1 files changed, 50 insertions, 1 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6972fe5ccbf6..2b70b0f6f60b 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -11951,6 +11951,51 @@ static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
         return 1;
 }
 
+static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
+{
+        u32 offset, major, minor, build;
+
+        tp->fw_ver[0] = 's';
+        tp->fw_ver[1] = 'b';
+        tp->fw_ver[2] = '\0';
+
+        if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
+                return;
+
+        switch (val & TG3_EEPROM_SB_REVISION_MASK) {
+        case TG3_EEPROM_SB_REVISION_0:
+                offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
+                break;
+        case TG3_EEPROM_SB_REVISION_2:
+                offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
+                break;
+        case TG3_EEPROM_SB_REVISION_3:
+                offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
+                break;
+        default:
+                return;
+        }
+
+        if (tg3_nvram_read_swab(tp, offset, &val))
+                return;
+
+        build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
+                TG3_EEPROM_SB_EDH_BLD_SHFT;
+        major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
+                TG3_EEPROM_SB_EDH_MAJ_SHFT;
+        minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
+
+        if (minor > 99 || build > 26)
+                return;
+
+        snprintf(&tp->fw_ver[2], 30, " v%d.%02d", major, minor);
+
+        if (build > 0) {
+                tp->fw_ver[8] = 'a' + build - 1;
+                tp->fw_ver[9] = '\0';
+        }
+}
+
 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
 {
         u32 val, offset, start;
@@ -11960,8 +12005,12 @@ static void __devinit tg3_read_fw_ver(struct tg3 *tp)
         if (tg3_nvram_read_swab(tp, 0, &val))
                 return;
 
-        if (val != TG3_EEPROM_MAGIC)
+        if (val != TG3_EEPROM_MAGIC) {
+                if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
+                        tg3_read_sb_ver(tp, val);
+
                 return;
+        }
 
         if (tg3_nvram_read_swab(tp, 0xc, &offset) ||
             tg3_nvram_read_swab(tp, 0x4, &start))