imx: imx8mm-evk: enable ethernet
add phy-reset-gpios to reset phy
Add board_phy_config to configure phy
Enable DM_ETH
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c
index e474233..a0af550 100644
--- a/board/freescale/imx8mm_evk/imx8mm_evk.c
+++ b/board/freescale/imx8mm_evk/imx8mm_evk.c
@@ -4,6 +4,11 @@
*/
#include <common.h>
+#include <miiphy.h>
+#include <netdev.h>
+
+#include <asm/arch/clock.h>
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -14,8 +19,40 @@
return 0;
}
+#if IS_ENABLED(CONFIG_FEC_MXC)
+static int setup_fec(void)
+{
+ struct iomuxc_gpr_base_regs *gpr =
+ (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
+
+ /* Use 125M anatop REF_CLK1 for ENET1, not from external */
+ clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
+
+ return 0;
+}
+
+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);
+
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+ return 0;
+}
+#endif
+
int board_init(void)
{
+ if (IS_ENABLED(CONFIG_FEC_MXC))
+ setup_fec();
+
return 0;
}