2 files changed, 46 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index c69c8df088d0..b4c5bab2bb40 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8938,6 +8938,47 @@ static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
         }
 }
 
+static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
+{
+        u32 nvcfg1;
+
+        nvcfg1 = tr32(NVRAM_CFG1);
+
+        /* NVRAM protection for TPM */
+        if (nvcfg1 & (1 << 27))
+                tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
+
+        switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
+                case FLASH_5755VENDOR_ATMEL_EEPROM_64KHZ:
+                case FLASH_5755VENDOR_ATMEL_EEPROM_376KHZ:
+                        tp->nvram_jedecnum = JEDEC_ATMEL;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
+
+                        nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
+                        tw32(NVRAM_CFG1, nvcfg1);
+                        break;
+                case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
+                case FLASH_5755VENDOR_ATMEL_FLASH_1:
+                case FLASH_5755VENDOR_ATMEL_FLASH_2:
+                case FLASH_5755VENDOR_ATMEL_FLASH_3:
+                case FLASH_5755VENDOR_ATMEL_FLASH_4:
+                        tp->nvram_jedecnum = JEDEC_ATMEL;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        tp->tg3_flags2 |= TG3_FLG2_FLASH;
+                        tp->nvram_pagesize = 264;
+                        break;
+                case FLASH_5752VENDOR_ST_M45PE10:
+                case FLASH_5752VENDOR_ST_M45PE20:
+                case FLASH_5752VENDOR_ST_M45PE40:
+                        tp->nvram_jedecnum = JEDEC_ST;
+                        tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
+                        tp->tg3_flags2 |= TG3_FLG2_FLASH;
+                        tp->nvram_pagesize = 256;
+                        break;
+        }
+}
+
 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
 {
         u32 nvcfg1;
@@ -9011,6 +9052,8 @@ static void __devinit tg3_nvram_init(struct tg3 *tp)
 
                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
                         tg3_get_5752_nvram_info(tp);
+                else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
+                        tg3_get_5755_nvram_info(tp);
                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787)
                         tg3_get_5787_nvram_info(tp);
                 else
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 672f375ef711..c43cc3264202 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1444,6 +1444,9 @@
 #define  FLASH_5755VENDOR_ATMEL_FLASH_1  0x03400001
 #define  FLASH_5755VENDOR_ATMEL_FLASH_2  0x03400002
 #define  FLASH_5755VENDOR_ATMEL_FLASH_3  0x03400000
+#define  FLASH_5755VENDOR_ATMEL_FLASH_4  0x00000003
+#define  FLASH_5755VENDOR_ATMEL_EEPROM_64KHZ     0x03c00003
+#define  FLASH_5755VENDOR_ATMEL_EEPROM_376KHZ    0x03c00002
 #define  FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ     0x03000003
 #define  FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ    0x03000002
 #define  FLASH_5787VENDOR_MICRO_EEPROM_64KHZ     0x03000000