diff options
| author | Daniel Hellstrom <daniel@gaisler.com> | 2013-09-10 13:46:29 +0200 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2015-04-17 01:10:20 +0200 |
| commit | acf7047e2ac7ece2ceba0a8e13b4df235851f7d0 (patch) | |
| tree | 7c1ebe513097a4ce169f4d7d185c7b90cff720e6 /c/src/lib/libbsp/sparc/shared/timer | |
| parent | LEON PCI: host bridge driver support for probing dev0=AD16 (diff) | |
| download | rtems-acf7047e2ac7ece2ceba0a8e13b4df235851f7d0.tar.bz2 | |
GPTIMER: timer probing must not be on timer0
Timers are identical within one GPTIMER core. Probing only the
first timer is sufficient, however the first timer was hardcoded
to timer0 which is not correct in a multi-OS system like RTEMS
AMP. This patch makes sure that probing is done on the first
timer that can be used by this RTEMS instance. Without this
patch RTEMS AMP is broken on systems (like the GR712RC) where
there is only one GPTIMER core proviing multiple timers. Designs
(like the NGMP/FP) where there are multiple GPTIMER cores are not
affected.
Diffstat (limited to 'c/src/lib/libbsp/sparc/shared/timer')
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/timer/gptimer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/timer/gptimer.c b/c/src/lib/libbsp/sparc/shared/timer/gptimer.c index 6a7e835f74..2cc181ace8 100644 --- a/c/src/lib/libbsp/sparc/shared/timer/gptimer.c +++ b/c/src/lib/libbsp/sparc/shared/timer/gptimer.c @@ -272,8 +272,8 @@ int gptimer_init1(struct drvmgr_dev *dev) * timer has pending bit is cleared by writing a one to it, * whereas older versions it is cleared with a zero. */ - priv->regs->timer[0].ctrl = GPTIMER_CTRL_IP; - if ((priv->regs->timer[0].ctrl & GPTIMER_CTRL_IP) != 0) + priv->regs->timer[timer_start].ctrl = GPTIMER_CTRL_IP; + if ((priv->regs->timer[timer_start].ctrl & GPTIMER_CTRL_IP) != 0) irq_ack_mask = ~GPTIMER_CTRL_IP; else irq_ack_mask = ~0; |