Hi Philippe,
On Mon, Mar 9, 2020 at 8:25 PM Philippe Schenker philippe.schenker@toradex.com wrote:
This patches uses the existing functions for interacting with the KSZ9031 and uses the values appropriate for our board.
Signed-off-by: Philippe Schenker philippe.schenker@toradex.com
board/toradex/verdin-imx8mm/verdin-imx8mm.c | 32 +++++++++++++++------ 1 file changed, 24 insertions(+), 8 deletions(-)
diff --git a/board/toradex/verdin-imx8mm/verdin-imx8mm.c b/board/toradex/verdin-imx8mm/verdin-imx8mm.c index 16b9fa1ec18..3177ba53907 100644 --- a/board/toradex/verdin-imx8mm/verdin-imx8mm.c +++ b/board/toradex/verdin-imx8mm/verdin-imx8mm.c @@ -8,6 +8,7 @@ #include <asm/io.h> #include <miiphy.h> #include <netdev.h> +#include <micrel.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -32,14 +33,29 @@ static int setup_fec(void)
int board_phy_config(struct phy_device *phydev) {
/* enable rgmii rxc skew and phy mode select to RGMII copper */phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
/** The PHY adds 1.2ns for the RXC and 0ns for TXC clock by* default. The MAC and the layout don't add a skew between* clock and data.* Add 0.3ns for the RXC path and 0.96 + 0.42 ns (1.38 ns) for* the TXC path to get the required clock skews.*//* control data pad skew - devaddr = 0x02, register = 0x04 */ksz9031_phy_extended_write(phydev, 0x02,MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0070);/* rx data pad skew - devaddr = 0x02, register = 0x05 */ksz9031_phy_extended_write(phydev, 0x02,MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x7777);/* tx data pad skew - devaddr = 0x02, register = 0x06 */ksz9031_phy_extended_write(phydev, 0x02,MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);/* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */ksz9031_phy_extended_write(phydev, 0x02,MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03f4); if (phydev->drv->config) phydev->drv->config(phydev);-- 2.25.1
Tested-by: Igor Opaniuk igor.opaniuk@toradex.com Acked-by: Igor Opaniuk igor.opaniuk@toradex.com