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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-12-21 10:08:30 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-12-23 09:24:47 +0100 |
| commit | 23d9223ad3b67156b99d828457d0ebd74687cf71 (patch) | |
| tree | 30337bb821ddfb05ff75884510085d4357760042 /bsps/arm/shared/start/start.S | |
| parent | bsps/arm: Clear SCTLR[M, I, A, C] in start.S (diff) | |
| download | rtems-23d9223ad3b67156b99d828457d0ebd74687cf71.tar.bz2 | |
bsps/arm: Invalidate TLB in start.S
Update #4202.
Diffstat (limited to 'bsps/arm/shared/start/start.S')
| -rw-r--r-- | bsps/arm/shared/start/start.S | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/bsps/arm/shared/start/start.S b/bsps/arm/shared/start/start.S index 0a3d4288cd..50bf1d4841 100644 --- a/bsps/arm/shared/start/start.S +++ b/bsps/arm/shared/start/start.S @@ -432,7 +432,16 @@ _start: */ mov r0, #0 mcr p15, 0, r0, c7, c5, 0 + +#if __ARM_ARCH_PROFILE == 'A' + /* + * Invalidate the TLB using ITLBIALL (Instruction TLB Invalidate All). + */ + mov r0, #0 + mcr p15, 0, r0, c8, c7, 0 + isb #endif +#endif /* (__ARM_ARCH >= 7 && __ARM_ARCH_PROFILE == 'A') || __ARM_ARCH >= 8 */ /* * Invoke the start hook 0. |