From: Jeff Garzik <jeff@garzik.org>
Date: Sat, 29 Sep 2007 05:10:14 +0000 (-0400)
Subject: [netdrvr] sundance: fix phy scanning on IP100A
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ac1d49f8431bef861c7dd63e78be25e4c262eb52;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[netdrvr] sundance: fix phy scanning on IP100A

Based on a based from Jesse Huang <jesse@icplus.com.tw>.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index a37637ec9b77..ff98f5d597f1 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -466,7 +466,7 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
 #else
 	int bar = 1;
 #endif
-	int phy, phy_idx = 0;
+	int phy, phy_end, phy_idx = 0;
 	DECLARE_MAC_BUF(mac);
 
 /* when built into the kernel, we only print version if device is found */
@@ -552,11 +552,19 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
 
 	np->phys[0] = 1;		/* Default setting */
 	np->mii_preamble_required++;
+
 	/*
 	 * It seems some phys doesn't deal well with address 0 being accessed
-	 * first, so leave address zero to the end of the loop (32 & 31).
+	 * first
 	 */
-	for (phy = 1; phy <= 32 && phy_idx < MII_CNT; phy++) {
+	if (sundance_pci_tbl[np->chip_id].device == 0x0200) {
+		phy = 0;
+		phy_end = 31;
+	} else {
+		phy = 1;
+		phy_end = 32;	/* wraps to zero, due to 'phy & 0x1f' */
+	}
+	for (; phy <= phy_end && phy_idx < MII_CNT; phy++) {
 		int phyx = phy & 0x1f;
 		int mii_status = mdio_read(dev, phyx, MII_BMSR);
 		if (mii_status != 0xffff  &&  mii_status != 0x0000) {