diff options
Diffstat (limited to 'arch/arm/kernel/etm.c')
| -rw-r--r-- | arch/arm/kernel/etm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 827753966301..56418f98cd01 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -543,7 +543,9 @@ static int __init etm_probe(struct amba_device *dev, struct amba_id *id) t->etm_portsz = 1; etm_unlock(t); - ret = etm_readl(t, CSCR_PRSR); + (void)etm_readl(t, ETMMR_PDSR); + /* dummy first read */ + (void)etm_readl(&tracer, ETMMR_OSSRR); t->ncmppairs = etm_readl(t, ETMR_CONFCODE) & 0xf; etm_writel(t, 0x440, ETMR_CTRL); |