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[U-Boot,1/2] net: gem: Check if phy was correctly detected

Message ID 135d2f06e2c95642defa91174fe5367ec45387e8.1388741947.git.michal.simek@xilinx.com
State Accepted
Delegated to: Joe Hershberger
Headers show

Commit Message

Michal Simek Jan. 3, 2014, 9:39 a.m. UTC 
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@xilinx.com>
---

 drivers/net/zynq_gem.c | 5 +++++
 1 file changed, 5 insertions(+)

--
1.8.2.3
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Patch

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,