net: ti: icssg-prueth: Add ICSSG ethernet driver

This is the PURSS Ethernet driver for TI AM654 Sr2.0 and laterSoCs
with the ICSSG PRU Sub-system running EMAC firmware.
This driver caters to either of the slices(pru/rtu pair)
of the icssg subsystem.

One and exactly one of the slices is supported
as the u-boot ethernet supports probing one interface
at a time.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

9 files changed, 1839 insertions, 0 deletions

diff --git a/drivers/net/ti/Kconfig b/drivers/net/ti/Kconfig
index f2dbbd0128..305b244cb9 100644
--- a/drivers/net/ti/Kconfig
+++ b/drivers/net/ti/Kconfig
@@ -32,3 +32,11 @@ config TI_AM65_CPSW_NUSS
 	help
 	  This driver supports TI K3 MCU CPSW Nuss Ethernet controller
 	  in Texas Instruments K3 AM65x SoCs.
+
+config TI_AM64_ICSSG_PRUETH
+	bool "TI Gigabit PRU Ethernet driver"
+	depends on ARCH_K3
+	select PHYLIB
+	help
+	  Support Gigabit Ethernet ports over the ICSSG PRU Subsystem
+	  This subsystem is available starting with the AM65 platform.
diff --git a/drivers/net/ti/Makefile b/drivers/net/ti/Makefile
index 8d3808bb4b..161e00711b 100644
--- a/drivers/net/ti/Makefile
+++ b/drivers/net/ti/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_DRIVER_TI_CPSW) += cpsw.o cpsw-common.o cpsw_mdio.o
 obj-$(CONFIG_DRIVER_TI_EMAC) += davinci_emac.o
 obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o cpsw_mdio.o
 obj-$(CONFIG_TI_AM65_CPSW_NUSS) += am65-cpsw-nuss.o cpsw_mdio.o
+obj-$(CONFIG_TI_AM64_ICSSG_PRUETH) += icssg_prueth.o cpsw_mdio.o icssg_classifier.o icssg_config.o
diff --git a/drivers/net/ti/icss_mii_rt.h b/drivers/net/ti/icss_mii_rt.h
new file mode 100644
index 0000000000..bb5f2e8492
--- /dev/null
+++ b/drivers/net/ti/icss_mii_rt.h
@@ -0,0 +1,167 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* PRU-ICSS MII_RT register definitions
+ *
+ * Copyright (C) 2015-2020 Texas Instruments Incorporated - http://www.ti.com
+ */
+
+#ifndef __NET_PRUSS_MII_RT_H__
+#define __NET_PRUSS_MII_RT_H__
+
+#include <regmap.h>
+
+/* PRUSS_MII_RT Registers */
+#define PRUSS_MII_RT_RXCFG0		0x0
+#define PRUSS_MII_RT_RXCFG1		0x4
+#define PRUSS_MII_RT_TXCFG0		0x10
+#define PRUSS_MII_RT_TXCFG1		0x14
+#define PRUSS_MII_RT_TX_CRC0		0x20
+#define PRUSS_MII_RT_TX_CRC1		0x24
+#define PRUSS_MII_RT_TX_IPG0		0x30
+#define PRUSS_MII_RT_TX_IPG1		0x34
+#define PRUSS_MII_RT_PRS0		0x38
+#define PRUSS_MII_RT_PRS1		0x3c
+#define PRUSS_MII_RT_RX_FRMS0		0x40
+#define PRUSS_MII_RT_RX_FRMS1		0x44
+#define PRUSS_MII_RT_RX_PCNT0		0x48
+#define PRUSS_MII_RT_RX_PCNT1		0x4c
+#define PRUSS_MII_RT_RX_ERR0		0x50
+#define PRUSS_MII_RT_RX_ERR1		0x54
+
+/* PRUSS_MII_RT_RXCFG0/1 bits */
+#define PRUSS_MII_RT_RXCFG_RX_ENABLE		BIT(0)
+#define PRUSS_MII_RT_RXCFG_RX_DATA_RDY_MODE_DIS	BIT(1)
+#define PRUSS_MII_RT_RXCFG_RX_CUT_PREAMBLE	BIT(2)
+#define PRUSS_MII_RT_RXCFG_RX_MUX_SEL		BIT(3)
+#define PRUSS_MII_RT_RXCFG_RX_L2_EN		BIT(4)
+#define PRUSS_MII_RT_RXCFG_RX_BYTE_SWAP		BIT(5)
+#define PRUSS_MII_RT_RXCFG_RX_AUTO_FWD_PRE	BIT(6)
+#define PRUSS_MII_RT_RXCFG_RX_L2_EOF_SCLR_DIS	BIT(9)
+
+/* PRUSS_MII_RT_TXCFG0/1 bits */
+#define PRUSS_MII_RT_TXCFG_TX_ENABLE		BIT(0)
+#define PRUSS_MII_RT_TXCFG_TX_AUTO_PREAMBLE	BIT(1)
+#define PRUSS_MII_RT_TXCFG_TX_EN_MODE		BIT(2)
+#define PRUSS_MII_RT_TXCFG_TX_BYTE_SWAP		BIT(3)
+#define PRUSS_MII_RT_TXCFG_TX_MUX_SEL		BIT(8)
+#define PRUSS_MII_RT_TXCFG_PRE_TX_AUTO_SEQUENCE	BIT(9)
+#define PRUSS_MII_RT_TXCFG_PRE_TX_AUTO_ESC_ERR	BIT(10)
+#define PRUSS_MII_RT_TXCFG_TX_32_MODE_EN	BIT(11)
+#define PRUSS_MII_RT_TXCFG_TX_IPG_WIRE_CLK_EN	BIT(12)	/* SR2.0 onwards */
+
+#define PRUSS_MII_RT_TXCFG_TX_START_DELAY_SHIFT	16
+#define PRUSS_MII_RT_TXCFG_TX_START_DELAY_MASK	GENMASK(25, 16)
+
+#define PRUSS_MII_RT_TXCFG_TX_CLK_DELAY_SHIFT	28
+#define PRUSS_MII_RT_TXCFG_TX_CLK_DELAY_MASK	GENMASK(30, 28)
+
+/* PRUSS_MII_RT_TX_IPG0/1 bits */
+#define PRUSS_MII_RT_TX_IPG_IPG_SHIFT	0
+#define PRUSS_MII_RT_TX_IPG_IPG_MASK	GENMASK(9, 0)
+
+/* PRUSS_MII_RT_PRS0/1 bits */
+#define PRUSS_MII_RT_PRS_COL	BIT(0)
+#define PRUSS_MII_RT_PRS_CRS	BIT(1)
+
+/* PRUSS_MII_RT_RX_FRMS0/1 bits */
+#define PRUSS_MII_RT_RX_FRMS_MIN_FRM_SHIFT	0
+#define PRUSS_MII_RT_RX_FRMS_MIN_FRM_MASK	GENMASK(15, 0)
+
+#define PRUSS_MII_RT_RX_FRMS_MAX_FRM_SHIFT	16
+#define PRUSS_MII_RT_RX_FRMS_MAX_FRM_MASK	GENMASK(31, 16)
+
+/* Min/Max in MII_RT_RX_FRMS */
+/* For EMAC and Switch */
+#define PRUSS_MII_RT_RX_FRMS_MAX	(VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
+#define PRUSS_MII_RT_RX_FRMS_MIN_FRM	(64)
+
+/* for HSR and PRP */
+#define PRUSS_MII_RT_RX_FRMS_MAX_FRM_LRE	(PRUSS_MII_RT_RX_FRMS_MAX + \
+						 ICSS_LRE_TAG_RCT_SIZE)
+/* PRUSS_MII_RT_RX_PCNT0/1 bits */
+#define PRUSS_MII_RT_RX_PCNT_MIN_PCNT_SHIFT	0
+#define PRUSS_MII_RT_RX_PCNT_MIN_PCNT_MASK	GENMASK(3, 0)
+
+#define PRUSS_MII_RT_RX_PCNT_MAX_PCNT_SHIFT	4
+#define PRUSS_MII_RT_RX_PCNT_MAX_PCNT_MASK	GENMASK(7, 4)
+
+/* PRUSS_MII_RT_RX_ERR0/1 bits */
+#define PRUSS_MII_RT_RX_ERR_MIN_PCNT_ERR	BIT(0)
+#define PRUSS_MII_RT_RX_ERR_MAX_PCNT_ERR	BIT(1)
+#define PRUSS_MII_RT_RX_ERR_MIN_FRM_ERR		BIT(2)
+#define PRUSS_MII_RT_RX_ERR_MAX_FRM_ERR		BIT(3)
+
+#define ICSSG_CFG_OFFSET	0
+#define RGMII_CFG_OFFSET	4
+
+/* Constant to choose between MII0 and MII1 */
+#define ICSS_MII0	0
+#define ICSS_MII1	1
+
+/* ICSSG_CFG Register bits */
+#define ICSSG_CFG_SGMII_MODE	BIT(16)
+#define ICSSG_CFG_TX_PRU_EN	BIT(11)
+#define ICSSG_CFG_RX_SFD_TX_SOF_EN	BIT(10)
+#define ICSSG_CFG_RTU_PRU_PSI_SHARE_EN	BIT(9)
+#define ICSSG_CFG_IEP1_TX_EN	BIT(8)
+#define ICSSG_CFG_MII1_MODE	GENMASK(6, 5)
+#define ICSSG_CFG_MII1_MODE_SHIFT	5
+#define ICSSG_CFG_MII0_MODE	GENMASK(4, 3)
+#define ICSSG_CFG_MII0_MODE_SHIFT	3
+#define ICSSG_CFG_RX_L2_G_EN	BIT(2)
+#define ICSSG_CFG_TX_L2_EN	BIT(1)
+#define ICSSG_CFG_TX_L1_EN	BIT(0)
+
+enum mii_mode { MII_MODE_MII = 0, MII_MODE_RGMII, MII_MODE_SGMII };
+
+/* RGMII CFG Register bits */
+#define RGMII_CFG_GIG_EN_MII0	BIT(17)
+#define RGMII_CFG_GIG_EN_MII1	BIT(21)
+#define RGMII_CFG_FULL_DUPLEX_MII0	BIT(18)
+#define RGMII_CFG_FULL_DUPLEX_MII1	BIT(22)
+#define RGMII_CFG_SPEED_MII0	GENMASK(2, 1)
+#define RGMII_CFG_SPEED_MII1	GENMASK(6, 5)
+#define RGMII_CFG_SPEED_MII0_SHIFT	1
+#define RGMII_CFG_SPEED_MII1_SHIFT	5
+#define RGMII_CFG_FULLDUPLEX_MII0	BIT(3)
+#define RGMII_CFG_FULLDUPLEX_MII1	BIT(7)
+#define RGMII_CFG_FULLDUPLEX_MII0_SHIFT	3
+#define RGMII_CFG_FULLDUPLEX_MII1_SHIFT	7
+#define RGMII_CFG_SPEED_10M	0
+#define RGMII_CFG_SPEED_100M	1
+#define RGMII_CFG_SPEED_1G	2
+
+static inline void icssg_mii_update_ipg(struct regmap *mii_rt, int mii, u32 ipg)
+{
+	u32 val;
+
+	if (mii == ICSS_MII0) {
+		regmap_write(mii_rt, PRUSS_MII_RT_TX_IPG0, ipg);
+	} else {
+		/* Errata workaround: IEP1 is not read by h/w unless IEP0 is written */
+		regmap_read(mii_rt, PRUSS_MII_RT_TX_IPG0, &val);
+		regmap_write(mii_rt, PRUSS_MII_RT_TX_IPG1, ipg);
+		regmap_write(mii_rt, PRUSS_MII_RT_TX_IPG0, val);
+	}
+}
+
+static inline void icssg_update_rgmii_cfg(struct regmap *miig_rt, bool gig_en,
+					  bool full_duplex, int mii)
+{
+	u32 gig_en_mask, gig_val = 0, full_duplex_mask, full_duplex_val = 0;
+
+	gig_en_mask = (mii == ICSS_MII0) ? RGMII_CFG_GIG_EN_MII0 :
+					RGMII_CFG_GIG_EN_MII1;
+	if (gig_en)
+		gig_val = gig_en_mask;
+	regmap_update_bits(miig_rt, RGMII_CFG_OFFSET, gig_en_mask, gig_val);
+
+	full_duplex_mask = (mii == ICSS_MII0) ? RGMII_CFG_FULL_DUPLEX_MII0 :
+					   RGMII_CFG_FULL_DUPLEX_MII1;
+	if (full_duplex)
+		full_duplex_val = full_duplex_mask;
+	regmap_update_bits(miig_rt, RGMII_CFG_OFFSET, full_duplex_mask,
+			   full_duplex_val);
+}
+
+#endif /* __NET_PRUSS_MII_RT_H__ */
diff --git a/drivers/net/ti/icssg_classifier.c b/drivers/net/ti/icssg_classifier.c
new file mode 100644
index 0000000000..413bcb4936
--- /dev/null
+++ b/drivers/net/ti/icssg_classifier.c
@@ -0,0 +1,367 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Texas Instruments ICSSG Ethernet Driver
+ *
+ * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ */
+
+#include <common.h>
+#include <dm/ofnode.h>
+#include <regmap.h>
+
+#define ICSSG_NUM_CLASSIFIERS	16
+#define ICSSG_NUM_FT1_SLOTS	8
+#define ICSSG_NUM_FT3_SLOTS	16
+
+#define ICSSG_NUM_CLASSIFIERS_IN_USE	1
+
+/* Filter 1 - FT1 */
+#define FT1_NUM_SLOTS	8
+#define FT1_SLOT_SIZE	0x10	/* bytes */
+
+/* offsets from FT1 slot base i.e. slot 1 start */
+#define FT1_DA0		0x0
+#define FT1_DA1		0x4
+#define FT1_DA0_MASK	0x8
+#define FT1_DA1_MASK	0xc
+
+#define FT1_N_REG(slize, n, reg)	(offs[slice].ft1_slot_base + FT1_SLOT_SIZE * (n) + (reg))
+
+#define FT1_LEN_MASK	GENMASK(19, 16)
+#define FT1_LEN_SHIFT	16
+#define FT1_LEN(len)	(((len) << FT1_LEN_SHIFT) & FT1_LEN_MASK)
+
+#define FT1_START_MASK	GENMASK(14, 0)
+#define FT1_START(start)	((start) & FT1_START_MASK)
+
+#define FT1_MATCH_SLOT(n)	(GENMASK(23, 16) & (BIT(n) << 16))
+
+enum ft1_cfg_type {
+	FT1_CFG_TYPE_DISABLED = 0,
+	FT1_CFG_TYPE_EQ,
+	FT1_CFG_TYPE_GT,
+	FT1_CFG_TYPE_LT,
+};
+
+#define FT1_CFG_SHIFT(n)	(2 * (n))
+#define FT1_CFG_MASK(n)	(0x3 << FT1_CFG_SHIFT((n)))
+
+/* Filter 3 -  FT3 */
+#define FT3_NUM_SLOTS	16
+#define FT3_SLOT_SIZE	0x20	/* bytes */
+
+/* offsets from FT3 slot n's base */
+#define FT3_START	0
+#define FT3_START_AUTO	0x4
+#define FT3_START_OFFSET	0x8
+#define FT3_JUMP_OFFSET	0xc
+#define FT3_LEN		0x10
+#define FT3_CFG		0x14
+#define FT3_T		0x18
+#define FT3_T_MASK	0x1c
+
+#define FT3_N_REG(slize, n, reg)	(offs[slice].ft3_slot_base + FT3_SLOT_SIZE * (n) + (reg))
+
+/* offsets from rx_class n's base */
+#define RX_CLASS_AND_EN	0
+#define RX_CLASS_OR_EN	0x4
+
+#define RX_CLASS_NUM_SLOTS	16
+#define RX_CLASS_EN_SIZE	0x8	/* bytes */
+
+#define RX_CLASS_N_REG(slice, n, reg)	(offs[slice].rx_class_base + RX_CLASS_EN_SIZE * (n) + (reg))
+
+/* RX Class Gates */
+#define RX_CLASS_GATES_SIZE	0x4	/* bytes */
+
+#define RX_CLASS_GATES_N_REG(slice, n)	(offs[slice].rx_class_gates_base + RX_CLASS_GATES_SIZE * (n))
+
+#define RX_CLASS_GATES_ALLOW_MASK	BIT(6)
+#define RX_CLASS_GATES_RAW_MASK		BIT(5)
+#define RX_CLASS_GATES_PHASE_MASK	BIT(4)
+
+/* RX Class traffic data matching bits */
+#define RX_CLASS_FT_UC		BIT(31)
+#define RX_CLASS_FT_MC		BIT(30)
+#define RX_CLASS_FT_BC		BIT(29)
+#define RX_CLASS_FT_FW		BIT(28)
+#define RX_CLASS_FT_RCV		BIT(27)
+#define RX_CLASS_FT_VLAN	BIT(26)
+#define RX_CLASS_FT_DA_P	BIT(25)
+#define RX_CLASS_FT_DA_I	BIT(24)
+#define RX_CLASS_FT_FT1_MATCH_MASK	GENMASK(23, 16)
+#define RX_CLASS_FT_FT1_MATCH_SHIFT	16
+#define RX_CLASS_FT_FT3_MATCH_MASK	GENMASK(15, 0)
+#define RX_CLASS_FT_FT3_MATCH_SHIFT	0
+
+#define RX_CLASS_FT_FT1_MATCH(slot)	((BIT(slot) << RX_CLASS_FT_FT1_MATCH_SHIFT) & RX_CLASS_FT_FT1_MATCH_MASK)
+
+enum rx_class_sel_type {
+	RX_CLASS_SEL_TYPE_OR = 0,
+	RX_CLASS_SEL_TYPE_AND = 1,
+	RX_CLASS_SEL_TYPE_OR_AND_AND = 2,
+	RX_CLASS_SEL_TYPE_OR_OR_AND = 3,
+};
+
+#define FT1_CFG_SHIFT(n)	(2 * (n))
+#define FT1_CFG_MASK(n)		(0x3 << FT1_CFG_SHIFT((n)))
+
+#define RX_CLASS_SEL_SHIFT(n)	(2 * (n))
+#define RX_CLASS_SEL_MASK(n)	(0x3 << RX_CLASS_SEL_SHIFT((n)))
+
+#define ICSSG_CFG_OFFSET	0
+
+#define ICSSG_CFG_RX_L2_G_EN	BIT(2)
+
+/* these are register offsets per PRU */
+struct miig_rt_offsets {
+	u32 mac0;
+	u32 mac1;
+	u32 ft1_start_len;
+	u32 ft1_cfg;
+	u32 ft1_slot_base;
+	u32 ft3_slot_base;
+	u32 ft3_p_base;
+	u32 ft_rx_ptr;
+	u32 rx_class_base;
+	u32 rx_class_cfg1;
+	u32 rx_class_cfg2;
+	u32 rx_class_gates_base;
+	u32 rx_green;
+	u32 rx_rate_cfg_base;
+	u32 rx_rate_src_sel0;
+	u32 rx_rate_src_sel1;
+	u32 tx_rate_cfg_base;
+	u32 stat_base;
+	u32 tx_hsr_tag;
+	u32 tx_hsr_seq;
+	u32 tx_vlan_type;
+	u32 tx_vlan_ins;
+};
+
+static struct miig_rt_offsets offs[] = {
+	/* PRU0 */
+	{
+		0x8,
+		0xc,
+		0x80,
+		0x84,
+		0x88,
+		0x108,
+		0x308,
+		0x408,
+		0x40c,
+		0x48c,
+		0x490,
+		0x494,
+		0x4d4,
+		0x4e4,
+		0x504,
+		0x508,
+		0x50c,
+		0x54c,
+		0x63c,
+		0x640,
+		0x644,
+		0x648,
+	},
+	/* PRU1 */
+	{
+		0x10,
+		0x14,
+		0x64c,
+		0x650,
+		0x654,
+		0x6d4,
+		0x8d4,
+		0x9d4,
+		0x9d8,
+		0xa58,
+		0xa5c,
+		0xa60,
+		0xaa0,
+		0xab0,
+		0xad0,
+		0xad4,
+		0xad8,
+		0xb18,
+		0xc08,
+		0xc0c,
+		0xc10,
+		0xc14,
+	},
+};
+
+static inline u32 addr_to_da0(const u8 *addr)
+{
+	return (u32)(addr[0] | addr[1] << 8 |
+		addr[2] << 16 | addr[3] << 24);
+};
+
+static inline u32 addr_to_da1(const u8 *addr)
+{
+	return (u32)(addr[4] | addr[5] << 8);
+};
+
+static void rx_class_ft1_set_start_len(struct regmap *miig_rt, int slice,
+				       u16 start, u8 len)
+{
+	u32 offset, val;
+
+	offset = offs[slice].ft1_start_len;
+	val = FT1_LEN(len) | FT1_START(start);
+	regmap_write(miig_rt, offset, val);
+}
+
+static void rx_class_ft1_set_da(struct regmap *miig_rt, int slice,
+				int n, const u8 *addr)
+{
+	u32 offset;
+
+	offset = FT1_N_REG(slice, n, FT1_DA0);
+	regmap_write(miig_rt, offset, addr_to_da0(addr));
+	offset = FT1_N_REG(slice, n, FT1_DA1);
+	regmap_write(miig_rt, offset, addr_to_da1(addr));
+}
+
+static void rx_class_ft1_set_da_mask(struct regmap *miig_rt, int slice,
+				     int n, const u8 *addr)
+{
+	u32 offset;
+
+	offset = FT1_N_REG(slice, n, FT1_DA0_MASK);
+	regmap_write(miig_rt, offset, addr_to_da0(addr));
+	offset = FT1_N_REG(slice, n, FT1_DA1_MASK);
+	regmap_write(miig_rt, offset, addr_to_da1(addr));
+}
+
+static void rx_class_ft1_cfg_set_type(struct regmap *miig_rt, int slice, int n,
+				      enum ft1_cfg_type type)
+{
+	u32 offset;
+
+	offset = offs[slice].ft1_cfg;
+	regmap_update_bits(miig_rt, offset, FT1_CFG_MASK(n),
+			   type << FT1_CFG_SHIFT(n));
+}
+
+static void rx_class_sel_set_type(struct regmap *miig_rt, int slice, int n,
+				  enum rx_class_sel_type type)
+{
+	u32 offset;
+
+	offset = offs[slice].rx_class_cfg1;
+	regmap_update_bits(miig_rt, offset, RX_CLASS_SEL_MASK(n),
+			   type << RX_CLASS_SEL_SHIFT(n));
+}
+
+static void rx_class_set_and(struct regmap *miig_rt, int slice, int n,
+			     u32 data)
+{
+	u32 offset;
+
+	offset = RX_CLASS_N_REG(slice, n, RX_CLASS_AND_EN);
+	regmap_write(miig_rt, offset, data);
+}
+
+static void rx_class_set_or(struct regmap *miig_rt, int slice, int n,
+			    u32 data)
+{
+	u32 offset;
+
+	offset = RX_CLASS_N_REG(slice, n, RX_CLASS_OR_EN);
+	regmap_write(miig_rt, offset, data);
+}
+
+void icssg_class_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac)
+{
+	regmap_write(miig_rt, offs[slice].mac0, addr_to_da0(mac));
+	regmap_write(miig_rt, offs[slice].mac1, addr_to_da1(mac));
+}
+
+void icssg_class_disable_n(struct regmap *miig_rt, int slice, int n)
+{
+	u32 data, offset;
+
+	/* AND_EN = 0 */
+	rx_class_set_and(miig_rt, slice, n, 0);
+	/* OR_EN = 0 */
+	rx_class_set_or(miig_rt, slice, n, 0);
+
+	/* set CFG1 to OR */
+	rx_class_sel_set_type(miig_rt, slice, n, RX_CLASS_SEL_TYPE_OR);
+
+	/* configure gate */
+	offset = RX_CLASS_GATES_N_REG(slice, n);
+	regmap_read(miig_rt, offset, &data);
+	/* clear class_raw so we go through filters */
+	data &= ~RX_CLASS_GATES_RAW_MASK;
+	/* set allow and phase mask */
+	data |= RX_CLASS_GATES_ALLOW_MASK | RX_CLASS_GATES_PHASE_MASK;
+	regmap_write(miig_rt, offset, data);
+}
+
+/* disable all RX traffic */
+void icssg_class_disable(struct regmap *miig_rt, int slice)
+{
+	int n;
+
+	/* Enable RX_L2_G */
+	regmap_update_bits(miig_rt, ICSSG_CFG_OFFSET, ICSSG_CFG_RX_L2_G_EN,
+			   ICSSG_CFG_RX_L2_G_EN);
+
+	for (n = 0; n < ICSSG_NUM_CLASSIFIERS; n++)
+		icssg_class_disable_n(miig_rt, slice, n);
+
+	/* FT1 Disabled */
+	for (n = 0; n < ICSSG_NUM_FT1_SLOTS; n++) {
+		u8 addr[] = { 0, 0, 0, 0, 0, 0, };
+
+		rx_class_ft1_cfg_set_type(miig_rt, slice, n,
+					  FT1_CFG_TYPE_DISABLED);
+		rx_class_ft1_set_da(miig_rt, slice, n, addr);
+		rx_class_ft1_set_da_mask(miig_rt, slice, n, addr);
+	}
+
+	/* clear CFG2 */
+	regmap_write(miig_rt, offs[slice].rx_class_cfg2, 0);
+}
+
+void icssg_class_default(struct regmap *miig_rt, int slice, bool allmulti)
+{
+	u32 data;
+	int n;
+
+	/* defaults */
+	icssg_class_disable(miig_rt, slice);
+
+	/* Setup Classifier */
+	for (n = 0; n < ICSSG_NUM_CLASSIFIERS_IN_USE; n++) {
+		/* match on Broadcast or MAC_PRU address */
+		data = RX_CLASS_FT_BC | RX_CLASS_FT_DA_P;
+
+		/* multicast? */
+		if (allmulti)
+			data |= RX_CLASS_FT_MC;
+
+		rx_class_set_or(miig_rt, slice, n, data);
+
+		/* set CFG1 for OR_OR_AND for classifier */
+		rx_class_sel_set_type(miig_rt, slice, n,
+				      RX_CLASS_SEL_TYPE_OR_OR_AND);
+	}
+
+	/* clear CFG2 */
+	regmap_write(miig_rt, offs[slice].rx_class_cfg2, 0);
+}
+
+/* required for SR2 for SAV check */
+void icssg_ft1_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac_addr)
+{
+	u8 mask_addr[] = { 0, 0, 0, 0, 0, 0, };
+
+	rx_class_ft1_set_start_len(miig_rt, slice, 0, 6);
+	rx_class_ft1_set_da(miig_rt, slice, 0, mac_addr);
+	rx_class_ft1_set_da_mask(miig_rt, slice, 0, mask_addr);
+	rx_class_ft1_cfg_set_type(miig_rt, slice, 0, FT1_CFG_TYPE_EQ);
+}
diff --git a/drivers/net/ti/icssg_config.c b/drivers/net/ti/icssg_config.c
new file mode 100644
index 0000000000..07c05b3795
--- /dev/null
+++ b/drivers/net/ti/icssg_config.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+/* ICSSG Ethernet driver
+ *
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
+ */
+
+#include <phy.h>
+#include "icssg_prueth.h"
+#include "icssg_switch_map.h"
+#include "icss_mii_rt.h"
+#include <dm/device_compat.h>
+
+/* TX IPG Values to be set for 100M and 1G link speeds.  These values are
+ * in ocp_clk cycles. So need change if ocp_clk is changed for a specific
+ * h/w design.
+ */
+
+/* SR2.0 IPG is in rgmii_clk (125MHz) clock cycles + 1 */
+#define MII_RT_TX_IPG_100M      0x17
+#define MII_RT_TX_IPG_1G        0xb
+
+#define	ICSSG_QUEUES_MAX		64
+#define	ICSSG_QUEUE_OFFSET		0xd00
+#define	ICSSG_QUEUE_PEEK_OFFSET		0xe00
+#define	ICSSG_QUEUE_CNT_OFFSET		0xe40
+#define	ICSSG_QUEUE_RESET_OFFSET	0xf40
+
+#define	ICSSG_NUM_TX_QUEUES	8
+
+#define	RECYCLE_Q_SLICE0	16
+#define	RECYCLE_Q_SLICE1	17
+
+#define	ICSSG_NUM_OTHER_QUEUES	5	/* port, host and special queues */
+
+#define	PORT_HI_Q_SLICE0	32
+#define	PORT_LO_Q_SLICE0	33
+#define	HOST_HI_Q_SLICE0	34
+#define	HOST_LO_Q_SLICE0	35
+#define	HOST_SPL_Q_SLICE0	40	/* Special Queue */
+
+#define	PORT_HI_Q_SLICE1	36
+#define	PORT_LO_Q_SLICE1	37
+#define	HOST_HI_Q_SLICE1	38
+#define	HOST_LO_Q_SLICE1	39
+#define	HOST_SPL_Q_SLICE1	41	/* Special Queue */
+
+#define MII_RXCFG_DEFAULT	(PRUSS_MII_RT_RXCFG_RX_ENABLE | \
+				 PRUSS_MII_RT_RXCFG_RX_DATA_RDY_MODE_DIS | \
+				 PRUSS_MII_RT_RXCFG_RX_L2_EN | \
+				 PRUSS_MII_RT_RXCFG_RX_L2_EOF_SCLR_DIS)
+
+#define MII_TXCFG_DEFAULT	(PRUSS_MII_RT_TXCFG_TX_ENABLE | \
+				 PRUSS_MII_RT_TXCFG_TX_AUTO_PREAMBLE | \
+				 PRUSS_MII_RT_TXCFG_TX_32_MODE_EN | \
+				 PRUSS_MII_RT_TXCFG_TX_IPG_WIRE_CLK_EN)
+
+#define ICSSG_CFG_DEFAULT	(ICSSG_CFG_TX_L1_EN | \
+				 ICSSG_CFG_TX_L2_EN | ICSSG_CFG_RX_L2_G_EN | \
+				 ICSSG_CFG_TX_PRU_EN | /* SR2.0 only */ \
+				 ICSSG_CFG_SGMII_MODE)
+
+struct map {
+	int queue;
+	u32 pd_addr_start;
+	u32 flags;
+	bool special;
+};
+
+struct map hwq_map[2][ICSSG_NUM_OTHER_QUEUES] = {
+	{
+		{ PORT_HI_Q_SLICE0, PORT_DESC0_HI, 0x200000, 0 },
+		{ PORT_LO_Q_SLICE0, PORT_DESC0_LO, 0, 0 },
+		{ HOST_HI_Q_SLICE0, HOST_DESC0_HI, 0x200000, 0 },
+		{ HOST_LO_Q_SLICE0, HOST_DESC0_LO, 0, 0 },
+		{ HOST_SPL_Q_SLICE0, HOST_SPPD0, 0x400000, 1 },
+	},
+	{
+		{ PORT_HI_Q_SLICE1, PORT_DESC1_HI, 0xa00000, 0 },
+		{ PORT_LO_Q_SLICE1, PORT_DESC1_LO, 0x800000, 0 },
+		{ HOST_HI_Q_SLICE1, HOST_DESC1_HI, 0xa00000, 0 },
+		{ HOST_LO_Q_SLICE1, HOST_DESC1_LO, 0x800000, 0 },
+		{ HOST_SPL_Q_SLICE1, HOST_SPPD1, 0xc00000, 1 },
+	},
+};
+
+static void icssg_config_mii_init(struct prueth *prueth, int mii)
+{
+	struct regmap *mii_rt = prueth->mii_rt;
+	u32 rxcfg_reg, txcfg_reg, pcnt_reg;
+	u32 rxcfg, txcfg;
+
+	rxcfg_reg = (mii == ICSS_MII0) ? PRUSS_MII_RT_RXCFG0 :
+				       PRUSS_MII_RT_RXCFG1;
+	txcfg_reg = (mii == ICSS_MII0) ? PRUSS_MII_RT_TXCFG0 :
+				       PRUSS_MII_RT_TXCFG1;
+	pcnt_reg = (mii == ICSS_MII0) ? PRUSS_MII_RT_RX_PCNT0 :
+				       PRUSS_MII_RT_RX_PCNT1;
+
+	icssg_config_ipg(prueth, SPEED_1000, mii);
+
+	rxcfg = MII_RXCFG_DEFAULT;
+	txcfg = MII_TXCFG_DEFAULT;
+
+	if (mii == ICSS_MII1) {
+		rxcfg |= PRUSS_MII_RT_RXCFG_RX_MUX_SEL;
+		txcfg |= PRUSS_MII_RT_TXCFG_TX_MUX_SEL;
+	}
+
+	regmap_write(mii_rt, rxcfg_reg, rxcfg);
+	regmap_write(mii_rt, txcfg_reg, txcfg);
+	regmap_write(mii_rt, pcnt_reg, 0x1);
+}
+
+static void icssg_config_rgmii_init(struct prueth *prueth, int slice)
+{
+	void __iomem *smem = (void __iomem *)prueth->shram.pa;
+	struct regmap *miig_rt = prueth->miig_rt;
+	int queue = 0, i, j;
+	u8 pd[ICSSG_SPECIAL_PD_SIZE];
+	u32 *pdword;
+	u32 mii_mode;
+
+	mii_mode = MII_MODE_RGMII << ICSSG_CFG_MII0_MODE_SHIFT;
+	mii_mode |= MII_MODE_RGMII << ICSSG_CFG_MII1_MODE_SHIFT;
+	regmap_write(miig_rt, ICSSG_CFG_OFFSET, ICSSG_CFG_DEFAULT | mii_mode);
+
+	icssg_update_rgmii_cfg(miig_rt, true, true, slice);
+	/* reset hwqueues */
+	if (slice)
+		queue = ICSSG_NUM_TX_QUEUES;
+
+	for (i = 0; i < ICSSG_NUM_TX_QUEUES; i++) {
+		regmap_write(miig_rt, ICSSG_QUEUE_RESET_OFFSET, queue);
+		queue++;
+	}
+
+	queue = slice ? RECYCLE_Q_SLICE1 : RECYCLE_Q_SLICE0;
+	regmap_write(miig_rt, ICSSG_QUEUE_RESET_OFFSET, queue);
+
+	for (i = 0; i < ICSSG_NUM_OTHER_QUEUES; i++) {
+		regmap_write(miig_rt, ICSSG_QUEUE_RESET_OFFSET,
+			     hwq_map[slice][i].queue);
+	}
+
+	/* initialize packet descriptors in SMEM */
+	/* push pakcet descriptors to hwqueues */
+
+	pdword = (u32 *)pd;
+	for (j = 0; j < ICSSG_NUM_OTHER_QUEUES; j++) {
+		struct map *mp;
+		int pd_size, num_pds;
+		u32 pdaddr;
+
+		mp = &hwq_map[slice][j];
+		if (mp->special) {
+			pd_size = ICSSG_SPECIAL_PD_SIZE;
+			num_pds = ICSSG_NUM_SPECIAL_PDS;
+		} else	{
+			pd_size = ICSSG_NORMAL_PD_SIZE;
+			num_pds = ICSSG_NUM_NORMAL_PDS;
+		}
+
+		for (i = 0; i < num_pds; i++) {
+			memset(pd, 0, pd_size);
+
+			pdword[0] &= cpu_to_le32(ICSSG_FLAG_MASK);
+			pdword[0] |= cpu_to_le32(mp->flags);
+			pdaddr = mp->pd_addr_start + i * pd_size;
+
+			memcpy_toio(smem + pdaddr, pd, pd_size);
+			queue = mp->queue;
+			regmap_write(miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue,
+				     pdaddr);
+		}
+	}
+}
+
+void icssg_config_ipg(struct prueth *prueth, int speed, int mii)
+{
+	switch (speed) {
+	case SPEED_1000:
+		icssg_mii_update_ipg(prueth->mii_rt, mii, MII_RT_TX_IPG_1G);
+		break;
+	case SPEED_100:
+		icssg_mii_update_ipg(prueth->mii_rt, mii, MII_RT_TX_IPG_100M);
+		break;
+	default:
+		/* Other links speeds not supported */
+		pr_err("Unsupported link speed\n");
+		return;
+	}
+}
+
+static void emac_r30_cmd_init(struct prueth *prueth)
+{
+	int i;
+	struct icssg_r30_cmd *p;
+
+	p = (struct icssg_r30_cmd *)(prueth->dram.pa + MGR_R30_CMD_OFFSET);
+
+	for (i = 0; i < 4; i++)
+		writel(EMAC_NONE, &p->cmd[i]);
+}
+
+static int emac_r30_is_done(struct prueth *prueth)
+{
+	const struct icssg_r30_cmd *p;
+	int i;
+	u32 cmd;
+
+	p = (const struct icssg_r30_cmd *)(prueth->dram.pa + MGR_R30_CMD_OFFSET);
+
+	for (i = 0; i < 4; i++) {
+		cmd = readl(&p->cmd[i]);
+		if (cmd != EMAC_NONE)
+			return 0;
+	}
+
+	return 1;
+}
+
+int icssg_config(struct prueth *prueth)
+{
+	void *config = (void *)(prueth->dram.pa + ICSSG_CONFIG_OFFSET);
+	u8 *cfg_byte_ptr = config;
+	struct icssg_flow_cfg *flow_cfg;
+	struct icssg_buffer_pool_cfg *bpool_cfg;
+	struct icssg_rxq_ctx *rxq_ctx;
+	int i;
+	u32 addr, mask;
+	int slice = prueth->slice;
+
+	rxq_ctx = (struct icssg_rxq_ctx *)(prueth->dram.pa + HOST_RX_Q_PRE_CONTEXT_OFFSET);
+	memset_io(config, 0, TAS_GATE_MASK_LIST0);
+	icssg_config_rgmii_init(prueth, slice);
+	icssg_config_mii_init(prueth, slice);
+
+	/* set GPMUX to MII mode */
+	pruss_cfg_set_gpmux(prueth->pruss, slice, 2);
+
+	/* set GPI mode */
+	pruss_cfg_gpimode(prueth->pruss, slice, PRUSS_GPI_MODE_MII);
+
+	/* enable XFR shift for PRU and RTU */
+	mask = PRUSS_SPP_XFER_SHIFT_EN | PRUSS_SPP_RTU_XFR_SHIFT_EN;
+	pruss_cfg_update(prueth->pruss, PRUSS_CFG_SPP, mask, mask);
+
+	/* set C28 to 0x100 */
+/*	This is currently hacked into pru_rproc.c
+ *	pru_rproc_set_ctable(prueth->pru[slice], PRU_C28, 0x100 << 8);
+ *	pru_rproc_set_ctable(prueth->rtu[slice], PRU_C28, 0x100 << 8);
+ *	pru_rproc_set_ctable(prueth->txpru[slice], PRU_C28, 0x100 << 8);
+ */
+
+	bpool_cfg = (struct icssg_buffer_pool_cfg *)(prueth->dram.pa + BUFFER_POOL_0_ADDR_OFFSET);
+
+	flow_cfg = config + PSI_L_REGULAR_FLOW_ID_BASE_OFFSET;
+	flow_cfg->rx_base_flow = cpu_to_le32(ICSSG_RX_CHAN_FLOW_ID);
+	flow_cfg->mgm_base_flow = 0;
+	*(cfg_byte_ptr + SPL_PKT_DEFAULT_PRIORITY) = 0;
+	*(cfg_byte_ptr + QUEUE_NUM_UNTAGGED) = 0x0;
+
+	/* Layout to have 64KB aligned buffer pool
+	 * |BPOOL0|BPOOL1|RX_CTX0|RX_CTX1|
+	 */
+
+	addr = lower_32_bits(prueth->sram_pa);
+	if (slice)
+		addr += PRUETH_NUM_BUF_POOLS * PRUETH_EMAC_BUF_POOL_SIZE;
+
+	if (addr % SZ_64K) {
+		dev_warn(prueth->dev, "buffer pool needs to be 64KB aligned\n");
+		return -EINVAL;
+	}
+
+	/* workaround for f/w bug. bpool 0 needs to be initilalized */
+	bpool_cfg[0].addr = cpu_to_le32(addr);
+	bpool_cfg[0].len = 0;
+
+	for (i = PRUETH_EMAC_BUF_POOL_START;
+	     i < (PRUETH_EMAC_BUF_POOL_START + PRUETH_NUM_BUF_POOLS);
+	     i++) {
+		bpool_cfg[i].addr = cpu_to_le32(addr);
+		bpool_cfg[i].len = cpu_to_le32(PRUETH_EMAC_BUF_POOL_SIZE);
+		addr += PRUETH_EMAC_BUF_POOL_SIZE;
+	}
+
+	addr += PRUETH_NUM_BUF_POOLS * PRUETH_EMAC_BUF_POOL_SIZE;
+	if (slice)
+		addr += PRUETH_EMAC_RX_CTX_BUF_SIZE;
+
+	for (i = 0; i < 3; i++)
+		rxq_ctx->start[i] = cpu_to_le32(addr);
+
+	addr += PRUETH_EMAC_RX_CTX_BUF_SIZE;
+	rxq_ctx->end = cpu_to_le32(addr);
+
+	emac_r30_cmd_init(prueth);
+	return 0;
+}
+
+/* commands to program ICSSG R30 registers */
+static struct icssg_r30_cmd emac_r32_bitmask[] = {
+	{{0xffff0004, 0xffff0100, 0xffff0100, EMAC_NONE}},	/* EMAC_PORT_DISABLE */
+	{{0xfffb0040, 0xfeff0200, 0xfeff0200, EMAC_NONE}},	/* EMAC_PORT_BLOCK */
+	{{0xffbb0000, 0xfcff0000, 0xdcff0000, EMAC_NONE}},	/* EMAC_PORT_FORWARD */
+	{{0xffbb0000, 0xfcff0000, 0xfcff2000, EMAC_NONE}},	/* EMAC_PORT_FORWARD_WO_LEARNING */
+	{{0xffff0001, EMAC_NONE,  EMAC_NONE, EMAC_NONE}},	/* ACCEPT ALL */
+	{{0xfffe0002, EMAC_NONE,  EMAC_NONE, EMAC_NONE}},	/* ACCEPT TAGGED */
+	{{0xfffc0000, EMAC_NONE,  EMAC_NONE, EMAC_NONE}},	/* ACCEPT UNTAGGED and PRIO */
+	{{EMAC_NONE,  0xffff0020, EMAC_NONE, EMAC_NONE}},	/* TAS Trigger List change */
+	{{EMAC_NONE,  0xdfff1000, EMAC_NONE, EMAC_NONE}},	/* TAS set state ENABLE*/
+	{{EMAC_NONE,  0xefff2000, EMAC_NONE, EMAC_NONE}},	/* TAS set state RESET*/
+	{{EMAC_NONE,  0xcfff0000, EMAC_NONE, EMAC_NONE}},	/* TAS set state DISABLE*/
+	{{EMAC_NONE,  EMAC_NONE,  0xffff0400, EMAC_NONE}},	/* UC flooding ENABLE*/
+	{{EMAC_NONE,  EMAC_NONE,  0xfbff0000, EMAC_NONE}},	/* UC flooding DISABLE*/
+	{{EMAC_NONE,  EMAC_NONE,  0xffff0800, EMAC_NONE}},	/* MC flooding ENABLE*/
+	{{EMAC_NONE,  EMAC_NONE,  0xf7ff0000, EMAC_NONE}},	/* MC flooding DISABLE*/
+	{{EMAC_NONE,  0xffff4000, EMAC_NONE, EMAC_NONE}},	/* Preemption on Tx ENABLE*/
+	{{EMAC_NONE,  0xbfff0000, EMAC_NONE, EMAC_NONE}}	/* Preemption on Tx DISABLE*/
+};
+
+int emac_set_port_state(struct prueth *prueth,
+			enum icssg_port_state_cmd cmd)
+{
+	struct icssg_r30_cmd *p;
+	int ret = -ETIMEDOUT;
+	int timeout = 10;
+	int i;
+
+	p = (struct icssg_r30_cmd *)(prueth->dram.pa + MGR_R30_CMD_OFFSET);
+
+	if (cmd >= ICSSG_EMAC_PORT_MAX_COMMANDS) {
+		dev_err(prueth->dev, "invalid port command\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < 4; i++)
+		writel(emac_r32_bitmask[cmd].cmd[i], &p->cmd[i]);
+
+	/* wait for done */
+	while (timeout) {
+		if (emac_r30_is_done(prueth)) {
+			ret = 0;
+			break;
+		}
+
+		udelay(2000);
+		timeout--;
+	}
+
+	if (ret == -ETIMEDOUT)
+		dev_err(prueth->dev, "timeout waiting for command done\n");
+
+	return ret;
+}
diff --git a/drivers/net/ti/icssg_config.h b/drivers/net/ti/icssg_config.h
new file mode 100644
index 0000000000..bdf3a12f56
--- /dev/null
+++ b/drivers/net/ti/icssg_config.h
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Texas Instruments ICSSG Ethernet driver
+ *
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ */
+
+#ifndef __NET_TI_ICSSG_CONFIG_H
+#define __NET_TI_ICSSG_CONFIG_H
+
+struct icssg_buffer_pool_cfg {
+	__le32  addr;
+	__le32  len;
+} __packed;
+
+struct icssg_flow_cfg {
+	__le16 rx_base_flow;
+	__le16 mgm_base_flow;
+} __packed;
+
+/* Shutdown command to stop processing at firmware.
+ * Command format : 0x8101ss00. ss - sequence number. Currently not used
+ * by driver.
+ */
+#define ICSSG_SHUTDOWN_CMD		0x81010000
+
+/* pstate speed/duplex command to set speed and duplex settings
+ * in firmware.
+ * Command format : 0x8102ssPN. ss - sequence number: currently not
+ * used by driver, P - port number: For switch, N - Speed/Duplex state
+ * - Possible values of N:
+ * 0x0 - 10Mbps/Half duplex ;
+ * 0x8 - 10Mbps/Full duplex ;
+ * 0x2 - 100Mbps/Half duplex;
+ * 0xa - 100Mbps/Full duplex;
+ * 0xc - 1Gbps/Full duplex;
+ * NOTE: The above are same as bits [3..1](slice 0) or bits [8..6](slice 1) of
+ * RGMII CFG register. So suggested to read the register to populate the command
+ * bits.
+ */
+#define ICSSG_PSTATE_SPEED_DUPLEX_CMD	0x81020000
+#define ICSSG_PSTATE_FULL_DUPLEX	BIT(3)
+#define ICSSG_PSTATE_SPEED_100		BIT(1)
+#define ICSSG_PSTATE_SPEED_1000		BIT(2)
+
+/* Flow IDs used in config structure to firmware. Should match with
+ * flow_id in struct dma for rx channels.
+ */
+#define ICSSG_RX_CHAN_FLOW_ID		0 /* flow id for host port */
+#define ICSSG_RX_MGM_CHAN_FLOW_ID	1 /* flow id for command response */
+
+/*------------------------ SR2.0 related --------------------------*/
+
+#define PRUETH_PKT_TYPE_CMD	0x10
+#define PRUETH_NAV_PS_DATA_SIZE	16	/* Protocol specific data size */
+#define PRUETH_NAV_SW_DATA_SIZE	16	/* SW related data size */
+#define PRUETH_MAX_RX_FLOWS	1	/* excluding default flow */
+#define PRUETH_RX_FLOW_DATA	0	/* FIXME: f/w bug to change to highest priority flow */
+
+#define PRUETH_EMAC_BUF_POOL_SIZE	SZ_8K
+#define PRUETH_EMAC_POOLS_PER_SLICE	24
+#define PRUETH_EMAC_BUF_POOL_START	8
+#define PRUETH_NUM_BUF_POOLS	8
+#define PRUETH_EMAC_RX_CTX_BUF_SIZE	SZ_16K	/* per slice */
+#define MSMC_RAM_SIZE	(2 * (PRUETH_EMAC_BUF_POOL_SIZE * PRUETH_NUM_BUF_POOLS + \
+			      PRUETH_EMAC_RX_CTX_BUF_SIZE))
+
+struct icssg_rxq_ctx {
+	__le32 start[3];
+	__le32 end;
+} __packed;
+
+/* Load time Fiwmware Configuration */
+
+#define ICSSG_FW_MGMT_CMD_HEADER	0x81
+#define ICSSG_FW_MGMT_FDB_CMD_TYPE	0x03
+#define ICSSG_FW_MGMT_CMD_TYPE		0x04
+#define ICSSG_FW_MGMT_PKT		0x80000000
+
+struct icssg_r30_cmd {
+	u32 cmd[4];
+} __packed;
+
+enum icssg_port_state_cmd {
+	ICSSG_EMAC_PORT_DISABLE = 0,
+	ICSSG_EMAC_PORT_BLOCK,
+	ICSSG_EMAC_PORT_FORWARD,
+	ICSSG_EMAC_PORT_FORWARD_WO_LEARNING,
+	ICSSG_EMAC_PORT_ACCEPT_ALL,
+	ICSSG_EMAC_PORT_ACCEPT_TAGGED,
+	ICSSG_EMAC_PORT_ACCEPT_UNTAGGED_N_PRIO,
+	ICSSG_EMAC_PORT_TAS_TRIGGER,
+	ICSSG_EMAC_PORT_TAS_ENABLE,
+	ICSSG_EMAC_PORT_TAS_RESET,
+	ICSSG_EMAC_PORT_TAS_DISABLE,
+	ICSSG_EMAC_PORT_UC_FLOODING_ENABLE,
+	ICSSG_EMAC_PORT_UC_FLOODING_DISABLE,
+	ICSSG_EMAC_PORT_MC_FLOODING_ENABLE,
+	ICSSG_EMAC_PORT_MC_FLOODING_DISABLE,
+	ICSSG_EMAC_PORT_PREMPT_TX_ENABLE,
+	ICSSG_EMAC_PORT_PREMPT_TX_DISABLE,
+	ICSSG_EMAC_PORT_MAX_COMMANDS
+};
+
+#define EMAC_NONE           0xffff0000
+#define EMAC_PRU0_P_DI      0xffff0004
+#define EMAC_PRU1_P_DI      0xffff0040
+#define EMAC_TX_P_DI        0xffff0100
+
+#define EMAC_PRU0_P_EN      0xfffb0000
+#define EMAC_PRU1_P_EN      0xffbf0000
+#define EMAC_TX_P_EN        0xfeff0000
+
+#define EMAC_P_BLOCK        0xffff0040
+#define EMAC_TX_P_BLOCK     0xffff0200
+#define EMAC_P_UNBLOCK      0xffbf0000
+#define EMAC_TX_P_UNBLOCK   0xfdff0000
+#define EMAC_LEAN_EN        0xfff70000
+#define EMAC_LEAN_DI        0xffff0008
+
+#define EMAC_ACCEPT_ALL     0xffff0001
+#define EMAC_ACCEPT_TAG     0xfffe0002
+#define EMAC_ACCEPT_PRIOR   0xfffc0000
+
+/* Config area lies in DRAM */
+#define ICSSG_CONFIG_OFFSET			0x0
+
+#define ICSSG_NUM_NORMAL_PDS	64
+#define ICSSG_NUM_SPECIAL_PDS	16
+
+#define ICSSG_NORMAL_PD_SIZE	8
+#define ICSSG_SPECIAL_PD_SIZE	20
+
+#define ICSSG_FLAG_MASK		0xff00ffff
+
+struct icssg_setclock_desc {
+	u8 request;
+	u8 restore;
+	u8 acknowledgment;
+	u8 cmp_status;
+	u32 margin;
+	u32 cyclecounter0_set;
+	u32 cyclecounter1_set;
+	u32 iepcount_set;
+	u32 rsvd1;
+	u32 rsvd2;
+	u32 CMP0_current;
+	u32 iepcount_current;
+	u32 difference;
+	u32 cyclecounter0_new;
+	u32 cyclecounter1_new;
+	u32 CMP0_new;
+} __packed;
+
+#define ICSSG_CMD_POP_SLICE0	56
+#define ICSSG_CMD_POP_SLICE1	60
+
+#define ICSSG_CMD_PUSH_SLICE0	57
+#define ICSSG_CMD_PUSH_SLICE1	61
+
+#define ICSSG_RSP_POP_SLICE0	58
+#define ICSSG_RSP_POP_SLICE1	62
+
+#define ICSSG_RSP_PUSH_SLICE0	56
+#define ICSSG_RSP_PUSH_SLICE1	60
+
+#define ICSSG_TS_POP_SLICE0	59
+#define ICSSG_TS_POP_SLICE1	63
+
+#define ICSSG_TS_PUSH_SLICE0	40
+#define ICSSG_TS_PUSH_SLICE1	41
+
+#endif /* __NET_TI_ICSSG_CONFIG_H */
diff --git a/drivers/net/ti/icssg_prueth.c b/drivers/net/ti/icssg_prueth.c
new file mode 100644
index 0000000000..1d14f00312
--- /dev/null
+++ b/drivers/net/ti/icssg_prueth.c
@@ -0,0 +1,534 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Texas Instruments K3 AM65 PRU Ethernet Driver
+ *
+ * Copyright (C) 2019-2021, Texas Instruments, Incorporated
+ *
+ */
+
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <clk.h>
+#include <dm/lists.h>
+#include <dm/device.h>
+#include <dma-uclass.h>
+#include <dm/of_access.h>
+#include <fs_loader.h>
+#include <miiphy.h>
+#include <misc.h>
+#include <net.h>
+#include <phy.h>
+#include <power-domain.h>
+#include <linux/soc/ti/ti-udma.h>
+#include <regmap.h>
+#include <remoteproc.h>
+#include <syscon.h>
+#include <linux/pruss_driver.h>
+#include <dm/device_compat.h>
+
+#include "cpsw_mdio.h"
+#include "icssg_prueth.h"
+#include "icss_mii_rt.h"
+
+#define ICSS_SLICE0     0
+#define ICSS_SLICE1     1
+
+#ifdef PKTSIZE_ALIGN
+#define UDMA_RX_BUF_SIZE PKTSIZE_ALIGN
+#else
+#define UDMA_RX_BUF_SIZE ALIGN(1522, ARCH_DMA_MINALIGN)
+#endif
+
+#ifdef PKTBUFSRX
+#define UDMA_RX_DESC_NUM PKTBUFSRX
+#else
+#define UDMA_RX_DESC_NUM 4
+#endif
+
+/* Config region lies in shared RAM */
+#define ICSS_CONFIG_OFFSET_SLICE0	0
+#define ICSS_CONFIG_OFFSET_SLICE1	0x8000
+
+/* Firmware flags */
+#define ICSS_SET_RUN_FLAG_VLAN_ENABLE		BIT(0)	/* switch only */
+#define ICSS_SET_RUN_FLAG_FLOOD_UNICAST		BIT(1)	/* switch only */
+#define ICSS_SET_RUN_FLAG_PROMISC		BIT(2)	/* MAC only */
+#define ICSS_SET_RUN_FLAG_MULTICAST_PROMISC	BIT(3)	/* MAC only */
+
+/* CTRLMMR_ICSSG_RGMII_CTRL register bits */
+#define ICSSG_CTRL_RGMII_ID_MODE		BIT(24)
+
+static int icssg_phy_init(struct udevice *dev)
+{
+	struct prueth *priv = dev_get_priv(dev);
+	struct phy_device *phydev;
+	u32 supported = PHY_GBIT_FEATURES;
+	int ret;
+
+	phydev = phy_connect(priv->bus,
+			     priv->phy_addr,
+			     priv->dev,
+			     priv->phy_interface);
+
+	if (!phydev) {
+		dev_err(dev, "phy_connect() failed\n");
+		return -ENODEV;
+	}
+
+	/* disable unsupported features */
+	supported &= ~(PHY_10BT_FEATURES |
+			SUPPORTED_100baseT_Half |
+			SUPPORTED_1000baseT_Half |
+			SUPPORTED_Pause |
+			SUPPORTED_Asym_Pause);
+
+	phydev->supported &= supported;
+	phydev->advertising = phydev->supported;
+
+#ifdef CONFIG_DM_ETH
+	if (ofnode_valid(priv->phy_node))
+		phydev->node = priv->phy_node;
+#endif
+
+	priv->phydev = phydev;
+	ret = phy_config(phydev);
+	if (ret < 0)
+		pr_err("phy_config() failed: %d", ret);
+
+	return ret;
+}
+
+static int icssg_mdio_init(struct udevice *dev)
+{
+	struct prueth *prueth = dev_get_priv(dev);
+
+	prueth->bus = cpsw_mdio_init(dev->name, prueth->mdio_base,
+				     prueth->mdio_freq,
+				     clk_get_rate(&prueth->mdiofck));
+	if (!prueth->bus)
+		return -EFAULT;
+
+	return 0;
+}
+
+static int icssg_update_link(struct prueth *priv)
+{
+	struct phy_device *phy = priv->phydev;
+	bool gig_en = false, full_duplex = false;
+
+	if (phy->link) { /* link up */
+		if (phy->speed == SPEED_1000)
+			gig_en = true;
+		if (phy->duplex == DUPLEX_FULL)
+			full_duplex = true;
+		/* Set the RGMII cfg for gig en and full duplex */
+		icssg_update_rgmii_cfg(priv->miig_rt, gig_en, full_duplex,
+				       priv->slice);
+		/* update the Tx IPG based on 100M/1G speed */
+		icssg_config_ipg(priv, phy->speed, priv->slice);
+
+		printf("link up on port %d, speed %d, %s duplex\n",
+		       priv->port_id, phy->speed,
+		       (phy->duplex == DUPLEX_FULL) ? "full" : "half");
+	} else {
+		printf("link down on port %d\n", priv->port_id);
+	}
+
+	return phy->link;
+}
+
+static int prueth_start(struct udevice *dev)
+{
+	struct ti_udma_drv_chan_cfg_data *dma_rx_cfg_data;
+	struct prueth *priv = dev_get_priv(dev);
+	struct eth_pdata *pdata = dev->platdata;
+	int ret, i;
+	char chn_name[16];
+
+	icssg_class_set_mac_addr(priv->miig_rt, priv->slice,
+				 (u8 *)pdata->enetaddr);
+
+	icssg_class_default(priv->miig_rt, priv->slice, 1);
+
+	/* To differentiate channels for SLICE0 vs SLICE1 */
+	snprintf(chn_name, sizeof(chn_name), "tx%d-0", priv->slice);
+
+	ret = dma_get_by_name(dev, chn_name, &priv->dma_tx);
+	if (ret)
+		dev_err(dev, "TX dma get failed %d\n", ret);
+
+	snprintf(chn_name, sizeof(chn_name), "rx%d", priv->slice);
+	ret = dma_get_by_name(dev, chn_name, &priv->dma_rx);
+	if (ret)
+		dev_err(dev, "RX dma get failed %d\n", ret);
+
+	/* check if the rx_flow_id of dma_rx is as expected since
+	 * driver hardcode that value in config struct to firmware
+	 * in probe. Just add this sanity check to catch any change
+	 * to rx channel assignment in the future.
+	 */
+	dma_get_cfg(&priv->dma_rx, 0, (void **)&dma_rx_cfg_data);
+	if (dma_rx_cfg_data->flow_id_base != ICSSG_RX_CHAN_FLOW_ID)
+		dev_err(dev,
+			"RX dma flow id bad, expected %d, actual %ld\n",
+			ICSSG_RX_CHAN_FLOW_ID, priv->dma_rx.id);
+
+	for (i = 0; i < UDMA_RX_DESC_NUM; i++) {
+		ret = dma_prepare_rcv_buf(&priv->dma_rx,
+					  net_rx_packets[i],
+					  UDMA_RX_BUF_SIZE);
+		if (ret)
+			dev_err(dev, "RX dma add buf failed %d\n", ret);
+	}
+
+	ret = dma_enable(&priv->dma_tx);
+	if (ret) {
+		dev_err(dev, "TX dma_enable failed %d\n", ret);
+		goto tx_fail;
+	}
+
+	ret = dma_enable(&priv->dma_rx);
+	if (ret) {
+		dev_err(dev, "RX dma_enable failed %d\n", ret);
+		goto rx_fail;
+	}
+
+	ret = phy_startup(priv->phydev);
+	if (ret) {
+		dev_err(dev, "phy_startup failed\n");
+		goto phy_fail;
+	}
+
+	ret = icssg_update_link(priv);
+	if (!ret) {
+		ret = -ENODEV;
+		goto phy_shut;
+	}
+
+	return 0;
+
+phy_shut:
+	phy_shutdown(priv->phydev);
+phy_fail:
+	dma_disable(&priv->dma_rx);
+	dma_free(&priv->dma_rx);
+rx_fail:
+	dma_disable(&priv->dma_tx);
+	dma_free(&priv->dma_tx);
+
+tx_fail:
+	icssg_class_disable(priv->miig_rt, priv->slice);
+
+	return ret;
+}
+
+void prueth_print_buf(ulong addr, const void *data, uint width,
+		      uint count, uint linelen)
+{
+	print_buffer(addr, data, width, count, linelen);
+}
+
+static int prueth_send(struct udevice *dev, void *packet, int length)
+{
+	struct prueth *priv = dev_get_priv(dev);
+	int ret;
+
+	ret = dma_send(&priv->dma_tx, packet, length, NULL);
+
+	return ret;
+}
+
+static int prueth_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+	struct prueth *priv = dev_get_priv(dev);
+	int ret;
+
+	/* try to receive a new packet */
+	ret = dma_receive(&priv->dma_rx, (void **)packetp, NULL);
+
+	return ret;
+}
+
+static int prueth_free_pkt(struct udevice *dev, uchar *packet, int length)
+{
+	struct prueth *priv = dev_get_priv(dev);
+	int ret = 0;
+
+	if (length > 0) {
+		u32 pkt = priv->rx_next % UDMA_RX_DESC_NUM;
+
+		dev_dbg(dev, "%s length:%d pkt:%u\n", __func__, length, pkt);
+
+		ret = dma_prepare_rcv_buf(&priv->dma_rx,
+					  net_rx_packets[pkt],
+					  UDMA_RX_BUF_SIZE);
+		priv->rx_next++;
+	}
+
+	return ret;
+}
+
+static void prueth_stop(struct udevice *dev)
+{
+	struct prueth *priv = dev_get_priv(dev);
+
+	icssg_class_disable(priv->miig_rt, priv->slice);
+
+	phy_shutdown(priv->phydev);
+
+	dma_disable(&priv->dma_tx);
+	dma_free(&priv->dma_tx);
+
+	dma_disable(&priv->dma_rx);
+	dma_free(&priv->dma_rx);
+
+	/* Workaround for shutdown command */
+	writel(0x0, priv->tmaddr + priv->slice * 0x200);
+}
+
+static const struct eth_ops prueth_ops = {
+	.start		= prueth_start,
+	.send		= prueth_send,
+	.recv		= prueth_recv,
+	.free_pkt	= prueth_free_pkt,
+	.stop		= prueth_stop,
+};
+
+static int icssg_ofdata_parse_phy(struct udevice *dev, ofnode port_np)
+{
+	struct prueth *priv = dev_get_priv(dev);
+	struct ofnode_phandle_args out_args;
+	const char *phy_mode;
+	int ret = 0;
+
+	phy_mode = ofnode_read_string(port_np, "phy-mode");
+	if (phy_mode) {
+		priv->phy_interface =
+				phy_get_interface_by_name(phy_mode);
+		if (priv->phy_interface == -1) {
+			dev_err(dev, "Invalid PHY mode '%s'\n",
+				phy_mode);
+			ret = -EINVAL;
+			goto out;
+		}
+	}
+
+	ret = ofnode_parse_phandle_with_args(port_np, "phy-handle",
+					     NULL, 0, 0, &out_args);
+	if (ret) {
+		dev_err(dev, "can't parse phy-handle port (%d)\n", ret);
+		ret = 0;
+	}
+
+	priv->phy_node = out_args.node;
+	ret = ofnode_read_u32(priv->phy_node, "reg", &priv->phy_addr);
+	if (ret)
+		dev_err(dev, "failed to get phy_addr port (%d)\n", ret);
+
+out:
+	return ret;
+}
+
+static int prueth_config_rgmiidelay(struct prueth *prueth,
+				    ofnode eth_np)
+{
+	struct udevice *dev = prueth->dev;
+	struct regmap *ctrl_mmr;
+	int ret = 0;
+	ofnode node;
+	u32 tmp[2];
+
+	ret = ofnode_read_u32_array(eth_np, "syscon-rgmii-delay", tmp, 2);
+	if (ret) {
+		dev_err(dev, "no syscon-rgmii-delay\n");
+		return ret;
+	}
+
+	node = ofnode_get_by_phandle(tmp[0]);
+	if (!ofnode_valid(node)) {
+		dev_err(dev, "can't get syscon-rgmii-delay node\n");
+		return -EINVAL;
+	}
+
+	ctrl_mmr = syscon_node_to_regmap(node);
+	if (!ctrl_mmr) {
+		dev_err(dev, "can't get ctrl_mmr regmap\n");
+		return -EINVAL;
+	}
+
+	regmap_update_bits(ctrl_mmr, tmp[1], ICSSG_CTRL_RGMII_ID_MODE, 0);
+
+	return 0;
+}
+
+static int prueth_probe(struct udevice *dev)
+{
+	struct prueth *prueth;
+	int ret = 0;
+	ofnode eth0_node, eth1_node, node, pruss_node, mdio_node, sram_node;
+	u32 phandle, err, sp;
+	struct udevice **prussdev = NULL;
+
+	prueth = dev_get_priv(dev);
+	prueth->dev = dev;
+	err = ofnode_read_u32(dev_ofnode(dev), "ti,prus", &phandle);
+	if (err)
+		return err;
+
+	node = ofnode_get_by_phandle(phandle);
+	if (!ofnode_valid(node))
+		return -EINVAL;
+
+	pruss_node = ofnode_get_parent(node);
+	err = misc_init_by_ofnode(pruss_node);
+	if (err)
+		return err;
+
+	ret = device_find_global_by_ofnode(pruss_node, prussdev);
+	if (ret)
+		dev_err(dev, "error getting the pruss dev\n");
+	prueth->pruss = *prussdev;
+
+	ret = pruss_request_mem_region(*prussdev, PRUSS_MEM_SHRD_RAM2,
+				       &prueth->shram);
+	if (ret)
+		return ret;
+
+	ret = pruss_request_tm_region(*prussdev, &prueth->tmaddr);
+	if (ret)
+		return ret;
+
+	node = dev_ofnode(dev);
+	eth0_node = ofnode_find_subnode(node, "ethernet-mii0");
+	eth1_node = ofnode_find_subnode(node, "ethernet-mii1");
+	/* one node must be present and available else we fail */
+	if (!ofnode_valid(eth0_node) && !ofnode_valid(eth1_node)) {
+		dev_err(dev, "neither ethernet-mii0 nor ethernet-mii1 node available\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Exactly one node must be present as uboot ethernet framework does
+	 * not support two interfaces in a single probe. So Device Tree should
+	 * have exactly one of mii0 or mii1 interface.
+	 */
+	if (ofnode_valid(eth0_node) && ofnode_valid(eth1_node)) {
+		dev_err(dev, "Both slices cannot be supported\n");
+		return -EINVAL;
+	}
+
+	if (ofnode_valid(eth0_node)) {
+		prueth->slice = 0;
+		icssg_ofdata_parse_phy(dev, eth0_node);
+		prueth->eth_node[PRUETH_MAC0] = eth0_node;
+	}
+
+	if (ofnode_valid(eth1_node)) {
+		prueth->slice = 1;
+		icssg_ofdata_parse_phy(dev, eth1_node);
+		prueth->eth_node[PRUETH_MAC0] = eth1_node;
+	}
+
+	ret = pruss_request_mem_region(*prussdev,
+				       prueth->slice ? PRUSS_MEM_DRAM1 : PRUSS_MEM_DRAM0,
+				       &prueth->dram);
+	if (ret) {
+		dev_err(dev, "could not request DRAM%d region\n", prueth->slice);
+		return ret;
+	}
+
+	prueth->miig_rt = syscon_regmap_lookup_by_phandle(dev, "mii-g-rt");
+	if (!prueth->miig_rt) {
+		dev_err(dev, "couldn't get mii-g-rt syscon regmap\n");
+		return -ENODEV;
+	}
+
+	prueth->mii_rt = syscon_regmap_lookup_by_phandle(dev, "mii-rt");
+	if (!prueth->mii_rt) {
+		dev_err(dev, "couldn't get mii-rt syscon regmap\n");
+		return -ENODEV;
+	}
+
+	ret = ofnode_read_u32(dev_ofnode(dev), "sram", &sp);
+	if (ret) {
+		dev_err(dev, "sram node fetch failed %d\n", ret);
+		return ret;
+	}
+
+	sram_node = ofnode_get_by_phandle(sp);
+	if (!ofnode_valid(sram_node))
+		return -EINVAL;
+
+	prueth->sram_pa = ofnode_get_addr(sram_node);
+	if (prueth->sram_pa % SZ_64K != 0) {
+		/* This is constraint for SR2.0 firmware */
+		dev_err(dev, "sram address needs to be 64KB aligned\n");
+		return -EINVAL;
+	}
+
+	if (!prueth->slice) {
+		ret = prueth_config_rgmiidelay(prueth, eth0_node);
+		if (ret) {
+			dev_err(dev, "prueth_config_rgmiidelay failed\n");
+			return ret;
+		}
+	} else {
+		ret = prueth_config_rgmiidelay(prueth, eth1_node);
+		if (ret) {
+			dev_err(dev, "prueth_config_rgmiidelay failed\n");
+			return ret;
+		}
+	}
+
+	mdio_node = ofnode_find_subnode(pruss_node, "mdio");
+	prueth->mdio_base = ofnode_get_addr(mdio_node);
+	ofnode_read_u32(mdio_node, "bus_freq", &prueth->mdio_freq);
+
+	ret = clk_get_by_name_nodev(mdio_node, "fck", &prueth->mdiofck);
+	if (ret) {
+		dev_err(dev, "failed to get clock %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_enable(&prueth->mdiofck);
+	if (ret) {
+		dev_err(dev, "clk_enable failed %d\n", ret);
+		return ret;
+	}
+
+	ret = icssg_mdio_init(dev);
+	if (ret)
+		return ret;
+
+	ret = icssg_phy_init(dev);
+	if (ret) {
+		dev_err(dev, "phy_init failed\n");
+		goto out;
+	}
+
+	/* Set Load time configuration */
+	icssg_config(prueth);
+
+	return 0;
+out:
+	cpsw_mdio_free(prueth->bus);
+	clk_disable(&prueth->mdiofck);
+
+	return ret;
+}
+
+static const struct udevice_id prueth_ids[] = {
+	{ .compatible = "ti,am654-icssg-prueth" },
+	{ }
+};
+
+U_BOOT_DRIVER(prueth) = {
+	.name	= "prueth",
+	.id	= UCLASS_ETH,
+	.of_match = prueth_ids,
+	.probe	= prueth_probe,
+	.ops	= &prueth_ops,
+	.priv_auto_alloc_size = sizeof(struct prueth),
+	.platdata_auto_alloc_size = sizeof(struct eth_pdata),
+	.flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
diff --git a/drivers/net/ti/icssg_prueth.h b/drivers/net/ti/icssg_prueth.h
new file mode 100644
index 0000000000..97df3ab2ab
--- /dev/null
+++ b/drivers/net/ti/icssg_prueth.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver
+ *
+ * Copyright (C) 2019, Texas Instruments, Incorporated
+ *
+ */
+
+#ifndef __NET_TI_ICSSG_PRUETH_H
+#define __NET_TI_ICSSG_PRUETH_H
+
+#include <asm/io.h>
+#include <clk.h>
+#include <dm/lists.h>
+#include <dm/ofnode.h>
+#include <dm/device.h>
+#include <dma-uclass.h>
+#include <regmap.h>
+#include <linux/pruss_driver.h>
+#include "icssg_config.h"
+
+void icssg_class_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac);
+void icssg_class_disable(struct regmap *miig_rt, int slice);
+void icssg_class_default(struct regmap *miig_rt, int slice, bool allmulti);
+void icssg_ft1_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac_addr);
+
+enum prueth_mac {
+	PRUETH_MAC0 = 0,
+	PRUETH_MAC1,
+	PRUETH_NUM_MACS,
+};
+
+enum prueth_port {
+	PRUETH_PORT_HOST = 0,	/* host side port */
+	PRUETH_PORT_MII0,	/* physical port MII 0 */
+	PRUETH_PORT_MII1,	/* physical port MII 1 */
+};
+
+struct prueth {
+	struct udevice		*dev;
+	struct udevice		*pruss;
+	struct regmap		*miig_rt;
+	struct regmap		*mii_rt;
+	fdt_addr_t		mdio_base;
+	struct pruss_mem_region shram;
+	struct pruss_mem_region dram;
+	phys_addr_t		tmaddr;
+	struct mii_dev		*bus;
+	u32			port_id;
+	u32			sram_pa;
+	struct phy_device	*phydev;
+	bool			has_phy;
+	ofnode			phy_node;
+	u32			phy_addr;
+	ofnode			eth_node[PRUETH_NUM_MACS];
+	u32			mdio_freq;
+	int			phy_interface;
+	struct			clk mdiofck;
+	struct dma		dma_tx;
+	struct dma		dma_rx;
+	u32			rx_next;
+	u32			rx_pend;
+	int			slice;
+};
+
+/* config helpers */
+void icssg_config_ipg(struct prueth *prueth, int speed, int mii);
+int icssg_config(struct prueth *prueth);
+
+#endif /* __NET_TI_ICSSG_PRUETH_H */
diff --git a/drivers/net/ti/icssg_switch_map.h b/drivers/net/ti/icssg_switch_map.h
new file mode 100644
index 0000000000..4343601ca3
--- /dev/null
+++ b/drivers/net/ti/icssg_switch_map.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Texas Instruments ICSSG Ethernet driver
+ *
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *
+ */
+
+#ifndef __NET_TI_ICSSG_SWITCH_MAP_H
+#define __NET_TI_ICSSG_SWITCH_MAP_H
+
+/* Memory Usage of : SHARED_MEMORY
+ *
+ */
+
+/*Time after which FDB entries are checked for aged out values. Value in nanoseconds*/
+#define FDB_AGEING_TIMEOUT_OFFSET                          0x0014
+/*default VLAN tag for Host Port*/
+#define HOST_PORT_DF_VLAN_OFFSET                           0x001C
+/*Same as HOST_PORT_DF_VLAN_OFFSET*/
+#define EMAC_ICSSG_SWITCH_PORT0_DEFAULT_VLAN_OFFSET        HOST_PORT_DF_VLAN_OFFSET
+/*default VLAN tag for P1 Port*/
+#define P1_PORT_DF_VLAN_OFFSET                             0x0020
+/*Same as P1_PORT_DF_VLAN_OFFSET*/
+#define EMAC_ICSSG_SWITCH_PORT1_DEFAULT_VLAN_OFFSET        P1_PORT_DF_VLAN_OFFSET
+/*default VLAN tag for P2 Port*/
+#define P2_PORT_DF_VLAN_OFFSET                             0x0024
+/*Same as P2_PORT_DF_VLAN_OFFSET*/
+#define EMAC_ICSSG_SWITCH_PORT2_DEFAULT_VLAN_OFFSET        P2_PORT_DF_VLAN_OFFSET
+/*VLAN-FID Table offset. 4096 VIDs. 2B per VID = 8KB = 0x2000*/
+#define VLAN_STATIC_REG_TABLE_OFFSET                       0x0100
+/*VLAN-FID Table offset for EMAC*/
+#define EMAC_ICSSG_SWITCH_DEFAULT_VLAN_TABLE_OFFSET        VLAN_STATIC_REG_TABLE_OFFSET
+/*packet descriptor Q reserved memory*/
+#define PORT_DESC0_HI                                      0x2104
+/*packet descriptor Q reserved memory*/
+#define PORT_DESC0_LO                                      0x2F6C
+/*packet descriptor Q reserved memory*/
+#define PORT_DESC1_HI                                      0x3DD4
+/*packet descriptor Q reserved memory*/
+#define PORT_DESC1_LO                                      0x4C3C
+/*packet descriptor Q reserved memory*/
+#define HOST_DESC0_HI                                      0x5AA4
+/*packet descriptor Q reserved memory*/
+#define HOST_DESC0_LO                                      0x5F0C
+/*packet descriptor Q reserved memory*/
+#define HOST_DESC1_HI                                      0x6374
+/*packet descriptor Q reserved memory*/
+#define HOST_DESC1_LO                                      0x67DC
+/*special packet descriptor Q reserved memory*/
+#define HOST_SPPD0                                         0x7AAC
+/*special packet descriptor Q reserved memory*/
+#define HOST_SPPD1                                         0x7EAC
+/*_Small_Description_*/
+#define TIMESYNC_FW_WC_CYCLECOUNT_OFFSET                   0x83EC
+/*IEP count hi roll over count*/
+#define TIMESYNC_FW_WC_HI_ROLLOVER_COUNT_OFFSET            0x83F4
+/*_Small_Description_*/
+#define TIMESYNC_FW_WC_COUNT_HI_SW_OFFSET_OFFSET           0x83F8
+/*Set clock descriptor*/
+#define TIMESYNC_FW_WC_SETCLOCK_DESC_OFFSET                0x83FC
+/*_Small_Description_*/
+#define TIMESYNC_FW_WC_SYNCOUT_REDUCTION_FACTOR_OFFSET     0x843C
+/*_Small_Description_*/
+#define TIMESYNC_FW_WC_SYNCOUT_REDUCTION_COUNT_OFFSET      0x8440
+/*_Small_Description_*/
+#define TIMESYNC_FW_WC_SYNCOUT_START_TIME_CYCLECOUNT_OFFSET 0x8444
+/*Control variable to generate SYNC1*/
+#define TIMESYNC_FW_WC_ISOM_PIN_SIGNAL_EN_OFFSET           0x844C
+/*SystemTime Sync0 periodicity*/
+#define TIMESYNC_FW_ST_SYNCOUT_PERIOD_OFFSET               0x8450
+/*pktTxDelay for P1 = link speed dependent p1 mac delay + p1 phy delay*/
+#define TIMESYNC_FW_WC_PKTTXDELAY_P1_OFFSET                0x8454
+/*pktTxDelay for P2 = link speed dependent p2 mac delay + p2 phy delay*/
+#define TIMESYNC_FW_WC_PKTTXDELAY_P2_OFFSET                0x8458
+/*Set clock operation done signal for next task*/
+#define TIMESYNC_FW_SIG_PNFW_OFFSET                        0x845C
+/*Set clock operation done signal for next task*/
+#define TIMESYNC_FW_SIG_TIMESYNCFW_OFFSET                  0x8460
+
+/* Memory Usage of : MSMC
+ *
+ */
+
+/* Memory Usage of : DMEM0
+ *
+ */
+
+/*New list is copied at this time*/
+#define TAS_CONFIG_CHANGE_TIME                             0x000C
+/*config change error counter*/
+#define TAS_CONFIG_CHANGE_ERROR_COUNTER                    0x0014
+/*TAS List update pending flag*/
+#define TAS_CONFIG_PENDING                                 0x0018
+/*TAS list update trigger flag*/
+#define TAS_CONFIG_CHANGE                                  0x0019
+/*List length for new TAS schedule*/
+#define TAS_ADMIN_LIST_LENGTH                              0x001A
+/*Currently active TAS list index*/
+#define TAS_ACTIVE_LIST_INDEX                              0x001B
+/*Cycle time for the new TAS schedule*/
+#define TAS_ADMIN_CYCLE_TIME                               0x001C
+/*Cycle counts remaining till the TAS list update*/
+#define TAS_CONFIG_CHANGE_CYCLE_COUNT                      0x0020
+/*Base Flow ID for sending packets to Host for Slice0*/
+#define PSI_L_REGULAR_FLOW_ID_BASE_OFFSET                  0x0024
+/*Same as PSI_L_REGULAR_FLOW_ID_BASE_OFFSET*/
+#define EMAC_ICSSG_SWITCH_PSI_L_REGULAR_FLOW_ID_BASE_OFFSET PSI_L_REGULAR_FLOW_ID_BASE_OFFSET
+/*Base Flow ID for sending mgmt and Tx TS to Host for Slice0*/
+#define PSI_L_MGMT_FLOW_ID_OFFSET                          0x0026
+/*Same as PSI_L_MGMT_FLOW_ID_OFFSET*/
+#define EMAC_ICSSG_SWITCH_PSI_L_MGMT_FLOW_ID_BASE_OFFSET   PSI_L_MGMT_FLOW_ID_OFFSET
+/*Queue number for Special packets written here*/
+#define SPL_PKT_DEFAULT_PRIORITY                           0x0028
+/*Express Preemptible Queue Mask*/
+#define EXPRESS_PRE_EMPTIVE_Q_MASK                         0x0029
+/*Port1/Port2 Default Queue number for untagged packets, only 1B is used*/
+#define QUEUE_NUM_UNTAGGED                                 0x002A
+/*Stores the table used for priority regeneration. 1B per PCP/Queue*/
+#define PORT_Q_PRIORITY_REGEN_OFFSET                       0x002C
+/*For marking packet as priority/express (this feature is disabled) or cut-through/S&F. One per slice*/
+#define EXPRESS_PRE_EMPTIVE_Q_MAP                          0x0034
+/*Stores the table used for priority mapping. 1B per PCP/Queue*/
+#define PORT_Q_PRIORITY_MAPPING_OFFSET                     0x003C
+/*TAS gate mask for windows list0*/
+#define TAS_GATE_MASK_LIST0                                0x0100
+/*TAS gate mask for windows list1*/
+#define TAS_GATE_MASK_LIST1                                0x0350
+/*Memory to Enable/Disable Preemption on TX side*/
+#define PRE_EMPTION_ENABLE_TX                              0x05A0
+/*Active State of Preemption on TX side*/
+#define PRE_EMPTION_ACTIVE_TX                              0x05A1
+/*Memory to Enable/Disable Verify State Machine Preemption*/
+#define PRE_EMPTION_ENABLE_VERIFY                          0x05A2
+/*Verify Status of State Machine*/
+#define PRE_EMPTION_VERIFY_STATUS                          0x05A3
+/*Non Final Fragment Size supported by Link Partner*/
+#define PRE_EMPTION_ADD_FRAG_SIZE_REMOTE                   0x05A4
+/*Non Final Fragment Size supported by Firmware*/
+#define PRE_EMPTION_ADD_FRAG_SIZE_LOCAL                    0x05A6
+/*Time in ms the State machine waits for respond packet*/
+#define PRE_EMPTION_VERIFY_TIME                            0x05A8
+/*Memory used for R30 related management commands*/
+#define MGR_R30_CMD_OFFSET                                 0x05AC
+/*HW Buffer Pool0 base address*/
+#define BUFFER_POOL_0_ADDR_OFFSET                          0x05BC
+/*16B for Host Egress MSMC Q (Pre-emptible) context*/
+#define HOST_RX_Q_PRE_CONTEXT_OFFSET                       0x0684
+/*Buffer for 8 FDB entries to be added by 'Add Multiple FDB entries IOCTL*/
+#define FDB_CMD_BUFFER                                     0x0894
+
+/* Memory Usage of : DMEM1
+ *
+ */
+
+/* Memory Usage of : PA_STAT
+ *
+ */
+
+/*Start of 32 bits PA_STAT counters*/
+#define PA_STAT_32b_START_OFFSET                           0x0080
+
+#endif /* __NET_TI_ICSSG_SWITCH_MAP_H */