tg3: Handle NVRAM absent cases
Some 57780 ASIC revision parts do not have NVRAM. Code the driver so that it is tolerant of this configuration. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -8544,6 +8544,9 @@ static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
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u32 i, offset, len, b_offset, b_count;
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__be32 val;
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if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
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return -EINVAL;
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if (tp->link_config.phy_is_low_power)
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return -EAGAIN;
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@ -8609,7 +8612,8 @@ static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
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if (tp->link_config.phy_is_low_power)
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return -EAGAIN;
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if (eeprom->magic != TG3_EEPROM_MAGIC)
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if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
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eeprom->magic != TG3_EEPROM_MAGIC)
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return -EINVAL;
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offset = eeprom->offset;
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@ -9206,6 +9210,9 @@ static int tg3_test_nvram(struct tg3 *tp)
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__be32 *buf;
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int i, j, k, err = 0, size;
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if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
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return 0;
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if (tg3_nvram_read(tp, 0, &magic) != 0)
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return -EIO;
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@ -10188,7 +10195,8 @@ static void __devinit tg3_get_nvram_size(struct tg3 *tp)
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{
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u32 val;
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if (tg3_nvram_read(tp, 0, &val) != 0)
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if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
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tg3_nvram_read(tp, 0, &val) != 0)
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return;
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/* Selfboot format */
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@ -10570,6 +10578,7 @@ static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
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}
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break;
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default:
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tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
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return;
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}
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@ -11370,7 +11379,8 @@ static void __devinit tg3_read_partno(struct tg3 *tp)
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unsigned int i;
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u32 magic;
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if (tg3_nvram_read(tp, 0x0, &magic))
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if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
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tg3_nvram_read(tp, 0x0, &magic))
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goto out_not_found;
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if (magic == TG3_EEPROM_MAGIC) {
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@ -11462,6 +11472,15 @@ static void __devinit tg3_read_partno(struct tg3 *tp)
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out_not_found:
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if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
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strcpy(tp->board_part_number, "BCM95906");
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else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
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tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
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strcpy(tp->board_part_number, "BCM57780");
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else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
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tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
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strcpy(tp->board_part_number, "BCM57760");
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else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
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tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
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strcpy(tp->board_part_number, "BCM57790");
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else
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strcpy(tp->board_part_number, "none");
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}
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@ -11672,6 +11691,14 @@ static void __devinit tg3_read_fw_ver(struct tg3 *tp)
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{
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u32 val;
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if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
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tp->fw_ver[0] = 's';
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tp->fw_ver[1] = 'b';
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tp->fw_ver[2] = '\0';
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return;
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}
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if (tg3_nvram_read(tp, 0, &val))
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return;
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@ -12459,7 +12486,8 @@ static int __devinit tg3_get_device_address(struct tg3 *tp)
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}
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if (!addr_ok) {
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/* Next, try NVRAM. */
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if (!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
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if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
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!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
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!tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
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memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
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memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
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@ -2636,6 +2636,7 @@ struct tg3 {
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#define TG3_FLG3_CLKREQ_BUG 0x00000800
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#define TG3_FLG3_PHY_ENABLE_APD 0x00001000
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#define TG3_FLG3_5755_PLUS 0x00002000
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#define TG3_FLG3_NO_NVRAM 0x00004000
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struct timer_list timer;
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u16 timer_counter;
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