From 74eb0222594fd23aafdf168e60e872814eea8b62 Mon Sep 17 00:00:00 2001 From: Mike Nuss Date: Mon, 3 Mar 2008 15:27:05 -0500 Subject: [PATCH] PPC4xx (Sequoia): Fix Ethernet "remote fault" problems Every now and then a Sequoia board (or equivalent hardware) had problems connecting to a Gigabit capable network interface. There were differences in the PHY setup between Linux and U-Boot. This patch fixes the problem. Apparently "remote fault" is being set, which signals to some devices (on the other end of the cable) that a fault has occurred, while other devices ignore it. I believe the RF bit was causing the issue, but I removed T4 also, to match up with Linux. Signed-off-by: Mike Nuss --- cpu/ppc4xx/miiphy.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c index 4216f0bd41..3978773f9f 100644 --- a/cpu/ppc4xx/miiphy.c +++ b/cpu/ppc4xx/miiphy.c @@ -143,9 +143,8 @@ int phy_setup_aneg (char *devname, unsigned char addr) u16 adv; miiphy_read (devname, addr, PHY_ANAR, &adv); - adv |= (PHY_ANLPAR_ACK | PHY_ANLPAR_RF | PHY_ANLPAR_T4 | - PHY_ANLPAR_TXFD | PHY_ANLPAR_TX | PHY_ANLPAR_10FD | - PHY_ANLPAR_10); + adv |= (PHY_ANLPAR_ACK | PHY_ANLPAR_TXFD | PHY_ANLPAR_TX | + PHY_ANLPAR_10FD | PHY_ANLPAR_10); miiphy_write (devname, addr, PHY_ANAR, adv); miiphy_read (devname, addr, PHY_1000BTCR, &adv);