[U-Boot] [PATCH] net: Add option to disable fibre on M88E1111 PHY for PPC4xx

[Stefan Roese]

By defining CONFIG_M88E1111_DISABLE_FIBRE boards can configure the
M88E1111 PYH to disable fibre. This is needed for an upcoming PPC460GT
based board, which has fibre/copper auto-selection enabled by default.
This doesn't seem to work. So we disable fibre in the PHY register.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Ben Warren <biggerbadderben at gmail.com>
---
 drivers/net/4xx_enet.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/net/4xx_enet.c b/drivers/net/4xx_enet.c
index 2fac641..2958903 100644
--- a/drivers/net/4xx_enet.c
+++ b/drivers/net/4xx_enet.c
@@ -1095,6 +1095,11 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 		miiphy_write (dev->name, reg, 0x18, 0x4101);
 		miiphy_write (dev->name, reg, 0x09, 0x0e00);
 		miiphy_write (dev->name, reg, 0x04, 0x01e1);
+#if defined(CONFIG_M88E1111_DISABLE_FIBRE)
+		miiphy_read(dev->name, reg, 0x1b, &reg_short);
+		reg_short |= 0x8000;
+		miiphy_write(dev->name, reg, 0x1b, reg_short);
+#endif
 #endif
 #if defined(CONFIG_M88E1112_PHY)
 		if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
-- 
1.7.1