From 2bf3359ea5555972bcd6684f1c3142e2b7200281 Mon Sep 17 00:00:00 2001 From: Troy Kisky Date: Tue, 7 Feb 2012 14:08:50 +0000 Subject: i.mx6q: mx6qsabrelite: Update the network configuration Define CONFIG_PHY_MICREL, 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 Acked-by: Dirk Behme --- board/freescale/mx6qsabrelite/mx6qsabrelite.c | 47 ++++++++------------------- 1 file changed, 14 insertions(+), 33 deletions(-) (limited to 'board/freescale') diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index 03a088a..f884bb5 100644 --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c @@ -29,9 +29,9 @@ #include #include #include +#include #include #include - DECLARE_GLOBAL_DATA_PTR; #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ @@ -214,51 +214,32 @@ void setup_spi(void) } #endif -#define MII_1000BASET_CTRL 0x9 -#define MII_EXTENDED_CTRL 0xb -#define MII_EXTENDED_DATAW 0xc - -int fecmxc_mii_postcall(int phy) +int board_phy_config(struct phy_device *phydev) { - /* 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); - + ksz9021_phy_extended_write(phydev, + MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0); + /* min tx data delay */ + ksz9021_phy_extended_write(phydev, + MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0); + /* max rx/tx clock delay, min rx/tx control */ + ksz9021_phy_extended_write(phydev, + MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0); + if (phydev->drv->config) + phydev->drv->config(phydev); + 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; - } #ifdef CONFIG_MXC_SPI setup_spi(); -- cgit v1.1