[U-Boot] [PATCH 1/2] net: gem: Check if phy was correctly detected
Michal Simek
michal.simek at xilinx.com
Fri Jan 3 10:39:10 CET 2014
As tsec and fm drivers checking phydev->link
ensure that u-boot don't try access device if link is not ready.
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---
drivers/net/zynq_gem.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 6a017a8..381bca4 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -339,6 +339,11 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
phy_config(phydev);
phy_startup(phydev);
+ if (!phydev->link) {
+ printf("%s: No link.\n", phydev->dev->name);
+ return -1;
+ }
+
switch (phydev->speed) {
case SPEED_1000:
writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED1000,
--
1.8.2.3
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