[PATCH net 1/1] net: phy: dp83867: Fix SGMII FIFO depth for non OF devices

[Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>]

Current driver code will read device tree node information,
and set default values if there is no info provided.

This is not done in non-OF devices leading to SGMII fifo depths being
set to the smallest size.

This patch sets the value to the default value of the PHY as stated in the
PHY datasheet.

Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
---
 drivers/net/phy/dp83867.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 6939563d3b7c..fb7df4baaf6f 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -682,6 +682,13 @@ static int dp83867_of_init(struct phy_device *phydev)
 	 */
 	dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN / 2;
 
+	/* For non-OF device, the RX and TX FIFO depths are taken from
+	 * default value. So, we init RX & TX FIFO depths here
+	 * so that it is configured correctly later in dp83867_config_init();
+	 */
+	dp83867->tx_fifo_depth = DP83867_PHYCR_FIFO_DEPTH_4_B_NIB;
+	dp83867->rx_fifo_depth = DP83867_PHYCR_FIFO_DEPTH_4_B_NIB;
+
 	return 0;
 }
 #endif /* CONFIG_OF_MDIO */
-- 
2.34.1