board/freescale/b4860qds/eth_b4860qds.c

   1 /*
   2  * Copyright 2012 Freescale Semiconductor, Inc.
   3  * Author: Sandeep Kumar Singh <sandeep@freescale.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /* This file is based on board/freescale/corenet_ds/eth_superhydra.c */
   9
  10 /*
  11  * This file handles the board muxing between the Fman Ethernet MACs and
  12  * the RGMII/SGMII/XGMII PHYs on a Freescale B4860 "Centaur". The SGMII
  13  * PHYs are the two on-board 1Gb ports. There are no RGMII PHY on board.
  14  * The 10Gb XGMII PHY is provided via the XAUI riser card. There is only
  15  * one Fman device on B4860. The SERDES configuration is used to determine
  16  * where the SGMII and XAUI cards exist, and also which Fman MACs are routed
  17  * to which PHYs. So for a given Fman MAC, there is one and only PHY it
  18  * connects to. MACs cannot be routed to PHYs dynamically. This configuration
  19  * is done at boot time by reading SERDES protocol from RCW.
  20  */
  21
  22 #include <common.h>
  23 #include <netdev.h>
  24 #include <asm/fsl_serdes.h>
  25 #include <fm_eth.h>
  26 #include <fsl_mdio.h>
  27 #include <malloc.h>
  28 #include <fdt_support.h>
  29 #include <asm/fsl_dtsec.h>
  30
  31 #include "../common/ngpixis.h"
  32 #include "../common/fman.h"
  33 #include "../common/qixis.h"
  34 #include "b4860qds_qixis.h"
  35
  36 #define EMI_NONE       0xFFFFFFFF
  37
  38 #ifdef CONFIG_FMAN_ENET
  39
  40 /*
  41  * Mapping of all 16 SERDES lanes to board slots. A value n(>0) will mean that
  42  * lane at index is mapped to slot number n. A value of '0' will mean
  43  * that the mapping must be determined dynamically, or that the lane maps to
  44  * something other than a board slot
  45  */
  46 static u8 lane_to_slot[] = {
  47         0, 0, 0, 0,
  48         0, 0, 0, 0,
  49         1, 1, 1, 1,
  50         0, 0, 0, 0
  51 };
  52
  53 /*
  54  * This function initializes the lane_to_slot[] array. It reads RCW to check
  55  * if Serdes2{E,F,G,H} is configured as slot 2 or as SFP and initializes
  56  * lane_to_slot[] accordingly
  57  */
  58 static void initialize_lane_to_slot(void)
  59 {
  60         unsigned int  serdes2_prtcl;
  61         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  62         serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
  63                 FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
  64         serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
  65         debug("Initializing lane to slot: Serdes2 protocol: %x\n",
  66                         serdes2_prtcl);
  67
  68         switch (serdes2_prtcl) {
  69         case 0x18:
  70                 /*
  71                  * Configuration:
  72                  * SERDES: 2
  73                  * Lanes: A,B,C,D: SGMII
  74                  * Lanes: E,F: Aur
  75                  * Lanes: G,H: SRIO
  76                  */
  77         case 0x91:
  78                 /*
  79                  * Configuration:
  80                  * SERDES: 2
  81                  * Lanes: A,B: SGMII
  82                  * Lanes: C,D: SRIO2
  83                  * Lanes: E,F,G,H: XAUI2
  84                  */
  85         case 0x93:
  86                 /*
  87                  * Configuration:
  88                  * SERDES: 2
  89                  * Lanes: A,B,C,D: SGMII
  90                  * Lanes: E,F,G,H: XAUI2
  91                  */
  92         case 0x98:
  93                 /*
  94                  * Configuration:
  95                  * SERDES: 2
  96                  * Lanes: A,B,C,D: XAUI2
  97                  * Lanes: E,F,G,H: XAUI2
  98                  */
  99         case 0x9a:
 100                 /*
 101                  * Configuration:
 102                  * SERDES: 2
 103                  * Lanes: A,B: PCI
 104                  * Lanes: C,D: SGMII
 105                  * Lanes: E,F,G,H: XAUI2
 106                  */
 107         case 0x9e:
 108                 /*
 109                  * Configuration:
 110                  * SERDES: 2
 111                  * Lanes: A,B,C,D: PCI
 112                  * Lanes: E,F,G,H: XAUI2
 113                  */
 114         case 0xb2:
 115                 /*
 116                  * Configuration:
 117                  * SERDES: 2
 118                  * Lanes: A,B,C,D: PCI
 119                  * Lanes: E,F: SGMII 3&4
 120                  * Lanes: G,H: XFI
 121                  */
 122         case 0xc2:
 123                 /*
 124                  * Configuration:
 125                  * SERDES: 2
 126                  * Lanes: A,B: SGMII
 127                  * Lanes: C,D: SRIO2
 128                  * Lanes: E,F,G,H: XAUI2
 129                  */
 130                 lane_to_slot[12] = 2;
 131                 lane_to_slot[13] = lane_to_slot[12];
 132                 lane_to_slot[14] = lane_to_slot[12];
 133                 lane_to_slot[15] = lane_to_slot[12];
 134                 break;
 135
 136         default:
 137                 printf("Fman: Unsupported SerDes2 Protocol 0x%02x\n",
 138                                 serdes2_prtcl);
 139                         break;
 140         }
 141         return;
 142 }
 143
 144 #endif /* #ifdef CONFIG_FMAN_ENET */
 145
 146 int board_eth_init(bd_t *bis)
 147 {
 148 #ifdef CONFIG_FMAN_ENET
 149         struct memac_mdio_info memac_mdio_info;
 150         struct memac_mdio_info tg_memac_mdio_info;
 151         unsigned int i;
 152         unsigned int  serdes1_prtcl, serdes2_prtcl;
 153         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 154         serdes1_prtcl = in_be32(&gur->rcwsr[4]) &
 155                 FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
 156         if (!serdes1_prtcl) {
 157                 printf("SERDES1 is not enabled\n");
 158                 return 0;
 159         }
 160         serdes1_prtcl >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
 161         debug("Using SERDES1 Protocol: 0x%x:\n", serdes1_prtcl);
 162
 163         serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
 164                 FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
 165         if (!serdes2_prtcl) {
 166                 printf("SERDES2 is not enabled\n");
 167                 return 0;
 168         }
 169         serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
 170         debug("Using SERDES2 Protocol: 0x%x:\n", serdes2_prtcl);
 171
 172         printf("Initializing Fman\n");
 173
 174         initialize_lane_to_slot();
 175
 176         memac_mdio_info.regs =
 177                 (struct memac_mdio_controller *)CONFIG_SYS_FM1_DTSEC_MDIO_ADDR;
 178         memac_mdio_info.name = DEFAULT_FM_MDIO_NAME;
 179
 180         /* Register the real 1G MDIO bus */
 181         fm_memac_mdio_init(bis, &memac_mdio_info);
 182
 183         tg_memac_mdio_info.regs =
 184                 (struct memac_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR;
 185         tg_memac_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME;
 186
 187         /* Register the real 10G MDIO bus */
 188         fm_memac_mdio_init(bis, &tg_memac_mdio_info);
 189
 190         /*
 191          * Program the two on board DTSEC PHY addresses assuming that they are
 192          * all SGMII. RGMII is not supported on this board. Setting SGMII 5 and
 193          * 6 to on board SGMII phys
 194          */
 195         fm_info_set_phy_address(FM1_DTSEC5, CONFIG_SYS_FM1_DTSEC5_PHY_ADDR);
 196         fm_info_set_phy_address(FM1_DTSEC6, CONFIG_SYS_FM1_DTSEC6_PHY_ADDR);
 197
 198         switch (serdes1_prtcl) {
 199         case 0x2a:
 200                 /* Serdes 1: A-B SGMII, Configuring DTSEC 5 and 6 */
 201                 debug("Setting phy addresses for FM1_DTSEC5: %x and"
 202                         "FM1_DTSEC6: %x\n", CONFIG_SYS_FM1_DTSEC5_PHY_ADDR,
 203                         CONFIG_SYS_FM1_DTSEC6_PHY_ADDR);
 204                 /* Fixing Serdes clock by programming FPGA register */
 205                 QIXIS_WRITE(brdcfg[4], QIXIS_SRDS1CLK_125);
 206                 fm_info_set_phy_address(FM1_DTSEC5,
 207                                 CONFIG_SYS_FM1_DTSEC5_PHY_ADDR);
 208                 fm_info_set_phy_address(FM1_DTSEC6,
 209                                 CONFIG_SYS_FM1_DTSEC6_PHY_ADDR);
 210                 break;
 211 #ifdef CONFIG_PPC_B4420
 212         case 0x18:
 213                 /* Serdes 1: A-D SGMII, Configuring on board dual SGMII Phy */
 214                 debug("Setting phy addresses for FM1_DTSEC3: %x and"
 215                         "FM1_DTSEC4: %x\n", CONFIG_SYS_FM1_DTSEC5_PHY_ADDR,
 216                         CONFIG_SYS_FM1_DTSEC6_PHY_ADDR);
 217                 /* Fixing Serdes clock by programming FPGA register */
 218                 QIXIS_WRITE(brdcfg[4], QIXIS_SRDS1CLK_125);
 219                 fm_info_set_phy_address(FM1_DTSEC3,
 220                                 CONFIG_SYS_FM1_DTSEC5_PHY_ADDR);
 221                 fm_info_set_phy_address(FM1_DTSEC4,
 222                                 CONFIG_SYS_FM1_DTSEC6_PHY_ADDR);
 223                 break;
 224 #endif
 225         default:
 226                 printf("Fman:  Unsupported SerDes1 Protocol 0x%02x\n",
 227                                 serdes1_prtcl);
 228                 break;
 229         }
 230         switch (serdes2_prtcl) {
 231         case 0x18:
 232                 debug("Setting phy addresses on SGMII Riser card for"
 233                                 "FM1_DTSEC ports: \n");
 234                 fm_info_set_phy_address(FM1_DTSEC1,
 235                                 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
 236                 fm_info_set_phy_address(FM1_DTSEC2,
 237                                 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
 238                 fm_info_set_phy_address(FM1_DTSEC3,
 239                                 CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR);
 240                 fm_info_set_phy_address(FM1_DTSEC4,
 241                                 CONFIG_SYS_FM1_DTSEC4_RISER_PHY_ADDR);
 242                 break;
 243         case 0x49:
 244                 debug("Setting phy addresses on SGMII Riser card for"
 245                                 "FM1_DTSEC ports: \n");
 246                 fm_info_set_phy_address(FM1_DTSEC1,
 247                                 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
 248                 fm_info_set_phy_address(FM1_DTSEC2,
 249                                 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
 250                 fm_info_set_phy_address(FM1_DTSEC3,
 251                                 CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR);
 252                 break;
 253         case 0x8d:
 254         case 0xb2:
 255                 debug("Setting phy addresses on SGMII Riser card for"
 256                                 "FM1_DTSEC ports: \n");
 257                 fm_info_set_phy_address(FM1_DTSEC3,
 258                                 CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR);
 259                 fm_info_set_phy_address(FM1_DTSEC4,
 260                                 CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR);
 261                 break;
 262         case 0x98:
 263                 /* XAUI in Slot1 and Slot2 */
 264                 debug("Setting phy addresses on B4860 QDS AMC2PEX-2S for FM1_10GEC1: %x\n",
 265                       CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
 266                 fm_info_set_phy_address(FM1_10GEC1,
 267                                         CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
 268                 debug("Setting phy addresses on B4860 QDS AMC2PEX-2S for FM1_10GEC2: %x\n",
 269                       CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
 270                 fm_info_set_phy_address(FM1_10GEC2,
 271                                         CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
 272                 break;
 273         case 0x9E:
 274                 /* XAUI in Slot2 */
 275                 debug("Setting phy addresses on B4860 QDS AMC2PEX-2S for FM1_10GEC2: %x\n",
 276                       CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
 277                 fm_info_set_phy_address(FM1_10GEC2,
 278                                         CONFIG_SYS_FM1_10GEC2_PHY_ADDR);
 279                 break;
 280         default:
 281                 printf("Fman:  Unsupported SerDes2 Protocol 0x%02x\n",
 282                                 serdes2_prtcl);
 283                 break;
 284         }
 285
 286         for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
 287                 int idx = i - FM1_DTSEC1;
 288
 289                 switch (fm_info_get_enet_if(i)) {
 290                 case PHY_INTERFACE_MODE_SGMII:
 291                         fm_info_set_mdio(i,
 292                                 miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
 293                         break;
 294                 case PHY_INTERFACE_MODE_NONE:
 295                         fm_info_set_phy_address(i, 0);
 296                         break;
 297                 default:
 298                         printf("Fman1: DTSEC%u set to unknown interface %i\n",
 299                                         idx + 1, fm_info_get_enet_if(i));
 300                         fm_info_set_phy_address(i, 0);
 301                         break;
 302                 }
 303         }
 304
 305         for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) {
 306                 int idx = i - FM1_10GEC1;
 307
 308                 switch (fm_info_get_enet_if(i)) {
 309                 case PHY_INTERFACE_MODE_XGMII:
 310                         fm_info_set_mdio(i,
 311                                          miiphy_get_dev_by_name(DEFAULT_FM_TGEC_MDIO_NAME));
 312                         break;
 313                 default:
 314                         printf("Fman1: 10GSEC%u set to unknown interface %i\n",
 315                                idx + 1, fm_info_get_enet_if(i));
 316                         fm_info_set_phy_address(i, 0);
 317                         break;
 318                 }
 319         }
 320
 321
 322         cpu_eth_init(bis);
 323 #endif
 324
 325         return pci_eth_init(bis);
 326 }
 327
 328 void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
 329                               enum fm_port port, int offset)
 330 {
 331         int phy;
 332         char alias[32];
 333
 334         if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_SGMII) {
 335                 phy = fm_info_get_phy_address(port);
 336
 337                 sprintf(alias, "phy_sgmii_%x", phy);
 338                 fdt_set_phy_handle(fdt, compat, addr, alias);
 339         }
 340 }
 341
 342 void fdt_fixup_board_enet(void *fdt)
 343 {
 344         int i;
 345         char alias[32];
 346
 347         for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
 348                 switch (fm_info_get_enet_if(i)) {
 349                 case PHY_INTERFACE_MODE_NONE:
 350                         sprintf(alias, "ethernet%u", i);
 351                         fdt_status_disabled_by_alias(fdt, alias);
 352                         break;
 353                 default:
 354                         break;
 355                 }
 356         }
 357 }