Enable the usage of PHY_MICREL_KSZ9021, and minimize the tx clock delay.
There is an issue with 1000 baseTx mode on early revs of the SabreLite boards. The center tap pin 9 of the mag RJ45 USB combo was connected to the 3.3 filtered supply. Letting this pin float solved the problem. Symptoms of the problem were packets with many extra zeroes tacked on the end, and random bit flips causing a high rate of CRC errors. 10/100 baseTx worked fine on all revs. To disable 1000 baseTx for these boards, simply define the environment variable disable_giga. ie.
setenv disable_giga 1
Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com --- board/freescale/mx6qsabrelite/mx6qsabrelite.c | 43 +----------------------- include/configs/mx6qsabrelite.h | 7 ++++ 2 files changed, 9 insertions(+), 41 deletions(-)
diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index e6c12a5..77fb79c 100644 --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c @@ -187,53 +187,14 @@ int board_mmc_init(bd_t *bis) } #endif
-#define MII_1000BASET_CTRL 0x9 -#define MII_EXTENDED_CTRL 0xb -#define MII_EXTENDED_DATAW 0xc - -int fecmxc_mii_postcall(int phy) -{ - /* prefer master mode */ - miiphy_write("FEC", phy, MII_1000BASET_CTRL, 0x0f00); - - /* min rx data delay */ - miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8105); - miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0x0000); - - /* max rx/tx clock delay, min rx/tx control delay */ - miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8104); - miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0xf0f0); - miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x104); - - return 0; -} - int board_eth_init(bd_t *bis) { - struct eth_device *dev; int ret; - setup_iomux_enet(); - ret = cpu_eth_init(bis); - if (ret) { + if (ret) printf("FEC MXC: %s:failed\n", __func__); - return ret; - } - - dev = eth_get_dev_by_name("FEC"); - if (!dev) { - printf("FEC MXC: Unable to get FEC device entry\n"); - return -EINVAL; - } - - ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); - if (ret) { - printf("FEC MXC: Unable to register FEC mii postcall\n"); - return ret; - } - - return 0; + return ret; }
int board_early_init_f(void) diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h index 86b25d9..cbae4c3 100644 --- a/include/configs/mx6qsabrelite.h +++ b/include/configs/mx6qsabrelite.h @@ -66,6 +66,13 @@ #define CONFIG_FEC_XCV_TYPE RGMII #define CONFIG_ETHPRIME "FEC" #define CONFIG_FEC_MXC_PHYADDR 6 +#define CONFIG_PHYLIB +#define CONFIG_PHY_MICREL_KSZ9021 +#define CONFIG_PHY_MICREL_KSZ9021_INIT_CMDS \ + 0x8105, 0x0000, /* min rx data delay */ \ + 0x8106, 0x0000, /* min tx data delay */ \ + 0x8104, 0xf0f0, /* max rx/tx clock delay, min rx/tx control */ +
/* allow to overwrite serial and ethaddr */ #define CONFIG_ENV_OVERWRITE