[U-Boot] [PATCH] tbs2910: Make Ethernet functional again

[Soeren Moch]

Configure the PHY to output a 125MHz clk from CLK_25M and set tx clock delay.
This patch is similar to commit 4b6035da482cccda06aeb419634f99937c9fc783
("mx6sabresd: Make Ethernet functional again").

Signed-off-by: Soeren Moch <smoch at web.de>
---
Cc: Stefano Babic <sbabic at denx.de>
Cc: Fabio Estevam <fabio.estevam at nxp.com>
Cc: u-boot at lists.denx.de
---
 board/tbs/tbs2910/tbs2910.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/board/tbs/tbs2910/tbs2910.c b/board/tbs/tbs2910/tbs2910.c
index 0d9d17a..db0c58f 100644
--- a/board/tbs/tbs2910/tbs2910.c
+++ b/board/tbs/tbs2910/tbs2910.c
@@ -359,6 +359,39 @@ static void setup_display(void)
 }
 #endif /* CONFIG_VIDEO_IPUV3 */
 
+static int ar8035_phy_fixup(struct phy_device *phydev)
+{
+	unsigned short val;
+
+	/* To enable AR8035 ouput a 125MHz clk from CLK_25M */
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
+
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
+	val &= 0xffe3;
+	val |= 0x18;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
+
+	/* introduce tx clock delay */
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
+	val |= 0x0100;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
+
+	return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	ar8035_phy_fixup(phydev);
+
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+
 int board_eth_init(bd_t *bis)
 {
 	setup_iomux_enet();
-- 
1.9.1