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