e1000: fix sw fw sync on igb i210/i211

I finally had a look at the datasheet and spotted an additional
register address difference between regular E1000 and i210/i211 chips.
This patch fixes this and now successfully works on programmed
i210/i211 as well as unprogrammed i211.
Signed-off-by: NMarcel Ziswiler <marcel@ziswiler.com>

drivers/net/e1000.c

@@ -1112,7 +1112,10 @@ e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask)
 		if (e1000_get_hw_eeprom_semaphore(hw))
 			return -E1000_ERR_SWFW_SYNC;
 
-		swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC);
+		if (hw->mac_type == e1000_igb)
+			swfw_sync = E1000_READ_REG(hw, I210_SW_FW_SYNC);
+		else
+			swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC);
 		if (!(swfw_sync & (fwmask | swmask)))
 			break;
 
@@ -4429,7 +4432,6 @@ e1000_phy_hw_reset(struct e1000_hw *hw)
 
 		if (hw->mac_type >= e1000_82571)
 			mdelay(10);
-
 	} else {
 		/* Read the Extended Device Control Register, assert the PHY_RESET_DIR
 		 * bit to put the PHY into reset. Then, take it out of reset.

drivers/net/e1000.h

@@ -2497,6 +2497,7 @@ struct e1000_hw {
 #define ICH_GFPREG_BASE_MASK       0x1FFF
 #define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF
 
+#define E1000_I210_SW_FW_SYNC 0x5B50 /* Software-Firmware Synchronization - RW */
 #define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */
 
 /* SPI EEPROM Status Register */