aboutsummaryrefslogtreecommitdiff
path: root/common/miiphyutil.c
diff options
context:
space:
mode:
authorwdenk <wdenk>2004-06-06 23:13:55 +0000
committerwdenk <wdenk>2004-06-06 23:13:55 +0000
commita56bd92289298bde16306bcc754277db45315d2f (patch)
tree191b3ffdc97a005ddc973f7de85ef3b1d3768fd8 /common/miiphyutil.c
parent5ca2679933142f7bf2996590b2e318c298664748 (diff)
downloadu-boot-linaro-stable-a56bd92289298bde16306bcc754277db45315d2f.tar.gz
* Patch by Dave Peverley, 30 Apr 2004:
Add support for OMAP730 Perseus2 Development board * Patch by Alan J. Luse, 29 Apr 2004: Fix flash chip-select (OR0) option register setting on FADS boards. * Patch by Alan J. Luse, 29 Apr 2004: Report MII network speed and duplex setting properly when auto-negotiate is not enabled. * Patch by Jarrett Redd, 29 Apr 2004: Fix hang on reset on Ocotea board due to flash in wrong mode.
Diffstat (limited to 'common/miiphyutil.c')
-rw-r--r--common/miiphyutil.c42
1 files changed, 37 insertions, 5 deletions
diff --git a/common/miiphyutil.c b/common/miiphyutil.c
index 721d109a1..2b0dcf4f2 100644
--- a/common/miiphyutil.c
+++ b/common/miiphyutil.c
@@ -147,15 +147,31 @@ int miiphy_speed (unsigned char addr)
}
#endif /* CONFIG_PHY_GIGE */
- if (miiphy_read (addr, PHY_ANLPAR, &reg)) {
- puts ("PHY speed1 read failed, assuming 10bT\n");
+ /* Check Basic Management Control Register first. */
+ if (miiphy_read (addr, PHY_BMCR, &reg)) {
+ puts ("PHY speed read failed, assuming 10bT\n");
return (_10BASET);
}
- if ((reg & PHY_ANLPAR_100) != 0) {
+ /* Check if auto-negotiation is on. */
+ if ((reg & PHY_BMCR_AUTON) != 0) {
+ /* Get auto-negotiation results. */
+ if (miiphy_read (addr, PHY_ANLPAR, &reg)) {
+ puts ("PHY AN speed read failed, assuming 10bT\n");
+ return (_10BASET);
+ }
+ if ((reg & PHY_ANLPAR_100) != 0) {
+ return (_100BASET);
+ } else {
+ return (_10BASET);
+ }
+ }
+ /* Get speed from basic control settings. */
+ else if (reg & PHY_BMCR_100MB) {
return (_100BASET);
} else {
return (_10BASET);
}
+
}
@@ -182,16 +198,32 @@ int miiphy_duplex (unsigned char addr)
}
#endif /* CONFIG_PHY_GIGE */
- if (miiphy_read (addr, PHY_ANLPAR, &reg)) {
+ /* Check Basic Management Control Register first. */
+ if (miiphy_read (addr, PHY_BMCR, &reg)) {
puts ("PHY duplex read failed, assuming half duplex\n");
return (HALF);
}
+ /* Check if auto-negotiation is on. */
+ if ((reg & PHY_BMCR_AUTON) != 0) {
+ /* Get auto-negotiation results. */
+ if (miiphy_read (addr, PHY_ANLPAR, &reg)) {
+ puts ("PHY AN duplex read failed, assuming half duplex\n");
+ return (HALF);
+ }
- if ((reg & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) != 0) {
+ if ((reg & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) != 0) {
+ return (FULL);
+ } else {
+ return (HALF);
+ }
+ }
+ /* Get speed from basic control settings. */
+ else if (reg & PHY_BMCR_DPLX) {
return (FULL);
} else {
return (HALF);
}
+
}
#ifdef CFG_FAULT_ECHO_LINK_DOWN