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authorLiu Gang <b34182@freescale.com>2011-11-02 13:39:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-02 16:07:01 -0700
commita571259f4874023306db36e83054d093833b1902 (patch)
treefc2aa71ab687411e3413353fc0ed70463d929c3e /drivers/rapidio/rio-scan.c
parent79975f1327850ef198ada994c2fc44b7d1ea8935 (diff)
downloadop-kernel-dev-a571259f4874023306db36e83054d093833b1902.zip
op-kernel-dev-a571259f4874023306db36e83054d093833b1902.tar.gz
drivers/rapidio/rio-scan.c: use discovered bit to test if enumeration is complete
The discovered bit in PGCCSR register indicates if the device has been discovered by system host. In Rapidio systems, some agent devices can also be master devices. They can issue requests into the system. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/rio-scan.c')
-rw-r--r--drivers/rapidio/rio-scan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index ebe77dd..0914f49 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -923,7 +923,7 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
* rio_enum_complete- Tests if enumeration of a network is complete
* @port: Master port to send transaction
*
- * Tests the Component Tag CSR for non-zero value (enumeration
+ * Tests the PGCCSR discovered bit for non-zero value (enumeration
* complete flag). Return %1 if enumeration is complete or %0 if
* enumeration is incomplete.
*/
@@ -933,7 +933,7 @@ static int rio_enum_complete(struct rio_mport *port)
rio_local_read_config_32(port, port->phys_efptr + RIO_PORT_GEN_CTL_CSR,
&regval);
- return (regval & RIO_PORT_GEN_MASTER) ? 1 : 0;
+ return (regval & RIO_PORT_GEN_DISCOVERED) ? 1 : 0;
}
/**
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