1 /* 2 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> 3 * 4 * Intel Platform Controller Hub EG20T (codename Topcliff) GMAC Driver 5 * Adapted from linux drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #ifndef _PCH_GBE_H_ 11 #define _PCH_GBE_H_ 12 13 #define PCH_GBE_TIMEOUT (3 * CONFIG_SYS_HZ) 14 15 #define PCH_GBE_DESC_NUM 4 16 #define PCH_GBE_ALIGN_SIZE 64 17 18 /* 19 * Topcliff GBE MAC supports receiving ethernet frames with normal frame size 20 * (64-1518 bytes) as well as up to 10318 bytes, however it does not have a 21 * register bit to turn off receiving 'jumbo frame', so we have to allocate 22 * our own buffer to store the received frames instead of using U-Boot's own. 23 */ 24 #define PCH_GBE_RX_FRAME_LEN ROUND(10318, PCH_GBE_ALIGN_SIZE) 25 26 /* Interrupt Status */ 27 /* Interrupt Status Hold */ 28 /* Interrupt Enable */ 29 #define PCH_GBE_INT_RX_DMA_CMPLT 0x00000001 30 #define PCH_GBE_INT_RX_VALID 0x00000002 31 #define PCH_GBE_INT_RX_FRAME_ERR 0x00000004 32 #define PCH_GBE_INT_RX_FIFO_ERR 0x00000008 33 #define PCH_GBE_INT_RX_DMA_ERR 0x00000010 34 #define PCH_GBE_INT_RX_DSC_EMP 0x00000020 35 #define PCH_GBE_INT_TX_CMPLT 0x00000100 36 #define PCH_GBE_INT_TX_DMA_CMPLT 0x00000200 37 #define PCH_GBE_INT_TX_FIFO_ERR 0x00000400 38 #define PCH_GBE_INT_TX_DMA_ERR 0x00000800 39 #define PCH_GBE_INT_PAUSE_CMPLT 0x00001000 40 #define PCH_GBE_INT_MIIM_CMPLT 0x00010000 41 #define PCH_GBE_INT_PHY_INT 0x00100000 42 #define PCH_GBE_INT_WOL_DET 0x01000000 43 #define PCH_GBE_INT_TCPIP_ERR 0x10000000 44 45 /* Mode */ 46 #define PCH_GBE_MODE_MII_ETHER 0x00000000 47 #define PCH_GBE_MODE_GMII_ETHER 0x80000000 48 #define PCH_GBE_MODE_HALF_DUPLEX 0x00000000 49 #define PCH_GBE_MODE_FULL_DUPLEX 0x40000000 50 #define PCH_GBE_MODE_FR_BST 0x04000000 51 52 /* Reset */ 53 #define PCH_GBE_ALL_RST 0x80000000 54 #define PCH_GBE_TX_RST 0x00008000 55 #define PCH_GBE_RX_RST 0x00004000 56 57 /* TCP/IP Accelerator Control */ 58 #define PCH_GBE_EX_LIST_EN 0x00000008 59 #define PCH_GBE_RX_TCPIPACC_OFF 0x00000004 60 #define PCH_GBE_TX_TCPIPACC_EN 0x00000002 61 #define PCH_GBE_RX_TCPIPACC_EN 0x00000001 62 63 /* MAC RX Enable */ 64 #define PCH_GBE_MRE_MAC_RX_EN 0x00000001 65 66 /* RX Flow Control */ 67 #define PCH_GBE_FL_CTRL_EN 0x80000000 68 69 /* RX Mode */ 70 #define PCH_GBE_ADD_FIL_EN 0x80000000 71 #define PCH_GBE_MLT_FIL_EN 0x40000000 72 #define PCH_GBE_RH_ALM_EMP_4 0x00000000 73 #define PCH_GBE_RH_ALM_EMP_8 0x00004000 74 #define PCH_GBE_RH_ALM_EMP_16 0x00008000 75 #define PCH_GBE_RH_ALM_EMP_32 0x0000c000 76 #define PCH_GBE_RH_ALM_FULL_4 0x00000000 77 #define PCH_GBE_RH_ALM_FULL_8 0x00001000 78 #define PCH_GBE_RH_ALM_FULL_16 0x00002000 79 #define PCH_GBE_RH_ALM_FULL_32 0x00003000 80 #define PCH_GBE_RH_RD_TRG_4 0x00000000 81 #define PCH_GBE_RH_RD_TRG_8 0x00000200 82 #define PCH_GBE_RH_RD_TRG_16 0x00000400 83 #define PCH_GBE_RH_RD_TRG_32 0x00000600 84 #define PCH_GBE_RH_RD_TRG_64 0x00000800 85 #define PCH_GBE_RH_RD_TRG_128 0x00000a00 86 #define PCH_GBE_RH_RD_TRG_256 0x00000c00 87 #define PCH_GBE_RH_RD_TRG_512 0x00000e00 88 89 /* TX Mode */ 90 #define PCH_GBE_TM_NO_RTRY 0x80000000 91 #define PCH_GBE_TM_LONG_PKT 0x40000000 92 #define PCH_GBE_TM_ST_AND_FD 0x20000000 93 #define PCH_GBE_TM_SHORT_PKT 0x10000000 94 #define PCH_GBE_TM_LTCOL_RETX 0x08000000 95 #define PCH_GBE_TM_TH_TX_STRT_4 0x00000000 96 #define PCH_GBE_TM_TH_TX_STRT_8 0x00004000 97 #define PCH_GBE_TM_TH_TX_STRT_16 0x00008000 98 #define PCH_GBE_TM_TH_TX_STRT_32 0x0000c000 99 #define PCH_GBE_TM_TH_ALM_EMP_4 0x00000000 100 #define PCH_GBE_TM_TH_ALM_EMP_8 0x00000800 101 #define PCH_GBE_TM_TH_ALM_EMP_16 0x00001000 102 #define PCH_GBE_TM_TH_ALM_EMP_32 0x00001800 103 #define PCH_GBE_TM_TH_ALM_EMP_64 0x00002000 104 #define PCH_GBE_TM_TH_ALM_EMP_128 0x00002800 105 #define PCH_GBE_TM_TH_ALM_EMP_256 0x00003000 106 #define PCH_GBE_TM_TH_ALM_EMP_512 0x00003800 107 #define PCH_GBE_TM_TH_ALM_FULL_4 0x00000000 108 #define PCH_GBE_TM_TH_ALM_FULL_8 0x00000200 109 #define PCH_GBE_TM_TH_ALM_FULL_16 0x00000400 110 #define PCH_GBE_TM_TH_ALM_FULL_32 0x00000600 111 112 /* MAC Address Mask */ 113 #define PCH_GBE_BUSY 0x80000000 114 115 /* MIIM */ 116 #define PCH_GBE_MIIM_OPER_WRITE 0x04000000 117 #define PCH_GBE_MIIM_OPER_READ 0x00000000 118 #define PCH_GBE_MIIM_OPER_READY 0x04000000 119 #define PCH_GBE_MIIM_PHY_ADDR_SHIFT 21 120 #define PCH_GBE_MIIM_REG_ADDR_SHIFT 16 121 122 /* RGMII Control */ 123 #define PCH_GBE_CRS_SEL 0x00000010 124 #define PCH_GBE_RGMII_RATE_125M 0x00000000 125 #define PCH_GBE_RGMII_RATE_25M 0x00000008 126 #define PCH_GBE_RGMII_RATE_2_5M 0x0000000c 127 #define PCH_GBE_RGMII_MODE_GMII 0x00000000 128 #define PCH_GBE_RGMII_MODE_RGMII 0x00000002 129 #define PCH_GBE_CHIP_TYPE_EXTERNAL 0x00000000 130 #define PCH_GBE_CHIP_TYPE_INTERNAL 0x00000001 131 132 /* DMA Control */ 133 #define PCH_GBE_RX_DMA_EN 0x00000002 134 #define PCH_GBE_TX_DMA_EN 0x00000001 135 136 /* Receive Descriptor bit definitions */ 137 #define PCH_GBE_RXD_ACC_STAT_BCAST 0x00000400 138 #define PCH_GBE_RXD_ACC_STAT_MCAST 0x00000200 139 #define PCH_GBE_RXD_ACC_STAT_UCAST 0x00000100 140 #define PCH_GBE_RXD_ACC_STAT_TCPIPOK 0x000000c0 141 #define PCH_GBE_RXD_ACC_STAT_IPOK 0x00000080 142 #define PCH_GBE_RXD_ACC_STAT_TCPOK 0x00000040 143 #define PCH_GBE_RXD_ACC_STAT_IP6ERR 0x00000020 144 #define PCH_GBE_RXD_ACC_STAT_OFLIST 0x00000010 145 #define PCH_GBE_RXD_ACC_STAT_TYPEIP 0x00000008 146 #define PCH_GBE_RXD_ACC_STAT_MACL 0x00000004 147 #define PCH_GBE_RXD_ACC_STAT_PPPOE 0x00000002 148 #define PCH_GBE_RXD_ACC_STAT_VTAGT 0x00000001 149 #define PCH_GBE_RXD_GMAC_STAT_PAUSE 0x0200 150 #define PCH_GBE_RXD_GMAC_STAT_MARBR 0x0100 151 #define PCH_GBE_RXD_GMAC_STAT_MARMLT 0x0080 152 #define PCH_GBE_RXD_GMAC_STAT_MARIND 0x0040 153 #define PCH_GBE_RXD_GMAC_STAT_MARNOTMT 0x0020 154 #define PCH_GBE_RXD_GMAC_STAT_TLONG 0x0010 155 #define PCH_GBE_RXD_GMAC_STAT_TSHRT 0x0008 156 #define PCH_GBE_RXD_GMAC_STAT_NOTOCTAL 0x0004 157 #define PCH_GBE_RXD_GMAC_STAT_NBLERR 0x0002 158 #define PCH_GBE_RXD_GMAC_STAT_CRCERR 0x0001 159 160 /* Transmit Descriptor bit definitions */ 161 #define PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF 0x0008 162 #define PCH_GBE_TXD_CTRL_ITAG 0x0004 163 #define PCH_GBE_TXD_CTRL_ICRC 0x0002 164 #define PCH_GBE_TXD_CTRL_APAD 0x0001 165 #define PCH_GBE_TXD_WORDS_SHIFT 2 166 #define PCH_GBE_TXD_GMAC_STAT_CMPLT 0x2000 167 #define PCH_GBE_TXD_GMAC_STAT_ABT 0x1000 168 #define PCH_GBE_TXD_GMAC_STAT_EXCOL 0x0800 169 #define PCH_GBE_TXD_GMAC_STAT_SNGCOL 0x0400 170 #define PCH_GBE_TXD_GMAC_STAT_MLTCOL 0x0200 171 #define PCH_GBE_TXD_GMAC_STAT_CRSER 0x0100 172 #define PCH_GBE_TXD_GMAC_STAT_TLNG 0x0080 173 #define PCH_GBE_TXD_GMAC_STAT_TSHRT 0x0040 174 #define PCH_GBE_TXD_GMAC_STAT_LTCOL 0x0020 175 #define PCH_GBE_TXD_GMAC_STAT_TFUNDFLW 0x0010 176 177 /** 178 * struct pch_gbe_rx_desc - Receive Descriptor 179 * @buffer_addr: RX Frame Buffer Address 180 * @tcp_ip_status: TCP/IP Accelerator Status 181 * @rx_words_eob: RX word count and Byte position 182 * @gbec_status: GMAC Status 183 * @dma_status: DMA Status 184 * @reserved1: Reserved 185 * @reserved2: Reserved 186 */ 187 struct pch_gbe_rx_desc { 188 u32 buffer_addr; 189 u32 tcp_ip_status; 190 u16 rx_words_eob; 191 u16 gbec_status; 192 u8 dma_status; 193 u8 reserved1; 194 u16 reserved2; 195 }; 196 197 /** 198 * struct pch_gbe_tx_desc - Transmit Descriptor 199 * @buffer_addr: TX Frame Buffer Address 200 * @length: Data buffer length 201 * @reserved1: Reserved 202 * @tx_words_eob: TX word count and Byte position 203 * @tx_frame_ctrl: TX Frame Control 204 * @dma_status: DMA Status 205 * @reserved2: Reserved 206 * @gbec_status: GMAC Status 207 */ 208 struct pch_gbe_tx_desc { 209 u32 buffer_addr; 210 u16 length; 211 u16 reserved1; 212 u16 tx_words_eob; 213 u16 tx_frame_ctrl; 214 u8 dma_status; 215 u8 reserved2; 216 u16 gbec_status; 217 }; 218 219 /** 220 * pch_gbe_regs_mac_adr - structure holding values of mac address registers 221 * 222 * @high Denotes the 1st to 4th byte from the initial of MAC address 223 * @low Denotes the 5th to 6th byte from the initial of MAC address 224 */ 225 struct pch_gbe_regs_mac_adr { 226 u32 high; 227 u32 low; 228 }; 229 230 /** 231 * pch_gbe_regs - structure holding values of MAC registers 232 */ 233 struct pch_gbe_regs { 234 u32 int_st; 235 u32 int_en; 236 u32 mode; 237 u32 reset; 238 u32 tcpip_acc; 239 u32 ex_list; 240 u32 int_st_hold; 241 u32 phy_int_ctrl; 242 u32 mac_rx_en; 243 u32 rx_fctrl; 244 u32 pause_req; 245 u32 rx_mode; 246 u32 tx_mode; 247 u32 rx_fifo_st; 248 u32 tx_fifo_st; 249 u32 tx_fid; 250 u32 tx_result; 251 u32 pause_pkt1; 252 u32 pause_pkt2; 253 u32 pause_pkt3; 254 u32 pause_pkt4; 255 u32 pause_pkt5; 256 u32 reserve[2]; 257 struct pch_gbe_regs_mac_adr mac_adr[16]; 258 u32 addr_mask; 259 u32 miim; 260 u32 mac_addr_load; 261 u32 rgmii_st; 262 u32 rgmii_ctrl; 263 u32 reserve3[3]; 264 u32 dma_ctrl; 265 u32 reserve4[3]; 266 u32 rx_dsc_base; 267 u32 rx_dsc_size; 268 u32 rx_dsc_hw_p; 269 u32 rx_dsc_hw_p_hld; 270 u32 rx_dsc_sw_p; 271 u32 reserve5[3]; 272 u32 tx_dsc_base; 273 u32 tx_dsc_size; 274 u32 tx_dsc_hw_p; 275 u32 tx_dsc_hw_p_hld; 276 u32 tx_dsc_sw_p; 277 u32 reserve6[3]; 278 u32 rx_dma_st; 279 u32 tx_dma_st; 280 u32 reserve7[2]; 281 u32 wol_st; 282 u32 wol_ctrl; 283 u32 wol_addr_mask; 284 }; 285 286 struct pch_gbe_priv { 287 struct pch_gbe_rx_desc rx_desc[PCH_GBE_DESC_NUM]; 288 struct pch_gbe_tx_desc tx_desc[PCH_GBE_DESC_NUM]; 289 char rx_buff[PCH_GBE_DESC_NUM][PCH_GBE_RX_FRAME_LEN]; 290 struct phy_device *phydev; 291 struct mii_dev *bus; 292 struct pch_gbe_regs *mac_regs; 293 pci_dev_t bdf; 294 int rx_idx; 295 int tx_idx; 296 }; 297 298 #endif /* _PCH_GBE_H_ */ 299