drivers/net/ethernet/apm/xgene-v2/mac.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Applied Micro X-Gene SoC Ethernet v2 Driver
   4  *
   5  * Copyright (c) 2017, Applied Micro Circuits Corporation
   6  * Author(s): Iyappan Subramanian <isubramanian@apm.com>
   7  *            Keyur Chudgar <kchudgar@apm.com>
   8  */
   9
  10 #ifndef __XGENE_ENET_V2_MAC_H__
  11 #define __XGENE_ENET_V2_MAC_H__
  12
  13 /* Register offsets */
  14 #define MAC_CONFIG_1            0xa000
  15 #define MAC_CONFIG_2            0xa004
  16 #define MII_MGMT_CONFIG         0xa020
  17 #define MII_MGMT_COMMAND        0xa024
  18 #define MII_MGMT_ADDRESS        0xa028
  19 #define MII_MGMT_CONTROL        0xa02c
  20 #define MII_MGMT_STATUS         0xa030
  21 #define MII_MGMT_INDICATORS     0xa034
  22 #define INTERFACE_CONTROL       0xa038
  23 #define STATION_ADDR0           0xa040
  24 #define STATION_ADDR1           0xa044
  25
  26 #define RGMII_REG_0             0x27e0
  27 #define ICM_CONFIG0_REG_0       0x2c00
  28 #define ICM_CONFIG2_REG_0       0x2c08
  29 #define ECM_CONFIG0_REG_0       0x2d00
  30
  31 /* Register fields */
  32 #define SOFT_RESET              BIT(31)
  33 #define TX_EN                   BIT(0)
  34 #define RX_EN                   BIT(2)
  35 #define PAD_CRC                 BIT(2)
  36 #define CRC_EN                  BIT(1)
  37 #define FULL_DUPLEX             BIT(0)
  38
  39 #define INTF_MODE_POS           8
  40 #define INTF_MODE_LEN           2
  41 #define HD_MODE_POS             25
  42 #define HD_MODE_LEN             2
  43 #define CFG_MACMODE_POS         18
  44 #define CFG_MACMODE_LEN         2
  45 #define CFG_WAITASYNCRD_POS     0
  46 #define CFG_WAITASYNCRD_LEN     16
  47 #define CFG_SPEED_125_POS       24
  48 #define CFG_WFIFOFULLTHR_POS    0
  49 #define CFG_WFIFOFULLTHR_LEN    7
  50 #define MGMT_CLOCK_SEL_POS      0
  51 #define MGMT_CLOCK_SEL_LEN      3
  52 #define PHY_ADDR_POS            8
  53 #define PHY_ADDR_LEN            5
  54 #define REG_ADDR_POS            0
  55 #define REG_ADDR_LEN            5
  56 #define MII_MGMT_BUSY           BIT(0)
  57 #define MII_READ_CYCLE          BIT(0)
  58 #define CFG_WAITASYNCRD_EN      BIT(16)
  59
  60 static inline void xgene_set_reg_bits(u32 *var, int pos, int len, u32 val)
  61 {
  62         u32 mask = GENMASK(pos + len, pos);
  63
  64         *var &= ~mask;
  65         *var |= ((val << pos) & mask);
  66 }
  67
  68 static inline u32 xgene_get_reg_bits(u32 var, int pos, int len)
  69 {
  70         u32 mask = GENMASK(pos + len, pos);
  71
  72         return (var & mask) >> pos;
  73 }
  74
  75 #define SET_REG_BITS(var, field, val)                                   \
  76         xgene_set_reg_bits(var, field ## _POS, field ## _LEN, val)
  77
  78 #define SET_REG_BIT(var, field, val)                                    \
  79         xgene_set_reg_bits(var, field ## _POS, 1, val)
  80
  81 #define GET_REG_BITS(var, field)                                        \
  82         xgene_get_reg_bits(var, field ## _POS, field ## _LEN)
  83
  84 #define GET_REG_BIT(var, field)         ((var) & (field))
  85
  86 struct xge_pdata;
  87
  88 void xge_mac_reset(struct xge_pdata *pdata);
  89 void xge_mac_set_speed(struct xge_pdata *pdata);
  90 void xge_mac_enable(struct xge_pdata *pdata);
  91 void xge_mac_disable(struct xge_pdata *pdata);
  92 void xge_mac_init(struct xge_pdata *pdata);
  93 void xge_mac_set_station_addr(struct xge_pdata *pdata);
  94
  95 #endif /* __XGENE_ENET_V2_MAC_H__ */