treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / net / ethernet / microchip / lan743x_main.h

/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (C) 2018 Microchip Technology Inc. */

#ifndef _LAN743X_H
#define _LAN743X_H

#include "lan743x_ptp.h"

#define DRIVER_AUTHOR   "Bryan Whitehead <Bryan.Whitehead@microchip.com>"
#define DRIVER_DESC "LAN743x PCIe Gigabit Ethernet Driver"
#define DRIVER_NAME "lan743x"

/* Register Definitions */
#define ID_REV                          (0x00)
#define ID_REV_ID_MASK_                 (0xFFFF0000)
#define ID_REV_ID_LAN7430_              (0x74300000)
#define ID_REV_ID_LAN7431_              (0x74310000)
#define ID_REV_IS_VALID_CHIP_ID_(id_rev)        \
        (((id_rev) & 0xFFF00000) == 0x74300000)
#define ID_REV_CHIP_REV_MASK_           (0x0000FFFF)
#define ID_REV_CHIP_REV_A0_             (0x00000000)
#define ID_REV_CHIP_REV_B0_             (0x00000010)

#define FPGA_REV                        (0x04)
#define FPGA_REV_GET_MINOR_(fpga_rev)   (((fpga_rev) >> 8) & 0x000000FF)
#define FPGA_REV_GET_MAJOR_(fpga_rev)   ((fpga_rev) & 0x000000FF)

#define HW_CFG                                  (0x010)
#define HW_CFG_RELOAD_TYPE_ALL_                 (0x00000FC0)
#define HW_CFG_EE_OTP_RELOAD_                   BIT(4)
#define HW_CFG_LRST_                            BIT(1)

#define PMT_CTL                                 (0x014)
#define PMT_CTL_ETH_PHY_D3_COLD_OVR_            BIT(27)
#define PMT_CTL_MAC_D3_RX_CLK_OVR_              BIT(25)
#define PMT_CTL_ETH_PHY_EDPD_PLL_CTL_           BIT(24)
#define PMT_CTL_ETH_PHY_D3_OVR_                 BIT(23)
#define PMT_CTL_RX_FCT_RFE_D3_CLK_OVR_          BIT(18)
#define PMT_CTL_GPIO_WAKEUP_EN_                 BIT(15)
#define PMT_CTL_EEE_WAKEUP_EN_                  BIT(13)
#define PMT_CTL_READY_                          BIT(7)
#define PMT_CTL_ETH_PHY_RST_                    BIT(4)
#define PMT_CTL_WOL_EN_                         BIT(3)
#define PMT_CTL_ETH_PHY_WAKE_EN_                BIT(2)
#define PMT_CTL_WUPS_MASK_                      (0x00000003)

#define DP_SEL                          (0x024)
#define DP_SEL_DPRDY_                   BIT(31)
#define DP_SEL_MASK_                    (0x0000001F)
#define DP_SEL_RFE_RAM                  (0x00000001)

#define DP_SEL_VHF_HASH_LEN             (16)
#define DP_SEL_VHF_VLAN_LEN             (128)

#define DP_CMD                          (0x028)
#define DP_CMD_WRITE_                   (0x00000001)

#define DP_ADDR                         (0x02C)

#define DP_DATA_0                       (0x030)

#define E2P_CMD                         (0x040)
#define E2P_CMD_EPC_BUSY_               BIT(31)
#define E2P_CMD_EPC_CMD_WRITE_          (0x30000000)
#define E2P_CMD_EPC_CMD_EWEN_           (0x20000000)
#define E2P_CMD_EPC_CMD_READ_           (0x00000000)
#define E2P_CMD_EPC_TIMEOUT_            BIT(10)
#define E2P_CMD_EPC_ADDR_MASK_          (0x000001FF)

#define E2P_DATA                        (0x044)

#define GPIO_CFG0                       (0x050)
#define GPIO_CFG0_GPIO_DIR_BIT_(bit)    BIT(16 + (bit))
#define GPIO_CFG0_GPIO_DATA_BIT_(bit)   BIT(0 + (bit))

#define GPIO_CFG1                       (0x054)
#define GPIO_CFG1_GPIOEN_BIT_(bit)      BIT(16 + (bit))
#define GPIO_CFG1_GPIOBUF_BIT_(bit)     BIT(0 + (bit))

#define GPIO_CFG2                       (0x058)
#define GPIO_CFG2_1588_POL_BIT_(bit)    BIT(0 + (bit))

#define GPIO_CFG3                       (0x05C)
#define GPIO_CFG3_1588_CH_SEL_BIT_(bit) BIT(16 + (bit))
#define GPIO_CFG3_1588_OE_BIT_(bit)     BIT(0 + (bit))

#define FCT_RX_CTL                      (0xAC)
#define FCT_RX_CTL_EN_(channel)         BIT(28 + (channel))
#define FCT_RX_CTL_DIS_(channel)        BIT(24 + (channel))
#define FCT_RX_CTL_RESET_(channel)      BIT(20 + (channel))

#define FCT_TX_CTL                      (0xC4)
#define FCT_TX_CTL_EN_(channel)         BIT(28 + (channel))
#define FCT_TX_CTL_DIS_(channel)        BIT(24 + (channel))
#define FCT_TX_CTL_RESET_(channel)      BIT(20 + (channel))

#define FCT_FLOW(rx_channel)                    (0xE0 + ((rx_channel) << 2))
#define FCT_FLOW_CTL_OFF_THRESHOLD_             (0x00007F00)
#define FCT_FLOW_CTL_OFF_THRESHOLD_SET_(value)  \
        ((value << 8) & FCT_FLOW_CTL_OFF_THRESHOLD_)
#define FCT_FLOW_CTL_REQ_EN_                    BIT(7)
#define FCT_FLOW_CTL_ON_THRESHOLD_              (0x0000007F)
#define FCT_FLOW_CTL_ON_THRESHOLD_SET_(value)   \
        ((value << 0) & FCT_FLOW_CTL_ON_THRESHOLD_)

#define MAC_CR                          (0x100)
#define MAC_CR_EEE_EN_                  BIT(17)
#define MAC_CR_ADD_                     BIT(12)
#define MAC_CR_ASD_                     BIT(11)
#define MAC_CR_CNTR_RST_                BIT(5)
#define MAC_CR_RST_                     BIT(0)

#define MAC_RX                          (0x104)
#define MAC_RX_MAX_SIZE_SHIFT_          (16)
#define MAC_RX_MAX_SIZE_MASK_           (0x3FFF0000)
#define MAC_RX_RXD_                     BIT(1)
#define MAC_RX_RXEN_                    BIT(0)

#define MAC_TX                          (0x108)
#define MAC_TX_TXD_                     BIT(1)
#define MAC_TX_TXEN_                    BIT(0)

#define MAC_FLOW                        (0x10C)
#define MAC_FLOW_CR_TX_FCEN_            BIT(30)
#define MAC_FLOW_CR_RX_FCEN_            BIT(29)
#define MAC_FLOW_CR_FCPT_MASK_          (0x0000FFFF)

#define MAC_RX_ADDRH                    (0x118)

#define MAC_RX_ADDRL                    (0x11C)

#define MAC_MII_ACC                     (0x120)
#define MAC_MII_ACC_PHY_ADDR_SHIFT_     (11)
#define MAC_MII_ACC_PHY_ADDR_MASK_      (0x0000F800)
#define MAC_MII_ACC_MIIRINDA_SHIFT_     (6)
#define MAC_MII_ACC_MIIRINDA_MASK_      (0x000007C0)
#define MAC_MII_ACC_MII_READ_           (0x00000000)
#define MAC_MII_ACC_MII_WRITE_          (0x00000002)
#define MAC_MII_ACC_MII_BUSY_           BIT(0)

#define MAC_MII_DATA                    (0x124)

#define MAC_EEE_TX_LPI_REQ_DLY_CNT              (0x130)

#define MAC_WUCSR                               (0x140)
#define MAC_WUCSR_RFE_WAKE_EN_                  BIT(14)
#define MAC_WUCSR_PFDA_EN_                      BIT(3)
#define MAC_WUCSR_WAKE_EN_                      BIT(2)
#define MAC_WUCSR_MPEN_                         BIT(1)
#define MAC_WUCSR_BCST_EN_                      BIT(0)

#define MAC_WK_SRC                              (0x144)

#define MAC_WUF_CFG0                    (0x150)
#define MAC_NUM_OF_WUF_CFG              (32)
#define MAC_WUF_CFG_BEGIN               (MAC_WUF_CFG0)
#define MAC_WUF_CFG(index)              (MAC_WUF_CFG_BEGIN + (4 * (index)))
#define MAC_WUF_CFG_EN_                 BIT(31)
#define MAC_WUF_CFG_TYPE_MCAST_         (0x02000000)
#define MAC_WUF_CFG_TYPE_ALL_           (0x01000000)
#define MAC_WUF_CFG_OFFSET_SHIFT_       (16)
#define MAC_WUF_CFG_CRC16_MASK_         (0x0000FFFF)

#define MAC_WUF_MASK0_0                 (0x200)
#define MAC_WUF_MASK0_1                 (0x204)
#define MAC_WUF_MASK0_2                 (0x208)
#define MAC_WUF_MASK0_3                 (0x20C)
#define MAC_WUF_MASK0_BEGIN             (MAC_WUF_MASK0_0)
#define MAC_WUF_MASK1_BEGIN             (MAC_WUF_MASK0_1)
#define MAC_WUF_MASK2_BEGIN             (MAC_WUF_MASK0_2)
#define MAC_WUF_MASK3_BEGIN             (MAC_WUF_MASK0_3)
#define MAC_WUF_MASK0(index)            (MAC_WUF_MASK0_BEGIN + (0x10 * (index)))
#define MAC_WUF_MASK1(index)            (MAC_WUF_MASK1_BEGIN + (0x10 * (index)))
#define MAC_WUF_MASK2(index)            (MAC_WUF_MASK2_BEGIN + (0x10 * (index)))
#define MAC_WUF_MASK3(index)            (MAC_WUF_MASK3_BEGIN + (0x10 * (index)))

/* offset 0x400 - 0x500, x may range from 0 to 32, for a total of 33 entries */
#define RFE_ADDR_FILT_HI(x)             (0x400 + (8 * (x)))
#define RFE_ADDR_FILT_HI_VALID_         BIT(31)

/* offset 0x404 - 0x504, x may range from 0 to 32, for a total of 33 entries */
#define RFE_ADDR_FILT_LO(x)             (0x404 + (8 * (x)))

#define RFE_CTL                         (0x508)
#define RFE_CTL_AB_                     BIT(10)
#define RFE_CTL_AM_                     BIT(9)
#define RFE_CTL_AU_                     BIT(8)
#define RFE_CTL_MCAST_HASH_             BIT(3)
#define RFE_CTL_DA_PERFECT_             BIT(1)

#define RFE_RSS_CFG                     (0x554)
#define RFE_RSS_CFG_UDP_IPV6_EX_        BIT(16)
#define RFE_RSS_CFG_TCP_IPV6_EX_        BIT(15)
#define RFE_RSS_CFG_IPV6_EX_            BIT(14)
#define RFE_RSS_CFG_UDP_IPV6_           BIT(13)
#define RFE_RSS_CFG_TCP_IPV6_           BIT(12)
#define RFE_RSS_CFG_IPV6_               BIT(11)
#define RFE_RSS_CFG_UDP_IPV4_           BIT(10)
#define RFE_RSS_CFG_TCP_IPV4_           BIT(9)
#define RFE_RSS_CFG_IPV4_               BIT(8)
#define RFE_RSS_CFG_VALID_HASH_BITS_    (0x000000E0)
#define RFE_RSS_CFG_RSS_QUEUE_ENABLE_   BIT(2)
#define RFE_RSS_CFG_RSS_HASH_STORE_     BIT(1)
#define RFE_RSS_CFG_RSS_ENABLE_         BIT(0)

#define RFE_HASH_KEY(index)             (0x558 + (index << 2))

#define RFE_INDX(index)                 (0x580 + (index << 2))

#define MAC_WUCSR2                      (0x600)

#define INT_STS                         (0x780)
#define INT_BIT_DMA_RX_(channel)        BIT(24 + (channel))
#define INT_BIT_ALL_RX_                 (0x0F000000)
#define INT_BIT_DMA_TX_(channel)        BIT(16 + (channel))
#define INT_BIT_ALL_TX_                 (0x000F0000)
#define INT_BIT_SW_GP_                  BIT(9)
#define INT_BIT_1588_                   BIT(7)
#define INT_BIT_ALL_OTHER_              (INT_BIT_SW_GP_ | INT_BIT_1588_)
#define INT_BIT_MAS_                    BIT(0)

#define INT_SET                         (0x784)

#define INT_EN_SET                      (0x788)

#define INT_EN_CLR                      (0x78C)

#define INT_STS_R2C                     (0x790)

#define INT_VEC_EN_SET                  (0x794)
#define INT_VEC_EN_CLR                  (0x798)
#define INT_VEC_EN_AUTO_CLR             (0x79C)
#define INT_VEC_EN_(vector_index)       BIT(0 + vector_index)

#define INT_VEC_MAP0                    (0x7A0)
#define INT_VEC_MAP0_RX_VEC_(channel, vector)   \
        (((u32)(vector)) << ((channel) << 2))

#define INT_VEC_MAP1                    (0x7A4)
#define INT_VEC_MAP1_TX_VEC_(channel, vector)   \
        (((u32)(vector)) << ((channel) << 2))

#define INT_VEC_MAP2                    (0x7A8)

#define INT_MOD_MAP0                    (0x7B0)

#define INT_MOD_MAP1                    (0x7B4)

#define INT_MOD_MAP2                    (0x7B8)

#define INT_MOD_CFG0                    (0x7C0)
#define INT_MOD_CFG1                    (0x7C4)
#define INT_MOD_CFG2                    (0x7C8)
#define INT_MOD_CFG3                    (0x7CC)
#define INT_MOD_CFG4                    (0x7D0)
#define INT_MOD_CFG5                    (0x7D4)
#define INT_MOD_CFG6                    (0x7D8)
#define INT_MOD_CFG7                    (0x7DC)

#define PTP_CMD_CTL                                     (0x0A00)
#define PTP_CMD_CTL_PTP_CLK_STP_NSEC_                   BIT(6)
#define PTP_CMD_CTL_PTP_CLOCK_STEP_SEC_                 BIT(5)
#define PTP_CMD_CTL_PTP_CLOCK_LOAD_                     BIT(4)
#define PTP_CMD_CTL_PTP_CLOCK_READ_                     BIT(3)
#define PTP_CMD_CTL_PTP_ENABLE_                         BIT(2)
#define PTP_CMD_CTL_PTP_DISABLE_                        BIT(1)
#define PTP_CMD_CTL_PTP_RESET_                          BIT(0)
#define PTP_GENERAL_CONFIG                              (0x0A04)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_(channel) \
        (0x7 << (1 + ((channel) << 2)))
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_   (0)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_    (1)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_   (2)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_     (3)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_    (4)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_   (5)
#define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_SET_(channel, value) \
        (((value) & 0x7) << (1 + ((channel) << 2)))
#define PTP_GENERAL_CONFIG_RELOAD_ADD_X_(channel)       (BIT((channel) << 2))

#define PTP_INT_STS                             (0x0A08)
#define PTP_INT_EN_SET                          (0x0A0C)
#define PTP_INT_EN_CLR                          (0x0A10)
#define PTP_INT_BIT_TX_SWTS_ERR_                BIT(13)
#define PTP_INT_BIT_TX_TS_                      BIT(12)
#define PTP_INT_BIT_TIMER_B_                    BIT(1)
#define PTP_INT_BIT_TIMER_A_                    BIT(0)

#define PTP_CLOCK_SEC                           (0x0A14)
#define PTP_CLOCK_NS                            (0x0A18)
#define PTP_CLOCK_SUBNS                         (0x0A1C)
#define PTP_CLOCK_RATE_ADJ                      (0x0A20)
#define PTP_CLOCK_RATE_ADJ_DIR_                 BIT(31)
#define PTP_CLOCK_STEP_ADJ                      (0x0A2C)
#define PTP_CLOCK_STEP_ADJ_DIR_                 BIT(31)
#define PTP_CLOCK_STEP_ADJ_VALUE_MASK_          (0x3FFFFFFF)
#define PTP_CLOCK_TARGET_SEC_X(channel)         (0x0A30 + ((channel) << 4))
#define PTP_CLOCK_TARGET_NS_X(channel)          (0x0A34 + ((channel) << 4))
#define PTP_CLOCK_TARGET_RELOAD_SEC_X(channel)  (0x0A38 + ((channel) << 4))
#define PTP_CLOCK_TARGET_RELOAD_NS_X(channel)   (0x0A3C + ((channel) << 4))
#define PTP_LATENCY                             (0x0A5C)
#define PTP_LATENCY_TX_SET_(tx_latency)         (((u32)(tx_latency)) << 16)
#define PTP_LATENCY_RX_SET_(rx_latency)         \
        (((u32)(rx_latency)) & 0x0000FFFF)
#define PTP_CAP_INFO                            (0x0A60)
#define PTP_CAP_INFO_TX_TS_CNT_GET_(reg_val)    (((reg_val) & 0x00000070) >> 4)

#define PTP_TX_MOD                              (0x0AA4)
#define PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_       (0x10000000)

#define PTP_TX_MOD2                             (0x0AA8)
#define PTP_TX_MOD2_TX_PTP_CLR_UDPV4_CHKSUM_    (0x00000001)

#define PTP_TX_EGRESS_SEC                       (0x0AAC)
#define PTP_TX_EGRESS_NS                        (0x0AB0)
#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_    (0xC0000000)
#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_    (0x00000000)
#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_      (0x40000000)
#define PTP_TX_EGRESS_NS_TS_NS_MASK_            (0x3FFFFFFF)

#define PTP_TX_MSG_HEADER                       (0x0AB4)
#define PTP_TX_MSG_HEADER_MSG_TYPE_             (0x000F0000)
#define PTP_TX_MSG_HEADER_MSG_TYPE_SYNC_        (0x00000000)

#define DMAC_CFG                                (0xC00)
#define DMAC_CFG_COAL_EN_                       BIT(16)
#define DMAC_CFG_CH_ARB_SEL_RX_HIGH_            (0x00000000)
#define DMAC_CFG_MAX_READ_REQ_MASK_             (0x00000070)
#define DMAC_CFG_MAX_READ_REQ_SET_(val) \
        ((((u32)(val)) << 4) & DMAC_CFG_MAX_READ_REQ_MASK_)
#define DMAC_CFG_MAX_DSPACE_16_                 (0x00000000)
#define DMAC_CFG_MAX_DSPACE_32_                 (0x00000001)
#define DMAC_CFG_MAX_DSPACE_64_                 BIT(1)
#define DMAC_CFG_MAX_DSPACE_128_                (0x00000003)

#define DMAC_COAL_CFG                           (0xC04)
#define DMAC_COAL_CFG_TIMER_LIMIT_MASK_         (0xFFF00000)
#define DMAC_COAL_CFG_TIMER_LIMIT_SET_(val)     \
        ((((u32)(val)) << 20) & DMAC_COAL_CFG_TIMER_LIMIT_MASK_)
#define DMAC_COAL_CFG_TIMER_TX_START_           BIT(19)
#define DMAC_COAL_CFG_FLUSH_INTS_               BIT(18)
#define DMAC_COAL_CFG_INT_EXIT_COAL_            BIT(17)
#define DMAC_COAL_CFG_CSR_EXIT_COAL_            BIT(16)
#define DMAC_COAL_CFG_TX_THRES_MASK_            (0x0000FF00)
#define DMAC_COAL_CFG_TX_THRES_SET_(val)        \
        ((((u32)(val)) << 8) & DMAC_COAL_CFG_TX_THRES_MASK_)
#define DMAC_COAL_CFG_RX_THRES_MASK_            (0x000000FF)
#define DMAC_COAL_CFG_RX_THRES_SET_(val)        \
        (((u32)(val)) & DMAC_COAL_CFG_RX_THRES_MASK_)

#define DMAC_OBFF_CFG                           (0xC08)
#define DMAC_OBFF_TX_THRES_MASK_                (0x0000FF00)
#define DMAC_OBFF_TX_THRES_SET_(val)    \
        ((((u32)(val)) << 8) & DMAC_OBFF_TX_THRES_MASK_)
#define DMAC_OBFF_RX_THRES_MASK_                (0x000000FF)
#define DMAC_OBFF_RX_THRES_SET_(val)    \
        (((u32)(val)) & DMAC_OBFF_RX_THRES_MASK_)

#define DMAC_CMD                                (0xC0C)
#define DMAC_CMD_SWR_                           BIT(31)
#define DMAC_CMD_TX_SWR_(channel)               BIT(24 + (channel))
#define DMAC_CMD_START_T_(channel)              BIT(20 + (channel))
#define DMAC_CMD_STOP_T_(channel)               BIT(16 + (channel))
#define DMAC_CMD_RX_SWR_(channel)               BIT(8 + (channel))
#define DMAC_CMD_START_R_(channel)              BIT(4 + (channel))
#define DMAC_CMD_STOP_R_(channel)               BIT(0 + (channel))

#define DMAC_INT_STS                            (0xC10)
#define DMAC_INT_EN_SET                         (0xC14)
#define DMAC_INT_EN_CLR                         (0xC18)
#define DMAC_INT_BIT_RXFRM_(channel)            BIT(16 + (channel))
#define DMAC_INT_BIT_TX_IOC_(channel)           BIT(0 + (channel))

#define RX_CFG_A(channel)                       (0xC40 + ((channel) << 6))
#define RX_CFG_A_RX_WB_ON_INT_TMR_              BIT(30)
#define RX_CFG_A_RX_WB_THRES_MASK_              (0x1F000000)
#define RX_CFG_A_RX_WB_THRES_SET_(val)  \
        ((((u32)(val)) << 24) & RX_CFG_A_RX_WB_THRES_MASK_)
#define RX_CFG_A_RX_PF_THRES_MASK_              (0x001F0000)
#define RX_CFG_A_RX_PF_THRES_SET_(val)  \
        ((((u32)(val)) << 16) & RX_CFG_A_RX_PF_THRES_MASK_)
#define RX_CFG_A_RX_PF_PRI_THRES_MASK_          (0x00001F00)
#define RX_CFG_A_RX_PF_PRI_THRES_SET_(val)      \
        ((((u32)(val)) << 8) & RX_CFG_A_RX_PF_PRI_THRES_MASK_)
#define RX_CFG_A_RX_HP_WB_EN_                   BIT(5)

#define RX_CFG_B(channel)                       (0xC44 + ((channel) << 6))
#define RX_CFG_B_TS_ALL_RX_                     BIT(29)
#define RX_CFG_B_RX_PAD_MASK_                   (0x03000000)
#define RX_CFG_B_RX_PAD_0_                      (0x00000000)
#define RX_CFG_B_RX_PAD_2_                      (0x02000000)
#define RX_CFG_B_RDMABL_512_                    (0x00040000)
#define RX_CFG_B_RX_RING_LEN_MASK_              (0x0000FFFF)

#define RX_BASE_ADDRH(channel)                  (0xC48 + ((channel) << 6))

#define RX_BASE_ADDRL(channel)                  (0xC4C + ((channel) << 6))

#define RX_HEAD_WRITEBACK_ADDRH(channel)        (0xC50 + ((channel) << 6))

#define RX_HEAD_WRITEBACK_ADDRL(channel)        (0xC54 + ((channel) << 6))

#define RX_HEAD(channel)                        (0xC58 + ((channel) << 6))

#define RX_TAIL(channel)                        (0xC5C + ((channel) << 6))
#define RX_TAIL_SET_TOP_INT_EN_                 BIT(30)
#define RX_TAIL_SET_TOP_INT_VEC_EN_             BIT(29)

#define RX_CFG_C(channel)                       (0xC64 + ((channel) << 6))
#define RX_CFG_C_RX_TOP_INT_EN_AUTO_CLR_        BIT(6)
#define RX_CFG_C_RX_INT_EN_R2C_                 BIT(4)
#define RX_CFG_C_RX_DMA_INT_STS_AUTO_CLR_       BIT(3)
#define RX_CFG_C_RX_INT_STS_R2C_MODE_MASK_      (0x00000007)

#define TX_CFG_A(channel)                       (0xD40 + ((channel) << 6))
#define TX_CFG_A_TX_HP_WB_ON_INT_TMR_           BIT(30)
#define TX_CFG_A_TX_TMR_HPWB_SEL_IOC_           (0x10000000)
#define TX_CFG_A_TX_PF_THRES_MASK_              (0x001F0000)
#define TX_CFG_A_TX_PF_THRES_SET_(value)        \
        ((((u32)(value)) << 16) & TX_CFG_A_TX_PF_THRES_MASK_)
#define TX_CFG_A_TX_PF_PRI_THRES_MASK_          (0x00001F00)
#define TX_CFG_A_TX_PF_PRI_THRES_SET_(value)    \
        ((((u32)(value)) << 8) & TX_CFG_A_TX_PF_PRI_THRES_MASK_)
#define TX_CFG_A_TX_HP_WB_EN_                   BIT(5)
#define TX_CFG_A_TX_HP_WB_THRES_MASK_           (0x0000000F)
#define TX_CFG_A_TX_HP_WB_THRES_SET_(value)     \
        (((u32)(value)) & TX_CFG_A_TX_HP_WB_THRES_MASK_)

#define TX_CFG_B(channel)                       (0xD44 + ((channel) << 6))
#define TX_CFG_B_TDMABL_512_                    (0x00040000)
#define TX_CFG_B_TX_RING_LEN_MASK_              (0x0000FFFF)

#define TX_BASE_ADDRH(channel)                  (0xD48 + ((channel) << 6))

#define TX_BASE_ADDRL(channel)                  (0xD4C + ((channel) << 6))

#define TX_HEAD_WRITEBACK_ADDRH(channel)        (0xD50 + ((channel) << 6))

#define TX_HEAD_WRITEBACK_ADDRL(channel)        (0xD54 + ((channel) << 6))

#define TX_HEAD(channel)                        (0xD58 + ((channel) << 6))

#define TX_TAIL(channel)                        (0xD5C + ((channel) << 6))
#define TX_TAIL_SET_DMAC_INT_EN_                BIT(31)
#define TX_TAIL_SET_TOP_INT_EN_                 BIT(30)
#define TX_TAIL_SET_TOP_INT_VEC_EN_             BIT(29)

#define TX_CFG_C(channel)                       (0xD64 + ((channel) << 6))
#define TX_CFG_C_TX_TOP_INT_EN_AUTO_CLR_        BIT(6)
#define TX_CFG_C_TX_DMA_INT_EN_AUTO_CLR_        BIT(5)
#define TX_CFG_C_TX_INT_EN_R2C_                 BIT(4)
#define TX_CFG_C_TX_DMA_INT_STS_AUTO_CLR_       BIT(3)
#define TX_CFG_C_TX_INT_STS_R2C_MODE_MASK_      (0x00000007)

#define OTP_PWR_DN                              (0x1000)
#define OTP_PWR_DN_PWRDN_N_                     BIT(0)

#define OTP_ADDR_HIGH                           (0x1004)
#define OTP_ADDR_LOW                            (0x1008)

#define OTP_PRGM_DATA                           (0x1010)

#define OTP_PRGM_MODE                           (0x1014)
#define OTP_PRGM_MODE_BYTE_                     BIT(0)

#define OTP_READ_DATA                           (0x1018)

#define OTP_FUNC_CMD                            (0x1020)
#define OTP_FUNC_CMD_READ_                      BIT(0)

#define OTP_TST_CMD                             (0x1024)
#define OTP_TST_CMD_PRGVRFY_                    BIT(3)

#define OTP_CMD_GO                              (0x1028)
#define OTP_CMD_GO_GO_                          BIT(0)

#define OTP_STATUS                              (0x1030)
#define OTP_STATUS_BUSY_                        BIT(0)

/* MAC statistics registers */
#define STAT_RX_FCS_ERRORS                      (0x1200)
#define STAT_RX_ALIGNMENT_ERRORS                (0x1204)
#define STAT_RX_FRAGMENT_ERRORS                 (0x1208)
#define STAT_RX_JABBER_ERRORS                   (0x120C)
#define STAT_RX_UNDERSIZE_FRAME_ERRORS          (0x1210)
#define STAT_RX_OVERSIZE_FRAME_ERRORS           (0x1214)
#define STAT_RX_DROPPED_FRAMES                  (0x1218)
#define STAT_RX_UNICAST_BYTE_COUNT              (0x121C)
#define STAT_RX_BROADCAST_BYTE_COUNT            (0x1220)
#define STAT_RX_MULTICAST_BYTE_COUNT            (0x1224)
#define STAT_RX_UNICAST_FRAMES                  (0x1228)
#define STAT_RX_BROADCAST_FRAMES                (0x122C)
#define STAT_RX_MULTICAST_FRAMES                (0x1230)
#define STAT_RX_PAUSE_FRAMES                    (0x1234)
#define STAT_RX_64_BYTE_FRAMES                  (0x1238)
#define STAT_RX_65_127_BYTE_FRAMES              (0x123C)
#define STAT_RX_128_255_BYTE_FRAMES             (0x1240)
#define STAT_RX_256_511_BYTES_FRAMES            (0x1244)
#define STAT_RX_512_1023_BYTE_FRAMES            (0x1248)
#define STAT_RX_1024_1518_BYTE_FRAMES           (0x124C)
#define STAT_RX_GREATER_1518_BYTE_FRAMES        (0x1250)
#define STAT_RX_TOTAL_FRAMES                    (0x1254)
#define STAT_EEE_RX_LPI_TRANSITIONS             (0x1258)
#define STAT_EEE_RX_LPI_TIME                    (0x125C)
#define STAT_RX_COUNTER_ROLLOVER_STATUS         (0x127C)

#define STAT_TX_FCS_ERRORS                      (0x1280)
#define STAT_TX_EXCESS_DEFERRAL_ERRORS          (0x1284)
#define STAT_TX_CARRIER_ERRORS                  (0x1288)
#define STAT_TX_BAD_BYTE_COUNT                  (0x128C)
#define STAT_TX_SINGLE_COLLISIONS               (0x1290)
#define STAT_TX_MULTIPLE_COLLISIONS             (0x1294)
#define STAT_TX_EXCESSIVE_COLLISION             (0x1298)
#define STAT_TX_LATE_COLLISIONS                 (0x129C)
#define STAT_TX_UNICAST_BYTE_COUNT              (0x12A0)
#define STAT_TX_BROADCAST_BYTE_COUNT            (0x12A4)
#define STAT_TX_MULTICAST_BYTE_COUNT            (0x12A8)
#define STAT_TX_UNICAST_FRAMES                  (0x12AC)
#define STAT_TX_BROADCAST_FRAMES                (0x12B0)
#define STAT_TX_MULTICAST_FRAMES                (0x12B4)
#define STAT_TX_PAUSE_FRAMES                    (0x12B8)
#define STAT_TX_64_BYTE_FRAMES                  (0x12BC)
#define STAT_TX_65_127_BYTE_FRAMES              (0x12C0)
#define STAT_TX_128_255_BYTE_FRAMES             (0x12C4)
#define STAT_TX_256_511_BYTES_FRAMES            (0x12C8)
#define STAT_TX_512_1023_BYTE_FRAMES            (0x12CC)
#define STAT_TX_1024_1518_BYTE_FRAMES           (0x12D0)
#define STAT_TX_GREATER_1518_BYTE_FRAMES        (0x12D4)
#define STAT_TX_TOTAL_FRAMES                    (0x12D8)
#define STAT_EEE_TX_LPI_TRANSITIONS             (0x12DC)
#define STAT_EEE_TX_LPI_TIME                    (0x12E0)
#define STAT_TX_COUNTER_ROLLOVER_STATUS         (0x12FC)

/* End of Register definitions */

#define LAN743X_MAX_RX_CHANNELS         (4)
#define LAN743X_MAX_TX_CHANNELS         (1)
struct lan743x_adapter;

#define LAN743X_USED_RX_CHANNELS        (4)
#define LAN743X_USED_TX_CHANNELS        (1)
#define LAN743X_INT_MOD (400)

#if (LAN743X_USED_RX_CHANNELS > LAN743X_MAX_RX_CHANNELS)
#error Invalid LAN743X_USED_RX_CHANNELS
#endif
#if (LAN743X_USED_TX_CHANNELS > LAN743X_MAX_TX_CHANNELS)
#error Invalid LAN743X_USED_TX_CHANNELS
#endif

/* PCI */
/* SMSC acquired EFAR late 1990's, MCHP acquired SMSC 2012 */
#define PCI_VENDOR_ID_SMSC              PCI_VENDOR_ID_EFAR
#define PCI_DEVICE_ID_SMSC_LAN7430      (0x7430)
#define PCI_DEVICE_ID_SMSC_LAN7431      (0x7431)

#define PCI_CONFIG_LENGTH               (0x1000)

/* CSR */
#define CSR_LENGTH                                      (0x2000)

#define LAN743X_CSR_FLAG_IS_A0                          BIT(0)
#define LAN743X_CSR_FLAG_IS_B0                          BIT(1)
#define LAN743X_CSR_FLAG_SUPPORTS_INTR_AUTO_SET_CLR     BIT(8)

struct lan743x_csr {
        u32 flags;
        u8 __iomem *csr_address;
        u32 id_rev;
        u32 fpga_rev;
};

/* INTERRUPTS */
typedef void(*lan743x_vector_handler)(void *context, u32 int_sts, u32 flags);

#define LAN743X_VECTOR_FLAG_IRQ_SHARED                  BIT(0)
#define LAN743X_VECTOR_FLAG_SOURCE_STATUS_READ          BIT(1)
#define LAN743X_VECTOR_FLAG_SOURCE_STATUS_R2C           BIT(2)
#define LAN743X_VECTOR_FLAG_SOURCE_STATUS_W2C           BIT(3)
#define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_CHECK         BIT(4)
#define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_CLEAR         BIT(5)
#define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_R2C           BIT(6)
#define LAN743X_VECTOR_FLAG_MASTER_ENABLE_CLEAR         BIT(7)
#define LAN743X_VECTOR_FLAG_MASTER_ENABLE_SET           BIT(8)
#define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_ISR_CLEAR     BIT(9)
#define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_ISR_SET       BIT(10)
#define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_CLEAR    BIT(11)
#define LAN743X_VECTOR_FLAG_VECTOR_ENABLE_AUTO_SET      BIT(12)
#define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_CLEAR    BIT(13)
#define LAN743X_VECTOR_FLAG_SOURCE_ENABLE_AUTO_SET      BIT(14)
#define LAN743X_VECTOR_FLAG_SOURCE_STATUS_AUTO_CLEAR    BIT(15)

struct lan743x_vector {
        int                     irq;
        u32                     flags;
        struct lan743x_adapter  *adapter;
        int                     vector_index;
        u32                     int_mask;
        lan743x_vector_handler  handler;
        void                    *context;
};

#define LAN743X_MAX_VECTOR_COUNT        (8)

struct lan743x_intr {
        int                     flags;

        unsigned int            irq;

        struct lan743x_vector   vector_list[LAN743X_MAX_VECTOR_COUNT];
        int                     number_of_vectors;
        bool                    using_vectors;

        int                     software_isr_flag;
};

#define LAN743X_MAX_FRAME_SIZE                  (9 * 1024)

/* PHY */
struct lan743x_phy {
        bool    fc_autoneg;
        u8      fc_request_control;
};

/* TX */
struct lan743x_tx_descriptor;
struct lan743x_tx_buffer_info;

#define GPIO_QUEUE_STARTED              (0)
#define GPIO_TX_FUNCTION                (1)
#define GPIO_TX_COMPLETION              (2)
#define GPIO_TX_FRAGMENT                (3)

#define TX_FRAME_FLAG_IN_PROGRESS       BIT(0)

#define TX_TS_FLAG_TIMESTAMPING_ENABLED BIT(0)
#define TX_TS_FLAG_ONE_STEP_SYNC        BIT(1)

struct lan743x_tx {
        struct lan743x_adapter *adapter;
        u32     ts_flags;
        u32     vector_flags;
        int     channel_number;

        int     ring_size;
        size_t  ring_allocation_size;
        struct lan743x_tx_descriptor *ring_cpu_ptr;
        dma_addr_t ring_dma_ptr;
        /* ring_lock: used to prevent concurrent access to tx ring */
        spinlock_t ring_lock;
        u32             frame_flags;
        u32             frame_first;
        u32             frame_data0;
        u32             frame_tail;

        struct lan743x_tx_buffer_info *buffer_info;

        u32             *head_cpu_ptr;
        dma_addr_t      head_dma_ptr;
        int             last_head;
        int             last_tail;

        struct napi_struct napi;

        struct sk_buff *overflow_skb;
};

void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx,
                                      bool enable_timestamping,
                                      bool enable_onestep_sync);

/* RX */
struct lan743x_rx_descriptor;
struct lan743x_rx_buffer_info;

struct lan743x_rx {
        struct lan743x_adapter *adapter;
        u32     vector_flags;
        int     channel_number;

        int     ring_size;
        size_t  ring_allocation_size;
        struct lan743x_rx_descriptor *ring_cpu_ptr;
        dma_addr_t ring_dma_ptr;

        struct lan743x_rx_buffer_info *buffer_info;

        u32             *head_cpu_ptr;
        dma_addr_t      head_dma_ptr;
        u32             last_head;
        u32             last_tail;

        struct napi_struct napi;

        u32             frame_count;
};

struct lan743x_adapter {
        struct net_device       *netdev;
        struct mii_bus          *mdiobus;
        int                     msg_enable;
#ifdef CONFIG_PM
        u32                     wolopts;
#endif
        struct pci_dev          *pdev;
        struct lan743x_csr      csr;
        struct lan743x_intr     intr;

        /* lock, used to prevent concurrent access to data port */
        struct mutex            dp_lock;

        struct lan743x_gpio     gpio;
        struct lan743x_ptp      ptp;

        u8                      mac_address[ETH_ALEN];

        struct lan743x_phy      phy;
        struct lan743x_tx       tx[LAN743X_MAX_TX_CHANNELS];
        struct lan743x_rx       rx[LAN743X_MAX_RX_CHANNELS];

#define LAN743X_ADAPTER_FLAG_OTP                BIT(0)
        u32                     flags;
};

#define LAN743X_COMPONENT_FLAG_RX(channel)  BIT(20 + (channel))

#define INTR_FLAG_IRQ_REQUESTED(vector_index)   BIT(0 + vector_index)
#define INTR_FLAG_MSI_ENABLED                   BIT(8)
#define INTR_FLAG_MSIX_ENABLED                  BIT(9)

#define MAC_MII_READ            1
#define MAC_MII_WRITE           0

#define PHY_FLAG_OPENED     BIT(0)
#define PHY_FLAG_ATTACHED   BIT(1)

#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
#define DMA_ADDR_HIGH32(dma_addr)   ((u32)(((dma_addr) >> 32) & 0xFFFFFFFF))
#else
#define DMA_ADDR_HIGH32(dma_addr)   ((u32)(0))
#endif
#define DMA_ADDR_LOW32(dma_addr) ((u32)((dma_addr) & 0xFFFFFFFF))
#define DMA_DESCRIPTOR_SPACING_16       (16)
#define DMA_DESCRIPTOR_SPACING_32       (32)
#define DMA_DESCRIPTOR_SPACING_64       (64)
#define DMA_DESCRIPTOR_SPACING_128      (128)
#define DEFAULT_DMA_DESCRIPTOR_SPACING  (L1_CACHE_BYTES)

#define DMAC_CHANNEL_STATE_SET(start_bit, stop_bit) \
        (((start_bit) ? 2 : 0) | ((stop_bit) ? 1 : 0))
#define DMAC_CHANNEL_STATE_INITIAL      DMAC_CHANNEL_STATE_SET(0, 0)
#define DMAC_CHANNEL_STATE_STARTED      DMAC_CHANNEL_STATE_SET(1, 0)
#define DMAC_CHANNEL_STATE_STOP_PENDING DMAC_CHANNEL_STATE_SET(1, 1)
#define DMAC_CHANNEL_STATE_STOPPED      DMAC_CHANNEL_STATE_SET(0, 1)

/* TX Descriptor bits */
#define TX_DESC_DATA0_DTYPE_MASK_               (0xC0000000)
#define TX_DESC_DATA0_DTYPE_DATA_               (0x00000000)
#define TX_DESC_DATA0_DTYPE_EXT_                (0x40000000)
#define TX_DESC_DATA0_FS_                       (0x20000000)
#define TX_DESC_DATA0_LS_                       (0x10000000)
#define TX_DESC_DATA0_EXT_                      (0x08000000)
#define TX_DESC_DATA0_IOC_                      (0x04000000)
#define TX_DESC_DATA0_ICE_                      (0x00400000)
#define TX_DESC_DATA0_IPE_                      (0x00200000)
#define TX_DESC_DATA0_TPE_                      (0x00100000)
#define TX_DESC_DATA0_FCS_                      (0x00020000)
#define TX_DESC_DATA0_TSE_                      (0x00010000)
#define TX_DESC_DATA0_BUF_LENGTH_MASK_          (0x0000FFFF)
#define TX_DESC_DATA0_EXT_LSO_                  (0x00200000)
#define TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_      (0x000FFFFF)
#define TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_    (0x3FFF0000)

struct lan743x_tx_descriptor {
        u32     data0;
        u32     data1;
        u32     data2;
        u32     data3;
} __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);

#define TX_BUFFER_INFO_FLAG_ACTIVE              BIT(0)
#define TX_BUFFER_INFO_FLAG_TIMESTAMP_REQUESTED BIT(1)
#define TX_BUFFER_INFO_FLAG_IGNORE_SYNC         BIT(2)
#define TX_BUFFER_INFO_FLAG_SKB_FRAGMENT        BIT(3)
struct lan743x_tx_buffer_info {
        int flags;
        struct sk_buff *skb;
        dma_addr_t      dma_ptr;
        unsigned int    buffer_length;
};

#define LAN743X_TX_RING_SIZE    (50)

/* OWN bit is set. ie, Descs are owned by RX DMAC */
#define RX_DESC_DATA0_OWN_                (0x00008000)
/* OWN bit is clear. ie, Descs are owned by host */
#define RX_DESC_DATA0_FS_                 (0x80000000)
#define RX_DESC_DATA0_LS_                 (0x40000000)
#define RX_DESC_DATA0_FRAME_LENGTH_MASK_  (0x3FFF0000)
#define RX_DESC_DATA0_FRAME_LENGTH_GET_(data0)  \
        (((data0) & RX_DESC_DATA0_FRAME_LENGTH_MASK_) >> 16)
#define RX_DESC_DATA0_EXT_                (0x00004000)
#define RX_DESC_DATA0_BUF_LENGTH_MASK_    (0x00003FFF)
#define RX_DESC_DATA2_TS_NS_MASK_         (0x3FFFFFFF)

#if ((NET_IP_ALIGN != 0) && (NET_IP_ALIGN != 2))
#error NET_IP_ALIGN must be 0 or 2
#endif

#define RX_HEAD_PADDING         NET_IP_ALIGN

struct lan743x_rx_descriptor {
        u32     data0;
        u32     data1;
        u32     data2;
        u32     data3;
} __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);

#define RX_BUFFER_INFO_FLAG_ACTIVE      BIT(0)
struct lan743x_rx_buffer_info {
        int flags;
        struct sk_buff *skb;

        dma_addr_t      dma_ptr;
        unsigned int    buffer_length;
};

#define LAN743X_RX_RING_SIZE        (65)

#define RX_PROCESS_RESULT_NOTHING_TO_DO     (0)
#define RX_PROCESS_RESULT_PACKET_RECEIVED   (1)
#define RX_PROCESS_RESULT_PACKET_DROPPED    (2)

u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset);
void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data);

#endif /* _LAN743X_H */