target/linux/brcm47xx/patches-2.6.39/700-ssb-gigabit-ethernet-driver.patch

   1 --- a/drivers/net/tg3.c
   2 +++ b/drivers/net/tg3.c
   3 @@ -43,6 +43,7 @@
   4  #include <linux/prefetch.h>
   5  #include <linux/dma-mapping.h>
   6  #include <linux/firmware.h>
   7 +#include <linux/ssb/ssb_driver_gige.h>
   8
   9  #include <net/checksum.h>
  10  #include <net/ip.h>
  11 @@ -488,8 +489,9 @@ static void _tw32_flush(struct tg3 *tp,
  12  static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
  13  {
  14         tp->write32_mbox(tp, off, val);
  15 -       if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
  16 -           !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
  17 +       if ((tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES) ||
  18 +           (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
  19 +            !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND)))
  20                 tp->read32_mbox(tp, off);
  21  }
  22
  23 @@ -499,7 +501,7 @@ static void tg3_write32_tx_mbox(struct t
  24         writel(val, mbox);
  25         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
  26                 writel(val, mbox);
  27 -       if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
  28 +       if ((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) || (tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES))
  29                 readl(mbox);
  30  }
  31
  32 @@ -782,7 +784,7 @@ static void tg3_switch_clocks(struct tg3
  33
  34  #define PHY_BUSY_LOOPS 5000
  35
  36 -static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
  37 +static int __tg3_readphy(struct tg3 *tp, unsigned int phy_addr, int reg, u32 *val)
  38  {
  39         u32 frame_val;
  40         unsigned int loops;
  41 @@ -796,7 +798,7 @@ static int tg3_readphy(struct tg3 *tp, i
  42
  43         *val = 0x0;
  44
  45 -       frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
  46 +       frame_val  = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
  47                       MI_COM_PHY_ADDR_MASK);
  48         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
  49                       MI_COM_REG_ADDR_MASK);
  50 @@ -831,7 +833,12 @@ static int tg3_readphy(struct tg3 *tp, i
  51         return ret;
  52  }
  53
  54 -static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
  55 +static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
  56 +{
  57 +       return __tg3_readphy(tp, tp->phy_addr, reg, val);
  58 +}
  59 +
  60 +static int __tg3_writephy(struct tg3 *tp, unsigned int phy_addr, int reg, u32 val)
  61  {
  62         u32 frame_val;
  63         unsigned int loops;
  64 @@ -847,7 +854,7 @@ static int tg3_writephy(struct tg3 *tp,
  65                 udelay(80);
  66         }
  67
  68 -       frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
  69 +       frame_val  = ((phy_addr << MI_COM_PHY_ADDR_SHIFT) &
  70                       MI_COM_PHY_ADDR_MASK);
  71         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
  72                       MI_COM_REG_ADDR_MASK);
  73 @@ -880,6 +887,11 @@ static int tg3_writephy(struct tg3 *tp,
  74         return ret;
  75  }
  76
  77 +static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
  78 +{
  79 +       return __tg3_writephy(tp, tp->phy_addr, reg, val);
  80 +}
  81 +
  82  static int tg3_bmcr_reset(struct tg3 *tp)
  83  {
  84         u32 phy_control;
  85 @@ -2488,6 +2500,9 @@ static int tg3_nvram_read(struct tg3 *tp
  86  {
  87         int ret;
  88
  89 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)
  90 +               return -ENODEV;
  91 +
  92         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
  93                 return tg3_nvram_read_using_eeprom(tp, offset, val);
  94
  95 @@ -2812,8 +2827,10 @@ static int tg3_power_down_prepare(struct
  96         tg3_frob_aux_power(tp);
  97
  98         /* Workaround for unstable PLL clock */
  99 -       if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
 100 -           (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
 101 +       if ((tp->phy_id & TG3_PHY_ID_MASK) != TG3_PHY_ID_BCM5750_2 &&
 102 +                               /* !!! FIXME !!! */
 103 +           ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
 104 +           (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX))) {
 105                 u32 val = tr32(0x7d00);
 106
 107                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
 108 @@ -3340,6 +3357,14 @@ relink:
 109         if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
 110                 tg3_phy_copper_begin(tp);
 111
 112 +               if (tp->tg3_flags3 & TG3_FLG3_ROBOSWITCH) {
 113 +                       current_link_up = 1;
 114 +                       current_speed = SPEED_1000; /* FIXME */
 115 +                       current_duplex = DUPLEX_FULL;
 116 +                       tp->link_config.active_speed = current_speed;
 117 +                       tp->link_config.active_duplex = current_duplex;
 118 +               }
 119 +
 120                 tg3_readphy(tp, MII_BMSR, &bmsr);
 121                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
 122                     (bmsr & BMSR_LSTATUS))
 123 @@ -6916,6 +6941,11 @@ static int tg3_poll_fw(struct tg3 *tp)
 124         int i;
 125         u32 val;
 126
 127 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 128 +               /* We don't use firmware. */
 129 +               return 0;
 130 +       }
 131 +
 132         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
 133                 /* Wait up to 20ms for init done. */
 134                 for (i = 0; i < 200; i++) {
 135 @@ -7206,6 +7236,14 @@ static int tg3_chip_reset(struct tg3 *tp
 136                 tw32(0x5000, 0x400);
 137         }
 138
 139 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 140 +               /* BCM4785: In order to avoid repercussions from using potentially
 141 +                * defective internal ROM, stop the Rx RISC CPU, which is not
 142 +                * required. */
 143 +               tg3_stop_fw(tp);
 144 +               tg3_halt_cpu(tp, RX_CPU_BASE);
 145 +       }
 146 +
 147         tw32(GRC_MODE, tp->grc_mode);
 148
 149         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
 150 @@ -7360,9 +7398,12 @@ static int tg3_halt_cpu(struct tg3 *tp,
 151                 return -ENODEV;
 152         }
 153
 154 -       /* Clear firmware's nvram arbitration. */
 155 -       if (tp->tg3_flags & TG3_FLAG_NVRAM)
 156 -               tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
 157 +       if (!(tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)) {
 158 +               /* Clear firmware's nvram arbitration. */
 159 +               if (tp->tg3_flags & TG3_FLAG_NVRAM)
 160 +                       tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
 161 +       }
 162 +
 163         return 0;
 164  }
 165
 166 @@ -7425,6 +7466,11 @@ static int tg3_load_5701_a0_firmware_fix
 167         const __be32 *fw_data;
 168         int err, i;
 169
 170 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 171 +               /* We don't use firmware. */
 172 +               return 0;
 173 +       }
 174 +
 175         fw_data = (void *)tp->fw->data;
 176
 177         /* Firmware blob starts with version numbers, followed by
 178 @@ -7483,6 +7529,11 @@ static int tg3_load_tso_firmware(struct
 179         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
 180         int err, i;
 181
 182 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 183 +               /* We don't use firmware. */
 184 +               return 0;
 185 +       }
 186 +
 187         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
 188                 return 0;
 189
 190 @@ -8701,6 +8752,11 @@ static void tg3_timer(unsigned long __op
 191
 192         spin_lock(&tp->lock);
 193
 194 +       if (tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES) {
 195 +               /* BCM4785: Flush posted writes from GbE to host memory. */
 196 +               tr32(HOSTCC_MODE);
 197 +       }
 198 +
 199         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
 200                 /* All of this garbage is because when using non-tagged
 201                  * IRQ status the mailbox/status_block protocol the chip
 202 @@ -10372,6 +10428,11 @@ static int tg3_test_nvram(struct tg3 *tp
 203         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
 204                 return 0;
 205
 206 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 207 +               /* We don't have NVRAM. */
 208 +               return 0;
 209 +       }
 210 +
 211         if (tg3_nvram_read(tp, 0, &magic) != 0)
 212                 return -EIO;
 213
 214 @@ -11253,7 +11314,7 @@ static int tg3_ioctl(struct net_device *
 215                         return -EAGAIN;
 216
 217                 spin_lock_bh(&tp->lock);
 218 -               err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
 219 +               err = __tg3_readphy(tp, data->phy_id & 0x1f, data->reg_num & 0x1f, &mii_regval);
 220                 spin_unlock_bh(&tp->lock);
 221
 222                 data->val_out = mii_regval;
 223 @@ -11271,7 +11332,7 @@ static int tg3_ioctl(struct net_device *
 224                         return -EAGAIN;
 225
 226                 spin_lock_bh(&tp->lock);
 227 -               err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
 228 +               err = __tg3_writephy(tp, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
 229                 spin_unlock_bh(&tp->lock);
 230
 231                 return err;
 232 @@ -11891,6 +11952,12 @@ static void __devinit tg3_get_5717_nvram
 233  /* Chips other than 5700/5701 use the NVRAM for fetching info. */
 234  static void __devinit tg3_nvram_init(struct tg3 *tp)
 235  {
 236 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE) {
 237 +               /* No NVRAM and EEPROM on the SSB Broadcom GigE core. */
 238 +               tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
 239 +               return;
 240 +       }
 241 +
 242         tw32_f(GRC_EEPROM_ADDR,
 243              (EEPROM_ADDR_FSM_RESET |
 244               (EEPROM_DEFAULT_CLOCK_PERIOD <<
 245 @@ -12154,6 +12221,9 @@ static int tg3_nvram_write_block(struct
 246  {
 247         int ret;
 248
 249 +       if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)
 250 +               return -ENODEV;
 251 +
 252         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
 253                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
 254                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
 255 @@ -13615,6 +13685,11 @@ static int __devinit tg3_get_invariants(
 256               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
 257                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
 258
 259 +       if (tp->tg3_flags3 & TG3_FLG3_FLUSH_POSTED_WRITES) {
 260 +               tp->write32_tx_mbox = tg3_write_flush_reg32;
 261 +               tp->write32_rx_mbox = tg3_write_flush_reg32;
 262 +       }
 263 +
 264         /* Get eeprom hw config before calling tg3_set_power_state().
 265          * In particular, the TG3_FLG2_IS_NIC flag must be
 266          * determined before calling tg3_set_power_state() so that
 267 @@ -14012,6 +14087,10 @@ static int __devinit tg3_get_device_addr
 268         }
 269
 270         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
 271 +               if (tp->tg3_flags3 & TG3_FLG3_IS_SSB_CORE)
 272 +                       ssb_gige_get_macaddr(tp->pdev, &dev->dev_addr[0]);
 273 +       }
 274 +       if (!is_valid_ether_addr(&dev->dev_addr[0])) {
 275  #ifdef CONFIG_SPARC
 276                 if (!tg3_get_default_macaddr_sparc(tp))
 277                         return 0;
 278 @@ -14512,6 +14591,7 @@ static char * __devinit tg3_phy_string(s
 279         case TG3_PHY_ID_BCM5704:        return "5704";
 280         case TG3_PHY_ID_BCM5705:        return "5705";
 281         case TG3_PHY_ID_BCM5750:        return "5750";
 282 +       case TG3_PHY_ID_BCM5750_2:      return "5750-2";
 283         case TG3_PHY_ID_BCM5752:        return "5752";
 284         case TG3_PHY_ID_BCM5714:        return "5714";
 285         case TG3_PHY_ID_BCM5780:        return "5780";
 286 @@ -14715,6 +14795,13 @@ static int __devinit tg3_init_one(struct
 287                 tp->msg_enable = tg3_debug;
 288         else
 289                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
 290 +       if (pdev_is_ssb_gige_core(pdev)) {
 291 +               tp->tg3_flags3 |= TG3_FLG3_IS_SSB_CORE;
 292 +               if (ssb_gige_must_flush_posted_writes(pdev))
 293 +                       tp->tg3_flags3 |= TG3_FLG3_FLUSH_POSTED_WRITES;
 294 +               if (ssb_gige_have_roboswitch(pdev))
 295 +                       tp->tg3_flags3 |= TG3_FLG3_ROBOSWITCH;
 296 +       }
 297
 298         /* The word/byte swap controls here control register access byte
 299          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
 300 --- a/drivers/net/tg3.h
 301 +++ b/drivers/net/tg3.h
 302 @@ -2065,6 +2065,9 @@
 303  #define  NIC_SRAM_RGMII_INBAND_DISABLE  0x00000004
 304  #define  NIC_SRAM_RGMII_EXT_IBND_RX_EN  0x00000008
 305  #define  NIC_SRAM_RGMII_EXT_IBND_TX_EN  0x00000010
 306 +#define TG3_FLG3_IS_SSB_CORE           0x00000800
 307 +#define TG3_FLG3_FLUSH_POSTED_WRITES   0x00001000
 308 +#define TG3_FLG3_ROBOSWITCH            0x00002000
 309
 310  #define NIC_SRAM_RX_MINI_BUFFER_DESC   0x00001000
 311
 312 @@ -2971,6 +2974,7 @@ struct tg3 {
 313  #define TG3_PHY_ID_BCM5704             0x60008190
 314  #define TG3_PHY_ID_BCM5705             0x600081a0
 315  #define TG3_PHY_ID_BCM5750             0x60008180
 316 +#define TG3_PHY_ID_BCM5750_2           0xbc050cd0
 317  #define TG3_PHY_ID_BCM5752             0x60008100
 318  #define TG3_PHY_ID_BCM5714             0x60008340
 319  #define TG3_PHY_ID_BCM5780             0x60008350
 320 @@ -3007,7 +3011,7 @@ struct tg3 {
 321          (X) == TG3_PHY_ID_BCM5906 || (X) == TG3_PHY_ID_BCM5761 || \
 322          (X) == TG3_PHY_ID_BCM5718C || (X) == TG3_PHY_ID_BCM5718S || \
 323          (X) == TG3_PHY_ID_BCM57765 || (X) == TG3_PHY_ID_BCM5719C || \
 324 -        (X) == TG3_PHY_ID_BCM8002)
 325 +        (X) == TG3_PHY_ID_BCM8002 || (X) == TG3_PHY_ID_BCM5750_2)
 326
 327         u32                             phy_flags;
 328  #define TG3_PHYFLG_IS_LOW_POWER                0x00000001