[PATCH v5 2/5] net: ti: icssg: Add Firmware config and classification APIs.
MD Danish Anwar
danishanwar at ti.com
Thu Apr 4 09:08:00 CEST 2024
Add icssg_config.h / .c and icssg_classifier.c files. These are firmware
configuration and classification related files. Add MII helper APIs and
MACROs. These APIs and MACROs will be later used by ICSSG Ethernet driver.
Also introduce icssg_prueth.h which has definition of prueth related
structures.
Signed-off-by: MD Danish Anwar <danishanwar at ti.com>
---
drivers/net/ti/icss_mii_rt.h | 192 ++++++++++++++
drivers/net/ti/icssg_classifier.c | 376 +++++++++++++++++++++++++++
drivers/net/ti/icssg_config.c | 406 ++++++++++++++++++++++++++++++
drivers/net/ti/icssg_config.h | 177 +++++++++++++
drivers/net/ti/icssg_prueth.h | 83 ++++++
5 files changed, 1234 insertions(+)
create mode 100644 drivers/net/ti/icss_mii_rt.h
create mode 100644 drivers/net/ti/icssg_classifier.c
create mode 100644 drivers/net/ti/icssg_config.c
create mode 100644 drivers/net/ti/icssg_config.h
create mode 100644 drivers/net/ti/icssg_prueth.h
diff --git a/drivers/net/ti/icss_mii_rt.h b/drivers/net/ti/icss_mii_rt.h
new file mode 100644
index 0000000000..fd95d4d7c1
--- /dev/null
+++ b/drivers/net/ti/icss_mii_rt.h
@@ -0,0 +1,192 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* PRU-ICSS MII_RT register definitions
+ *
+ * Copyright (C) 2015-2024 Texas Instruments Incorporated - https://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_INBAND_EN_MII0 BIT(16)
+#define RGMII_CFG_GIG_EN_MII0 BIT(17)
+#define RGMII_CFG_INBAND_EN_MII1 BIT(20)
+#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, int speed,
+ bool full_duplex, int slice, struct prueth_priv *priv)
+{
+ u32 gig_en_mask, gig_val = 0, full_duplex_mask, full_duplex_val = 0;
+ u32 inband_en_mask, inband_val = 0;
+
+ gig_en_mask = (slice == ICSS_MII0) ? RGMII_CFG_GIG_EN_MII0 :
+ RGMII_CFG_GIG_EN_MII1;
+ if (speed == SPEED_1000)
+ gig_val = gig_en_mask;
+ regmap_update_bits(miig_rt, RGMII_CFG_OFFSET, gig_en_mask, gig_val);
+
+ inband_en_mask = (slice == ICSS_MII0) ? RGMII_CFG_INBAND_EN_MII0 :
+ RGMII_CFG_INBAND_EN_MII1;
+ if (speed == SPEED_10 && phy_interface_is_rgmii(priv->phydev))
+ inband_val = inband_en_mask;
+ regmap_update_bits(miig_rt, RGMII_CFG_OFFSET, inband_en_mask, inband_val);
+
+ full_duplex_mask = (slice == 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);
+}
+
+static inline void icssg_miig_set_interface_mode(struct regmap *miig_rt, int mii, int phy_if)
+{
+ u32 val, mask, shift;
+
+ mask = mii == ICSS_MII0 ? ICSSG_CFG_MII0_MODE : ICSSG_CFG_MII1_MODE;
+ shift = mii == ICSS_MII0 ? ICSSG_CFG_MII0_MODE_SHIFT : ICSSG_CFG_MII1_MODE_SHIFT;
+
+ val = MII_MODE_RGMII;
+ if (phy_if == PHY_INTERFACE_MODE_MII)
+ val = MII_MODE_MII;
+
+ val <<= shift;
+ regmap_update_bits(miig_rt, ICSSG_CFG_OFFSET, mask, val);
+ regmap_read(miig_rt, ICSSG_CFG_OFFSET, &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..e510a1cd3e
--- /dev/null
+++ b/drivers/net/ti/icssg_classifier.c
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Texas Instruments ICSSG Ethernet Driver
+ *
+ * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ */
+
+#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 MAC_INTERFACE_0 0x18
+#define MAC_INTERFACE_1 0x1c
+
+#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_host_mac_addr(struct regmap *miig_rt, u8 *mac)
+{
+ regmap_write(miig_rt, MAC_INTERFACE_0, addr_to_da0(mac));
+ regmap_write(miig_rt, MAC_INTERFACE_1, addr_to_da1(mac));
+}
+
+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;
+
+ /* defaults */
+ icssg_class_disable(miig_rt, slice);
+
+ /* Setup Classifier */
+ /* 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, 0, data);
+
+ /* set CFG1 for OR_OR_AND for classifier */
+ rx_class_sel_set_type(miig_rt, slice, 0,
+ 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, 6, 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..7cf3f737af
--- /dev/null
+++ b/drivers/net/ti/icssg_config.c
@@ -0,0 +1,406 @@
+// SPDX-License-Identifier: GPL-2.0
+/* ICSSG Ethernet driver
+ *
+ * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://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)
+
+#define FDB_GEN_CFG1 0x60
+#define SMEM_VLAN_OFFSET 8
+#define SMEM_VLAN_OFFSET_MASK GENMASK(25, 8)
+
+#define FDB_GEN_CFG2 0x64
+#define FDB_VLAN_EN BIT(6)
+#define FDB_HOST_EN BIT(2)
+#define FDB_PRU1_EN BIT(1)
+#define FDB_PRU0_EN BIT(0)
+#define FDB_EN_ALL (FDB_PRU0_EN | FDB_PRU1_EN | \
+ FDB_HOST_EN | FDB_VLAN_EN)
+
+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_priv *priv, int slice)
+{
+ struct prueth *prueth = priv->prueth;
+ struct regmap *mii_rt = prueth->mii_rt;
+ u32 txcfg_reg, pcnt_reg;
+ u32 txcfg;
+
+ txcfg_reg = (slice == ICSS_MII0) ? PRUSS_MII_RT_TXCFG0 :
+ PRUSS_MII_RT_TXCFG1;
+ pcnt_reg = (slice == ICSS_MII0) ? PRUSS_MII_RT_RX_PCNT0 :
+ PRUSS_MII_RT_RX_PCNT1;
+
+ txcfg = MII_TXCFG_DEFAULT;
+
+ if (prueth->phy_interface == PHY_INTERFACE_MODE_MII && slice == ICSS_MII0)
+ txcfg |= PRUSS_MII_RT_TXCFG_TX_MUX_SEL;
+ else if (prueth->phy_interface != PHY_INTERFACE_MODE_MII && slice == ICSS_MII1)
+ txcfg |= PRUSS_MII_RT_TXCFG_TX_MUX_SEL;
+
+ regmap_write(mii_rt, txcfg_reg, txcfg);
+ regmap_write(mii_rt, pcnt_reg, 0x1);
+}
+
+static void icssg_miig_queues_init(struct prueth_priv *priv, int slice)
+{
+ struct prueth *prueth = priv->prueth;
+ 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;
+
+ /* 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_priv *priv, int speed, int mii)
+{
+ struct prueth *prueth = priv->prueth;
+
+ 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_priv *priv)
+{
+ struct prueth *prueth = priv->prueth;
+ struct icssg_r30_cmd *p;
+ int i;
+
+ p = (struct icssg_r30_cmd *)(prueth->dram[priv->port_id].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_priv *priv)
+{
+ struct prueth *prueth = priv->prueth;
+ const struct icssg_r30_cmd *p;
+ int i;
+ u32 cmd;
+
+ p = (const struct icssg_r30_cmd *)(prueth->dram[priv->port_id].pa + MGR_R30_CMD_OFFSET);
+
+ for (i = 0; i < 4; i++) {
+ cmd = readl(&p->cmd[i]);
+ if (cmd != EMAC_NONE)
+ return 0;
+ }
+
+ return 1;
+}
+
+static int prueth_emac_buffer_setup(struct prueth_priv *priv)
+{
+ struct prueth *prueth = priv->prueth;
+ struct icssg_buffer_pool_cfg *bpool_cfg;
+ struct icssg_rxq_ctx *rxq_ctx;
+ int slice = priv->port_id;
+ u32 addr;
+ int i;
+
+ /* 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;
+ }
+
+ bpool_cfg = (struct icssg_buffer_pool_cfg *)(prueth->dram[priv->port_id].pa + BUFFER_POOL_0_ADDR_OFFSET);
+ /* 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;
+ }
+
+ if (!slice)
+ addr += PRUETH_NUM_BUF_POOLS * PRUETH_EMAC_BUF_POOL_SIZE;
+ else
+ addr += PRUETH_EMAC_RX_CTX_BUF_SIZE * 2;
+
+ rxq_ctx = (struct icssg_rxq_ctx *)(prueth->dram[priv->port_id].pa + HOST_RX_Q_PRE_CONTEXT_OFFSET);
+
+ 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);
+
+ /* Express RX buffer queue */
+ rxq_ctx = (struct icssg_rxq_ctx *)(prueth->dram[priv->port_id].pa + HOST_RX_Q_EXP_CONTEXT_OFFSET);
+ 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);
+
+ return 0;
+}
+
+static void icssg_init_emac_mode(struct prueth *prueth)
+{
+ u8 mac[6] = { 0 };
+
+ regmap_update_bits(prueth->miig_rt, FDB_GEN_CFG1, SMEM_VLAN_OFFSET_MASK, 0);
+ regmap_write(prueth->miig_rt, FDB_GEN_CFG2, 0);
+ /* Clear host MAC address */
+ icssg_class_set_host_mac_addr(prueth->miig_rt, mac);
+}
+
+int icssg_config(struct prueth_priv *priv)
+{
+ struct prueth *prueth = priv->prueth;
+ void *config = (void *)(prueth->dram[priv->port_id].pa + ICSSG_CONFIG_OFFSET);
+ u8 *cfg_byte_ptr = config;
+ struct icssg_flow_cfg *flow_cfg;
+ u32 mask;
+ int ret;
+
+ int slice = priv->port_id;
+
+ icssg_init_emac_mode(prueth);
+
+ memset_io(config, 0, TAS_GATE_MASK_LIST0);
+ icssg_miig_queues_init(priv, slice);
+
+ prueth->speed = SPEED_1000;
+ prueth->duplex = DUPLEX_FULL;
+ if (!phy_interface_is_rgmii(priv->phydev)) {
+ prueth->speed = SPEED_100;
+ prueth->duplex = DUPLEX_FULL;
+ }
+
+ regmap_update_bits(prueth->miig_rt, ICSSG_CFG_OFFSET,
+ ICSSG_CFG_DEFAULT, ICSSG_CFG_DEFAULT);
+ icssg_miig_set_interface_mode(prueth->miig_rt, ICSS_MII0, prueth->phy_interface);
+ icssg_miig_set_interface_mode(prueth->miig_rt, ICSS_MII1, prueth->phy_interface);
+ icssg_config_mii_init(priv, slice);
+
+ icssg_config_ipg(priv, SPEED_1000, slice);
+ icssg_update_rgmii_cfg(prueth->miig_rt, SPEED_1000, true, slice, priv);
+
+ /* 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);
+
+ flow_cfg = config + PSI_L_REGULAR_FLOW_ID_BASE_OFFSET;
+ flow_cfg->rx_base_flow = prueth->dma_rx.id;
+ flow_cfg->mgm_base_flow = 0;
+ *(cfg_byte_ptr + SPL_PKT_DEFAULT_PRIORITY) = 0;
+ *(cfg_byte_ptr + QUEUE_NUM_UNTAGGED) = 0x0;
+
+ ret = prueth_emac_buffer_setup(priv);
+
+ if (ret)
+ return ret;
+
+ emac_r30_cmd_init(priv);
+ return 0;
+}
+
+/* commands to program ICSSG R30 registers */
+static struct icssg_r30_cmd emac_r32_bitmask[] = {
+ {{0xffff0004, 0xffff0100, 0xffff0004, EMAC_NONE}}, /* EMAC_PORT_DISABLE */
+ {{0xfffb0040, 0xfeff0200, 0xfeff0200, EMAC_NONE}}, /* EMAC_PORT_BLOCK */
+ {{0xffbb0000, 0xfcff0000, 0xdcfb0000, 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_priv *priv,
+ enum icssg_port_state_cmd cmd)
+{
+ struct prueth *prueth = priv->prueth;
+ struct icssg_r30_cmd *p;
+ int ret = -ETIMEDOUT;
+ int timeout = 10;
+ int i;
+
+ p = (struct icssg_r30_cmd *)(prueth->dram[priv->port_id].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(priv)) {
+ 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..e2859c7b51
--- /dev/null
+++ b/drivers/net/ti/icssg_config.h
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Texas Instruments ICSSG Ethernet driver
+ *
+ * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://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;
+
+/* Config area lies in shared RAM */
+#define ICSSG_CONFIG_OFFSET_SLICE0 0
+#define ICSSG_CONFIG_OFFSET_SLICE1 0x8000
+
+/* 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 */
+
+/* Used to notify the FW of the current link speed */
+#define PORT_LINK_SPEED_OFFSET 0x00A8
+
+#define FW_LINK_SPEED_1G (0x00)
+#define FW_LINK_SPEED_100M (0x01)
+#define FW_LINK_SPEED_10M (0x02)
+#define FW_LINK_SPEED_HD (0x80)
+
+#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.h b/drivers/net/ti/icssg_prueth.h
new file mode 100644
index 0000000000..33137739a7
--- /dev/null
+++ b/drivers/net/ti/icssg_prueth.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver
+ *
+ * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ */
+
+#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/sizes.h>
+#include <linux/pruss_driver.h>
+#include "icssg_config.h"
+#include "icssg_switch_map.h"
+
+void icssg_class_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac);
+void icssg_class_set_host_mac_addr(struct regmap *miig_rt, 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[PRUETH_NUM_MACS];
+ phys_addr_t tmaddr;
+ struct mii_dev *bus;
+ u32 sram_pa;
+ ofnode eth_node[PRUETH_NUM_MACS];
+ u32 mdio_freq;
+ int phy_interface;
+ struct clk mdiofck;
+ struct dma dma_tx;
+ struct dma dma_rx;
+ struct dma dma_rx_mgm;
+ u32 rx_next;
+ u32 rx_pend;
+ int slice;
+ bool mdio_manual_mode;
+ int speed;
+ int duplex;
+};
+
+struct prueth_priv {
+ struct udevice *dev;
+ struct prueth *prueth;
+ u32 port_id;
+ struct phy_device *phydev;
+ bool has_phy;
+ ofnode phy_node;
+ u32 phy_addr;
+ int phy_interface;
+};
+
+/* config helpers */
+void icssg_config_ipg(struct prueth_priv *priv, int speed, int mii);
+int icssg_config(struct prueth_priv *priv);
+int emac_set_port_state(struct prueth_priv *priv, enum icssg_port_state_cmd cmd);
+
+#endif /* __NET_TI_ICSSG_PRUETH_H */
--
2.34.1
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