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| author | Nick Withers <nick.withers@anu.edu.au> | 2015-07-15 08:55:42 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-07-15 09:02:32 +0200 |
| commit | e2fcb7dc64c040b8298684148390aba6bf4f4912 (patch) | |
| tree | b29508f6a1c06c8ca03f3f7e67e073b92df84570 /cpukit | |
| parent | libcsupport: Workaround for GCC 5.1 and later (diff) | |
| download | rtems-e2fcb7dc64c040b8298684148390aba6bf4f4912.tar.bz2 | |
powerpc: Fix _CPU_Counter_read()
The mftb is not available on Book E processors. Use SPR 268 instead.
Close #2369.
Diffstat (limited to 'cpukit')
| -rw-r--r-- | cpukit/score/cpu/powerpc/rtems/score/cpu.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h index 06cab2c156..45298a46dd 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h @@ -842,7 +842,7 @@ static inline CPU_Counter_ticks _CPU_Counter_read( void ) /* Use Alternate Time Base */ __asm__ volatile( "mfspr %0, 526" : "=r" (value) ); #else - __asm__ volatile( "mftb %0" : "=r" (value) ); + __asm__ volatile( "mfspr %0, 268" : "=r" (value) ); #endif return value; |