[U-Boot] [PATCH] armv8: ls2080aqds: fix SGMII repeater settings

[shh.xie at gmail.com]

From: Shaohui Xie <Shaohui.Xie at nxp.com>

The current value to check whether the PHY was configured has dependency
on MC, it expects MC to start PCS AN, this is not true during boot up,
so it should be changed to remove the dependency.

The PHY's register space should be restore to default after accessing
extended space.

Signed-off-by: Shaohui Xie <Shaohui.Xie at nxp.com>
---
 board/freescale/ls2080aqds/eth.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/board/freescale/ls2080aqds/eth.c b/board/freescale/ls2080aqds/eth.c
index 95ff68b..cf6791e 100644
--- a/board/freescale/ls2080aqds/eth.c
+++ b/board/freescale/ls2080aqds/eth.c
@@ -144,8 +144,10 @@ static void sgmii_configure_repeater(int serdes_port)
 
 		mdelay(10);
 
-		if ((value & 0xfff) == 0x40f) {
+		if ((value & 0xfff) == 0x401) {
 			printf("DPMAC %d:PHY is ..... Configured\n", dpmac_id);
+			miiphy_write(dev[mii_bus], riser_phy_addr[dpmac],
+				     0x1f, 0);
 			continue;
 		}
 
@@ -181,28 +183,29 @@ static void sgmii_configure_repeater(int serdes_port)
 				if (ret > 0)
 					goto error;
 
-				mdelay(1);
+				mdelay(100);
 				ret = miiphy_read(dev[mii_bus],
 						  riser_phy_addr[dpmac],
 						  0x11, &value);
 				if (ret > 0)
 					goto error;
-				mdelay(10);
 
-				if ((value & 0xfff) == 0x40f) {
+				if ((value & 0xfff) == 0x401) {
 					printf("DPMAC %d :PHY is configured ",
 					       dpmac_id);
 					printf("after setting repeater 0x%x\n",
 					       value);
 					i = 5;
 					j = 5;
-				} else
+				} else {
 					printf("DPMAC %d :PHY is failed to ",
 					       dpmac_id);
 					printf("configure the repeater 0x%x\n",
 					       value);
 				}
+			}
 		}
+		miiphy_write(dev[mii_bus], riser_phy_addr[dpmac], 0x1f, 0);
 	}
 error:
 	if (ret)
-- 
2.1.0.27.g96db324