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| author | Fugang Duan <B38611@freescale.com> | 2014-02-26 18:51:15 +0800 |
|---|---|---|
| committer | Ye.Li <B37916@freescale.com> | 2014-03-06 11:54:59 +0800 |
| commit | e81e34a2a9a2bcd8c3d2e218a375ea8e00a6f280 (patch) | |
| tree | 3407c629f208273ce74b008326ca5f293bdd2db1 /board | |
| parent | 9327728496108b0e4a159256b829b17629a0da5e (diff) | |
| download | u-boot-imx-e81e34a2a9a2bcd8c3d2e218a375ea8e00a6f280.zip u-boot-imx-e81e34a2a9a2bcd8c3d2e218a375ea8e00a6f280.tar.gz u-boot-imx-e81e34a2a9a2bcd8c3d2e218a375ea8e00a6f280.tar.bz2 | |
ENGR00300980 ARM:imx6sx-sdb:fec: fix phy autonegation cost long time issue
On imx6sx-sdb platform, when ethernet connect to TP-LINK TL-SF1008+
switch, phy do autonegation cost long time (about 5 seconds), and then
fix to 10Mbps full duplex mode, which causes two problems:
- Need user to wait long time before tftp load kernel.
- 10Mbps mode lead load kernel time too long.
The root cause is phy init is not right, the right flow:
Enable phy power -> reset phy -> supply clock to phy.
After the fix, imx6sx-sdb can work fine with the switch.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx6sxsabresd/mx6sxsabresd.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c index a7e6f4f..7d12d9b 100644 --- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c +++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c @@ -193,17 +193,6 @@ static void setup_iomux_fec(int fec_id) imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); else imx_iomux_v3_setup_multiple_pads(fec2_pads, ARRAY_SIZE(fec2_pads)); - - imx_iomux_v3_setup_multiple_pads(phy_control_pads, - ARRAY_SIZE(phy_control_pads)); - - /* Enable the ENET power, active low */ - gpio_direction_output(IMX_GPIO_NR(2, 6) , 0); - - /* Reset AR8031 PHY */ - gpio_direction_output(IMX_GPIO_NR(2, 7) , 0); - udelay(500); - gpio_set_value(IMX_GPIO_NR(2, 7), 1); } #endif @@ -437,6 +426,17 @@ static int setup_fec(int fec_id) } #endif + imx_iomux_v3_setup_multiple_pads(phy_control_pads, + ARRAY_SIZE(phy_control_pads)); + + /* Enable the ENET power, active low */ + gpio_direction_output(IMX_GPIO_NR(2, 6) , 0); + + /* Reset AR8031 PHY */ + gpio_direction_output(IMX_GPIO_NR(2, 7) , 0); + udelay(500); + gpio_set_value(IMX_GPIO_NR(2, 7), 1); + #ifdef CONFIG_FEC_CLOCK_25M_REF enable_fec_25m_clock(); #endif |