drivers/net/fm/init.c

   1 /*
   2  * Copyright 2011-2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <errno.h>
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <fdt_support.h>
  10 #include <fsl_mdio.h>
  11 #ifdef CONFIG_FSL_LAYERSCAPE
  12 #include <asm/arch/fsl_serdes.h>
  13 #else
  14 #include <asm/fsl_serdes.h>
  15 #endif
  16
  17 #include "fm.h"
  18
  19 struct fm_eth_info fm_info[] = {
  20 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 1)
  21         FM_DTSEC_INFO_INITIALIZER(1, 1),
  22 #endif
  23 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 2)
  24         FM_DTSEC_INFO_INITIALIZER(1, 2),
  25 #endif
  26 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 3)
  27         FM_DTSEC_INFO_INITIALIZER(1, 3),
  28 #endif
  29 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 4)
  30         FM_DTSEC_INFO_INITIALIZER(1, 4),
  31 #endif
  32 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 5)
  33         FM_DTSEC_INFO_INITIALIZER(1, 5),
  34 #endif
  35 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 6)
  36         FM_DTSEC_INFO_INITIALIZER(1, 6),
  37 #endif
  38 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 7)
  39         FM_DTSEC_INFO_INITIALIZER(1, 9),
  40 #endif
  41 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 8)
  42         FM_DTSEC_INFO_INITIALIZER(1, 10),
  43 #endif
  44 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 1)
  45         FM_DTSEC_INFO_INITIALIZER(2, 1),
  46 #endif
  47 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 2)
  48         FM_DTSEC_INFO_INITIALIZER(2, 2),
  49 #endif
  50 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 3)
  51         FM_DTSEC_INFO_INITIALIZER(2, 3),
  52 #endif
  53 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 4)
  54         FM_DTSEC_INFO_INITIALIZER(2, 4),
  55 #endif
  56 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 5)
  57         FM_DTSEC_INFO_INITIALIZER(2, 5),
  58 #endif
  59 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 6)
  60         FM_DTSEC_INFO_INITIALIZER(2, 6),
  61 #endif
  62 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 7)
  63         FM_DTSEC_INFO_INITIALIZER(2, 9),
  64 #endif
  65 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 8)
  66         FM_DTSEC_INFO_INITIALIZER(2, 10),
  67 #endif
  68 #if (CONFIG_SYS_NUM_FM1_10GEC >= 1)
  69         FM_TGEC_INFO_INITIALIZER(1, 1),
  70 #endif
  71 #if (CONFIG_SYS_NUM_FM1_10GEC >= 2)
  72         FM_TGEC_INFO_INITIALIZER(1, 2),
  73 #endif
  74 #if (CONFIG_SYS_NUM_FM1_10GEC >= 3)
  75         FM_TGEC_INFO_INITIALIZER2(1, 3),
  76 #endif
  77 #if (CONFIG_SYS_NUM_FM1_10GEC >= 4)
  78         FM_TGEC_INFO_INITIALIZER2(1, 4),
  79 #endif
  80 #if (CONFIG_SYS_NUM_FM2_10GEC >= 1)
  81         FM_TGEC_INFO_INITIALIZER(2, 1),
  82 #endif
  83 #if (CONFIG_SYS_NUM_FM2_10GEC >= 2)
  84         FM_TGEC_INFO_INITIALIZER(2, 2),
  85 #endif
  86 };
  87
  88 int fm_standard_init(bd_t *bis)
  89 {
  90         int i;
  91         struct ccsr_fman *reg;
  92
  93         reg = (void *)CONFIG_SYS_FSL_FM1_ADDR;
  94         if (fm_init_common(0, reg))
  95                 return 0;
  96
  97         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
  98                 if ((fm_info[i].enabled) && (fm_info[i].index == 1))
  99                         fm_eth_initialize(reg, &fm_info[i]);
 100         }
 101
 102 #if (CONFIG_SYS_NUM_FMAN == 2)
 103         reg = (void *)CONFIG_SYS_FSL_FM2_ADDR;
 104         if (fm_init_common(1, reg))
 105                 return 0;
 106
 107         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 108                 if ((fm_info[i].enabled) && (fm_info[i].index == 2))
 109                         fm_eth_initialize(reg, &fm_info[i]);
 110         }
 111 #endif
 112
 113         return 1;
 114 }
 115
 116 /* simple linear search to map from port to array index */
 117 static int fm_port_to_index(enum fm_port port)
 118 {
 119         int i;
 120
 121         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 122                 if (fm_info[i].port == port)
 123                         return i;
 124         }
 125
 126         return -1;
 127 }
 128
 129 /*
 130  * Determine if an interface is actually active based on HW config
 131  * we expect fman_port_enet_if() to report PHY_INTERFACE_MODE_NONE if
 132  * the interface is not active based on HW cfg of the SoC
 133  */
 134 void fman_enet_init(void)
 135 {
 136         int i;
 137
 138         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 139                 phy_interface_t enet_if;
 140
 141                 enet_if = fman_port_enet_if(fm_info[i].port);
 142                 if (enet_if != PHY_INTERFACE_MODE_NONE) {
 143                         fm_info[i].enabled = 1;
 144                         fm_info[i].enet_if = enet_if;
 145                 } else {
 146                         fm_info[i].enabled = 0;
 147                 }
 148         }
 149
 150         return ;
 151 }
 152
 153 void fm_disable_port(enum fm_port port)
 154 {
 155         int i = fm_port_to_index(port);
 156
 157         if (i == -1)
 158                 return;
 159
 160         fm_info[i].enabled = 0;
 161 #ifndef CONFIG_SYS_FMAN_V3
 162         fman_disable_port(port);
 163 #endif
 164 }
 165
 166 void fm_enable_port(enum fm_port port)
 167 {
 168         int i = fm_port_to_index(port);
 169
 170         if (i == -1)
 171                 return;
 172
 173         fm_info[i].enabled = 1;
 174         fman_enable_port(port);
 175 }
 176
 177 void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus)
 178 {
 179         int i = fm_port_to_index(port);
 180
 181         if (i == -1)
 182                 return;
 183
 184         fm_info[i].bus = bus;
 185 }
 186
 187 void fm_info_set_phy_address(enum fm_port port, int address)
 188 {
 189         int i = fm_port_to_index(port);
 190
 191         if (i == -1)
 192                 return;
 193
 194         fm_info[i].phy_addr = address;
 195 }
 196
 197 /*
 198  * Returns the PHY address for a given Fman port
 199  *
 200  * The port must be set via a prior call to fm_info_set_phy_address().
 201  * A negative error code is returned if the port is invalid.
 202  */
 203 int fm_info_get_phy_address(enum fm_port port)
 204 {
 205         int i = fm_port_to_index(port);
 206
 207         if (i == -1)
 208                 return -1;
 209
 210         return fm_info[i].phy_addr;
 211 }
 212
 213 /*
 214  * Returns the type of the data interface between the given MAC and its PHY.
 215  * This is typically determined by the RCW.
 216  */
 217 phy_interface_t fm_info_get_enet_if(enum fm_port port)
 218 {
 219         int i = fm_port_to_index(port);
 220
 221         if (i == -1)
 222                 return PHY_INTERFACE_MODE_NONE;
 223
 224         if (fm_info[i].enabled)
 225                 return fm_info[i].enet_if;
 226
 227         return PHY_INTERFACE_MODE_NONE;
 228 }
 229
 230 static void
 231 __def_board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
 232                                 enum fm_port port, int offset)
 233 {
 234         return ;
 235 }
 236
 237 void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
 238                                 enum fm_port port, int offset)
 239          __attribute__((weak, alias("__def_board_ft_fman_fixup_port")));
 240
 241 int ft_fixup_port(void *blob, struct fm_eth_info *info, char *prop)
 242 {
 243         int off;
 244         uint32_t ph;
 245         phys_addr_t paddr = CONFIG_SYS_CCSRBAR_PHYS + info->compat_offset;
 246 #ifndef CONFIG_SYS_FMAN_V3
 247         u64 dtsec1_addr = (u64)CONFIG_SYS_CCSRBAR_PHYS +
 248                                 CONFIG_SYS_FSL_FM1_DTSEC1_OFFSET;
 249 #endif
 250
 251         off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
 252         if (off == -FDT_ERR_NOTFOUND)
 253                 return -EINVAL;
 254
 255         if (info->enabled) {
 256                 fdt_fixup_phy_connection(blob, off, info->enet_if);
 257                 board_ft_fman_fixup_port(blob, prop, paddr, info->port, off);
 258                 return 0;
 259         }
 260
 261 #ifdef CONFIG_SYS_FMAN_V3
 262 #ifndef CONFIG_FSL_FM_10GEC_REGULAR_NOTATION
 263         /*
 264          * On T2/T4 SoCs, physically FM1_DTSEC9 and FM1_10GEC1 use the same
 265          * dual-role MAC, when FM1_10GEC1 is enabled and  FM1_DTSEC9
 266          * is disabled, ensure that the dual-role MAC is not disabled,
 267          * ditto for other dual-role MACs.
 268          */
 269         if (((info->port == FM1_DTSEC9) && (PORT_IS_ENABLED(FM1_10GEC1)))  ||
 270             ((info->port == FM1_DTSEC10) && (PORT_IS_ENABLED(FM1_10GEC2))) ||
 271             ((info->port == FM1_DTSEC1) && (PORT_IS_ENABLED(FM1_10GEC3)))  ||
 272             ((info->port == FM1_DTSEC2) && (PORT_IS_ENABLED(FM1_10GEC4)))  ||
 273             ((info->port == FM1_10GEC1) && (PORT_IS_ENABLED(FM1_DTSEC9)))  ||
 274             ((info->port == FM1_10GEC2) && (PORT_IS_ENABLED(FM1_DTSEC10))) ||
 275             ((info->port == FM1_10GEC3) && (PORT_IS_ENABLED(FM1_DTSEC1)))  ||
 276             ((info->port == FM1_10GEC4) && (PORT_IS_ENABLED(FM1_DTSEC2)))
 277 #if (CONFIG_SYS_NUM_FMAN == 2)
 278                                                                                 ||
 279             ((info->port == FM2_DTSEC9) && (PORT_IS_ENABLED(FM2_10GEC1)))       ||
 280             ((info->port == FM2_DTSEC10) && (PORT_IS_ENABLED(FM2_10GEC2)))      ||
 281             ((info->port == FM2_10GEC1) && (PORT_IS_ENABLED(FM2_DTSEC9)))       ||
 282             ((info->port == FM2_10GEC2) && (PORT_IS_ENABLED(FM2_DTSEC10)))
 283 #endif
 284 #else
 285         /* FM1_DTSECx and FM1_10GECx use the same dual-role MAC */
 286         if (((info->port == FM1_DTSEC1) && (PORT_IS_ENABLED(FM1_10GEC1)))  ||
 287             ((info->port == FM1_DTSEC2) && (PORT_IS_ENABLED(FM1_10GEC2)))  ||
 288             ((info->port == FM1_DTSEC3) && (PORT_IS_ENABLED(FM1_10GEC3)))  ||
 289             ((info->port == FM1_DTSEC4) && (PORT_IS_ENABLED(FM1_10GEC4)))  ||
 290             ((info->port == FM1_10GEC1) && (PORT_IS_ENABLED(FM1_DTSEC1)))  ||
 291             ((info->port == FM1_10GEC2) && (PORT_IS_ENABLED(FM1_DTSEC2)))  ||
 292             ((info->port == FM1_10GEC3) && (PORT_IS_ENABLED(FM1_DTSEC3)))  ||
 293             ((info->port == FM1_10GEC4) && (PORT_IS_ENABLED(FM1_DTSEC4)))
 294 #endif
 295         )
 296                 return 0;
 297 #endif
 298         /* board code might have caused offset to change */
 299         off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
 300
 301 #ifndef CONFIG_SYS_FMAN_V3
 302         /* Don't disable FM1-DTSEC1 MAC as its used for MDIO */
 303         if (paddr != dtsec1_addr)
 304 #endif
 305                 fdt_status_disabled(blob, off); /* disable the MAC node */
 306
 307         /* disable the fsl,dpa-ethernet node that points to the MAC */
 308         ph = fdt_get_phandle(blob, off);
 309         do_fixup_by_prop(blob, "fsl,fman-mac", &ph, sizeof(ph),
 310                 "status", "disabled", strlen("disabled") + 1, 1);
 311
 312         return 0;
 313 }
 314
 315 void fdt_fixup_fman_ethernet(void *blob)
 316 {
 317         int i;
 318
 319 #ifdef CONFIG_SYS_FMAN_V3
 320         for (i = 0; i < ARRAY_SIZE(fm_info); i++)
 321                 ft_fixup_port(blob, &fm_info[i], "fsl,fman-memac");
 322 #else
 323         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 324                 /* Try the new compatible first.
 325                  * If the node is missing, try the old.
 326                  */
 327                 if (fm_info[i].type == FM_ETH_1G_E) {
 328                         if (ft_fixup_port(blob, &fm_info[i], "fsl,fman-dtsec"))
 329                                 ft_fixup_port(blob, &fm_info[i],
 330                                               "fsl,fman-1g-mac");
 331                 } else {
 332                         if (ft_fixup_port(blob, &fm_info[i], "fsl,fman-tgec"))
 333                                 ft_fixup_port(blob, &fm_info[i],
 334                                               "fsl,fman-10g-mac");
 335                 }
 336         }
 337 #endif
 338 }
 339
 340 /*QSGMII Riser Card can work in SGMII mode, but the PHY address is different.
 341  *This function scans which Riser Card being used(QSGMII or SGMII Riser Card),
 342  *then set the correct PHY address
 343  */
 344 void set_sgmii_phy(struct mii_dev *bus, enum fm_port base_port,
 345                 unsigned int port_num, int phy_base_addr)
 346 {
 347         unsigned int regnum = 0;
 348         int qsgmii;
 349         int i;
 350         int phy_real_addr;
 351
 352         qsgmii = is_qsgmii_riser_card(bus, phy_base_addr, port_num, regnum);
 353
 354         if (!qsgmii)
 355                 return;
 356
 357         for (i = base_port; i < base_port + port_num; i++) {
 358                 if (fm_info_get_enet_if(i) == PHY_INTERFACE_MODE_SGMII) {
 359                         phy_real_addr = phy_base_addr + i - base_port;
 360                         fm_info_set_phy_address(i, phy_real_addr);
 361                 }
 362         }
 363 }
 364
 365 /*to check whether qsgmii riser card is used*/
 366 int is_qsgmii_riser_card(struct mii_dev *bus, int phy_base_addr,
 367                 unsigned int port_num, unsigned regnum)
 368 {
 369         int i;
 370         int val;
 371
 372         if (!bus)
 373                 return 0;
 374
 375         for (i = phy_base_addr; i < phy_base_addr + port_num; i++) {
 376                 val = bus->read(bus, i, MDIO_DEVAD_NONE, regnum);
 377                 if (val != MIIM_TIMEOUT)
 378                         return 1;
 379         }
 380
 381         return 0;
 382 }