From 60f64bec414e139baa8764b56071eb22a1460c36 Mon Sep 17 00:00:00 2001
From: Teresa Remmet <t.remmet@phytec.de>
Date: Wed, 7 Jul 2021 12:58:00 +0000
Subject: [PATCH] board: phytec: phycore_imx8mp: Add fec support

Enable support for the fec ethernet on phyCORE-i.MX8MP.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
---
 board/phytec/phycore_imx8mp/phycore-imx8mp.c | 14 ++++++++++++++
 configs/phycore-imx8mp_defconfig             |  7 +++++++
 include/configs/phycore_imx8mp.h             | 17 +++++++++++++++++
 3 files changed, 38 insertions(+)

diff --git a/board/phytec/phycore_imx8mp/phycore-imx8mp.c b/board/phytec/phycore_imx8mp/phycore-imx8mp.c
index 67649078c2..a8f0821437 100644
--- a/board/phytec/phycore_imx8mp/phycore-imx8mp.c
+++ b/board/phytec/phycore_imx8mp/phycore-imx8mp.c
@@ -10,11 +10,25 @@
 #include <asm/io.h>
 #include <asm/mach-imx/boot_mode.h>
 #include <env.h>
+#include <miiphy.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+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_init(void)
 {
+	setup_fec();
+
 	return 0;
 }
 
diff --git a/configs/phycore-imx8mp_defconfig b/configs/phycore-imx8mp_defconfig
index 7f21e8888e..a22f5e089d 100644
--- a/configs/phycore-imx8mp_defconfig
+++ b/configs/phycore-imx8mp_defconfig
@@ -58,6 +58,7 @@ CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SYS_MMC_ENV_DEV=2
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SPL_DM=y
 CONFIG_CLK_COMPOSITE_CCF=y
 CONFIG_CLK_IMX8MP=y
@@ -79,7 +80,13 @@ CONFIG_MMC_UHS_SUPPORT=y
 CONFIG_MMC_HS400_ES_SUPPORT=y
 CONFIG_MMC_HS400_SUPPORT=y
 CONFIG_FSL_ESDHC_IMX=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_TI_DP83867=y
 CONFIG_DM_ETH=y
+CONFIG_DM_ETH_PHY=y
+CONFIG_FEC_MXC=y
+CONFIG_RGMII=y
+CONFIG_MII=y
 CONFIG_PINCTRL=y
 CONFIG_SPL_PINCTRL=y
 CONFIG_PINCTRL_IMX8M=y
diff --git a/include/configs/phycore_imx8mp.h b/include/configs/phycore_imx8mp.h
index e24f223c21..75f84e60f5 100644
--- a/include/configs/phycore_imx8mp.h
+++ b/include/configs/phycore_imx8mp.h
@@ -42,6 +42,7 @@
 	"console=ttymxc0,115200\0" \
 	"fdt_addr=0x48000000\0" \
 	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"ip_dyn=yes\0" \
 	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
 	"mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
 	"mmcroot=2\0" \
@@ -57,6 +58,22 @@
 		"else " \
 			"echo WARN: Cannot load the DT; " \
 		"fi;\0 " \
+	"nfsroot=/nfs\0" \
+	"netargs=setenv bootargs console=${console} root=/dev/nfs ip=dhcp " \
+		"nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+	"netboot=echo Booting from net ...; " \
+		"run netargs; " \
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"${get_cmd} ${loadaddr} ${image}; " \
+		"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+			"booti ${loadaddr} - ${fdt_addr}; " \
+		"else " \
+			"echo WARN: Cannot load the DT; " \
+		"fi;\0" \
 
 #define CONFIG_BOOTCOMMAND \
 	"mmc dev ${mmcdev}; if mmc rescan; then " \
-- 
2.39.5