[U-Boot] [PATCH 1/2] net: fec_mxc: configure MDIO hold time

Stefano Babic sbabic at denx.de
Sun Jan 3 15:27:16 CET 2016


On 08/12/2015 17:08, Eric Nelson wrote:
> Hi Mans,
> 
> On 12/08/2015 08:38 AM, Mans Rullgard wrote:
>> If the host clock frequency is higher than 100 MHz, the MDIO hold
>> time needs to be increased from its current setting of one cycle in
>> order to meet the specified minium of 10 ns.  Writing an appropriate
>> value to the HOLDTIME field of the MII_SPEED register achieves this.
>>
>> Comment copied from Linux kernel.
>>
>> Signed-off-by: Mans Rullgard <mans at mansr.com>
>> ---
>>  drivers/net/fec_mxc.c | 18 +++++++++++++++---
>>  1 file changed, 15 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
>> index 79f6737..1250d2a 100644
>> --- a/drivers/net/fec_mxc.c
>> +++ b/drivers/net/fec_mxc.c
>> @@ -131,13 +131,25 @@ static void fec_mii_setspeed(struct ethernet_regs *eth)
>>  	/*
>>  	 * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
>>  	 * and do not drop the Preamble.
>> +	 *
> 
> s/filed/field/

Fixed by applying.

Applied to u-boot-imx, thanks!

Best regards,
Stefano Babic



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