From 03279b7d1f0b81f0d635718802352ce64bb01965 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Mon, 3 Feb 2020 14:23:58 -0300
Subject: [PATCH] mx6ullevk: Enable Ethernet support

Add Ethernet support using DM_ETH.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
 board/freescale/mx6ullevk/mx6ullevk.c | 47 +++++++++++++++++++++++++++
 configs/mx6ull_14x14_evk_defconfig    |  8 +++++
 include/configs/mx6ullevk.h           |  9 +++++
 3 files changed, 64 insertions(+)

diff --git a/board/freescale/mx6ullevk/mx6ullevk.c b/board/freescale/mx6ullevk/mx6ullevk.c
index e1eddbff95..3f1ecce10f 100644
--- a/board/freescale/mx6ullevk/mx6ullevk.c
+++ b/board/freescale/mx6ullevk/mx6ullevk.c
@@ -19,6 +19,7 @@
 #include <fsl_esdhc_imx.h>
 #include <linux/sizes.h>
 #include <mmc.h>
+#include <miiphy.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -60,11 +61,57 @@ int board_early_init_f(void)
 	return 0;
 }
 
+#ifdef CONFIG_FEC_MXC
+static int setup_fec(int fec_id)
+{
+	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+	int ret;
+
+	if (fec_id == 0) {
+		/*
+		 * Use 50MHz anatop loopback REF_CLK1 for ENET1,
+		 * clear gpr1[13], set gpr1[17].
+		 */
+		clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
+				IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
+	} else {
+		/*
+		 * Use 50MHz anatop loopback REF_CLK2 for ENET2,
+		 * clear gpr1[14], set gpr1[18].
+		 */
+		clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
+				IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
+	}
+
+	ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
+	if (ret)
+		return ret;
+
+	enable_enet_clk(1);
+
+	return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
+
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+#endif
+
 int board_init(void)
 {
 	/* Address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
+#ifdef	CONFIG_FEC_MXC
+	setup_fec(CONFIG_FEC_ENET_DEV);
+#endif
+
 	return 0;
 }
 
diff --git a/configs/mx6ull_14x14_evk_defconfig b/configs/mx6ull_14x14_evk_defconfig
index 2c69d8d6de..c16ecfab49 100644
--- a/configs/mx6ull_14x14_evk_defconfig
+++ b/configs/mx6ull_14x14_evk_defconfig
@@ -38,9 +38,17 @@ CONFIG_DM_SPI_FLASH=y
 CONFIG_SF_DEFAULT_MODE=0
 CONFIG_SF_DEFAULT_SPEED=40000000
 CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ8XXX=y
+CONFIG_FEC_MXC=y
+CONFIG_DM_ETH=y
+CONFIG_MII=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y
 CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_FSL_QSPI=y
diff --git a/include/configs/mx6ullevk.h b/include/configs/mx6ullevk.h
index 7cce911314..af335bcfff 100644
--- a/include/configs/mx6ullevk.h
+++ b/include/configs/mx6ullevk.h
@@ -166,4 +166,13 @@
 #define FSL_QSPI_FLASH_SIZE		SZ_32M
 #endif
 
+#ifdef CONFIG_CMD_NET
+#define CONFIG_FEC_ENET_DEV		1
+#if (CONFIG_FEC_ENET_DEV == 0)
+#define CONFIG_ETHPRIME			"eth0"
+#elif (CONFIG_FEC_ENET_DEV == 1)
+#define CONFIG_ETHPRIME			"eth1"
+#endif
+#endif
+
 #endif
-- 
2.39.5