ARM: 6292/1: coresight: add ETM management registers

Add notion of ETM OS lock, save and restore registers.

Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index 827753966301..9e9db63c298a 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -543,7 +543,7 @@ 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);
+        ret = etm_readl(t, ETMMR_PDSR);
 
         t->ncmppairs = etm_readl(t, ETMR_CONFCODE) & 0xf;
         etm_writel(t, 0x440, ETMR_CTRL);