluggy-1.6.0
rootdir: /home/linguini/coding/nuttx-space/nuttx-ntfc
configfile: tox.ini
plugins: html-4.2.0, repeat-0.9.4, ordering-0.6, dependency-0.6.1, metadata-3.1.1, timeout-2.4.0
collected 932 items                                                                                                                                          

=================================================================== no tests ran in 0.38s ====================================================================

====================================================================================================
  🚀 RUNNING 63 SELECTED TEST(S)
====================================================================================================
┼─────┼──────────────────────────────────┼──────────────────────────────┼
│ Idx │ Module                           │ Test Case                    │
┼─────┼──────────────────────────────────┼──────────────────────────────┼
│   1 │ Nuttx_System_Arch_Os_Integration │ test_os[main]                │
│   2 │ Nuttx_System_Arch_Example        │ test_hello_integration[main] │
│   3 │ Nuttx_System_Arch_Example        │ test_getprime                │
│   4 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat001[main]    │
│   5 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat002[main]    │
│   6 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat003[main]    │
│   7 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat004[main]    │
│   8 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat005[main]    │
│   9 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat006[main]    │
│  10 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat007[main]    │
│  11 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat008[main]    │
│  12 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat009[main]    │
│  13 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat010[main]    │
│  14 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd001            │
│  15 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd002            │
│  16 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd003            │
│  17 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd004            │
│  18 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd005            │
│  19 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo001        │
│  20 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo002        │
│  21 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo003        │
│  22 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help01         │
│  23 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help02         │
│  24 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help_v         │
│  25 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help_cat       │
│  26 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_l             │
│  27 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_s             │
│  28 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_R             │
│  29 │ Nuttx_System_Arch_Nsh            │ TestRm.test_rm001            │
│  30 │ Nuttx_System_Arch_Nsh            │ TestRm.test_rm002            │
│  31 │ Nuttx_System_Arch_Nsh            │ TestMkdir.test_mkdir001      │
│  32 │ Nuttx_System_Arch_Nsh            │ TestRmdir.test_rmdir001      │
│  33 │ Nuttx_System_Arch_Nsh            │ TestRmdir.test_rmdir002      │
│  34 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp001            │
│  35 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp002            │
│  36 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp003            │
│  37 │ Nuttx_System_Arch_Nsh            │ TestPs.test_ps               │
│  38 │ Nuttx_System_Arch_Nsh            │ TestTime.test_sleep          │
│  39 │ Nuttx_System_Arch_Nsh            │ TestTime.test_usleep         │
│  40 │ Nuttx_System_Arch_Nsh            │ TestSet.test_set             │
│  41 │ Nuttx_System_Arch_Nsh            │ TestSet.test_unset           │
│  42 │ Nuttx_System_Arch_Nsh            │ TestTest.test_test           │
│  43 │ Nuttx_System_Arch_Nsh            │ TestDirname.test_dirname     │
│  44 │ Nuttx_System_Arch_Nsh            │ TestBasename.test_basename   │
│  45 │ Nuttx_System_Arch_Nsh            │ TestDf.test_df               │
│  46 │ Nuttx_System_Arch_Nsh            │ TestDf.test_df_h             │
│  47 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname         │
│  48 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_a       │
│  49 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_s       │
│  50 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_r       │
│  51 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_v       │
│  52 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_m       │
│  53 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_i       │
│  54 │ Nuttx_System_Arch_Nsh            │ TestEnv.test_env             │
│  55 │ Nuttx_System_Arch_Nsh            │ TestMv.test_mv               │
│  56 │ Nuttx_System_Arch_Nsh            │ TestPwd.test_pwd             │
│  57 │ Nuttx_System_Arch_Nsh            │ TestHexdump.test_hexdump     │
│  58 │ Nuttx_System_Arch_Nsh            │ TestMkrd.test_mkrd           │
│  59 │ Nuttx_System_Arch_Nsh            │ TestMw.test_mw               │
│  60 │ Nuttx_System_Arch_Nsh            │ TestExec.test_exec           │
│  61 │ Nuttx_System_Arch_Space          │ test_free[main]              │
│  62 │ Nuttx_System_Arch_Space          │ test_df[main]                │
│  63 │ Nuttx_System_Tools               │ test_system_mmleak           │
┼─────┼──────────────────────────────────┼──────────────────────────────┼
====================================================================================================

CPU information header not found in output
==================================================================== test session starts =====================================================================
platform linux -- Python 3.14.5, pytest-9.0.3, pluggy-1.6.0
rootdir: /home/linguini/coding/nuttx-space/nuttx-ntfc
configfile: tox.ini
plugins: html-4.2.0, repeat-0.9.4, ordering-0.6, dependency-0.6.1, metadata-3.1.1, timeout-2.4.0
timeout: 800.0s
timeout method: signal
timeout func_only: False
session timeout: 3600.0s
collected 64 items                                                                                                                                           

../nuttx-ntfc/external/nuttx-testing/arch/os/integration/test_arch_os_integration.py::test_os[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/example/test_arch_example_integration.py::test_hello_integration[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/example/test_arch_example_integration.py::test_getprime PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat001[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat002[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat003[main]

It works fine. I even made sure to use release-0.0.1. However, running the CI through the manual CI testing repository, I can see it fail again for this specific configuration: https://github.com/linguini1/manual-nuttx-ci/actions/runs/26415001939/job/77757543595

I'm genuinely at a loss for what's going on. Can you spot anything @raiden00pl?

@linguini1 linguini1 requested a review from raiden00pl May 25, 2026 19:49
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raiden00pl commented May 25, 2026

Did you run this on your host or from nuttx-ci docker? I also checked it on my host, and this change pass ntfc tests. So I think there might be something wrong with image produced by docker itself, or maybe qemu version that is installed on this image

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linguini1 commented May 25, 2026

Did you run this on your host or from nuttx-ci docker? I also checked it on my host, and this change pass ntfc tests. So I think there might be something wrong with image produced by docker itself, or maybe qemu version that is installed on this image

This was run on my host, not from the nuttx-ci docker. Darn, what a pesky bug to track down!

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linguini1 commented May 25, 2026

Okay it looks the CI uses QEMU version 6.2.0, while I have 11.0.0 (for aarch64). Not sure if this is necessarily the culprit but I'll investigate.

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linguini1 commented May 25, 2026 •
edited
Loading

Even more hair pulling. I downloaded the latest CI docker image and ran it

$ docker pull ghcr.io/apache/nuttx/apache-nuttx-ci-linux:latest

Then I cloned my branch with these changes, nuttx-apps, nuttx-ntfc, nuttx-ntfc-testing, installed NTFC, built qemu-armv8a:citest with CMake, etc. inside the Docker container. And...... it works fine:

$ ntfc test --testpath=../nuttx-ntfc/external/nuttx-testing/ --confpath=boards/arm64/qemu/qemu-armv8a/configs/citest/config.yaml --jsonconf=boards/arm64/qemu/qemu-armv8a/configs/citest/session.json
--------------------------------------------------------------------------------
NTFC PID: 11313
--------------------------------------------------------------------------------
YAML config:
{'config': {'cwd': './', 'kv': [], 'loops': 1},
 'product': {'cores': {'core0': {'conf_path': './build/.config',
                                 'device': 'qemu',
                                 'elf_path': './build/nuttx',
                                 'exec_args': '-cpu cortex-a53 -nographic '
                                              '-machine '
                                              'virt,virtualization=on,gic-version=3 '
                                              '-net none -chardev '
                                              'stdio,id=con,mux=on -serial '
                                              'chardev:con -mon '
                                              'chardev=con,mode=readline',
                                 'exec_path': 'qemu-system-aarch64',
                                 'name': 'main'}},
             'name': 'qemu-armv8a'}}
JSON config:
{'args': {'kv': []},
 'module': {'exclude_module': ['Nuttx_System_Fs_Fs'],
            'include_module': [],
            'order': []}}
CPU information header not found in output
================================================================== test session starts ===================================================================
platform linux -- Python 3.10.12, pytest-9.0.3, pluggy-1.6.0
rootdir: /tools/nuttx-space/nuttx-ntfc
configfile: tox.ini
plugins: html-4.2.0, dependency-0.6.1, metadata-3.1.1, timeout-2.4.0, repeat-0.9.1, ordering-0.6, json-0.4.0
collected 932 items                                                                                                                                      

================================================================= no tests ran in 0.41s ==================================================================

====================================================================================================
  🚀 RUNNING 63 SELECTED TEST(S)
====================================================================================================
┼─────┼──────────────────────────────────┼──────────────────────────────┼
│ Idx │ Module                           │ Test Case                    │
┼─────┼──────────────────────────────────┼──────────────────────────────┼
│   1 │ Nuttx_System_Arch_Os_Integration │ test_os[main]                │
│   2 │ Nuttx_System_Arch_Example        │ test_hello_integration[main] │
│   3 │ Nuttx_System_Arch_Example        │ test_getprime                │
│   4 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat001[main]    │
│   5 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat002[main]    │
│   6 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat003[main]    │
│   7 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat004[main]    │
│   8 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat005[main]    │
│   9 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat006[main]    │
│  10 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat007[main]    │
│  11 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat008[main]    │
│  12 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat009[main]    │
│  13 │ Nuttx_System_Arch_Nsh            │ TestCat.test_cat010[main]    │
│  14 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd001            │
│  15 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd002            │
│  16 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd003            │
│  17 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd004            │
│  18 │ Nuttx_System_Arch_Nsh            │ TestCd.test_cd005            │
│  19 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo001        │
│  20 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo002        │
│  21 │ Nuttx_System_Arch_Nsh            │ TestEcho.test_echo003        │
│  22 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help01         │
│  23 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help02         │
│  24 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help_v         │
│  25 │ Nuttx_System_Arch_Nsh            │ TestHelp.test_help_cat       │
│  26 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_l             │
│  27 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_s             │
│  28 │ Nuttx_System_Arch_Nsh            │ TestLs.test_ls_R             │
│  29 │ Nuttx_System_Arch_Nsh            │ TestRm.test_rm001            │
│  30 │ Nuttx_System_Arch_Nsh            │ TestRm.test_rm002            │
│  31 │ Nuttx_System_Arch_Nsh            │ TestMkdir.test_mkdir001      │
│  32 │ Nuttx_System_Arch_Nsh            │ TestRmdir.test_rmdir001      │
│  33 │ Nuttx_System_Arch_Nsh            │ TestRmdir.test_rmdir002      │
│  34 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp001            │
│  35 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp002            │
│  36 │ Nuttx_System_Arch_Nsh            │ TestCp.test_cp003            │
│  37 │ Nuttx_System_Arch_Nsh            │ TestPs.test_ps               │
│  38 │ Nuttx_System_Arch_Nsh            │ TestTime.test_sleep          │
│  39 │ Nuttx_System_Arch_Nsh            │ TestTime.test_usleep         │
│  40 │ Nuttx_System_Arch_Nsh            │ TestSet.test_set             │
│  41 │ Nuttx_System_Arch_Nsh            │ TestSet.test_unset           │
│  42 │ Nuttx_System_Arch_Nsh            │ TestTest.test_test           │
│  43 │ Nuttx_System_Arch_Nsh            │ TestDirname.test_dirname     │
│  44 │ Nuttx_System_Arch_Nsh            │ TestBasename.test_basename   │
│  45 │ Nuttx_System_Arch_Nsh            │ TestDf.test_df               │
│  46 │ Nuttx_System_Arch_Nsh            │ TestDf.test_df_h             │
│  47 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname         │
│  48 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_a       │
│  49 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_s       │
│  50 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_r       │
│  51 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_v       │
│  52 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_m       │
│  53 │ Nuttx_System_Arch_Nsh            │ TestUname.test_uname_i       │
│  54 │ Nuttx_System_Arch_Nsh            │ TestEnv.test_env             │
│  55 │ Nuttx_System_Arch_Nsh            │ TestMv.test_mv               │
│  56 │ Nuttx_System_Arch_Nsh            │ TestPwd.test_pwd             │
│  57 │ Nuttx_System_Arch_Nsh            │ TestHexdump.test_hexdump     │
│  58 │ Nuttx_System_Arch_Nsh            │ TestMkrd.test_mkrd           │
│  59 │ Nuttx_System_Arch_Nsh            │ TestMw.test_mw               │
│  60 │ Nuttx_System_Arch_Nsh            │ TestExec.test_exec           │
│  61 │ Nuttx_System_Arch_Space          │ test_free[main]              │
│  62 │ Nuttx_System_Arch_Space          │ test_df[main]                │
│  63 │ Nuttx_System_Tools               │ test_system_mmleak           │
┼─────┼──────────────────────────────────┼──────────────────────────────┼
====================================================================================================

CPU information header not found in output
================================================================== test session starts ===================================================================
platform linux -- Python 3.10.12, pytest-9.0.3, pluggy-1.6.0
rootdir: /tools/nuttx-space/nuttx-ntfc
configfile: tox.ini
plugins: html-4.2.0, dependency-0.6.1, metadata-3.1.1, timeout-2.4.0, repeat-0.9.1, ordering-0.6, json-0.4.0
timeout: 800.0s
timeout method: signal
timeout func_only: False
session timeout: 3600.0s
collected 64 items                                                                                                                                       

../nuttx-ntfc/external/nuttx-testing/arch/os/integration/test_arch_os_integration.py::test_os[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/example/test_arch_example_integration.py::test_hello_integration[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/example/test_arch_example_integration.py::test_getprime PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat001[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat002[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat003[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat004[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat005[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat006[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat007[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat008[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat009[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCat::test_cat010[main] PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCd::test_cd001 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCd::test_cd002 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCd::test_cd003 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCd::test_cd004 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestCd::test_cd005 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestEcho::test_echo001 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestEcho::test_echo002 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestEcho::test_echo003 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestHelp::test_help01 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestHelp::test_help02 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestHelp::test_help_v PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestHelp::test_help_cat PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestLs::test_ls_l PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestLs::test_ls_s SKIPPED (No Ready)
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestLs::test_ls_R PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestRm::test_rm001 PASSED
../nuttx-ntfc/external/nuttx-testing/arch/nsh/test_arch_nsh_integration.py::TestRm::test_rm002 PASSED

@simbit18 or @lupyuen , do you have any idea what might be going on here? Any advice for getting closer to reproducing the CI conditions locally?

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Arch: arm Issues related to ARM (32-bit) architecture Arch: arm64 Issues related to ARM64 (64-bit) architecture Area: Drivers Drivers issues Board: arm Board: arm64 Size: XL The size of the change in this PR is very large. Consider breaking down the PR into smaller pieces.

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[FEATURE] Re-usable PL011 UART driver

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