drivers/net/fm/init.c

   1 /*
   2  * Copyright 2011 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  17  * MA 02111-1307 USA
  18  */
  19 #include <common.h>
  20 #include <asm/io.h>
  21 #include <asm/fsl_serdes.h>
  22
  23 #include "fm.h"
  24
  25 struct fm_eth_info fm_info[] = {
  26 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 1)
  27         FM_DTSEC_INFO_INITIALIZER(1, 1),
  28 #endif
  29 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 2)
  30         FM_DTSEC_INFO_INITIALIZER(1, 2),
  31 #endif
  32 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 3)
  33         FM_DTSEC_INFO_INITIALIZER(1, 3),
  34 #endif
  35 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 4)
  36         FM_DTSEC_INFO_INITIALIZER(1, 4),
  37 #endif
  38 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 5)
  39         FM_DTSEC_INFO_INITIALIZER(1, 5),
  40 #endif
  41 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 6)
  42         FM_DTSEC_INFO_INITIALIZER(1, 6),
  43 #endif
  44 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 7)
  45         FM_DTSEC_INFO_INITIALIZER(1, 9),
  46 #endif
  47 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 8)
  48         FM_DTSEC_INFO_INITIALIZER(1, 10),
  49 #endif
  50 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 1)
  51         FM_DTSEC_INFO_INITIALIZER(2, 1),
  52 #endif
  53 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 2)
  54         FM_DTSEC_INFO_INITIALIZER(2, 2),
  55 #endif
  56 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 3)
  57         FM_DTSEC_INFO_INITIALIZER(2, 3),
  58 #endif
  59 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 4)
  60         FM_DTSEC_INFO_INITIALIZER(2, 4),
  61 #endif
  62 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 5)
  63         FM_DTSEC_INFO_INITIALIZER(2, 5),
  64 #endif
  65 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 6)
  66         FM_DTSEC_INFO_INITIALIZER(2, 6),
  67 #endif
  68 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 7)
  69         FM_DTSEC_INFO_INITIALIZER(2, 9),
  70 #endif
  71 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 8)
  72         FM_DTSEC_INFO_INITIALIZER(2, 10),
  73 #endif
  74 #if (CONFIG_SYS_NUM_FM1_10GEC >= 1)
  75         FM_TGEC_INFO_INITIALIZER(1, 1),
  76 #endif
  77 #if (CONFIG_SYS_NUM_FM2_10GEC >= 1)
  78         FM_TGEC_INFO_INITIALIZER(2, 1),
  79 #endif
  80 };
  81
  82 int fm_standard_init(bd_t *bis)
  83 {
  84         int i;
  85         struct ccsr_fman *reg;
  86
  87         reg = (void *)CONFIG_SYS_FSL_FM1_ADDR;
  88         if (fm_init_common(0, reg))
  89                 return 0;
  90
  91         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
  92                 if ((fm_info[i].enabled) && (fm_info[i].index == 1))
  93                         fm_eth_initialize(reg, &fm_info[i]);
  94         }
  95
  96 #if (CONFIG_SYS_NUM_FMAN == 2)
  97         reg = (void *)CONFIG_SYS_FSL_FM2_ADDR;
  98         if (fm_init_common(1, reg))
  99                 return 0;
 100
 101         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 102                 if ((fm_info[i].enabled) && (fm_info[i].index == 2))
 103                         fm_eth_initialize(reg, &fm_info[i]);
 104         }
 105 #endif
 106
 107         return 1;
 108 }
 109
 110 /* simple linear search to map from port to array index */
 111 static int fm_port_to_index(enum fm_port port)
 112 {
 113         int i;
 114
 115         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 116                 if (fm_info[i].port == port)
 117                         return i;
 118         }
 119
 120         return -1;
 121 }
 122
 123 /*
 124  * Determine if an interface is actually active based on HW config
 125  * we expect fman_port_enet_if() to report PHY_INTERFACE_MODE_NONE if
 126  * the interface is not active based on HW cfg of the SoC
 127  */
 128 void fman_enet_init(void)
 129 {
 130         int i;
 131
 132         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 133                 phy_interface_t enet_if;
 134
 135                 enet_if = fman_port_enet_if(fm_info[i].port);
 136                 if (enet_if != PHY_INTERFACE_MODE_NONE) {
 137                         fm_info[i].enabled = 1;
 138                         fm_info[i].enet_if = enet_if;
 139                 } else {
 140                         fm_info[i].enabled = 0;
 141                 }
 142         }
 143
 144         return ;
 145 }
 146
 147 void fm_disable_port(enum fm_port port)
 148 {
 149         int i = fm_port_to_index(port);
 150
 151         fm_info[i].enabled = 0;
 152         fman_disable_port(port);
 153 }
 154
 155 void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus)
 156 {
 157         int i = fm_port_to_index(port);
 158
 159         if (i == -1)
 160                 return;
 161
 162         fm_info[i].bus = bus;
 163 }
 164
 165 void fm_info_set_phy_address(enum fm_port port, int address)
 166 {
 167         int i = fm_port_to_index(port);
 168
 169         if (i == -1)
 170                 return;
 171
 172         fm_info[i].phy_addr = address;
 173 }
 174
 175 /*
 176  * Returns the PHY address for a given Fman port
 177  *
 178  * The port must be set via a prior call to fm_info_set_phy_address().
 179  * A negative error code is returned if the port is invalid.
 180  */
 181 int fm_info_get_phy_address(enum fm_port port)
 182 {
 183         int i = fm_port_to_index(port);
 184
 185         if (i == -1)
 186                 return -1;
 187
 188         return fm_info[i].phy_addr;
 189 }
 190
 191 /*
 192  * Returns the type of the data interface between the given MAC and its PHY.
 193  * This is typically determined by the RCW.
 194  */
 195 phy_interface_t fm_info_get_enet_if(enum fm_port port)
 196 {
 197         int i = fm_port_to_index(port);
 198
 199         if (i == -1)
 200                 return PHY_INTERFACE_MODE_NONE;
 201
 202         if (fm_info[i].enabled)
 203                 return fm_info[i].enet_if;
 204
 205         return PHY_INTERFACE_MODE_NONE;
 206 }
 207
 208 static void
 209 __def_board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
 210                                 enum fm_port port, int offset)
 211 {
 212         return ;
 213 }
 214
 215 void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
 216                                 enum fm_port port, int offset)
 217          __attribute__((weak, alias("__def_board_ft_fman_fixup_port")));
 218
 219 static void ft_fixup_port(void *blob, struct fm_eth_info *info, char *prop)
 220 {
 221         int off;
 222         uint32_t ph;
 223         phys_addr_t paddr = CONFIG_SYS_CCSRBAR_PHYS + info->compat_offset;
 224         u64 dtsec1_addr = (u64)CONFIG_SYS_CCSRBAR_PHYS +
 225                                 CONFIG_SYS_FSL_FM1_DTSEC1_OFFSET;
 226
 227         off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
 228
 229         if (info->enabled) {
 230                 fdt_fixup_phy_connection(blob, off, info->enet_if);
 231                 board_ft_fman_fixup_port(blob, prop, paddr, info->port, off);
 232                 return ;
 233         }
 234
 235         /* board code might have caused offset to change */
 236         off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
 237
 238         /* Don't disable FM1-DTSEC1 MAC as its used for MDIO */
 239         if (paddr != dtsec1_addr)
 240                 fdt_status_disabled(blob, off); /* disable the MAC node */
 241
 242         /* disable the fsl,dpa-ethernet node that points to the MAC */
 243         ph = fdt_get_phandle(blob, off);
 244         do_fixup_by_prop(blob, "fsl,fman-mac", &ph, sizeof(ph),
 245                 "status", "disabled", strlen("disabled") + 1, 1);
 246 }
 247
 248 void fdt_fixup_fman_ethernet(void *blob)
 249 {
 250         int i;
 251
 252         for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
 253                 if (fm_info[i].type == FM_ETH_1G_E)
 254                         ft_fixup_port(blob, &fm_info[i], "fsl,fman-1g-mac");
 255                 else
 256                         ft_fixup_port(blob, &fm_info[i], "fsl,fman-10g-mac");
 257         }
 258 }