Linux 4.19.133

[linux/fpc-iii.git] / drivers / net / ethernet / stmicro / stmmac / dwmac4.h

/*
 * DWMAC4 Header file.
 *
 * Copyright (C) 2015  STMicroelectronics Ltd
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * Author: Alexandre Torgue <alexandre.torgue@st.com>
 */

#ifndef __DWMAC4_H__
#define __DWMAC4_H__

#include "common.h"

/*  MAC registers */
#define GMAC_CONFIG                     0x00000000
#define GMAC_PACKET_FILTER              0x00000008
#define GMAC_HASH_TAB_0_31              0x00000010
#define GMAC_HASH_TAB_32_63             0x00000014
#define GMAC_RX_FLOW_CTRL               0x00000090
#define GMAC_QX_TX_FLOW_CTRL(x)         (0x70 + x * 4)
#define GMAC_TXQ_PRTY_MAP0              0x98
#define GMAC_TXQ_PRTY_MAP1              0x9C
#define GMAC_RXQ_CTRL0                  0x000000a0
#define GMAC_RXQ_CTRL1                  0x000000a4
#define GMAC_RXQ_CTRL2                  0x000000a8
#define GMAC_RXQ_CTRL3                  0x000000ac
#define GMAC_INT_STATUS                 0x000000b0
#define GMAC_INT_EN                     0x000000b4
#define GMAC_1US_TIC_COUNTER            0x000000dc
#define GMAC_PCS_BASE                   0x000000e0
#define GMAC_PHYIF_CONTROL_STATUS       0x000000f8
#define GMAC_PMT                        0x000000c0
#define GMAC_DEBUG                      0x00000114
#define GMAC_HW_FEATURE0                0x0000011c
#define GMAC_HW_FEATURE1                0x00000120
#define GMAC_HW_FEATURE2                0x00000124
#define GMAC_HW_FEATURE3                0x00000128
#define GMAC_MDIO_ADDR                  0x00000200
#define GMAC_MDIO_DATA                  0x00000204
#define GMAC_ADDR_HIGH(reg)             (0x300 + reg * 8)
#define GMAC_ADDR_LOW(reg)              (0x304 + reg * 8)

/* RX Queues Routing */
#define GMAC_RXQCTRL_AVCPQ_MASK         GENMASK(2, 0)
#define GMAC_RXQCTRL_AVCPQ_SHIFT        0
#define GMAC_RXQCTRL_PTPQ_MASK          GENMASK(6, 4)
#define GMAC_RXQCTRL_PTPQ_SHIFT         4
#define GMAC_RXQCTRL_DCBCPQ_MASK        GENMASK(10, 8)
#define GMAC_RXQCTRL_DCBCPQ_SHIFT       8
#define GMAC_RXQCTRL_UPQ_MASK           GENMASK(14, 12)
#define GMAC_RXQCTRL_UPQ_SHIFT          12
#define GMAC_RXQCTRL_MCBCQ_MASK         GENMASK(18, 16)
#define GMAC_RXQCTRL_MCBCQ_SHIFT        16
#define GMAC_RXQCTRL_MCBCQEN            BIT(20)
#define GMAC_RXQCTRL_MCBCQEN_SHIFT      20
#define GMAC_RXQCTRL_TACPQE             BIT(21)
#define GMAC_RXQCTRL_TACPQE_SHIFT       21

/* MAC Packet Filtering */
#define GMAC_PACKET_FILTER_PR           BIT(0)
#define GMAC_PACKET_FILTER_HMC          BIT(2)
#define GMAC_PACKET_FILTER_PM           BIT(4)

#define GMAC_MAX_PERFECT_ADDRESSES      128

/* MAC RX Queue Enable */
#define GMAC_RX_QUEUE_CLEAR(queue)      ~(GENMASK(1, 0) << ((queue) * 2))
#define GMAC_RX_AV_QUEUE_ENABLE(queue)  BIT((queue) * 2)
#define GMAC_RX_DCB_QUEUE_ENABLE(queue) BIT(((queue) * 2) + 1)

/* MAC Flow Control RX */
#define GMAC_RX_FLOW_CTRL_RFE           BIT(0)

/* RX Queues Priorities */
#define GMAC_RXQCTRL_PSRQX_MASK(x)      GENMASK(7 + ((x) * 8), 0 + ((x) * 8))
#define GMAC_RXQCTRL_PSRQX_SHIFT(x)     ((x) * 8)

/* TX Queues Priorities */
#define GMAC_TXQCTRL_PSTQX_MASK(x)      GENMASK(7 + ((x) * 8), 0 + ((x) * 8))
#define GMAC_TXQCTRL_PSTQX_SHIFT(x)     ((x) * 8)

/* MAC Flow Control TX */
#define GMAC_TX_FLOW_CTRL_TFE           BIT(1)
#define GMAC_TX_FLOW_CTRL_PT_SHIFT      16

/*  MAC Interrupt bitmap*/
#define GMAC_INT_RGSMIIS                BIT(0)
#define GMAC_INT_PCS_LINK               BIT(1)
#define GMAC_INT_PCS_ANE                BIT(2)
#define GMAC_INT_PCS_PHYIS              BIT(3)
#define GMAC_INT_PMT_EN                 BIT(4)
#define GMAC_INT_LPI_EN                 BIT(5)

#define GMAC_PCS_IRQ_DEFAULT    (GMAC_INT_RGSMIIS | GMAC_INT_PCS_LINK | \
                                 GMAC_INT_PCS_ANE)

#define GMAC_INT_DEFAULT_ENABLE (GMAC_INT_PMT_EN | GMAC_INT_LPI_EN)

enum dwmac4_irq_status {
        time_stamp_irq = 0x00001000,
        mmc_rx_csum_offload_irq = 0x00000800,
        mmc_tx_irq = 0x00000400,
        mmc_rx_irq = 0x00000200,
        mmc_irq = 0x00000100,
        lpi_irq = 0x00000020,
        pmt_irq = 0x00000010,
};

/* MAC PMT bitmap */
enum power_event {
        pointer_reset = 0x80000000,
        global_unicast = 0x00000200,
        wake_up_rx_frame = 0x00000040,
        magic_frame = 0x00000020,
        wake_up_frame_en = 0x00000004,
        magic_pkt_en = 0x00000002,
        power_down = 0x00000001,
};

/* Energy Efficient Ethernet (EEE) for GMAC4
 *
 * LPI status, timer and control register offset
 */
#define GMAC4_LPI_CTRL_STATUS   0xd0
#define GMAC4_LPI_TIMER_CTRL    0xd4

/* LPI control and status defines */
#define GMAC4_LPI_CTRL_STATUS_LPITCSE   BIT(21) /* LPI Tx Clock Stop Enable */
#define GMAC4_LPI_CTRL_STATUS_LPITXA    BIT(19) /* Enable LPI TX Automate */
#define GMAC4_LPI_CTRL_STATUS_PLS       BIT(17) /* PHY Link Status */
#define GMAC4_LPI_CTRL_STATUS_LPIEN     BIT(16) /* LPI Enable */
#define GMAC4_LPI_CTRL_STATUS_RLPIEX    BIT(3) /* Receive LPI Exit */
#define GMAC4_LPI_CTRL_STATUS_RLPIEN    BIT(2) /* Receive LPI Entry */
#define GMAC4_LPI_CTRL_STATUS_TLPIEX    BIT(1) /* Transmit LPI Exit */
#define GMAC4_LPI_CTRL_STATUS_TLPIEN    BIT(0) /* Transmit LPI Entry */

/* MAC Debug bitmap */
#define GMAC_DEBUG_TFCSTS_MASK          GENMASK(18, 17)
#define GMAC_DEBUG_TFCSTS_SHIFT         17
#define GMAC_DEBUG_TFCSTS_IDLE          0
#define GMAC_DEBUG_TFCSTS_WAIT          1
#define GMAC_DEBUG_TFCSTS_GEN_PAUSE     2
#define GMAC_DEBUG_TFCSTS_XFER          3
#define GMAC_DEBUG_TPESTS               BIT(16)
#define GMAC_DEBUG_RFCFCSTS_MASK        GENMASK(2, 1)
#define GMAC_DEBUG_RFCFCSTS_SHIFT       1
#define GMAC_DEBUG_RPESTS               BIT(0)

/* MAC config */
#define GMAC_CONFIG_IPC                 BIT(27)
#define GMAC_CONFIG_2K                  BIT(22)
#define GMAC_CONFIG_ACS                 BIT(20)
#define GMAC_CONFIG_BE                  BIT(18)
#define GMAC_CONFIG_JD                  BIT(17)
#define GMAC_CONFIG_JE                  BIT(16)
#define GMAC_CONFIG_PS                  BIT(15)
#define GMAC_CONFIG_FES                 BIT(14)
#define GMAC_CONFIG_DM                  BIT(13)
#define GMAC_CONFIG_DCRS                BIT(9)
#define GMAC_CONFIG_TE                  BIT(1)
#define GMAC_CONFIG_RE                  BIT(0)

/* MAC HW features0 bitmap */
#define GMAC_HW_FEAT_ADDMAC             BIT(18)
#define GMAC_HW_FEAT_RXCOESEL           BIT(16)
#define GMAC_HW_FEAT_TXCOSEL            BIT(14)
#define GMAC_HW_FEAT_EEESEL             BIT(13)
#define GMAC_HW_FEAT_TSSEL              BIT(12)
#define GMAC_HW_FEAT_MMCSEL             BIT(8)
#define GMAC_HW_FEAT_MGKSEL             BIT(7)
#define GMAC_HW_FEAT_RWKSEL             BIT(6)
#define GMAC_HW_FEAT_SMASEL             BIT(5)
#define GMAC_HW_FEAT_VLHASH             BIT(4)
#define GMAC_HW_FEAT_PCSSEL             BIT(3)
#define GMAC_HW_FEAT_HDSEL              BIT(2)
#define GMAC_HW_FEAT_GMIISEL            BIT(1)
#define GMAC_HW_FEAT_MIISEL             BIT(0)

/* MAC HW features1 bitmap */
#define GMAC_HW_FEAT_AVSEL              BIT(20)
#define GMAC_HW_TSOEN                   BIT(18)
#define GMAC_HW_TXFIFOSIZE              GENMASK(10, 6)
#define GMAC_HW_RXFIFOSIZE              GENMASK(4, 0)

/* MAC HW features2 bitmap */
#define GMAC_HW_FEAT_PPSOUTNUM          GENMASK(26, 24)
#define GMAC_HW_FEAT_TXCHCNT            GENMASK(21, 18)
#define GMAC_HW_FEAT_RXCHCNT            GENMASK(15, 12)
#define GMAC_HW_FEAT_TXQCNT             GENMASK(9, 6)
#define GMAC_HW_FEAT_RXQCNT             GENMASK(3, 0)

/* MAC HW features3 bitmap */
#define GMAC_HW_FEAT_ASP                GENMASK(29, 28)
#define GMAC_HW_FEAT_FRPES              GENMASK(14, 13)
#define GMAC_HW_FEAT_FRPBS              GENMASK(12, 11)
#define GMAC_HW_FEAT_FRPSEL             BIT(10)

/* MAC HW ADDR regs */
#define GMAC_HI_DCS                     GENMASK(18, 16)
#define GMAC_HI_DCS_SHIFT               16
#define GMAC_HI_REG_AE                  BIT(31)

/*  MTL registers */
#define MTL_OPERATION_MODE              0x00000c00
#define MTL_FRPE                        BIT(15)
#define MTL_OPERATION_SCHALG_MASK       GENMASK(6, 5)
#define MTL_OPERATION_SCHALG_WRR        (0x0 << 5)
#define MTL_OPERATION_SCHALG_WFQ        (0x1 << 5)
#define MTL_OPERATION_SCHALG_DWRR       (0x2 << 5)
#define MTL_OPERATION_SCHALG_SP         (0x3 << 5)
#define MTL_OPERATION_RAA               BIT(2)
#define MTL_OPERATION_RAA_SP            (0x0 << 2)
#define MTL_OPERATION_RAA_WSP           (0x1 << 2)

#define MTL_INT_STATUS                  0x00000c20
#define MTL_INT_QX(x)                   BIT(x)

#define MTL_RXQ_DMA_MAP0                0x00000c30 /* queue 0 to 3 */
#define MTL_RXQ_DMA_MAP1                0x00000c34 /* queue 4 to 7 */
#define MTL_RXQ_DMA_Q04MDMACH_MASK      GENMASK(3, 0)
#define MTL_RXQ_DMA_Q04MDMACH(x)        ((x) << 0)
#define MTL_RXQ_DMA_QXMDMACH_MASK(x)    GENMASK(11 + (8 * ((x) - 1)), 8 * (x))
#define MTL_RXQ_DMA_QXMDMACH(chan, q)   ((chan) << (8 * (q)))

#define MTL_CHAN_BASE_ADDR              0x00000d00
#define MTL_CHAN_BASE_OFFSET            0x40
#define MTL_CHANX_BASE_ADDR(x)          (MTL_CHAN_BASE_ADDR + \
                                        (x * MTL_CHAN_BASE_OFFSET))

#define MTL_CHAN_TX_OP_MODE(x)          MTL_CHANX_BASE_ADDR(x)
#define MTL_CHAN_TX_DEBUG(x)            (MTL_CHANX_BASE_ADDR(x) + 0x8)
#define MTL_CHAN_INT_CTRL(x)            (MTL_CHANX_BASE_ADDR(x) + 0x2c)
#define MTL_CHAN_RX_OP_MODE(x)          (MTL_CHANX_BASE_ADDR(x) + 0x30)
#define MTL_CHAN_RX_DEBUG(x)            (MTL_CHANX_BASE_ADDR(x) + 0x38)

#define MTL_OP_MODE_RSF                 BIT(5)
#define MTL_OP_MODE_TXQEN_MASK          GENMASK(3, 2)
#define MTL_OP_MODE_TXQEN_AV            BIT(2)
#define MTL_OP_MODE_TXQEN               BIT(3)
#define MTL_OP_MODE_TSF                 BIT(1)

#define MTL_OP_MODE_TQS_MASK            GENMASK(24, 16)
#define MTL_OP_MODE_TQS_SHIFT           16

#define MTL_OP_MODE_TTC_MASK            0x70
#define MTL_OP_MODE_TTC_SHIFT           4

#define MTL_OP_MODE_TTC_32              0
#define MTL_OP_MODE_TTC_64              (1 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_96              (2 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_128             (3 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_192             (4 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_256             (5 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_384             (6 << MTL_OP_MODE_TTC_SHIFT)
#define MTL_OP_MODE_TTC_512             (7 << MTL_OP_MODE_TTC_SHIFT)

#define MTL_OP_MODE_RQS_MASK            GENMASK(29, 20)
#define MTL_OP_MODE_RQS_SHIFT           20

#define MTL_OP_MODE_RFD_MASK            GENMASK(19, 14)
#define MTL_OP_MODE_RFD_SHIFT           14

#define MTL_OP_MODE_RFA_MASK            GENMASK(13, 8)
#define MTL_OP_MODE_RFA_SHIFT           8

#define MTL_OP_MODE_EHFC                BIT(7)

#define MTL_OP_MODE_RTC_MASK            0x18
#define MTL_OP_MODE_RTC_SHIFT           3

#define MTL_OP_MODE_RTC_32              (1 << MTL_OP_MODE_RTC_SHIFT)
#define MTL_OP_MODE_RTC_64              0
#define MTL_OP_MODE_RTC_96              (2 << MTL_OP_MODE_RTC_SHIFT)
#define MTL_OP_MODE_RTC_128             (3 << MTL_OP_MODE_RTC_SHIFT)

/* MTL ETS Control register */
#define MTL_ETS_CTRL_BASE_ADDR          0x00000d10
#define MTL_ETS_CTRL_BASE_OFFSET        0x40
#define MTL_ETSX_CTRL_BASE_ADDR(x)      (MTL_ETS_CTRL_BASE_ADDR + \
                                        ((x) * MTL_ETS_CTRL_BASE_OFFSET))

#define MTL_ETS_CTRL_CC                 BIT(3)
#define MTL_ETS_CTRL_AVALG              BIT(2)

/* MTL Queue Quantum Weight */
#define MTL_TXQ_WEIGHT_BASE_ADDR        0x00000d18
#define MTL_TXQ_WEIGHT_BASE_OFFSET      0x40
#define MTL_TXQX_WEIGHT_BASE_ADDR(x)    (MTL_TXQ_WEIGHT_BASE_ADDR + \
                                        ((x) * MTL_TXQ_WEIGHT_BASE_OFFSET))
#define MTL_TXQ_WEIGHT_ISCQW_MASK       GENMASK(20, 0)

/* MTL sendSlopeCredit register */
#define MTL_SEND_SLP_CRED_BASE_ADDR     0x00000d1c
#define MTL_SEND_SLP_CRED_OFFSET        0x40
#define MTL_SEND_SLP_CREDX_BASE_ADDR(x) (MTL_SEND_SLP_CRED_BASE_ADDR + \
                                        ((x) * MTL_SEND_SLP_CRED_OFFSET))

#define MTL_SEND_SLP_CRED_SSC_MASK      GENMASK(13, 0)

/* MTL hiCredit register */
#define MTL_HIGH_CRED_BASE_ADDR         0x00000d20
#define MTL_HIGH_CRED_OFFSET            0x40
#define MTL_HIGH_CREDX_BASE_ADDR(x)     (MTL_HIGH_CRED_BASE_ADDR + \
                                        ((x) * MTL_HIGH_CRED_OFFSET))

#define MTL_HIGH_CRED_HC_MASK           GENMASK(28, 0)

/* MTL loCredit register */
#define MTL_LOW_CRED_BASE_ADDR          0x00000d24
#define MTL_LOW_CRED_OFFSET             0x40
#define MTL_LOW_CREDX_BASE_ADDR(x)      (MTL_LOW_CRED_BASE_ADDR + \
                                        ((x) * MTL_LOW_CRED_OFFSET))

#define MTL_HIGH_CRED_LC_MASK           GENMASK(28, 0)

/*  MTL debug */
#define MTL_DEBUG_TXSTSFSTS             BIT(5)
#define MTL_DEBUG_TXFSTS                BIT(4)
#define MTL_DEBUG_TWCSTS                BIT(3)

/* MTL debug: Tx FIFO Read Controller Status */
#define MTL_DEBUG_TRCSTS_MASK           GENMASK(2, 1)
#define MTL_DEBUG_TRCSTS_SHIFT          1
#define MTL_DEBUG_TRCSTS_IDLE           0
#define MTL_DEBUG_TRCSTS_READ           1
#define MTL_DEBUG_TRCSTS_TXW            2
#define MTL_DEBUG_TRCSTS_WRITE          3
#define MTL_DEBUG_TXPAUSED              BIT(0)

/* MAC debug: GMII or MII Transmit Protocol Engine Status */
#define MTL_DEBUG_RXFSTS_MASK           GENMASK(5, 4)
#define MTL_DEBUG_RXFSTS_SHIFT          4
#define MTL_DEBUG_RXFSTS_EMPTY          0
#define MTL_DEBUG_RXFSTS_BT             1
#define MTL_DEBUG_RXFSTS_AT             2
#define MTL_DEBUG_RXFSTS_FULL           3
#define MTL_DEBUG_RRCSTS_MASK           GENMASK(2, 1)
#define MTL_DEBUG_RRCSTS_SHIFT          1
#define MTL_DEBUG_RRCSTS_IDLE           0
#define MTL_DEBUG_RRCSTS_RDATA          1
#define MTL_DEBUG_RRCSTS_RSTAT          2
#define MTL_DEBUG_RRCSTS_FLUSH          3
#define MTL_DEBUG_RWCSTS                BIT(0)

/*  MTL interrupt */
#define MTL_RX_OVERFLOW_INT_EN          BIT(24)
#define MTL_RX_OVERFLOW_INT             BIT(16)

/* Default operating mode of the MAC */
#define GMAC_CORE_INIT (GMAC_CONFIG_JD | GMAC_CONFIG_PS | \
                        GMAC_CONFIG_BE | GMAC_CONFIG_DCRS)

/* To dump the core regs excluding  the Address Registers */
#define GMAC_REG_NUM    132

/*  MTL debug */
#define MTL_DEBUG_TXSTSFSTS             BIT(5)
#define MTL_DEBUG_TXFSTS                BIT(4)
#define MTL_DEBUG_TWCSTS                BIT(3)

/* MTL debug: Tx FIFO Read Controller Status */
#define MTL_DEBUG_TRCSTS_MASK           GENMASK(2, 1)
#define MTL_DEBUG_TRCSTS_SHIFT          1
#define MTL_DEBUG_TRCSTS_IDLE           0
#define MTL_DEBUG_TRCSTS_READ           1
#define MTL_DEBUG_TRCSTS_TXW            2
#define MTL_DEBUG_TRCSTS_WRITE          3
#define MTL_DEBUG_TXPAUSED              BIT(0)

/* MAC debug: GMII or MII Transmit Protocol Engine Status */
#define MTL_DEBUG_RXFSTS_MASK           GENMASK(5, 4)
#define MTL_DEBUG_RXFSTS_SHIFT          4
#define MTL_DEBUG_RXFSTS_EMPTY          0
#define MTL_DEBUG_RXFSTS_BT             1
#define MTL_DEBUG_RXFSTS_AT             2
#define MTL_DEBUG_RXFSTS_FULL           3
#define MTL_DEBUG_RRCSTS_MASK           GENMASK(2, 1)
#define MTL_DEBUG_RRCSTS_SHIFT          1
#define MTL_DEBUG_RRCSTS_IDLE           0
#define MTL_DEBUG_RRCSTS_RDATA          1
#define MTL_DEBUG_RRCSTS_RSTAT          2
#define MTL_DEBUG_RRCSTS_FLUSH          3
#define MTL_DEBUG_RWCSTS                BIT(0)

/* SGMII/RGMII status register */
#define GMAC_PHYIF_CTRLSTATUS_TC                BIT(0)
#define GMAC_PHYIF_CTRLSTATUS_LUD               BIT(1)
#define GMAC_PHYIF_CTRLSTATUS_SMIDRXS           BIT(4)
#define GMAC_PHYIF_CTRLSTATUS_LNKMOD            BIT(16)
#define GMAC_PHYIF_CTRLSTATUS_SPEED             GENMASK(18, 17)
#define GMAC_PHYIF_CTRLSTATUS_SPEED_SHIFT       17
#define GMAC_PHYIF_CTRLSTATUS_LNKSTS            BIT(19)
#define GMAC_PHYIF_CTRLSTATUS_JABTO             BIT(20)
#define GMAC_PHYIF_CTRLSTATUS_FALSECARDET       BIT(21)
/* LNKMOD */
#define GMAC_PHYIF_CTRLSTATUS_LNKMOD_MASK       0x1
/* LNKSPEED */
#define GMAC_PHYIF_CTRLSTATUS_SPEED_125         0x2
#define GMAC_PHYIF_CTRLSTATUS_SPEED_25          0x1
#define GMAC_PHYIF_CTRLSTATUS_SPEED_2_5         0x0

extern const struct stmmac_dma_ops dwmac4_dma_ops;
extern const struct stmmac_dma_ops dwmac410_dma_ops;
#endif /* __DWMAC4_H__ */