Got below customer question:
We have on the card the DP83867IR set to RGMII mode with boot strap pin RX_DV/RX_CTRL pulled up by 2.49K to 1.8V, measured a voltage of 1.468V at reset so the device is set to mode 4
On the datasheet only modes 3 and 4 are permitted
The problem is that this mode sets the device to Manual Master/Slave Configuration – setting bit 12 on register 0x0009 to 1 - we read a value of 0x1300 from the register
Changing the boot strap to mode 0 – changing the pull up to pull down and getting 0.026V at reset the device mode is set to Disable Manual Master/Slave - we read a value of 0x0300 from the register
In the datasheet “Strap modes 1 and 2 are not applicable”
But the device will not work correctly in 1000Base-T if I set it to mode 4
In the datasheet the default value for this bit (reg 0x0009 bit 12) is 0 and setting the bit back to 0 solves the problem – but this is not in the standard Linux driver
Is this a problem with the datasheet? or there is another problem?
