From bdcf3a88cc582ce8bb9ea024fa917d9a52e05479 Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Tue, 22 Oct 2019 03:30:04 +0000
Subject: 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>
---
 board/freescale/imx8mm_evk/imx8mm_evk.c | 37 +++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'board')

diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c
index e4742338e3..a0af550f5e 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 @@ int dram_init(void)
 	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;
 }
 
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