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