Merge branch '2023-02-10-assorted-updates-and-additions'

- DM_SERIAL conversion for bcm7xxx, button input driver, qcom updates,
  environment and network related cleanup, ftmac100 update, add a
  IS_ENABLED conversion that was just missed.

16 files changed, 1541 insertions, 18 deletions

diff --git a/drivers/button/button-gpio.c b/drivers/button/button-gpio.c
index dbb000622c7..7b5b3affe2d 100644
--- a/drivers/button/button-gpio.c
+++ b/drivers/button/button-gpio.c
@@ -13,6 +13,7 @@
 
 struct button_gpio_priv {
 	struct gpio_desc gpio;
+	int linux_code;
 };
 
 static enum button_state_t button_gpio_get_state(struct udevice *dev)
@@ -29,6 +30,17 @@ static enum button_state_t button_gpio_get_state(struct udevice *dev)
 	return ret ? BUTTON_ON : BUTTON_OFF;
 }
 
+static int button_gpio_get_code(struct udevice *dev)
+{
+	struct button_gpio_priv *priv = dev_get_priv(dev);
+	int code = priv->linux_code;
+
+	if (!code)
+		return -ENODATA;
+
+	return code;
+}
+
 static int button_gpio_probe(struct udevice *dev)
 {
 	struct button_uc_plat *uc_plat = dev_get_uclass_plat(dev);
@@ -43,7 +55,9 @@ static int button_gpio_probe(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	return 0;
+	ret = dev_read_u32(dev, "linux,code", &priv->linux_code);
+
+	return ret;
 }
 
 static int button_gpio_remove(struct udevice *dev)
@@ -92,6 +106,7 @@ static int button_gpio_bind(struct udevice *parent)
 
 static const struct button_ops button_gpio_ops = {
 	.get_state	= button_gpio_get_state,
+	.get_code	= button_gpio_get_code,
 };
 
 static const struct udevice_id button_gpio_ids[] = {
diff --git a/drivers/button/button-uclass.c b/drivers/button/button-uclass.c
index e33ed7d01d1..032191d61ab 100644
--- a/drivers/button/button-uclass.c
+++ b/drivers/button/button-uclass.c
@@ -38,6 +38,16 @@ enum button_state_t button_get_state(struct udevice *dev)
 	return ops->get_state(dev);
 }
 
+int button_get_code(struct udevice *dev)
+{
+	struct button_ops *ops = button_get_ops(dev);
+
+	if (!ops->get_code)
+		return -ENOSYS;
+
+	return ops->get_code(dev);
+}
+
 UCLASS_DRIVER(button) = {
 	.id		= UCLASS_BUTTON,
 	.name		= "button",
diff --git a/drivers/gpio/qcom_pmic_gpio.c b/drivers/gpio/qcom_pmic_gpio.c
index 3be1be8692c..65feb453ebc 100644
--- a/drivers/gpio/qcom_pmic_gpio.c
+++ b/drivers/gpio/qcom_pmic_gpio.c
@@ -303,9 +303,25 @@ static int qcom_pwrkey_get_value(struct udevice *dev, unsigned offset)
 	}
 }
 
+/*
+ * Since pmic buttons modelled as GPIO, we need empty direction functions
+ * to trick u-boot button driver
+ */
+static int qcom_pwrkey_direction_input(struct udevice *dev, unsigned int offset)
+{
+	return 0;
+}
+
+static int qcom_pwrkey_direction_output(struct udevice *dev, unsigned int offset, int value)
+{
+	return -EOPNOTSUPP;
+}
+
 static const struct dm_gpio_ops qcom_pwrkey_ops = {
 	.get_value		= qcom_pwrkey_get_value,
 	.get_function		= qcom_pwrkey_get_function,
+	.direction_input	= qcom_pwrkey_direction_input,
+	.direction_output	= qcom_pwrkey_direction_output,
 };
 
 static int qcom_pwrkey_probe(struct udevice *dev)
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 76e19918aad..427074bff83 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -580,6 +580,18 @@ config SYS_I2C_OCTEON
 	  chips have several I2C ports and all are provided, controlled by
 	  the device tree.
 
+config SYS_I2C_QUP
+	bool "Qualcomm QUP I2C controller"
+	depends on ARCH_SNAPDRAGON
+	help
+	  Support for Qualcomm QUP I2C controller based on Qualcomm Universal
+	  Peripherals (QUP) engine. The QUP engine is an advanced high
+	  performance slave port that provides a common data path (an output
+	  FIFO and an input FIFO) for I2C and SPI interfaces. The I2C/SPI QUP
+	  controller is publicly documented in the Snapdragon 410E (APQ8016E)
+	  Technical Reference Manual, chapter "6.1 Qualcomm Universal
+	  Peripherals Engine (QUP)".
+
 config SYS_I2C_S3C24X0
 	bool "Samsung I2C driver"
 	depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && DM_I2C
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index cde0597290c..8a70b5ba88e 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -37,6 +37,7 @@ obj-$(CONFIG_SYS_I2C_NPCM) += npcm_i2c.o
 obj-$(CONFIG_SYS_I2C_OCORES) += ocores_i2c.o
 obj-$(CONFIG_SYS_I2C_OCTEON) += octeon_i2c.o
 obj-$(CONFIG_SYS_I2C_OMAP24XX) += omap24xx_i2c.o
+obj-$(CONFIG_SYS_I2C_QUP) += qup_i2c.o
 obj-$(CONFIG_SYS_I2C_RCAR_I2C) += rcar_i2c.o
 obj-$(CONFIG_SYS_I2C_RCAR_IIC) += rcar_iic.o
 obj-$(CONFIG_SYS_I2C_ROCKCHIP) += rk_i2c.o
diff --git a/drivers/i2c/qup_i2c.c b/drivers/i2c/qup_i2c.c
new file mode 100644
index 00000000000..5ae3cccd4ac
--- /dev/null
+++ b/drivers/i2c/qup_i2c.c
@@ -0,0 +1,579 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2009-2013, 2016-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014, Sony Mobile Communications AB.
+ * Copyright (c) 2022-2023, Sumit Garg <[email protected]>
+ *
+ * Inspired by corresponding driver in Linux: drivers/i2c/busses/i2c-qup.c
+ */
+
+#include <init.h>
+#include <env.h>
+#include <common.h>
+#include <log.h>
+#include <dm/device_compat.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/compat.h>
+#include <linux/bitops.h>
+#include <asm/io.h>
+#include <i2c.h>
+#include <watchdog.h>
+#include <fdtdec.h>
+#include <clk.h>
+#include <reset.h>
+#include <asm/arch/gpio.h>
+#include <cpu_func.h>
+#include <asm/system.h>
+#include <asm/gpio.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+
+/* QUP Registers */
+#define QUP_CONFIG				0x000
+#define QUP_STATE				0x004
+#define QUP_IO_MODE				0x008
+#define QUP_SW_RESET				0x00c
+#define QUP_OPERATIONAL				0x018
+#define QUP_ERROR_FLAGS				0x01c /* NOT USED */
+#define QUP_ERROR_FLAGS_EN			0x020 /* NOT USED */
+#define QUP_TEST_CTRL				0x024 /* NOT USED */
+#define QUP_OPERATIONAL_MASK			0x028 /* NOT USED */
+#define QUP_HW_VERSION				0x030
+#define QUP_MX_OUTPUT_CNT			0x100
+#define QUP_OUT_DEBUG				0x108 /* NOT USED */
+#define QUP_OUT_FIFO_CNT			0x10C /* NOT USED */
+#define QUP_OUT_FIFO_BASE			0x110
+#define QUP_MX_WRITE_CNT			0x150
+#define QUP_MX_INPUT_CNT			0x200
+#define QUP_MX_READ_CNT				0x208
+#define QUP_IN_READ_CUR				0x20C /* NOT USED */
+#define QUP_IN_DEBUG				0x210 /* NOT USED */
+#define QUP_IN_FIFO_CNT				0x214 /* NOT USED */
+#define QUP_IN_FIFO_BASE			0x218
+#define QUP_I2C_CLK_CTL				0x400
+#define QUP_I2C_STATUS				0x404 /* NOT USED */
+#define QUP_I2C_MASTER_GEN			0x408
+#define QUP_I2C_MASTER_BUS_CLR			0x40C /* NOT USED */
+
+/* QUP States and reset values */
+#define QUP_RESET_STATE				0
+#define QUP_RUN_STATE				1
+#define QUP_PAUSE_STATE				3
+#define QUP_STATE_MASK				3
+
+#define QUP_STATE_VALID				BIT(2)
+#define QUP_I2C_MAST_GEN			BIT(4)
+#define QUP_I2C_FLUSH				BIT(6)
+
+#define QUP_OPERATIONAL_RESET			0x000ff0
+#define QUP_I2C_STATUS_RESET			0xfffffc
+
+/* QUP OPERATIONAL FLAGS */
+#define QUP_I2C_NACK_FLAG			BIT(3)
+#define QUP_OUT_NOT_EMPTY			BIT(4)
+#define QUP_IN_NOT_EMPTY			BIT(5)
+#define QUP_OUT_FULL				BIT(6)
+#define QUP_OUT_SVC_FLAG			BIT(8)
+#define QUP_IN_SVC_FLAG				BIT(9)
+#define QUP_MX_OUTPUT_DONE			BIT(10)
+#define QUP_MX_INPUT_DONE			BIT(11)
+#define OUT_BLOCK_WRITE_REQ			BIT(12)
+#define IN_BLOCK_READ_REQ			BIT(13)
+
+/*
+ * QUP engine acting as I2C controller is referred to as
+ * I2C mini core, following are related macros.
+ */
+#define QUP_NO_OUTPUT				BIT(6)
+#define QUP_NO_INPUT				BIT(7)
+#define QUP_CLOCK_AUTO_GATE			BIT(13)
+#define QUP_I2C_MINI_CORE			(2 << 8)
+#define QUP_I2C_N_VAL_V2			7
+
+/* Packing/Unpacking words in FIFOs, and IO modes */
+#define QUP_OUTPUT_BLK_MODE			BIT(10)
+#define QUP_OUTPUT_BAM_MODE			(BIT(10) | BIT(11))
+#define QUP_INPUT_BLK_MODE			BIT(12)
+#define QUP_INPUT_BAM_MODE			(BIT(12) | BIT(13))
+#define QUP_BAM_MODE				(QUP_OUTPUT_BAM_MODE | QUP_INPUT_BAM_MODE)
+#define QUP_BLK_MODE				(QUP_OUTPUT_BLK_MODE | QUP_INPUT_BLK_MODE)
+#define QUP_UNPACK_EN				BIT(14)
+#define QUP_PACK_EN				BIT(15)
+
+#define QUP_REPACK_EN				(QUP_UNPACK_EN | QUP_PACK_EN)
+#define QUP_V2_TAGS_EN				1
+
+#define QUP_OUTPUT_BLOCK_SIZE(x)		(((x) >> 0) & 0x03)
+#define QUP_OUTPUT_FIFO_SIZE(x)			(((x) >> 2) & 0x07)
+#define QUP_INPUT_BLOCK_SIZE(x)			(((x) >> 5) & 0x03)
+#define QUP_INPUT_FIFO_SIZE(x)			(((x) >> 7) & 0x07)
+
+/* QUP v2 tags */
+#define QUP_TAG_V2_START			0x81
+#define QUP_TAG_V2_DATAWR			0x82
+#define QUP_TAG_V2_DATAWR_STOP			0x83
+#define QUP_TAG_V2_DATARD			0x85
+#define QUP_TAG_V2_DATARD_NACK			0x86
+#define QUP_TAG_V2_DATARD_STOP			0x87
+
+#define QUP_I2C_MX_CONFIG_DURING_RUN		BIT(31)
+
+/* Minimum transfer timeout for i2c transfers in micro seconds */
+#define TOUT_CNT				(2 * 1000 * 1000)
+
+/* Default values. Use these if FW query fails */
+#define DEFAULT_CLK_FREQ			I2C_SPEED_STANDARD_RATE
+#define DEFAULT_SRC_CLK				19200000
+
+/*
+ * Max tags length (start, stop and maximum 2 bytes address) for each QUP
+ * data transfer
+ */
+#define QUP_MAX_TAGS_LEN			4
+/* Max data length for each DATARD tags */
+#define RECV_MAX_DATA_LEN			254
+/* TAG length for DATA READ in RX FIFO */
+#define READ_RX_TAGS_LEN			2
+
+struct qup_i2c_priv {
+	phys_addr_t base;
+	struct clk core;
+	struct clk iface;
+	u32 in_fifo_sz;
+	u32 out_fifo_sz;
+	u32 clk_ctl;
+	u32 config_run;
+};
+
+static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg)
+{
+	return (msg->addr << 1) | (msg->flags & I2C_M_RD ? 1 : 0);
+}
+
+static int qup_i2c_poll_state_mask(struct qup_i2c_priv *qup,
+				   u32 req_state, u32 req_mask)
+{
+	int retries = 1;
+	u32 state;
+
+	/*
+	 * State transition takes 3 AHB clocks cycles + 3 I2C master clock
+	 * cycles. So retry once after a 1uS delay.
+	 */
+	do {
+		state = readl(qup->base + QUP_STATE);
+
+		if (state & QUP_STATE_VALID &&
+		    (state & req_mask) == req_state)
+			return 0;
+
+		udelay(1);
+	} while (retries--);
+
+	return -ETIMEDOUT;
+}
+
+static int qup_i2c_poll_state(struct qup_i2c_priv *qup, u32 req_state)
+{
+	return qup_i2c_poll_state_mask(qup, req_state, QUP_STATE_MASK);
+}
+
+static int qup_i2c_poll_state_valid(struct qup_i2c_priv *qup)
+{
+	return qup_i2c_poll_state_mask(qup, 0, 0);
+}
+
+static int qup_i2c_poll_state_i2c_master(struct qup_i2c_priv *qup)
+{
+	return qup_i2c_poll_state_mask(qup, QUP_I2C_MAST_GEN, QUP_I2C_MAST_GEN);
+}
+
+static int qup_i2c_change_state(struct qup_i2c_priv *qup, u32 state)
+{
+	if (qup_i2c_poll_state_valid(qup) != 0)
+		return -EIO;
+
+	writel(state, qup->base + QUP_STATE);
+
+	if (qup_i2c_poll_state(qup, state) != 0)
+		return -EIO;
+	return 0;
+}
+
+/*
+ * Function to check wheather Input or Output FIFO
+ * has data to be serviced
+ */
+static int qup_i2c_check_fifo_status(struct qup_i2c_priv *qup, u32 reg_addr,
+				     u32 flags)
+{
+	unsigned long count = TOUT_CNT;
+	u32 val, status_flag;
+	int ret = 0;
+
+	do {
+		val = readl(qup->base + reg_addr);
+		status_flag = val & flags;
+
+		if (!count) {
+			printf("%s, timeout\n", __func__);
+			ret = -ETIMEDOUT;
+			break;
+		}
+
+		count--;
+		udelay(1);
+	} while (!status_flag);
+
+	return ret;
+}
+
+/*
+ * Function to configure Input and Output enable/disable
+ */
+static void qup_i2c_enable_io_config(struct qup_i2c_priv *qup, u32 write_cnt,
+				     u32 read_cnt)
+{
+	u32 qup_config = QUP_I2C_MINI_CORE | QUP_I2C_N_VAL_V2;
+
+	writel(qup->config_run | write_cnt, qup->base + QUP_MX_WRITE_CNT);
+
+	if (read_cnt)
+		writel(qup->config_run | read_cnt, qup->base + QUP_MX_READ_CNT);
+	else
+		qup_config |= QUP_NO_INPUT;
+
+	writel(qup_config, qup->base + QUP_CONFIG);
+}
+
+static unsigned int qup_i2c_read_word(struct qup_i2c_priv *qup)
+{
+	return readl(qup->base + QUP_IN_FIFO_BASE);
+}
+
+static void qup_i2c_write_word(struct qup_i2c_priv *qup, u32 word)
+{
+	writel(word, qup->base + QUP_OUT_FIFO_BASE);
+}
+
+static int qup_i2c_blsp_read(struct qup_i2c_priv *qup, unsigned int addr,
+			     bool last, u8 *buffer, unsigned int bytes)
+{
+	unsigned int i, j, word;
+	int ret = 0;
+
+	/* FIFO mode size limitation, for larger size implement block mode */
+	if (bytes > (qup->in_fifo_sz - READ_RX_TAGS_LEN))
+		return -EINVAL;
+
+	qup_i2c_enable_io_config(qup, QUP_MAX_TAGS_LEN,
+				 bytes + READ_RX_TAGS_LEN);
+
+	if (last)
+		qup_i2c_write_word(qup, QUP_TAG_V2_START | addr << 8 |
+					QUP_TAG_V2_DATARD_STOP << 16 |
+					bytes << 24);
+	else
+		qup_i2c_write_word(qup, QUP_TAG_V2_START | addr << 8 |
+					QUP_TAG_V2_DATARD << 16 | bytes << 24);
+
+	ret = qup_i2c_change_state(qup, QUP_RUN_STATE);
+	if (ret)
+		return ret;
+
+	ret = qup_i2c_check_fifo_status(qup, QUP_OPERATIONAL, QUP_OUT_SVC_FLAG);
+	if (ret)
+		return ret;
+	writel(QUP_OUT_SVC_FLAG, qup->base + QUP_OPERATIONAL);
+
+	ret = qup_i2c_check_fifo_status(qup, QUP_OPERATIONAL, QUP_IN_SVC_FLAG);
+	if (ret)
+		return ret;
+	writel(QUP_IN_SVC_FLAG, qup->base + QUP_OPERATIONAL);
+
+	word = qup_i2c_read_word(qup);
+	*(buffer++) = (word >> (8 * READ_RX_TAGS_LEN)) & 0xff;
+	if (bytes > 1)
+		*(buffer++) = (word >> (8 * (READ_RX_TAGS_LEN + 1))) & 0xff;
+
+	for (i = 2; i < bytes; i += 4) {
+		word = qup_i2c_read_word(qup);
+
+		for (j = 0; j < 4; j++) {
+			if ((i + j) == bytes)
+				break;
+			*buffer = (word >> (j * 8)) & 0xff;
+			buffer++;
+		}
+	}
+
+	ret = qup_i2c_change_state(qup, QUP_PAUSE_STATE);
+	return ret;
+}
+
+static int qup_i2c_blsp_write(struct qup_i2c_priv *qup, unsigned int addr,
+			      bool first, bool last, const u8 *buffer,
+			      unsigned int bytes)
+{
+	unsigned int i;
+	u32 word = 0;
+	int ret = 0;
+
+	/* FIFO mode size limitation, for larger size implement block mode */
+	if (bytes > (qup->out_fifo_sz - QUP_MAX_TAGS_LEN))
+		return -EINVAL;
+
+	qup_i2c_enable_io_config(qup, bytes + QUP_MAX_TAGS_LEN, 0);
+
+	if (first) {
+		ret = qup_i2c_change_state(qup, QUP_RUN_STATE);
+		if (ret)
+			return ret;
+
+		writel(qup->clk_ctl, qup->base + QUP_I2C_CLK_CTL);
+
+		ret = qup_i2c_change_state(qup, QUP_PAUSE_STATE);
+		if (ret)
+			return ret;
+	}
+
+	if (last)
+		qup_i2c_write_word(qup, QUP_TAG_V2_START | addr << 8 |
+					QUP_TAG_V2_DATAWR_STOP << 16 |
+					bytes << 24);
+	else
+		qup_i2c_write_word(qup, QUP_TAG_V2_START | addr << 8 |
+					QUP_TAG_V2_DATAWR << 16 | bytes << 24);
+
+	for (i = 0; i < bytes; i++) {
+		/* Write the byte of data */
+		word |= *buffer << ((i % 4) * 8);
+		if ((i % 4) == 3) {
+			qup_i2c_write_word(qup, word);
+			word = 0;
+		}
+		buffer++;
+	}
+
+	if ((i % 4) != 0)
+		qup_i2c_write_word(qup, word);
+
+	ret = qup_i2c_change_state(qup, QUP_RUN_STATE);
+	if (ret)
+		return ret;
+
+	ret = qup_i2c_check_fifo_status(qup, QUP_OPERATIONAL, QUP_OUT_SVC_FLAG);
+	if (ret)
+		return ret;
+	writel(QUP_OUT_SVC_FLAG, qup->base + QUP_OPERATIONAL);
+
+	ret = qup_i2c_change_state(qup, QUP_PAUSE_STATE);
+	return ret;
+}
+
+static void qup_i2c_conf_mode_v2(struct qup_i2c_priv *qup)
+{
+	u32 io_mode = QUP_REPACK_EN;
+
+	writel(0, qup->base + QUP_MX_OUTPUT_CNT);
+	writel(0, qup->base + QUP_MX_INPUT_CNT);
+
+	writel(io_mode, qup->base + QUP_IO_MODE);
+}
+
+static int qup_i2c_xfer_v2(struct udevice *bus, struct i2c_msg msgs[], int num)
+{
+	struct qup_i2c_priv *qup = dev_get_priv(bus);
+	int ret, idx = 0;
+	u32 i2c_addr;
+
+	writel(1, qup->base + QUP_SW_RESET);
+	ret = qup_i2c_poll_state(qup, QUP_RESET_STATE);
+	if (ret)
+		goto out;
+
+	/* Configure QUP as I2C mini core */
+	writel(QUP_I2C_MINI_CORE | QUP_I2C_N_VAL_V2 | QUP_NO_INPUT,
+	       qup->base + QUP_CONFIG);
+	writel(QUP_V2_TAGS_EN, qup->base + QUP_I2C_MASTER_GEN);
+
+	if (qup_i2c_poll_state_i2c_master(qup)) {
+		ret = -EIO;
+		goto out;
+	}
+
+	qup_i2c_conf_mode_v2(qup);
+
+	for (idx = 0; idx < num; idx++) {
+		struct i2c_msg *m = &msgs[idx];
+
+		qup->config_run = !idx ? 0 : QUP_I2C_MX_CONFIG_DURING_RUN;
+		i2c_addr = i2c_8bit_addr_from_msg(m);
+
+		if (m->flags & I2C_M_RD)
+			ret = qup_i2c_blsp_read(qup, i2c_addr, idx == (num - 1),
+						m->buf, m->len);
+		else
+			ret = qup_i2c_blsp_write(qup, i2c_addr, idx == 0,
+						 idx == (num - 1), m->buf,
+						 m->len);
+		if (ret)
+			break;
+	}
+out:
+	qup_i2c_change_state(qup, QUP_RESET_STATE);
+	return ret;
+}
+
+static int qup_i2c_enable_clocks(struct udevice *dev, struct qup_i2c_priv *qup)
+{
+	int ret;
+
+	ret = clk_enable(&qup->core);
+	if (ret) {
+		dev_err(dev, "clk_enable failed %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_enable(&qup->iface);
+	if (ret) {
+		dev_err(dev, "clk_enable failed %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int qup_i2c_probe(struct udevice *dev)
+{
+	static const int blk_sizes[] = {4, 16, 32};
+	struct qup_i2c_priv *qup = dev_get_priv(dev);
+	u32 io_mode, hw_ver, size, size_idx;
+	int ret;
+
+	qup->base = (phys_addr_t)dev_read_addr_ptr(dev);
+	if (!qup->base)
+		return -EINVAL;
+
+	ret = clk_get_by_name(dev, "core", &qup->core);
+	if (ret) {
+		pr_err("clk_get_by_name(core) failed: %d\n", ret);
+		return ret;
+	}
+	ret = clk_get_by_name(dev, "iface", &qup->iface);
+	if (ret) {
+		pr_err("clk_get_by_name(iface) failed: %d\n", ret);
+		return ret;
+	}
+	qup_i2c_enable_clocks(dev, qup);
+
+	writel(1, qup->base + QUP_SW_RESET);
+	ret = qup_i2c_poll_state_valid(qup);
+	if (ret)
+		return ret;
+
+	hw_ver = readl(qup->base + QUP_HW_VERSION);
+	dev_dbg(dev, "Revision %x\n", hw_ver);
+
+	io_mode = readl(qup->base + QUP_IO_MODE);
+
+	/*
+	 * The block/fifo size w.r.t. 'actual data' is 1/2 due to 'tag'
+	 * associated with each byte written/received
+	 */
+	size_idx = QUP_OUTPUT_BLOCK_SIZE(io_mode);
+	if (size_idx >= ARRAY_SIZE(blk_sizes)) {
+		ret = -EIO;
+		return ret;
+	}
+	size = QUP_OUTPUT_FIFO_SIZE(io_mode);
+	qup->out_fifo_sz = blk_sizes[size_idx] * (2 << size);
+
+	size_idx = QUP_INPUT_BLOCK_SIZE(io_mode);
+	if (size_idx >= ARRAY_SIZE(blk_sizes)) {
+		ret = -EIO;
+		return ret;
+	}
+	size = QUP_INPUT_FIFO_SIZE(io_mode);
+	qup->in_fifo_sz = blk_sizes[size_idx] * (2 << size);
+
+	dev_dbg(dev, "IN:fifo:%d, OUT:fifo:%d\n", qup->in_fifo_sz,
+		qup->out_fifo_sz);
+
+	return 0;
+}
+
+static int qup_i2c_set_bus_speed(struct udevice *dev, unsigned int clk_freq)
+{
+	struct qup_i2c_priv *qup = dev_get_priv(dev);
+	unsigned int src_clk_freq;
+	int fs_div, hs_div;
+
+	/* We support frequencies up to FAST Mode Plus (1MHz) */
+	if (!clk_freq || clk_freq > I2C_SPEED_FAST_PLUS_RATE) {
+		dev_err(dev, "clock frequency not supported %d\n", clk_freq);
+		return -EINVAL;
+	}
+
+	src_clk_freq = clk_get_rate(&qup->iface);
+	if ((int)src_clk_freq < 0) {
+		src_clk_freq = DEFAULT_SRC_CLK;
+		dev_dbg(dev, "using default core freq %d\n", src_clk_freq);
+	}
+
+	dev_dbg(dev, "src_clk_freq %u\n", src_clk_freq);
+	dev_dbg(dev, "clk_freq     %u\n", clk_freq);
+
+	hs_div = 3;
+	if (clk_freq <= I2C_SPEED_STANDARD_RATE) {
+		fs_div = ((src_clk_freq / clk_freq) / 2) - 3;
+		qup->clk_ctl = (hs_div << 8) | (fs_div & 0xff);
+	} else {
+		/* 33%/66% duty cycle */
+		fs_div = ((src_clk_freq / clk_freq) - 6) * 2 / 3;
+		qup->clk_ctl = ((fs_div / 2) << 16) | (hs_div << 8) | (fs_div & 0xff);
+	}
+
+	dev_dbg(dev, "clk_ctl      %u\n", qup->clk_ctl);
+
+	return 0;
+}
+
+/* Probe to see if a chip is present. */
+static int qup_i2c_probe_chip(struct udevice *dev, uint chip_addr,
+			      uint chip_flags)
+{
+	struct qup_i2c_priv *qup = dev_get_priv(dev);
+	u32 hw_ver = readl(qup->base + QUP_HW_VERSION);
+
+	return hw_ver ? 0 : -1;
+}
+
+static const struct dm_i2c_ops qup_i2c_ops = {
+	.xfer		= qup_i2c_xfer_v2,
+	.probe_chip	= qup_i2c_probe_chip,
+	.set_bus_speed	= qup_i2c_set_bus_speed,
+};
+
+/*
+ * Currently this driver only supports v2.x of QUP I2C controller, hence
+ * functions above are named with a _v2 suffix. So when we have the
+ * v1.1.1 support added as per the Linux counterpart then it should be easy
+ * to add corresponding functions named with a _v1 suffix.
+ */
+static const struct udevice_id qup_i2c_ids[] = {
+	{ .compatible = "qcom,i2c-qup-v2.1.1" },
+	{ .compatible = "qcom,i2c-qup-v2.2.1" },
+	{}
+};
+
+U_BOOT_DRIVER(i2c_qup) = {
+	.name	= "i2c_qup",
+	.id	= UCLASS_I2C,
+	.of_match = qup_i2c_ids,
+	.probe	= qup_i2c_probe,
+	.priv_auto = sizeof(struct qup_i2c_priv),
+	.ops	= &qup_i2c_ops,
+};
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 1c534be0058..32360d94c05 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -46,6 +46,15 @@ config APPLE_SPI_KEYB
 	  laptops based on Apple SoCs. These keyboards use an
 	  Apple-specific HID-over-SPI protocol.
 
+config BUTTON_KEYBOARD
+	bool "Buttons as keyboard"
+	depends on BUTTON_GPIO
+	depends on DM_KEYBOARD
+	help
+	  Enable support for mapping buttons to keycode events. Use linux,code button driver
+	  dt node to define button-event mapping.
+	  For example, an arrows and enter may be implemented to navigate boot menu.
+
 config CROS_EC_KEYB
 	bool "Enable Chrome OS EC keyboard support"
 	depends on INPUT
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index ded76bddb22..14c0ea73254 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -6,6 +6,7 @@
 obj-$(CONFIG_$(SPL_TPL_)CROS_EC_KEYB) += cros_ec_keyb.o
 obj-$(CONFIG_$(SPL_TPL_)OF_CONTROL) += key_matrix.o
 obj-$(CONFIG_$(SPL_TPL_)DM_KEYBOARD) += input.o keyboard-uclass.o
+obj-$(CONFIG_BUTTON_KEYBOARD) += button_kbd.o
 
 ifndef CONFIG_SPL_BUILD
 
diff --git a/drivers/input/button_kbd.c b/drivers/input/button_kbd.c
new file mode 100644
index 00000000000..99e65f12f01
--- /dev/null
+++ b/drivers/input/button_kbd.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2023 Dzmitry Sankouski <[email protected]>
+ */
+
+#include <stdlib.h>
+#include <common.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <input.h>
+#include <keyboard.h>
+#include <button.h>
+#include <dm/device-internal.h>
+#include <log.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+
+/**
+ * struct button_kbd_priv - driver private data
+ *
+ * @input: input configuration
+ * @button_size: number of buttons found
+ * @old_state: a pointer to old button states array. Used to determine button state change.
+ */
+struct button_kbd_priv {
+	struct input_config *input;
+	u32 button_size;
+	u32 *old_state;
+};
+
+static int button_kbd_start(struct udevice *dev)
+{
+	struct button_kbd_priv *priv = dev_get_priv(dev);
+	int i = 0;
+	struct udevice *button_gpio_devp;
+
+	uclass_foreach_dev_probe(UCLASS_BUTTON, button_gpio_devp) {
+		struct button_uc_plat *uc_plat = dev_get_uclass_plat(button_gpio_devp);
+		/* Ignore the top-level button node */
+		if (!uc_plat->label)
+			continue;
+		debug("Found button %s #%d - %s, probing...\n",
+		      uc_plat->label, i, button_gpio_devp->name);
+		i++;
+	}
+
+	priv->button_size = i;
+	priv->old_state = calloc(i, sizeof(int));
+
+	return 0;
+}
+
+int button_read_keys(struct input_config *input)
+{
+	struct button_kbd_priv *priv = dev_get_priv(input->dev);
+	struct udevice *button_gpio_devp;
+	struct uclass *uc;
+	int i = 0;
+	u32 code, state, state_changed = 0;
+
+	uclass_id_foreach_dev(UCLASS_BUTTON, button_gpio_devp, uc) {
+		struct button_uc_plat *uc_plat = dev_get_uclass_plat(button_gpio_devp);
+		/* Ignore the top-level button node */
+		if (!uc_plat->label)
+			continue;
+		code = button_get_code(button_gpio_devp);
+		if (!code)
+			continue;
+
+		state = button_get_state(button_gpio_devp);
+		state_changed = state != priv->old_state[i];
+
+		if (state_changed) {
+			debug("%s: %d\n", uc_plat->label, code);
+			priv->old_state[i] = state;
+			input_add_keycode(input, code, state);
+		}
+		i++;
+	}
+	return 0;
+}
+
+static const struct keyboard_ops button_kbd_ops = {
+	.start	= button_kbd_start,
+};
+
+static int button_kbd_probe(struct udevice *dev)
+{
+	struct button_kbd_priv *priv = dev_get_priv(dev);
+	struct keyboard_priv *uc_priv = dev_get_uclass_priv(dev);
+	struct stdio_dev *sdev = &uc_priv->sdev;
+	struct input_config *input = &uc_priv->input;
+	int ret = 0;
+
+	input_init(input, false);
+	input_add_tables(input, false);
+
+	/* Register the device. */
+	priv->input = input;
+	input->dev = dev;
+	input->read_keys = button_read_keys;
+	strcpy(sdev->name, "button-kbd");
+	ret = input_stdio_register(sdev);
+	if (ret) {
+		debug("%s: input_stdio_register() failed\n", __func__);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct udevice_id button_kbd_ids[] = {
+	{ .compatible = "button-kbd" },
+	{ }
+};
+
+U_BOOT_DRIVER(button_kbd) = {
+	.name		= "button_kbd",
+	.id		= UCLASS_KEYBOARD,
+	.of_match	= button_kbd_ids,
+	.ops		= &button_kbd_ops,
+	.priv_auto	= sizeof(struct button_kbd_priv),
+	.probe		= button_kbd_probe,
+};
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 62d2c03849a..ceadee98a1e 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -242,6 +242,13 @@ config DWC_ETH_QOS_TEGRA186
 	  The Synopsys Designware Ethernet QOS IP block with specific
 	  configuration used in NVIDIA's Tegra186 chip.
 
+config DWC_ETH_QOS_QCOM
+	bool "Synopsys DWC Ethernet QOS device support for Qcom SoCs"
+	depends on DWC_ETH_QOS
+	help
+	  The Synopsys Designware Ethernet QOS IP block with specific
+	  configuration used in Qcom QCS404 SoC.
+
 config E1000
 	bool "Intel PRO/1000 Gigabit Ethernet support"
 	depends on PCI
@@ -406,6 +413,7 @@ config FSL_FM_10GEC_REGULAR_NOTATION
 
 config FTMAC100
 	bool "Ftmac100 Ethernet Support"
+	select MII
 	help
 	  This MAC is present in Andestech SoCs.
 
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 90fbb02ab02..75daa5e694c 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_DRIVER_DM9000) += dm9000x.o
 obj-$(CONFIG_DSA_SANDBOX) += dsa_sandbox.o
 obj-$(CONFIG_DWC_ETH_QOS) += dwc_eth_qos.o
 obj-$(CONFIG_DWC_ETH_QOS_IMX) += dwc_eth_qos_imx.o
+obj-$(CONFIG_DWC_ETH_QOS_QCOM) += dwc_eth_qos_qcom.o
 obj-$(CONFIG_E1000) += e1000.o
 obj-$(CONFIG_E1000_SPI) += e1000_spi.o
 obj-$(CONFIG_EEPRO100) += eepro100.o
diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
index afc47b56ff5..112deb546de 100644
--- a/drivers/net/dwc_eth_qos.c
+++ b/drivers/net/dwc_eth_qos.c
@@ -774,10 +774,13 @@ static int eqos_start(struct udevice *dev)
 		pr_err("eqos_calibrate_pads() failed: %d", ret);
 		goto err_stop_resets;
 	}
-	rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
 
-	val = (rate / 1000000) - 1;
-	writel(val, &eqos->mac_regs->us_tic_counter);
+	if (eqos->config->ops->eqos_get_tick_clk_rate) {
+		rate = eqos->config->ops->eqos_get_tick_clk_rate(dev);
+
+		val = (rate / 1000000) - 1;
+		writel(val, &eqos->mac_regs->us_tic_counter);
+	}
 
 	/*
 	 * if PHY was already connected and configured,
@@ -849,12 +852,19 @@ static int eqos_start(struct udevice *dev)
 	rx_fifo_sz = (val >> EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_SHIFT) &
 		EQOS_MAC_HW_FEATURE1_RXFIFOSIZE_MASK;
 
-	/*
-	 * r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting.
-	 * r/tqs is encoded as (n / 256) - 1.
-	 */
-	tqs = (128 << tx_fifo_sz) / 256 - 1;
-	rqs = (128 << rx_fifo_sz) / 256 - 1;
+	/* r/tx_fifo_sz is encoded as log2(n / 128). Undo that by shifting */
+	tx_fifo_sz = 128 << tx_fifo_sz;
+	rx_fifo_sz = 128 << rx_fifo_sz;
+
+	/* Allow platform to override TX/RX fifo size */
+	if (eqos->tx_fifo_sz)
+		tx_fifo_sz = eqos->tx_fifo_sz;
+	if (eqos->rx_fifo_sz)
+		rx_fifo_sz = eqos->rx_fifo_sz;
+
+	/* r/tqs is encoded as (n / 256) - 1 */
+	tqs = tx_fifo_sz / 256 - 1;
+	rqs = rx_fifo_sz / 256 - 1;
 
 	clrsetbits_le32(&eqos->mtl_regs->txq0_operation_mode,
 			EQOS_MTL_TXQ0_OPERATION_MODE_TQS_MASK <<
@@ -1702,6 +1712,13 @@ static const struct udevice_id eqos_ids[] = {
 	},
 #endif
 
+#if IS_ENABLED(CONFIG_DWC_ETH_QOS_QCOM)
+	{
+		.compatible = "qcom,qcs404-ethqos",
+		.data = (ulong)&eqos_qcom_config
+	},
+#endif
+
 	{ }
 };
 
diff --git a/drivers/net/dwc_eth_qos.h b/drivers/net/dwc_eth_qos.h
index 8fccd6f0572..fddbe9336c9 100644
--- a/drivers/net/dwc_eth_qos.h
+++ b/drivers/net/dwc_eth_qos.h
@@ -253,6 +253,7 @@ struct eqos_priv {
 	struct eqos_mtl_regs *mtl_regs;
 	struct eqos_dma_regs *dma_regs;
 	struct eqos_tegra186_regs *tegra186_regs;
+	void *eqos_qcom_rgmii_regs;
 	struct reset_ctl reset_ctl;
 	struct gpio_desc phy_reset_gpio;
 	struct clk clk_master_bus;
@@ -276,6 +277,8 @@ struct eqos_priv {
 	bool started;
 	bool reg_access_ok;
 	bool clk_ck_enabled;
+	unsigned int tx_fifo_sz, rx_fifo_sz;
+	u32 reset_delays[3];
 };
 
 void eqos_inval_desc_generic(void *desc);
@@ -285,3 +288,4 @@ void eqos_flush_buffer_generic(void *buf, size_t size);
 int eqos_null_ops(struct udevice *dev);
 
 extern struct eqos_config eqos_imx_config;
+extern struct eqos_config eqos_qcom_config;
diff --git a/drivers/net/dwc_eth_qos_qcom.c b/drivers/net/dwc_eth_qos_qcom.c
new file mode 100644
index 00000000000..df83f1c5f9e
--- /dev/null
+++ b/drivers/net/dwc_eth_qos_qcom.c
@@ -0,0 +1,612 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2022-2023 Sumit Garg <[email protected]>
+ *
+ * Qcom DWMAC specific glue layer
+ */
+
+#include <common.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <clk.h>
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <phy.h>
+#include <reset.h>
+#include <syscon.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+
+#include "dwc_eth_qos.h"
+
+/* RGMII_IO_MACRO_CONFIG fields */
+#define RGMII_CONFIG_FUNC_CLK_EN		BIT(30)
+#define RGMII_CONFIG_POS_NEG_DATA_SEL		BIT(23)
+#define RGMII_CONFIG_GPIO_CFG_RX_INT		GENMASK(21, 20)
+#define RGMII_CONFIG_GPIO_CFG_TX_INT		GENMASK(19, 17)
+#define RGMII_CONFIG_MAX_SPD_PRG_9		GENMASK(16, 8)
+#define RGMII_CONFIG_MAX_SPD_PRG_2		GENMASK(7, 6)
+#define RGMII_CONFIG_INTF_SEL			GENMASK(5, 4)
+#define RGMII_CONFIG_BYPASS_TX_ID_EN		BIT(3)
+#define RGMII_CONFIG_LOOPBACK_EN		BIT(2)
+#define RGMII_CONFIG_PROG_SWAP			BIT(1)
+#define RGMII_CONFIG_DDR_MODE			BIT(0)
+
+/* SDCC_HC_REG_DLL_CONFIG fields */
+#define SDCC_DLL_CONFIG_DLL_RST			BIT(30)
+#define SDCC_DLL_CONFIG_PDN			BIT(29)
+#define SDCC_DLL_CONFIG_MCLK_FREQ		GENMASK(26, 24)
+#define SDCC_DLL_CONFIG_CDR_SELEXT		GENMASK(23, 20)
+#define SDCC_DLL_CONFIG_CDR_EXT_EN		BIT(19)
+#define SDCC_DLL_CONFIG_CK_OUT_EN		BIT(18)
+#define SDCC_DLL_CONFIG_CDR_EN			BIT(17)
+#define SDCC_DLL_CONFIG_DLL_EN			BIT(16)
+#define SDCC_DLL_MCLK_GATING_EN			BIT(5)
+#define SDCC_DLL_CDR_FINE_PHASE			GENMASK(3, 2)
+
+/* SDCC_HC_REG_DDR_CONFIG fields */
+#define SDCC_DDR_CONFIG_PRG_DLY_EN		BIT(31)
+#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY	GENMASK(26, 21)
+#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE	GENMASK(29, 27)
+#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN	BIT(30)
+#define SDCC_DDR_CONFIG_PRG_RCLK_DLY		GENMASK(8, 0)
+
+/* SDCC_HC_REG_DLL_CONFIG2 fields */
+#define SDCC_DLL_CONFIG2_DLL_CLOCK_DIS		BIT(21)
+#define SDCC_DLL_CONFIG2_MCLK_FREQ_CALC		GENMASK(17, 10)
+#define SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SEL	GENMASK(3, 2)
+#define SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW	BIT(1)
+#define SDCC_DLL_CONFIG2_DDR_CAL_EN		BIT(0)
+
+/* SDC4_STATUS bits */
+#define SDC4_STATUS_DLL_LOCK			BIT(7)
+
+/* RGMII_IO_MACRO_CONFIG2 fields */
+#define RGMII_CONFIG2_RSVD_CONFIG15		GENMASK(31, 17)
+#define RGMII_CONFIG2_RGMII_CLK_SEL_CFG		BIT(16)
+#define RGMII_CONFIG2_TX_TO_RX_LOOPBACK_EN	BIT(13)
+#define RGMII_CONFIG2_CLK_DIVIDE_SEL		BIT(12)
+#define RGMII_CONFIG2_RX_PROG_SWAP		BIT(7)
+#define RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL	BIT(6)
+#define RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN	BIT(5)
+
+struct dwmac_rgmii_regs {
+	u32 io_macro_config;		/* 0x00 */
+	u32 sdcc_hc_dll_config;		/* 0x04 */
+	u32 reserved_1;			/* 0x08 */
+	u32 sdcc_hc_ddr_config;		/* 0x0c */
+	u32 sdcc_hc_dll_config2;	/* 0x10 */
+	u32 sdc4_status;		/* 0x14 */
+	u32 sdcc_usr_ctl;		/* 0x18 */
+	u32 io_macro_config2;		/* 0x1c */
+	u32 io_macro_debug1;		/* 0x20 */
+	u32 reserved_2;			/* 0x24 */
+	u32 emac_sys_low_power_dbg;	/* 0x28 */
+	u32 reserved_3[53];		/* upto 0x100 */
+};
+
+static struct dwmac_rgmii_regs emac_v2_3_0_por = {
+	.io_macro_config = 0x00C01343,
+	.sdcc_hc_dll_config = 0x2004642C,
+	.sdcc_hc_ddr_config = 0x00000000,
+	.sdcc_hc_dll_config2 = 0x00200000,
+	.sdcc_usr_ctl = 0x00010800,
+	.io_macro_config2 = 0x00002060
+};
+
+static void ethqos_set_func_clk_en(struct dwmac_rgmii_regs *regs)
+{
+	setbits_le32(&regs->io_macro_config, RGMII_CONFIG_FUNC_CLK_EN);
+}
+
+static int ethqos_dll_configure(struct udevice *dev,
+				struct dwmac_rgmii_regs *regs)
+{
+	unsigned int val;
+	int retry = 1000;
+
+	/* Set CDR_EN */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_CDR_EN);
+
+	/* Set CDR_EXT_EN */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_CDR_EXT_EN);
+
+	/* Clear CK_OUT_EN */
+	clrbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_CK_OUT_EN);
+
+	/* Set DLL_EN */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_DLL_EN);
+
+	clrbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_MCLK_GATING_EN);
+
+	clrbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CDR_FINE_PHASE);
+
+	/* Wait for CK_OUT_EN clear */
+	do {
+		val = readl(&regs->sdcc_hc_dll_config);
+		val &= SDCC_DLL_CONFIG_CK_OUT_EN;
+		if (!val)
+			break;
+		mdelay(1);
+		retry--;
+	} while (retry > 0);
+	if (!retry)
+		dev_err(dev, "Clear CK_OUT_EN timedout\n");
+
+	/* Set CK_OUT_EN */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_CK_OUT_EN);
+
+	/* Wait for CK_OUT_EN set */
+	retry = 1000;
+	do {
+		val = readl(&regs->sdcc_hc_dll_config);
+		val &= SDCC_DLL_CONFIG_CK_OUT_EN;
+		if (val)
+			break;
+		mdelay(1);
+		retry--;
+	} while (retry > 0);
+	if (!retry)
+		dev_err(dev, "Set CK_OUT_EN timedout\n");
+
+	/* Set DDR_CAL_EN */
+	setbits_le32(&regs->sdcc_hc_dll_config2, SDCC_DLL_CONFIG2_DDR_CAL_EN);
+
+	clrbits_le32(&regs->sdcc_hc_dll_config2,
+		     SDCC_DLL_CONFIG2_DLL_CLOCK_DIS);
+
+	clrsetbits_le32(&regs->sdcc_hc_dll_config2,
+			SDCC_DLL_CONFIG2_MCLK_FREQ_CALC, 0x1A << 10);
+
+	clrsetbits_le32(&regs->sdcc_hc_dll_config2,
+			SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SEL, BIT(2));
+
+	setbits_le32(&regs->sdcc_hc_dll_config2,
+		     SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW);
+
+	return 0;
+}
+
+static int ethqos_rgmii_macro_init(struct udevice *dev,
+				   struct dwmac_rgmii_regs *regs,
+				   unsigned long speed)
+{
+	/* Disable loopback mode */
+	clrbits_le32(&regs->io_macro_config2,
+		     RGMII_CONFIG2_TX_TO_RX_LOOPBACK_EN);
+
+	/* Select RGMII, write 0 to interface select */
+	clrbits_le32(&regs->io_macro_config, RGMII_CONFIG_INTF_SEL);
+
+	switch (speed) {
+	case SPEED_1000:
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_DDR_MODE);
+		clrbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_BYPASS_TX_ID_EN);
+		setbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_POS_NEG_DATA_SEL);
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_PROG_SWAP);
+
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL);
+		setbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RSVD_CONFIG15);
+		setbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RX_PROG_SWAP);
+
+		/* Set PRG_RCLK_DLY to 57 for 1.8 ns delay */
+		clrsetbits_le32(&regs->sdcc_hc_ddr_config,
+				SDCC_DDR_CONFIG_PRG_RCLK_DLY, 57);
+		setbits_le32(&regs->sdcc_hc_ddr_config, SDCC_DDR_CONFIG_PRG_DLY_EN);
+
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_LOOPBACK_EN);
+		break;
+
+	case SPEED_100:
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_DDR_MODE);
+		setbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_BYPASS_TX_ID_EN);
+		clrbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_POS_NEG_DATA_SEL);
+		clrbits_le32(&regs->io_macro_config, RGMII_CONFIG_PROG_SWAP);
+		clrsetbits_le32(&regs->io_macro_config,
+				RGMII_CONFIG_MAX_SPD_PRG_2, BIT(6));
+
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL);
+		setbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RSVD_CONFIG15);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RX_PROG_SWAP);
+
+		/* Write 0x5 to PRG_RCLK_DLY_CODE */
+		clrsetbits_le32(&regs->sdcc_hc_ddr_config,
+				SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE,
+				(BIT(29) | BIT(27)));
+		setbits_le32(&regs->sdcc_hc_ddr_config,
+			     SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY);
+		setbits_le32(&regs->sdcc_hc_ddr_config,
+			     SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN);
+
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_LOOPBACK_EN);
+		break;
+
+	case SPEED_10:
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_DDR_MODE);
+		setbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_BYPASS_TX_ID_EN);
+		clrbits_le32(&regs->io_macro_config,
+			     RGMII_CONFIG_POS_NEG_DATA_SEL);
+		clrbits_le32(&regs->io_macro_config, RGMII_CONFIG_PROG_SWAP);
+		clrsetbits_le32(&regs->io_macro_config,
+				RGMII_CONFIG_MAX_SPD_PRG_9,
+				BIT(12) | GENMASK(9, 8));
+
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RSVD_CONFIG15);
+		clrbits_le32(&regs->io_macro_config2,
+			     RGMII_CONFIG2_RX_PROG_SWAP);
+
+		/* Write 0x5 to PRG_RCLK_DLY_CODE */
+		clrsetbits_le32(&regs->sdcc_hc_ddr_config,
+				SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE,
+				(BIT(29) | BIT(27)));
+		setbits_le32(&regs->sdcc_hc_ddr_config,
+			     SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY);
+		setbits_le32(&regs->sdcc_hc_ddr_config,
+			     SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN);
+
+		setbits_le32(&regs->io_macro_config, RGMII_CONFIG_LOOPBACK_EN);
+		break;
+
+	default:
+		dev_err(dev, "Invalid speed %ld\n", speed);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ethqos_configure(struct udevice *dev,
+			    struct dwmac_rgmii_regs *regs,
+			    unsigned long speed)
+{
+	unsigned int retry = 1000;
+
+	/* Reset to POR values and enable clk */
+	writel(emac_v2_3_0_por.io_macro_config, &regs->io_macro_config);
+	writel(emac_v2_3_0_por.sdcc_hc_dll_config, &regs->sdcc_hc_dll_config);
+	writel(emac_v2_3_0_por.sdcc_hc_ddr_config, &regs->sdcc_hc_ddr_config);
+	writel(emac_v2_3_0_por.sdcc_hc_dll_config2, &regs->sdcc_hc_dll_config2);
+	writel(emac_v2_3_0_por.sdcc_usr_ctl, &regs->sdcc_usr_ctl);
+	writel(emac_v2_3_0_por.io_macro_config2, &regs->io_macro_config2);
+
+	ethqos_set_func_clk_en(regs);
+
+	/* Initialize the DLL first */
+
+	/* Set DLL_RST */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_DLL_RST);
+
+	/* Set PDN */
+	setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_PDN);
+
+	/* Clear DLL_RST */
+	clrbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_DLL_RST);
+
+	/* Clear PDN */
+	clrbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_PDN);
+
+	if (speed == SPEED_1000) {
+		/* Set DLL_EN */
+		setbits_le32(&regs->sdcc_hc_dll_config, SDCC_DLL_CONFIG_DLL_EN);
+
+		/* Set CK_OUT_EN */
+		setbits_le32(&regs->sdcc_hc_dll_config,
+			     SDCC_DLL_CONFIG_CK_OUT_EN);
+
+		/* Set USR_CTL bit 26 with mask of 3 bits */
+		clrsetbits_le32(&regs->sdcc_usr_ctl, GENMASK(26, 24), BIT(26));
+
+		/* wait for DLL LOCK */
+		do {
+			mdelay(1);
+			if (readl(&regs->sdc4_status) & SDC4_STATUS_DLL_LOCK)
+				break;
+			retry--;
+		} while (retry > 0);
+		if (!retry)
+			dev_err(dev, "Timeout while waiting for DLL lock\n");
+
+		ethqos_dll_configure(dev, regs);
+	}
+
+	ethqos_rgmii_macro_init(dev, regs, speed);
+
+	return 0;
+}
+
+static void ethqos_rgmii_dump(struct udevice *dev,
+			      struct dwmac_rgmii_regs *regs)
+{
+	dev_dbg(dev, "Rgmii register dump\n");
+	dev_dbg(dev, "RGMII_IO_MACRO_CONFIG: %08x\n",
+		readl(&regs->io_macro_config));
+	dev_dbg(dev, "SDCC_HC_REG_DLL_CONFIG: %08x\n",
+		readl(&regs->sdcc_hc_dll_config));
+	dev_dbg(dev, "SDCC_HC_REG_DDR_CONFIG: %08x\n",
+		readl(&regs->sdcc_hc_ddr_config));
+	dev_dbg(dev, "SDCC_HC_REG_DLL_CONFIG2: %08x\n",
+		readl(&regs->sdcc_hc_dll_config2));
+	dev_dbg(dev, "SDC4_STATUS: %08x\n",
+		readl(&regs->sdc4_status));
+	dev_dbg(dev, "SDCC_USR_CTL: %08x\n",
+		readl(&regs->sdcc_usr_ctl));
+	dev_dbg(dev, "RGMII_IO_MACRO_CONFIG2: %08x\n",
+		readl(&regs->io_macro_config2));
+	dev_dbg(dev, "RGMII_IO_MACRO_DEBUG1: %08x\n",
+		readl(&regs->io_macro_debug1));
+	dev_dbg(dev, "EMAC_SYSTEM_LOW_POWER_DEBUG: %08x\n",
+		readl(&regs->emac_sys_low_power_dbg));
+}
+
+static int qcom_eqos_rgmii_set_speed(struct udevice *dev,
+				     void *rgmii_regs,
+				     unsigned long speed)
+{
+	int ret;
+
+	ethqos_rgmii_dump(dev, rgmii_regs);
+
+	ret = ethqos_configure(dev, rgmii_regs, speed);
+	if (ret)
+		return ret;
+
+	ethqos_rgmii_dump(dev, rgmii_regs);
+
+	return 0;
+}
+
+static int qcom_eqos_rgmii_reset(struct udevice *dev, void *rgmii_regs)
+{
+	ethqos_set_func_clk_en(rgmii_regs);
+
+	return 0;
+}
+
+static int eqos_start_clks_qcom(struct udevice *dev)
+{
+	if (IS_ENABLED(CONFIG_CLK)) {
+		struct clk_bulk clocks;
+		int ret;
+
+		ret = clk_get_bulk(dev, &clocks);
+		if (ret)
+			return ret;
+
+		ret = clk_enable_bulk(&clocks);
+		if (ret)
+			return ret;
+	}
+
+	debug("%s: OK\n", __func__);
+	return 0;
+}
+
+static int eqos_stop_clks_qcom(struct udevice *dev)
+{
+	if (IS_ENABLED(CONFIG_CLK)) {
+		struct clk_bulk clocks;
+		int ret;
+
+		ret = clk_get_bulk(dev, &clocks);
+		if (ret)
+			return ret;
+
+		ret = clk_disable_bulk(&clocks);
+		if (ret)
+			return ret;
+	}
+
+	debug("%s: OK\n", __func__);
+	return 0;
+}
+
+static int eqos_start_resets_qcom(struct udevice *dev)
+{
+	struct eqos_priv *eqos = dev_get_priv(dev);
+	int ret;
+
+	debug("%s(dev=%p):\n", __func__, dev);
+
+	if (!eqos->phy) {
+		ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
+		if (ret < 0) {
+			pr_err("dm_gpio_set_value(phy_reset, assert) failed: %d", ret);
+			return ret;
+		}
+
+		udelay(eqos->reset_delays[0]);
+
+		ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
+		if (ret < 0) {
+			pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
+			return ret;
+		}
+
+		udelay(eqos->reset_delays[1]);
+
+		ret = dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
+		if (ret < 0) {
+			pr_err("dm_gpio_set_value(phy_reset, deassert) failed: %d", ret);
+			return ret;
+		}
+
+		udelay(eqos->reset_delays[2]);
+	}
+
+	ret = reset_deassert(&eqos->reset_ctl);
+	if (ret < 0) {
+		pr_err("reset_deassert() failed: %d", ret);
+		return ret;
+	}
+
+	ret = qcom_eqos_rgmii_reset(dev, eqos->eqos_qcom_rgmii_regs);
+	if (ret < 0) {
+		pr_err("qcom rgmii_reset failed: %d", ret);
+		return ret;
+	}
+
+	debug("%s: OK\n", __func__);
+	return 0;
+}
+
+/* Clock rates */
+#define RGMII_1000_NOM_CLK_FREQ			(250 * 1000 * 1000UL)
+#define RGMII_ID_MODE_100_LOW_SVS_CLK_FREQ	 (50 * 1000 * 1000UL)
+#define RGMII_ID_MODE_10_LOW_SVS_CLK_FREQ	  (5 * 1000 * 1000UL)
+
+static int eqos_set_tx_clk_speed_qcom(struct udevice *dev)
+{
+	struct eqos_priv *eqos = dev_get_priv(dev);
+	ulong rate;
+	int ret;
+
+	debug("%s(dev=%p):\n", __func__, dev);
+
+	switch (eqos->phy->speed) {
+	case SPEED_1000:
+		rate = RGMII_1000_NOM_CLK_FREQ;
+		break;
+	case SPEED_100:
+		rate = RGMII_ID_MODE_100_LOW_SVS_CLK_FREQ;
+		break;
+	case SPEED_10:
+		rate = RGMII_ID_MODE_10_LOW_SVS_CLK_FREQ;
+		break;
+	default:
+		pr_err("invalid speed %d", eqos->phy->speed);
+		return -EINVAL;
+	}
+
+	ret = clk_set_rate(&eqos->clk_tx, rate);
+	if (ret < 0) {
+		pr_err("clk_set_rate(tx_clk, %lu) failed: %d", rate, ret);
+		return ret;
+	}
+
+	ret = qcom_eqos_rgmii_set_speed(dev, eqos->eqos_qcom_rgmii_regs,
+					eqos->phy->speed);
+	if (ret < 0) {
+		pr_err("qcom set_speed: %d, failed: %d", eqos->phy->speed, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int eqos_probe_resources_qcom(struct udevice *dev)
+{
+	struct eqos_priv *eqos = dev_get_priv(dev);
+	phy_interface_t interface;
+	int reset_flags = GPIOD_IS_OUT;
+	int ret;
+
+	debug("%s(dev=%p):\n", __func__, dev);
+
+	interface = eqos->config->interface(dev);
+
+	if (interface == PHY_INTERFACE_MODE_NA) {
+		pr_err("Invalid PHY interface\n");
+		return -EINVAL;
+	}
+
+	eqos->max_speed = dev_read_u32_default(dev, "max-speed", 0);
+
+	eqos->tx_fifo_sz = dev_read_u32_default(dev, "tx-fifo-depth", 0);
+	eqos->rx_fifo_sz = dev_read_u32_default(dev, "rx-fifo-depth", 0);
+
+	ret = reset_get_by_name(dev, "emac", &eqos->reset_ctl);
+	if (ret) {
+		pr_err("reset_get_by_name(rst) failed: %d", ret);
+		return ret;
+	}
+
+	if (dev_read_bool(dev, "snps,reset-active-low"))
+		reset_flags |= GPIOD_ACTIVE_LOW;
+
+	ret = gpio_request_by_name(dev, "snps,reset-gpio", 0,
+				   &eqos->phy_reset_gpio, reset_flags);
+	if (ret == 0) {
+		ret = dev_read_u32_array(dev, "snps,reset-delays-us",
+					 eqos->reset_delays, 3);
+	} else if (ret == -ENOENT) {
+		ret = 0;
+	}
+
+	eqos->eqos_qcom_rgmii_regs = (void *)dev_read_addr_name(dev, "rgmii");
+	if ((fdt_addr_t)eqos->eqos_qcom_rgmii_regs == FDT_ADDR_T_NONE) {
+		pr_err("Invalid RGMII address\n");
+		return -EINVAL;
+	}
+
+	ret = clk_get_by_name(dev, "rgmii", &eqos->clk_tx);
+	if (ret) {
+		pr_err("clk_get_by_name(tx) failed: %d", ret);
+		return -EINVAL;
+	}
+
+	debug("%s: OK\n", __func__);
+	return 0;
+}
+
+static int eqos_remove_resources_qcom(struct udevice *dev)
+{
+	struct eqos_priv *eqos = dev_get_priv(dev);
+
+	debug("%s(dev=%p):\n", __func__, dev);
+
+	clk_free(&eqos->clk_tx);
+	dm_gpio_free(dev, &eqos->phy_reset_gpio);
+	reset_free(&eqos->reset_ctl);
+
+	debug("%s: OK\n", __func__);
+	return 0;
+}
+
+static struct eqos_ops eqos_qcom_ops = {
+	.eqos_inval_desc = eqos_inval_desc_generic,
+	.eqos_flush_desc = eqos_flush_desc_generic,
+	.eqos_inval_buffer = eqos_inval_buffer_generic,
+	.eqos_flush_buffer = eqos_flush_buffer_generic,
+	.eqos_probe_resources = eqos_probe_resources_qcom,
+	.eqos_remove_resources = eqos_remove_resources_qcom,
+	.eqos_stop_resets = eqos_null_ops,
+	.eqos_start_resets = eqos_start_resets_qcom,
+	.eqos_stop_clks = eqos_stop_clks_qcom,
+	.eqos_start_clks = eqos_start_clks_qcom,
+	.eqos_calibrate_pads = eqos_null_ops,
+	.eqos_disable_calibration = eqos_null_ops,
+	.eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_qcom,
+	.eqos_get_enetaddr = eqos_null_ops,
+};
+
+struct eqos_config __maybe_unused eqos_qcom_config = {
+	.reg_access_always_ok = false,
+	.mdio_wait = 10,
+	.swr_wait = 50,
+	.config_mac = EQOS_MAC_RXQ_CTRL0_RXQ0EN_ENABLED_DCB,
+	.config_mac_mdio = EQOS_MAC_MDIO_ADDRESS_CR_250_300,
+	.axi_bus_width = EQOS_AXI_WIDTH_64,
+	.interface = dev_read_phy_mode,
+	.ops = &eqos_qcom_ops
+};
diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c
index f710c271c64..fae3adc3de3 100644
--- a/drivers/net/ftmac100.c
+++ b/drivers/net/ftmac100.c
@@ -12,9 +12,13 @@
 #include <env.h>
 #include <malloc.h>
 #include <net.h>
+#include <phy.h>
+#include <miiphy.h>
+#include <dm/device_compat.h>
 #include <asm/global_data.h>
 #include <linux/delay.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 
 #include "ftmac100.h"
 #include <dm.h>
@@ -23,12 +27,16 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define ETH_ZLEN	60
 
+/* Timeout for a mdio read/write operation */
+#define FTMAC100_MDIO_TIMEOUT_USEC     10000
+
 struct ftmac100_data {
 	struct ftmac100_txdes txdes[1];
 	struct ftmac100_rxdes rxdes[PKTBUFSRX];
 	int rx_index;
 	const char *name;
-	phys_addr_t iobase;
+	struct ftmac100 *ftmac100;
+	struct mii_dev *bus;
 };
 
 /*
@@ -36,7 +44,7 @@ struct ftmac100_data {
  */
 static void ftmac100_reset(struct ftmac100_data *priv)
 {
-	struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
 
 	debug ("%s()\n", __func__);
 
@@ -57,7 +65,7 @@ static void ftmac100_reset(struct ftmac100_data *priv)
 static void ftmac100_set_mac(struct ftmac100_data *priv ,
 	const unsigned char *mac)
 {
-	struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
 	unsigned int maddr = mac[0] << 8 | mac[1];
 	unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5];
 
@@ -72,7 +80,7 @@ static void ftmac100_set_mac(struct ftmac100_data *priv ,
  */
 static void _ftmac100_halt(struct ftmac100_data *priv)
 {
-	struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
 	debug ("%s()\n", __func__);
 	writel (0, &ftmac100->maccr);
 }
@@ -82,7 +90,7 @@ static void _ftmac100_halt(struct ftmac100_data *priv)
  */
 static int _ftmac100_init(struct ftmac100_data *priv, unsigned char enetaddr[6])
 {
-	struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
 	struct ftmac100_txdes *txdes = priv->txdes;
 	struct ftmac100_rxdes *rxdes = priv->rxdes;
 	unsigned int maccr;
@@ -187,7 +195,7 @@ static int __ftmac100_recv(struct ftmac100_data *priv)
  */
 static int _ftmac100_send(struct ftmac100_data *priv, void *packet, int length)
 {
-	struct ftmac100 *ftmac100 = (struct ftmac100 *)(uintptr_t)priv->iobase;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
 	struct ftmac100_txdes *curr_des = priv->txdes;
 	ulong start;
 
@@ -314,7 +322,7 @@ static int ftmac100_of_to_plat(struct udevice *dev)
 	struct eth_pdata *pdata = dev_get_plat(dev);
 	const char *mac;
 	pdata->iobase = dev_read_addr(dev);
-	priv->iobase = pdata->iobase;
+	priv->ftmac100 = phys_to_virt(pdata->iobase);
 	mac = dtbmacaddr(0);
 	if (mac)
 		memcpy(pdata->enetaddr , mac , 6);
@@ -322,10 +330,104 @@ static int ftmac100_of_to_plat(struct udevice *dev)
 	return 0;
 }
 
+/*
+ * struct mii_bus functions
+ */
+static int ftmac100_mdio_read(struct mii_dev *bus, int addr, int devad,
+			      int reg)
+{
+	struct ftmac100_data *priv = bus->priv;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
+	int phycr = FTMAC100_PHYCR_PHYAD(addr) |
+		    FTMAC100_PHYCR_REGAD(reg) |
+		    FTMAC100_PHYCR_MIIRD;
+	int ret;
+
+	writel(phycr, &ftmac100->phycr);
+
+	ret = readl_poll_timeout(&ftmac100->phycr, phycr,
+				 !(phycr & FTMAC100_PHYCR_MIIRD),
+				 FTMAC100_MDIO_TIMEOUT_USEC);
+	if (ret)
+		pr_err("%s: mdio read failed (addr=0x%x reg=0x%x)\n",
+		       bus->name, addr, reg);
+	else
+		ret = phycr & FTMAC100_PHYCR_MIIRDATA;
+
+	return ret;
+}
+
+static int ftmac100_mdio_write(struct mii_dev *bus, int addr, int devad,
+			       int reg, u16 value)
+{
+	struct ftmac100_data *priv = bus->priv;
+	struct ftmac100 *ftmac100 = priv->ftmac100;
+	int phycr = FTMAC100_PHYCR_PHYAD(addr) |
+		    FTMAC100_PHYCR_REGAD(reg) |
+		    FTMAC100_PHYCR_MIIWR;
+	int ret;
+
+	writel(value, &ftmac100->phywdata);
+	writel(phycr, &ftmac100->phycr);
+
+	ret = readl_poll_timeout(&ftmac100->phycr, phycr,
+				 !(phycr & FTMAC100_PHYCR_MIIWR),
+				 FTMAC100_MDIO_TIMEOUT_USEC);
+	if (ret)
+		pr_err("%s: mdio write failed (addr=0x%x reg=0x%x)\n",
+		       bus->name, addr, reg);
+
+	return ret;
+}
+
+static int ftmac100_mdio_init(struct udevice *dev)
+{
+	struct ftmac100_data *priv = dev_get_priv(dev);
+	struct mii_dev *bus;
+	int ret;
+
+	bus = mdio_alloc();
+	if (!bus)
+		return -ENOMEM;
+
+	bus->read  = ftmac100_mdio_read;
+	bus->write = ftmac100_mdio_write;
+	bus->priv  = priv;
+
+	ret = mdio_register_seq(bus, dev_seq(dev));
+	if (ret) {
+		mdio_free(bus);
+		return ret;
+	}
+
+	priv->bus = bus;
+
+	return 0;
+}
+
 static int ftmac100_probe(struct udevice *dev)
 {
 	struct ftmac100_data *priv = dev_get_priv(dev);
 	priv->name = dev->name;
+	int ret = 0;
+
+	ret = ftmac100_mdio_init(dev);
+	if (ret) {
+		dev_err(dev, "Failed to initialize mdiobus: %d\n", ret);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static int ftmac100_remove(struct udevice *dev)
+{
+	struct ftmac100_data *priv = dev_get_priv(dev);
+
+	mdio_unregister(priv->bus);
+	mdio_free(priv->bus);
+
 	return 0;
 }
 
@@ -348,12 +450,13 @@ static const struct udevice_id ftmac100_ids[] = {
 };
 
 U_BOOT_DRIVER(ftmac100) = {
-	.name	= "nds32_mac",
+	.name	= "ftmac100",
 	.id	= UCLASS_ETH,
 	.of_match = ftmac100_ids,
 	.bind	= ftmac100_bind,
 	.of_to_plat = ftmac100_of_to_plat,
 	.probe	= ftmac100_probe,
+	.remove = ftmac100_remove,
 	.ops	= &ftmac100_ops,
 	.priv_auto	= sizeof(struct ftmac100_data),
 	.plat_auto	= sizeof(struct eth_pdata),
diff --git a/drivers/net/ftmac100.h b/drivers/net/ftmac100.h
index 75a49f628a6..21d339f835b 100644
--- a/drivers/net/ftmac100.h
+++ b/drivers/net/ftmac100.h
@@ -93,6 +93,15 @@ struct ftmac100 {
 #define FTMAC100_MACCR_RX_BROADPKT	(1 << 17)
 
 /*
+ * PHY control register
+ */
+#define FTMAC100_PHYCR_MIIRDATA		0xffff
+#define FTMAC100_PHYCR_PHYAD(x)		(((x) & 0x1f) << 16)
+#define FTMAC100_PHYCR_REGAD(x)		(((x) & 0x1f) << 21)
+#define FTMAC100_PHYCR_MIIWR		BIT(27)
+#define FTMAC100_PHYCR_MIIRD		BIT(26)
+
+/*
  * Transmit descriptor, aligned to 16 bytes
  */
 struct ftmac100_txdes {