From: Florian Fainelli <florian@openwrt.org>
Date: Thu, 8 Jan 2009 19:01:58 +0000 (-0800)
Subject: r6040: check PHY status when bringing interface up
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=84314bf92265bccea601ed75ec93944e1a36dd81;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

r6040: check PHY status when bringing interface up

This patch makes the driver properly initialize the PHY
status if not correctly set by the bootloader/BIOS.
It prevents some boards to bring up the link on boot.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 92b14c871351..7ac6fede6e6d 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -1121,6 +1121,10 @@ static int __devinit r6040_init_one(struct pci_dev *pdev,
 		err = -EIO;
 		goto err_out_free_res;
 	}
+	/* If PHY status change register is still set to zero it means the
+	 * bootloader didn't initialize it */
+	if (ioread16(ioaddr + PHY_CC) == 0)
+		iowrite16(0x9f07, ioaddr + PHY_CC);
 
 	/* Init system & device */
 	lp->base = ioaddr;