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path: root/recipes-bsp/u-boot/u-boot-2012.10/u-boot-2010.06-macb-autoneg-timeout.patch
blob: 5294b1aed96e4876189670f80bc1eadbf22dc63f (plain)
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Index: u-boot-2010.06/drivers/net/macb.c
===================================================================
--- u-boot-2010.06.orig/drivers/net/macb.c	2013-01-04 16:57:21.460051123 -0600
+++ u-boot-2010.06/drivers/net/macb.c	2013-01-04 17:03:28.880052058 -0600
@@ -57,7 +57,7 @@
 #define CONFIG_SYS_MACB_RX_RING_SIZE		(CONFIG_SYS_MACB_RX_BUFFER_SIZE / 128)
 #define CONFIG_SYS_MACB_TX_RING_SIZE		16
 #define CONFIG_SYS_MACB_TX_TIMEOUT		1000
-#define CONFIG_SYS_MACB_AUTONEG_TIMEOUT	5000000
+#define CONFIG_SYS_MACB_AUTONEG_TIMEOUT	3000000
 
 struct macb_dma_desc {
 	u32	addr;
@@ -322,11 +322,12 @@
 	return 0;
 }
 
-static void macb_phy_reset(struct macb_device *macb)
+static u16 macb_phy_reset(struct macb_device *macb)
 {
 	struct eth_device *netdev = &macb->netdev;
 	int i;
-	u16 status, adv;
+	u16 status = 0;
+	u16 adv;
 
 	adv = ADVERTISE_CSMA | ADVERTISE_ALL;
 	macb_mdio_write(macb, MII_ADVERTISE, adv);
@@ -346,6 +347,8 @@
 	else
 		printf("%s: Autonegotiation timed out (status=0x%04x)\n",
 		       netdev->name, status);
+
+	return status;
 }
 
 #ifdef CONFIG_MACB_SEARCH_PHY
@@ -397,14 +400,7 @@
 	status = macb_mdio_read(macb, MII_BMSR);
 	if (!(status & BMSR_LSTATUS)) {
 		/* Try to re-negotiate if we don't have link already. */
-		macb_phy_reset(macb);
-
-		for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
-			status = macb_mdio_read(macb, MII_BMSR);
-			if (status & BMSR_LSTATUS)
-				break;
-			udelay(100);
-		}
+		status = macb_phy_reset(macb);
 	}
 
 	if (!(status & BMSR_LSTATUS)) {