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authorLaurent Pinchart <laurentp@cse-semaphore.com>2008-05-26 13:53:45 +0400
committerJeff Garzik <jgarzik@redhat.com>2008-05-31 06:18:33 +0400
commitd8b35fac8c7e1b44d873c1afcc5f88bc5ef4b361 (patch)
tree9f506fb935596786a652274f7107f1d200d7a083 /drivers/net/fs_enet
parenta5edeccb1a8432ae5d9fb9bccea5a4b64c565017 (diff)
downloadlinux-d8b35fac8c7e1b44d873c1afcc5f88bc5ef4b361.tar.xz
fs_enet: MDIO on GPIO support
Port the fs_enet driver to support the MDIO on GPIO driver for PHY access in addition to the mii-bitbang driver. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/fs_enet')
-rw-r--r--drivers/net/fs_enet/fs_enet-main.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index a5baaf59ff66..fb7c47790bd6 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -43,6 +43,7 @@
#include <asm/uaccess.h>
#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_gpio.h>
#include <asm/of_platform.h>
#endif
@@ -1172,8 +1173,7 @@ static int __devinit find_phy(struct device_node *np,
struct fs_platform_info *fpi)
{
struct device_node *phynode, *mdionode;
- struct resource res;
- int ret = 0, len;
+ int ret = 0, len, bus_id;
const u32 *data;
data = of_get_property(np, "fixed-link", NULL);
@@ -1190,19 +1190,28 @@ static int __devinit find_phy(struct device_node *np,
if (!phynode)
return -EINVAL;
- mdionode = of_get_parent(phynode);
- if (!mdionode)
+ data = of_get_property(phynode, "reg", &len);
+ if (!data || len != 4) {
+ ret = -EINVAL;
goto out_put_phy;
+ }
- ret = of_address_to_resource(mdionode, 0, &res);
- if (ret)
- goto out_put_mdio;
+ mdionode = of_get_parent(phynode);
+ if (!mdionode) {
+ ret = -EINVAL;
+ goto out_put_phy;
+ }
- data = of_get_property(phynode, "reg", &len);
- if (!data || len != 4)
- goto out_put_mdio;
+ bus_id = of_get_gpio(mdionode, 0);
+ if (bus_id < 0) {
+ struct resource res;
+ ret = of_address_to_resource(mdionode, 0, &res);
+ if (ret)
+ goto out_put_mdio;
+ bus_id = res.start;
+ }
- snprintf(fpi->bus_id, 16, "%x:%02x", res.start, *data);
+ snprintf(fpi->bus_id, 16, "%x:%02x", bus_id, *data);
out_put_mdio:
of_node_put(mdionode);