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Fix: Avoid a hang in scanning Cortex-A of STM32MP15x #1628

Merged
merged 9 commits into from
Sep 23, 2023
Merged

Fix: Avoid a hang in scanning Cortex-A of STM32MP15x #1628

merged 9 commits into from
Sep 23, 2023

Commits on Sep 22, 2023

  1. cortexa: Prevent disruptive target_halt in cortexa_probe

    @ALTracer
    ALTracer committed Sep 22, 2023
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  2. cortexa: Avoid resuming *not halted* cores

    @ALTracer
    ALTracer committed Sep 22, 2023
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  3. cortexa: Implement logging of DBG_DSCR bitfields decoded into names 

    Example output:

cortexa_attach: DBGOSLSR = 0x00000008
cortexa_attach: DBGDSCR = 0x02000002 (1)
Bits set in reg DBGDSCR: RESTARTED PipeAdv
cortexa_attach: DBGDSCR = 0x02006002 (2)
Bits set in reg DBGDSCR: RESTARTED ITRen HDBGen PipeAdv
cortexa_halt_poll: DBGDSCR = 0x03086003
    @ALTracer
    ALTracer committed Sep 22, 2023
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  4. cortexa: Check and clear OS Lock 

    * This fixes the BMD hang on scanning STM32MP15x SoCs
    @ALTracer
    ALTracer committed Sep 22, 2023
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  5. cortexa: Port over some more of OpenOCD manipulations

    @ALTracer
    ALTracer committed Sep 22, 2023
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  6. cortexa: Move OSLock/HDBGen/ITRen writes to run earlier, in cortexa_p… 

    …robe()

* Unblock the target_halt in cortexa_probe
* Move code setting up debug access from cortexa_detach() up to cortexa_probe()
* Scans of STM32MP15x still work, gdb shows $pc and registers
    @ALTracer
    ALTracer committed Sep 22, 2023
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  7. Revert "cortexa: Avoid resuming *not halted* cores" 

    This reverts commit fc93f6fa0df5d618c4c2027f52a003cba86ac386.
    @ALTracer
    ALTracer committed Sep 22, 2023
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Commits on Sep 23, 2023

  1. cortexa: style fixes 

    * Drop extraneous  parentheses
* Hide the helper behind ENABLE_DEBUG and a dummy implementation
* Replace one introduced %08X with %08PRIx32 for *firmware* builds
    @ALTracer
    ALTracer committed Sep 23, 2023
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  2. cortexa: Extend macro names for OS Lock related registers and bitfields

    @ALTracer
    ALTracer committed Sep 23, 2023
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