m68k: mvme147: Handle timer counter overflow

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Reading the timer counter races with timer overflow (and the
corresponding interrupt). This is resolved by reading the overflow
register and taking this value into account. The interrupt handler
must clear the overflow register when it eventually executes.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

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Finn Thain 2018-12-01 11:53:10 +11:00 • committed by Geert Uytterhoeven

parent fc4c47b3b5

commit 7529b90d05

2 changed files with 12 additions and 10 deletions

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arch/m68k/include/asm/mvme147hw.h

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21

arch/m68k/mvme147/config.c

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