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tbs2910: Make Ethernet functional again 

Configure the PHY to output a 125MHz clk from CLK_25M and set tx clock delay.
This patch is similar to commit 4b6035da48
("mx6sabresd: Make Ethernet functional again").

Signed-off-by: Soeren Moch <smoch@web.de>
This commit is contained in:
Soeren Moch 2016-11-27 16:02:19 +01:00 committed by Stefano Babic
parent 15fde0fc11
commit 84a62ca85d
1 changed files with 33 additions and 0 deletions
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33
board/tbs/tbs2910/tbs2910.c
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@ -359,6 +359,39 @@ static void setup_display(void)
} }
#endif /* CONFIG_VIDEO_IPUV3 */ #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) int board_eth_init(bd_t *bis)
{ {
setup_iomux_enet(); setup_iomux_enet();