1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright(c) 2015 EZchip Technologies. 4 */ 5 6#ifndef _NPS_ENET_H 7#define _NPS_ENET_H 8 9/* default values */ 10#define NPS_ENET_NAPI_POLL_WEIGHT 0x2 11#define NPS_ENET_MAX_FRAME_LENGTH 0x3FFF 12#define NPS_ENET_GE_MAC_CFG_0_TX_FC_RETR 0x7 13#define NPS_ENET_GE_MAC_CFG_0_RX_IFG 0x5 14#define NPS_ENET_GE_MAC_CFG_0_TX_IFG 0xC 15#define NPS_ENET_GE_MAC_CFG_0_TX_PR_LEN 0x7 16#define NPS_ENET_GE_MAC_CFG_2_STAT_EN 0x3 17#define NPS_ENET_GE_MAC_CFG_3_RX_IFG_TH 0x14 18#define NPS_ENET_GE_MAC_CFG_3_MAX_LEN 0x3FFC 19#define NPS_ENET_ENABLE 1 20#define NPS_ENET_DISABLE 0 21 22/* register definitions */ 23#define NPS_ENET_REG_TX_CTL 0x800 24#define NPS_ENET_REG_TX_BUF 0x808 25#define NPS_ENET_REG_RX_CTL 0x810 26#define NPS_ENET_REG_RX_BUF 0x818 27#define NPS_ENET_REG_BUF_INT_ENABLE 0x8C0 28#define NPS_ENET_REG_GE_MAC_CFG_0 0x1000 29#define NPS_ENET_REG_GE_MAC_CFG_1 0x1004 30#define NPS_ENET_REG_GE_MAC_CFG_2 0x1008 31#define NPS_ENET_REG_GE_MAC_CFG_3 0x100C 32#define NPS_ENET_REG_GE_RST 0x1400 33#define NPS_ENET_REG_PHASE_FIFO_CTL 0x1404 34 35/* Tx control register masks and shifts */ 36#define TX_CTL_NT_MASK 0x7FF 37#define TX_CTL_NT_SHIFT 0 38#define TX_CTL_ET_MASK 0x4000 39#define TX_CTL_ET_SHIFT 14 40#define TX_CTL_CT_MASK 0x8000 41#define TX_CTL_CT_SHIFT 15 42 43/* Rx control register masks and shifts */ 44#define RX_CTL_NR_MASK 0x7FF 45#define RX_CTL_NR_SHIFT 0 46#define RX_CTL_CRC_MASK 0x2000 47#define RX_CTL_CRC_SHIFT 13 48#define RX_CTL_ER_MASK 0x4000 49#define RX_CTL_ER_SHIFT 14 50#define RX_CTL_CR_MASK 0x8000 51#define RX_CTL_CR_SHIFT 15 52 53/* Interrupt enable for data buffer events register masks and shifts */ 54#define RX_RDY_MASK 0x1 55#define RX_RDY_SHIFT 0 56#define TX_DONE_MASK 0x2 57#define TX_DONE_SHIFT 1 58 59/* Gbps Eth MAC Configuration 0 register masks and shifts */ 60#define CFG_0_RX_EN_MASK 0x1 61#define CFG_0_RX_EN_SHIFT 0 62#define CFG_0_TX_EN_MASK 0x2 63#define CFG_0_TX_EN_SHIFT 1 64#define CFG_0_TX_FC_EN_MASK 0x4 65#define CFG_0_TX_FC_EN_SHIFT 2 66#define CFG_0_TX_PAD_EN_MASK 0x8 67#define CFG_0_TX_PAD_EN_SHIFT 3 68#define CFG_0_TX_CRC_EN_MASK 0x10 69#define CFG_0_TX_CRC_EN_SHIFT 4 70#define CFG_0_RX_FC_EN_MASK 0x20 71#define CFG_0_RX_FC_EN_SHIFT 5 72#define CFG_0_RX_CRC_STRIP_MASK 0x40 73#define CFG_0_RX_CRC_STRIP_SHIFT 6 74#define CFG_0_RX_CRC_IGNORE_MASK 0x80 75#define CFG_0_RX_CRC_IGNORE_SHIFT 7 76#define CFG_0_RX_LENGTH_CHECK_EN_MASK 0x100 77#define CFG_0_RX_LENGTH_CHECK_EN_SHIFT 8 78#define CFG_0_TX_FC_RETR_MASK 0xE00 79#define CFG_0_TX_FC_RETR_SHIFT 9 80#define CFG_0_RX_IFG_MASK 0xF000 81#define CFG_0_RX_IFG_SHIFT 12 82#define CFG_0_TX_IFG_MASK 0x3F0000 83#define CFG_0_TX_IFG_SHIFT 16 84#define CFG_0_RX_PR_CHECK_EN_MASK 0x400000 85#define CFG_0_RX_PR_CHECK_EN_SHIFT 22 86#define CFG_0_NIB_MODE_MASK 0x800000 87#define CFG_0_NIB_MODE_SHIFT 23 88#define CFG_0_TX_IFG_NIB_MASK 0xF000000 89#define CFG_0_TX_IFG_NIB_SHIFT 24 90#define CFG_0_TX_PR_LEN_MASK 0xF0000000 91#define CFG_0_TX_PR_LEN_SHIFT 28 92 93/* Gbps Eth MAC Configuration 1 register masks and shifts */ 94#define CFG_1_OCTET_0_MASK 0x000000FF 95#define CFG_1_OCTET_0_SHIFT 0 96#define CFG_1_OCTET_1_MASK 0x0000FF00 97#define CFG_1_OCTET_1_SHIFT 8 98#define CFG_1_OCTET_2_MASK 0x00FF0000 99#define CFG_1_OCTET_2_SHIFT 16 100#define CFG_1_OCTET_3_MASK 0xFF000000 101#define CFG_1_OCTET_3_SHIFT 24 102 103/* Gbps Eth MAC Configuration 2 register masks and shifts */ 104#define CFG_2_OCTET_4_MASK 0x000000FF 105#define CFG_2_OCTET_4_SHIFT 0 106#define CFG_2_OCTET_5_MASK 0x0000FF00 107#define CFG_2_OCTET_5_SHIFT 8 108#define CFG_2_DISK_MC_MASK 0x00100000 109#define CFG_2_DISK_MC_SHIFT 20 110#define CFG_2_DISK_BC_MASK 0x00200000 111#define CFG_2_DISK_BC_SHIFT 21 112#define CFG_2_DISK_DA_MASK 0x00400000 113#define CFG_2_DISK_DA_SHIFT 22 114#define CFG_2_STAT_EN_MASK 0x3000000 115#define CFG_2_STAT_EN_SHIFT 24 116#define CFG_2_TRANSMIT_FLUSH_EN_MASK 0x80000000 117#define CFG_2_TRANSMIT_FLUSH_EN_SHIFT 31 118 119/* Gbps Eth MAC Configuration 3 register masks and shifts */ 120#define CFG_3_TM_HD_MODE_MASK 0x1 121#define CFG_3_TM_HD_MODE_SHIFT 0 122#define CFG_3_RX_CBFC_EN_MASK 0x2 123#define CFG_3_RX_CBFC_EN_SHIFT 1 124#define CFG_3_RX_CBFC_REDIR_EN_MASK 0x4 125#define CFG_3_RX_CBFC_REDIR_EN_SHIFT 2 126#define CFG_3_REDIRECT_CBFC_SEL_MASK 0x18 127#define CFG_3_REDIRECT_CBFC_SEL_SHIFT 3 128#define CFG_3_CF_DROP_MASK 0x20 129#define CFG_3_CF_DROP_SHIFT 5 130#define CFG_3_CF_TIMEOUT_MASK 0x3C0 131#define CFG_3_CF_TIMEOUT_SHIFT 6 132#define CFG_3_RX_IFG_TH_MASK 0x7C00 133#define CFG_3_RX_IFG_TH_SHIFT 10 134#define CFG_3_TX_CBFC_EN_MASK 0x8000 135#define CFG_3_TX_CBFC_EN_SHIFT 15 136#define CFG_3_MAX_LEN_MASK 0x3FFF0000 137#define CFG_3_MAX_LEN_SHIFT 16 138#define CFG_3_EXT_OOB_CBFC_SEL_MASK 0xC0000000 139#define CFG_3_EXT_OOB_CBFC_SEL_SHIFT 30 140 141/* GE MAC, PCS reset control register masks and shifts */ 142#define RST_SPCS_MASK 0x1 143#define RST_SPCS_SHIFT 0 144#define RST_GMAC_0_MASK 0x100 145#define RST_GMAC_0_SHIFT 8 146 147/* Tx phase sync FIFO control register masks and shifts */ 148#define PHASE_FIFO_CTL_RST_MASK 0x1 149#define PHASE_FIFO_CTL_RST_SHIFT 0 150#define PHASE_FIFO_CTL_INIT_MASK 0x2 151#define PHASE_FIFO_CTL_INIT_SHIFT 1 152 153/** 154 * struct nps_enet_priv - Storage of ENET's private information. 155 * @regs_base: Base address of ENET memory-mapped control registers. 156 * @irq: For RX/TX IRQ number. 157 * @tx_skb: socket buffer of sent frame. 158 * @napi: Structure for NAPI. 159 */ 160struct nps_enet_priv { 161 void __iomem *regs_base; 162 s32 irq; 163 struct sk_buff *tx_skb; 164 struct napi_struct napi; 165 u32 ge_mac_cfg_2_value; 166 u32 ge_mac_cfg_3_value; 167}; 168 169/** 170 * nps_enet_reg_set - Sets ENET register with provided value. 171 * @priv: Pointer to EZchip ENET private data structure. 172 * @reg: Register offset from base address. 173 * @value: Value to set in register. 174 */ 175static inline void nps_enet_reg_set(struct nps_enet_priv *priv, 176 s32 reg, s32 value) 177{ 178 iowrite32be(value, priv->regs_base + reg); 179} 180 181/** 182 * nps_enet_reg_get - Gets value of specified ENET register. 183 * @priv: Pointer to EZchip ENET private data structure. 184 * @reg: Register offset from base address. 185 * 186 * returns: Value of requested register. 187 */ 188static inline u32 nps_enet_reg_get(struct nps_enet_priv *priv, s32 reg) 189{ 190 return ioread32be(priv->regs_base + reg); 191} 192 193#endif /* _NPS_ENET_H */ 194