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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-07-09 10:40:35 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-07-09 10:43:10 +0200 |
| commit | a398909dc2312d11bfcd20643de1b2aa162b5abf (patch) | |
| tree | a903040c293c43e097066b956f02d4cae53554ae /bsps | |
| parent | bsps/imxrt: Fix undefined symbol (diff) | |
| download | rtems-a398909dc2312d11bfcd20643de1b2aa162b5abf.tar.bz2 | |
bsps/arm: Fix SMP start
Skip the data cache initialization if we are a secondary processor.
The bug was introduced by e164df5e33608576443b4cd5923a9046358ee773 and
did not show up in tests using Qemu since the data cache behaviour is
not emulated.
Diffstat (limited to 'bsps')
| -rw-r--r-- | bsps/arm/shared/start/start.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/bsps/arm/shared/start/start.S b/bsps/arm/shared/start/start.S index be87a16f7a..bc87e7b36d 100644 --- a/bsps/arm/shared/start/start.S +++ b/bsps/arm/shared/start/start.S @@ -404,6 +404,12 @@ _start: mcr p15, 0, r1, c1, c0, 0 isb +#ifdef RTEMS_SMP + /* Skip the data cache initialization if we are a secondary processor */ + cmp r7, #0 + bne .Ldata_caches_initialized +#endif + /* Check previous SCTLR[C] and initialize data caches */ tst r0, #0x4 bne .Lclean_invalidate_data_caches |