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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-07-02 12:04:50 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-07-08 10:07:59 +0200 |
| commit | 3e02a472baf7764e37825257490e90df0487a778 (patch) | |
| tree | 7f8b178b4385f4f4211be628b822c4869b36783e /c/src/lib/libbsp/powerpc/qoriq/start/start.S | |
| parent | bsp/qoriq: Use -O2 for T series (diff) | |
| download | rtems-3e02a472baf7764e37825257490e90df0487a778.tar.bz2 | |
bsp/qoriq: Enable branch prediction for T series
Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/start/start.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index 6b2187c1be..8a073bf09e 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -66,6 +66,13 @@ _start: ori r0, INITIAL_MSR, MSR_IS | MSR_DS mtmsr r0 +#ifdef QORIQ_INITIAL_BUCSR + /* BUCSR initialization */ + LWI r0, QORIQ_INITIAL_BUCSR + mtspr FSL_EIS_BUCSR, r0 + isync +#endif + /* Initialize start stack */ LWI r1, start_stack_end - PPC_MINIMUM_STACK_FRAME_SIZE clrrwi r1, r1, PPC_STACK_ALIGN_POWER @@ -210,6 +217,13 @@ _start_secondary_processor: ori r0, INITIAL_MSR, MSR_IS | MSR_DS mtmsr r0 +#ifdef QORIQ_INITIAL_BUCSR + /* BUCSR initialization */ + LWI r0, QORIQ_INITIAL_BUCSR + mtspr FSL_EIS_BUCSR, r0 + isync +#endif + /* Initialize start stack */ subi r1, r1, PPC_MINIMUM_STACK_FRAME_SIZE clrrwi r1, r1, PPC_STACK_ALIGN_POWER |