From 17da7120249bfdef877f46be5bbcb3cc01212eb9 Mon Sep 17 00:00:00 2001
From: Marcel Ziswiler <marcel@ziswiler.com>
Date: Tue, 21 Oct 2014 14:26:36 +0200
Subject: [PATCH] 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: Marcel Ziswiler <marcel@ziswiler.com>
---
 drivers/net/e1000.c | 6 ++++--
 drivers/net/e1000.h | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c
index b092867272..798c8aa02c 100644
--- a/drivers/net/e1000.c
+++ b/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.
diff --git a/drivers/net/e1000.h b/drivers/net/e1000.h
index b025ecc4fc..6d110eb5d5 100644
--- a/drivers/net/e1000.h
+++ b/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 */
-- 
2.39.5