1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6a736dda3ee2..201be425643a 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -2190,7 +2190,14 @@ static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
         if (!(tmp & EEPROM_ADDR_COMPLETE))
                 return -EBUSY;
 
-        *val = tr32(GRC_EEPROM_DATA);
+        tmp = tr32(GRC_EEPROM_DATA);
+
+        /*
+         * The data will always be opposite the native endian
+         * format.  Perform a blind byteswap to compensate.
+         */
+        *val = swab32(tmp);
+
         return 0;
 }
 
@@ -10663,7 +10670,13 @@ static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
 
                 memcpy(&data, buf + i, 4);
 
-                tw32(GRC_EEPROM_DATA, be32_to_cpu(data));
+                /*
+                 * The SEEPROM interface expects the data to always be opposite
+                 * the native endian format.  We accomplish this by reversing
+                 * all the operations that would have been performed on the
+                 * data from a call to tg3_nvram_read_be32().
+                 */
+                tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
 
                 val = tr32(GRC_EEPROM_ADDR);
                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);