commit f89920c3e4be1528ceb5b645d8aaf19968275609
author Wolfgang Denk <wd@pollux.denx.de> Fri Aug 12 23:15:53 2005 +0200
committer Wolfgang Denk <wd@pollux.denx.de> Fri Aug 12 23:15:53 2005 +0200
tree 10382c924087f6cf212868c5c23269b477087bc3
parent e5445288318de74e1fb63920e7ed7bf48088c3c2

Preserve PHY_BMCR during a soft reset.
Patch by Carl Riechers, 24 Jun 2005

common/miiphyutil.c

diff --git a/common/miiphyutil.c b/common/miiphyutil.c
index 2b0dcf4..13b9c65 100644
--- a/common/miiphyutil.c
+++ b/common/miiphyutil.c
@@ -93,7 +93,13 @@
 	unsigned short reg;
 	int loop_cnt;
 
-	if (miiphy_write (addr, PHY_BMCR, 0x8000) != 0) {
+	if (miiphy_read (addr, PHY_BMCR, &reg) != 0) {
+#ifdef DEBUG
+		printf ("PHY status read failed\n");
+#endif
+		return (-1);
+	}
+	if (miiphy_write (addr, PHY_BMCR, reg | 0x8000) != 0) {
 #ifdef DEBUG
 		puts ("PHY reset failed\n");
 #endif