target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  15  *
  16  *   based on Ralink SDK3.3
  17  *   Copyright (C) 2009 John Crispin <blogic@openwrt.org>
  18  */
  19
  20 #ifndef RAMIPS_ETH_H
  21 #define RAMIPS_ETH_H
  22
  23 #include <linux/mii.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/netdevice.h>
  26
  27 #define NUM_RX_DESC     256
  28 #define NUM_TX_DESC     256
  29
  30 #define RAMIPS_DELAY_EN_INT                             0x80
  31 #define RAMIPS_DELAY_MAX_INT                    0x04
  32 #define RAMIPS_DELAY_MAX_TOUT                   0x04
  33 #define RAMIPS_DELAY_CHAN                               (((RAMIPS_DELAY_EN_INT | RAMIPS_DELAY_MAX_INT) << 8) | RAMIPS_DELAY_MAX_TOUT)
  34 #define RAMIPS_DELAY_INIT                               ((RAMIPS_DELAY_CHAN << 16) | RAMIPS_DELAY_CHAN)
  35 #define RAMIPS_PSE_FQFC_CFG_INIT                0x80504000
  36
  37 #define RAMIPS_FE_RESET                                 0x34
  38 #define RAMIPS_FE_RESET_BIT                             BIT(21)
  39
  40 /* interrupt bitd */
  41 #define RAMIPS_CNT_PPE_AF                               BIT(31)
  42 #define RAMIPS_CNT_GDM_AF                               BIT(29)
  43 #define RAMIPS_PSE_P2_FC                                BIT(26)
  44 #define RAMIPS_PSE_BUF_DROP                             BIT(24)
  45 #define RAMIPS_GDM_OTHER_DROP                   BIT(23)
  46 #define RAMIPS_PSE_P1_FC                                BIT(22)
  47 #define RAMIPS_PSE_P0_FC                                BIT(21)
  48 #define RAMIPS_PSE_FQ_EMPTY                             BIT(20)
  49 #define RAMIPS_GE1_STA_CHG                              BIT(18)
  50 #define RAMIPS_TX_COHERENT                              BIT(17)
  51 #define RAMIPS_RX_COHERENT                              BIT(16)
  52 #define RAMIPS_TX_DONE_INT3                             BIT(11)
  53 #define RAMIPS_TX_DONE_INT2                             BIT(10)
  54 #define RAMIPS_TX_DONE_INT1                             BIT(9)
  55 #define RAMIPS_TX_DONE_INT0                             BIT(8)
  56 #define RAMIPS_RX_DONE_INT0                             BIT(2)
  57 #define RAMIPS_TX_DLY_INT                               BIT(1)
  58 #define RAMIPS_RX_DLY_INT                               BIT(0)
  59
  60 /* registers */
  61 #define RAMIPS_FE_OFFSET                                0x0000
  62 #define RAMIPS_GDMA_OFFSET                              0x0020
  63 #define RAMIPS_PSE_OFFSET                               0x0040
  64 #define RAMIPS_GDMA2_OFFSET                             0x0060
  65 #define RAMIPS_CDMA_OFFSET                              0x0080
  66 #define RAMIPS_PDMA_OFFSET                              0x0100
  67 #define RAMIPS_PPE_OFFSET                               0x0200
  68 #define RAMIPS_CMTABLE_OFFSET                   0x0400
  69 #define RAMIPS_POLICYTABLE_OFFSET               0x1000
  70
  71 #define RAMIPS_MDIO_ACCESS                              (RAMIPS_FE_OFFSET + 0x00)
  72 #define RAMIPS_MDIO_CFG                                 (RAMIPS_FE_OFFSET + 0x04)
  73 #define RAMIPS_FE_GLO_CFG                               (RAMIPS_FE_OFFSET + 0x08)
  74 #define RAMIPS_FE_RST_GL                                (RAMIPS_FE_OFFSET + 0x0C)
  75 #define RAMIPS_FE_INT_STATUS                    (RAMIPS_FE_OFFSET + 0x10)
  76 #define RAMIPS_FE_INT_ENABLE                    (RAMIPS_FE_OFFSET + 0x14)
  77 #define RAMIPS_MDIO_CFG2                                (RAMIPS_FE_OFFSET + 0x18)
  78 #define RAMIPS_FOC_TS_T                                 (RAMIPS_FE_OFFSET + 0x1C)
  79
  80 #define RAMIPS_GDMA1_FWD_CFG                    (RAMIPS_GDMA_OFFSET + 0x00)
  81 #define RAMIPS_GDMA1_SCH_CFG                    (RAMIPS_GDMA_OFFSET + 0x04)
  82 #define RAMIPS_GDMA1_SHPR_CFG                   (RAMIPS_GDMA_OFFSET + 0x08)
  83 #define RAMIPS_GDMA1_MAC_ADRL                   (RAMIPS_GDMA_OFFSET + 0x0C)
  84 #define RAMIPS_GDMA1_MAC_ADRH                   (RAMIPS_GDMA_OFFSET + 0x10)
  85
  86 #define RAMIPS_GDMA2_FWD_CFG                    (RAMIPS_GDMA2_OFFSET + 0x00)
  87 #define RAMIPS_GDMA2_SCH_CFG                    (RAMIPS_GDMA2_OFFSET + 0x04)
  88 #define RAMIPS_GDMA2_SHPR_CFG                   (RAMIPS_GDMA2_OFFSET + 0x08)
  89 #define RAMIPS_GDMA2_MAC_ADRL                   (RAMIPS_GDMA2_OFFSET + 0x0C)
  90 #define RAMIPS_GDMA2_MAC_ADRH                   (RAMIPS_GDMA2_OFFSET + 0x10)
  91
  92 #define RAMIPS_PSE_FQ_CFG                               (RAMIPS_PSE_OFFSET + 0x00)
  93 #define RAMIPS_CDMA_FC_CFG                              (RAMIPS_PSE_OFFSET + 0x04)
  94 #define RAMIPS_GDMA1_FC_CFG                             (RAMIPS_PSE_OFFSET + 0x08)
  95 #define RAMIPS_GDMA2_FC_CFG                             (RAMIPS_PSE_OFFSET + 0x0C)
  96
  97 #define RAMIPS_CDMA_CSG_CFG                             (RAMIPS_CDMA_OFFSET + 0x00)
  98 #define RAMIPS_CDMA_SCH_CFG                             (RAMIPS_CDMA_OFFSET + 0x04)
  99
 100 #define RAMIPS_PDMA_GLO_CFG                             (RAMIPS_PDMA_OFFSET + 0x00)
 101 #define RAMIPS_PDMA_RST_CFG                             (RAMIPS_PDMA_OFFSET + 0x04)
 102 #define RAMIPS_PDMA_SCH_CFG                             (RAMIPS_PDMA_OFFSET + 0x08)
 103 #define RAMIPS_DLY_INT_CFG                              (RAMIPS_PDMA_OFFSET + 0x0C)
 104 #define RAMIPS_TX_BASE_PTR0                             (RAMIPS_PDMA_OFFSET + 0x10)
 105 #define RAMIPS_TX_MAX_CNT0                              (RAMIPS_PDMA_OFFSET + 0x14)
 106 #define RAMIPS_TX_CTX_IDX0                              (RAMIPS_PDMA_OFFSET + 0x18)
 107 #define RAMIPS_TX_DTX_IDX0                              (RAMIPS_PDMA_OFFSET + 0x1C)
 108 #define RAMIPS_TX_BASE_PTR1                             (RAMIPS_PDMA_OFFSET + 0x20)
 109 #define RAMIPS_TX_MAX_CNT1                              (RAMIPS_PDMA_OFFSET + 0x24)
 110 #define RAMIPS_TX_CTX_IDX1                              (RAMIPS_PDMA_OFFSET + 0x28)
 111 #define RAMIPS_TX_DTX_IDX1                              (RAMIPS_PDMA_OFFSET + 0x2C)
 112 #define RAMIPS_TX_BASE_PTR2                             (RAMIPS_PDMA_OFFSET + 0x40)
 113 #define RAMIPS_TX_MAX_CNT2                              (RAMIPS_PDMA_OFFSET + 0x44)
 114 #define RAMIPS_TX_CTX_IDX2                              (RAMIPS_PDMA_OFFSET + 0x48)
 115 #define RAMIPS_TX_DTX_IDX2                              (RAMIPS_PDMA_OFFSET + 0x4C)
 116 #define RAMIPS_TX_BASE_PTR3                             (RAMIPS_PDMA_OFFSET + 0x50)
 117 #define RAMIPS_TX_MAX_CNT3                              (RAMIPS_PDMA_OFFSET + 0x54)
 118 #define RAMIPS_TX_CTX_IDX3                              (RAMIPS_PDMA_OFFSET + 0x58)
 119 #define RAMIPS_TX_DTX_IDX3                              (RAMIPS_PDMA_OFFSET + 0x5C)
 120 #define RAMIPS_RX_BASE_PTR0                             (RAMIPS_PDMA_OFFSET + 0x30)
 121 #define RAMIPS_RX_MAX_CNT0                              (RAMIPS_PDMA_OFFSET + 0x34)
 122 #define RAMIPS_RX_CALC_IDX0                             (RAMIPS_PDMA_OFFSET + 0x38)
 123 #define RAMIPS_RX_DRX_IDX0                              (RAMIPS_PDMA_OFFSET + 0x3C)
 124 #define RAMIPS_RX_BASE_PTR1                             (RAMIPS_PDMA_OFFSET + 0x40)
 125 #define RAMIPS_RX_MAX_CNT1                              (RAMIPS_PDMA_OFFSET + 0x44)
 126 #define RAMIPS_RX_CALC_IDX1                             (RAMIPS_PDMA_OFFSET + 0x48)
 127 #define RAMIPS_RX_DRX_IDX1                              (RAMIPS_PDMA_OFFSET + 0x4C)
 128
 129 /* uni-cast port */
 130 #define RAMIPS_GDM1_ICS_EN                              (0x1 << 22)
 131 #define RAMIPS_GDM1_TCS_EN                              (0x1 << 21)
 132 #define RAMIPS_GDM1_UCS_EN                              (0x1 << 20)
 133 #define RAMIPS_GDM1_JMB_EN                              (0x1 << 19)
 134 #define RAMIPS_GDM1_STRPCRC                             (0x1 << 16)
 135 #define RAMIPS_GDM1_UFRC_P_CPU                  (0 << 12)
 136 #define RAMIPS_GDM1_UFRC_P_GDMA1                (1 << 12)
 137 #define RAMIPS_GDM1_UFRC_P_PPE                  (6 << 12)
 138
 139 /* checksums */
 140 #define RAMIPS_ICS_GEN_EN                               BIT(2)
 141 #define RAMIPS_UCS_GEN_EN                               BIT(1)
 142 #define RAMIPS_TCS_GEN_EN                               BIT(0)
 143
 144 /* dma rimg */
 145 #define RAMIPS_PST_DRX_IDX0                             BIT(16)
 146 #define RAMIPS_PST_DTX_IDX3                             BIT(3)
 147 #define RAMIPS_PST_DTX_IDX2                             BIT(2)
 148 #define RAMIPS_PST_DTX_IDX1                             BIT(1)
 149 #define RAMIPS_PST_DTX_IDX0                             BIT(0)
 150
 151 #define RAMIPS_TX_WB_DDONE                              BIT(6)
 152 #define RAMIPS_RX_DMA_BUSY                              BIT(3)
 153 #define RAMIPS_TX_DMA_BUSY                              BIT(1)
 154 #define RAMIPS_RX_DMA_EN                                BIT(2)
 155 #define RAMIPS_TX_DMA_EN                                BIT(0)
 156
 157 #define RAMIPS_PDMA_SIZE_4DWORDS                (0<<4)
 158 #define RAMIPS_PDMA_SIZE_8DWORDS                (1<<4)
 159 #define RAMIPS_PDMA_SIZE_16DWORDS               (2<<4)
 160
 161 #define RAMIPS_US_CYC_CNT_MASK                  0xff
 162 #define RAMIPS_US_CYC_CNT_SHIFT                 0x8
 163 #define RAMIPS_US_CYC_CNT_DIVISOR               1000000
 164
 165 #define RX_DMA_PLEN0(x)                                 ((x >> 16) & 0x3fff)
 166 #define RX_DMA_LSO                                              BIT(30)
 167 #define RX_DMA_DONE                                             BIT(31)
 168 struct ramips_rx_dma {
 169         unsigned int rxd1;
 170         unsigned int rxd2;
 171         unsigned int rxd3;
 172         unsigned int rxd4;
 173 };
 174
 175 #define TX_DMA_PLEN0_MASK                               ((0x3fff) << 16)
 176 #define TX_DMA_PLEN0(x)                                 ((x & 0x3fff) << 16)
 177 #define TX_DMA_LSO                                              BIT(30)
 178 #define TX_DMA_DONE                                             BIT(31)
 179 #define TX_DMA_QN(x)                                    (x << 16)
 180 #define TX_DMA_PN(x)                                    (x << 24)
 181 #define TX_DMA_QN_MASK                                  TX_DMA_QN(0x7)
 182 #define TX_DMA_PN_MASK                                  TX_DMA_PN(0x7)
 183 struct ramips_tx_dma {
 184         unsigned int txd1;
 185         unsigned int txd2;
 186         unsigned int txd3;
 187         unsigned int txd4;
 188 };
 189
 190 struct ramips_eth_platform_data
 191 {
 192         unsigned char mac[6];
 193         unsigned int base_addr;
 194         void (*reset_fe)(void);
 195         int min_pkt_len;
 196         int irq;
 197 };
 198
 199 struct raeth_priv
 200 {
 201         unsigned int                    phy_rx;
 202         struct tasklet_struct   rx_tasklet;
 203         struct ramips_rx_dma    *rx;
 204         struct sk_buff                  *rx_skb[NUM_RX_DESC];
 205
 206         unsigned int                    phy_tx;
 207         struct tasklet_struct   tx_housekeeping_tasklet;
 208         struct ramips_tx_dma    *tx;
 209         struct sk_buff                  *tx_skb[NUM_RX_DESC];
 210
 211         unsigned int                    skb_free_idx;
 212
 213         struct ramips_eth_platform_data *plat;
 214 };
 215
 216 #endif