root/drivers/net/dsa/microchip/lan937x_reg.h
/* SPDX-License-Identifier: GPL-2.0 */
/* Microchip LAN937X switch register definitions
 * Copyright (C) 2019-2024 Microchip Technology Inc.
 */
#ifndef __LAN937X_REG_H
#define __LAN937X_REG_H

#define PORT_CTRL_ADDR(port, addr)      ((addr) | (((port) + 1)  << 12))

/* 0 - Operation */
#define REG_GLOBAL_CTRL_0               0x0007

#define SW_PHY_REG_BLOCK                BIT(7)
#define SW_FAST_MODE                    BIT(3)
#define SW_FAST_MODE_OVERRIDE           BIT(2)

#define REG_SW_INT_STATUS__4            0x0010
#define REG_SW_INT_MASK__4              0x0014

#define LUE_INT                         BIT(31)
#define TRIG_TS_INT                     BIT(30)
#define APB_TIMEOUT_INT                 BIT(29)
#define OVER_TEMP_INT                   BIT(28)
#define HSR_INT                         BIT(27)
#define PIO_INT                         BIT(26)
#define POR_READY_INT                   BIT(25)

#define SWITCH_INT_MASK                 \
        (LUE_INT | TRIG_TS_INT | APB_TIMEOUT_INT | OVER_TEMP_INT | HSR_INT | \
         PIO_INT | POR_READY_INT)

#define REG_SW_PORT_INT_STATUS__4       0x0018
#define REG_SW_PORT_INT_MASK__4         0x001C

/* 1 - Global */
#define REG_SW_GLOBAL_OUTPUT_CTRL__1    0x0103
#define SW_CLK125_ENB                   BIT(1)
#define SW_CLK25_ENB                    BIT(0)

#define REG_SW_CFG_STRAP_VAL            0x0200
#define SW_CASCADE_ID_CFG               BIT(15)
#define SW_VPHY_ADD_CFG                 BIT(0)

/* 2 - PHY Control */
#define REG_SW_CFG_STRAP_OVR            0x0214
#define SW_VPHY_DISABLE                 BIT(31)

/* 3 - Operation Control */
#define REG_SW_OPERATION                0x0300

#define SW_DOUBLE_TAG                   BIT(7)
#define SW_OVER_TEMP_ENABLE             BIT(2)
#define SW_RESET                        BIT(1)

#define REG_SW_LUE_CTRL_0               0x0310

#define SW_VLAN_ENABLE                  BIT(7)
#define SW_DROP_INVALID_VID             BIT(6)
#define SW_AGE_CNT_M                    GENMASK(5, 3)
#define SW_RESV_MCAST_ENABLE            BIT(2)

#define REG_SW_LUE_CTRL_1               0x0311

#define UNICAST_LEARN_DISABLE           BIT(7)
#define SW_FLUSH_STP_TABLE              BIT(5)
#define SW_FLUSH_MSTP_TABLE             BIT(4)
#define SW_SRC_ADDR_FILTER              BIT(3)
#define SW_AGING_ENABLE                 BIT(2)
#define SW_FAST_AGING                   BIT(1)
#define SW_LINK_AUTO_AGING              BIT(0)

#define REG_SW_LUE_CTRL_2               0x0312

#define SW_AGE_CNT_IN_MICROSEC          BIT(7)

#define REG_SW_AGE_PERIOD__1            0x0313
#define SW_AGE_PERIOD_7_0_M             GENMASK(7, 0)

#define REG_SW_AGE_PERIOD__2            0x0320
#define SW_AGE_PERIOD_19_8_M            GENMASK(19, 8)

#define REG_SW_MAC_CTRL_0               0x0330
#define SW_NEW_BACKOFF                  BIT(7)
#define SW_PAUSE_UNH_MODE               BIT(1)
#define SW_AGGR_BACKOFF                 BIT(0)

#define REG_SW_MAC_CTRL_1               0x0331
#define SW_SHORT_IFG                    BIT(7)
#define MULTICAST_STORM_DISABLE         BIT(6)
#define SW_BACK_PRESSURE                BIT(5)
#define FAIR_FLOW_CTRL                  BIT(4)
#define NO_EXC_COLLISION_DROP           BIT(3)
#define SW_LEGAL_PACKET_DISABLE         BIT(1)
#define SW_PASS_SHORT_FRAME             BIT(0)

#define REG_SW_MAC_CTRL_6               0x0336
#define SW_MIB_COUNTER_FLUSH            BIT(7)
#define SW_MIB_COUNTER_FREEZE           BIT(6)

/* 4 - LUE */
#define REG_SW_ALU_STAT_CTRL__4         0x041C

#define REG_SW_ALU_VAL_B                0x0424
#define ALU_V_OVERRIDE                  BIT(31)
#define ALU_V_USE_FID                   BIT(30)
#define ALU_V_PORT_MAP                  0xFF

/* 7 - VPhy */
#define REG_VPHY_IND_ADDR__2            0x075C
#define REG_VPHY_IND_DATA__2            0x0760

#define REG_VPHY_IND_CTRL__2            0x0768

#define VPHY_IND_WRITE                  BIT(1)
#define VPHY_IND_BUSY                   BIT(0)

#define REG_VPHY_SPECIAL_CTRL__2        0x077C
#define VPHY_SMI_INDIRECT_ENABLE        BIT(15)
#define VPHY_SW_LOOPBACK                BIT(14)
#define VPHY_MDIO_INTERNAL_ENABLE       BIT(13)
#define VPHY_SPI_INDIRECT_ENABLE        BIT(12)
#define VPHY_PORT_MODE_M                0x3
#define VPHY_PORT_MODE_S                8
#define VPHY_MODE_RGMII                 0
#define VPHY_MODE_MII_PHY               1
#define VPHY_MODE_SGMII                 2
#define VPHY_MODE_RMII_PHY              3
#define VPHY_SW_COLLISION_TEST          BIT(7)
#define VPHY_SPEED_DUPLEX_STAT_M        0x7
#define VPHY_SPEED_DUPLEX_STAT_S        2
#define VPHY_SPEED_1000                 BIT(4)
#define VPHY_SPEED_100                  BIT(3)
#define VPHY_FULL_DUPLEX                BIT(2)

/* Port Registers */

/* 0 - Operation */
#define REG_PORT_INT_STATUS             0x001B
#define REG_PORT_INT_MASK               0x001F

#define PORT_TAS_INT                    BIT(5)
#define PORT_QCI_INT                    BIT(4)
#define PORT_SGMII_INT                  BIT(3)
#define PORT_PTP_INT                    BIT(2)
#define PORT_PHY_INT                    BIT(1)
#define PORT_ACL_INT                    BIT(0)

#define PORT_SRC_PHY_INT                1

#define REG_PORT_CTRL_0                 0x0020

#define PORT_MAC_LOOPBACK               BIT(7)
#define PORT_MAC_REMOTE_LOOPBACK        BIT(6)
#define PORT_K2L_INSERT_ENABLE          BIT(5)
#define PORT_K2L_DEBUG_ENABLE           BIT(4)
#define PORT_TAIL_TAG_ENABLE            BIT(2)
#define PORT_QUEUE_SPLIT_ENABLE         0x3

/* 1 - Phy */
#define REG_PORT_T1_PHY_CTRL_BASE       0x0100
#define REG_PORT_TX_PHY_CTRL_BASE       0x0280

/* 3 - xMII */
#define PORT_SGMII_SEL                  BIT(7)
#define PORT_GRXC_ENABLE                BIT(0)

#define PORT_MII_SEL_EDGE               BIT(5)

#define REG_PORT_XMII_CTRL_4            0x0304
#define REG_PORT_XMII_CTRL_5            0x0306

#define PORT_DLL_RESET                  BIT(15)
#define PORT_TUNE_ADJ                   GENMASK(13, 7)

/* 4 - MAC */
#define REG_PORT_MAC_CTRL_0             0x0400
#define PORT_CHECK_LENGTH               BIT(2)
#define PORT_BROADCAST_STORM            BIT(1)
#define PORT_JUMBO_PACKET               BIT(0)

#define REG_PORT_MAC_CTRL_1             0x0401
#define PORT_BACK_PRESSURE              BIT(3)
#define PORT_PASS_ALL                   BIT(0)

#define PORT_MAX_FR_SIZE                0x404
#define FR_MIN_SIZE             1522

/* 8 - Classification and Policing */
#define REG_PORT_MRI_PRIO_CTRL          0x0801
#define PORT_HIGHEST_PRIO               BIT(7)
#define PORT_OR_PRIO                    BIT(6)
#define PORT_MAC_PRIO_ENABLE            BIT(4)
#define PORT_VLAN_PRIO_ENABLE           BIT(3)
#define PORT_802_1P_PRIO_ENABLE         BIT(2)
#define PORT_DIFFSERV_PRIO_ENABLE       BIT(1)
#define PORT_ACL_PRIO_ENABLE            BIT(0)

#define P_PRIO_CTRL                     REG_PORT_MRI_PRIO_CTRL

/* 9 - Shaping */
#define REG_PORT_MTI_CREDIT_INCREMENT   0x091C

/* The port number as per the datasheet */
#define RGMII_2_PORT_NUM                5
#define RGMII_1_PORT_NUM                6

#define LAN937X_RGMII_2_PORT            (RGMII_2_PORT_NUM - 1)
#define LAN937X_RGMII_1_PORT            (RGMII_1_PORT_NUM - 1)

#define RGMII_1_TX_DELAY_2NS            2
#define RGMII_2_TX_DELAY_2NS            0
#define RGMII_1_RX_DELAY_2NS            0x1B
#define RGMII_2_RX_DELAY_2NS            0x14

#define LAN937X_TAG_LEN                 2

#endif