diff mbox series

[v1,net] lan743x: Remove MAC Reset from initialization

Message ID 1545256515-16945-1-git-send-email-Bryan.Whitehead@microchip.com
State Accepted, archived
Delegated to: David Miller
Headers show
Series [v1,net] lan743x: Remove MAC Reset from initialization | expand

Commit Message

Bryan Whitehead Dec. 19, 2018, 9:55 p.m. UTC
The MAC Reset was noticed to erase important EEPROM settings.
It is also unnecessary since a chip wide reset was done earlier
in initialization, and that reset preserves EEPROM settings.

There for this patch removes the unnecessary MAC specific reset.

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 6 ------
 1 file changed, 6 deletions(-)

Comments

David Miller Dec. 19, 2018, 11:49 p.m. UTC | #1
From: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Date: Wed, 19 Dec 2018 16:55:15 -0500

> The MAC Reset was noticed to erase important EEPROM settings.
> It is also unnecessary since a chip wide reset was done earlier
> in initialization, and that reset preserves EEPROM settings.
> 
> There for this patch removes the unnecessary MAC specific reset.
> 
> Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>

Applied.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 1ba8ea0..20c9377 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -802,14 +802,8 @@  static int lan743x_mac_init(struct lan743x_adapter *adapter)
 	u32 mac_addr_hi = 0;
 	u32 mac_addr_lo = 0;
 	u32 data;
-	int ret;
 
 	netdev = adapter->netdev;
-	lan743x_csr_write(adapter, MAC_CR, MAC_CR_RST_);
-	ret = lan743x_csr_wait_for_bit(adapter, MAC_CR, MAC_CR_RST_,
-				       0, 1000, 20000, 100);
-	if (ret)
-		return ret;
 
 	/* setup auto duplex, and speed detection */
 	data = lan743x_csr_read(adapter, MAC_CR);