[U-Boot] [PATCH] usb: ehci: Fix test mode for connected ports

[Julius Werner]

Hello Marek,

8 seemed like a reasonable value. It is not the only possible one. As
I said, the spec requires a minimum of 4.125 (125us to make sure the
current microframe finishes, and 16 * 125us to wait for the 16 full
microframes listed on page 20). 8 fulfills that constraint and leaves
a little more tolerance, but you could also use 5, 16 or 100. I really
don't care, so please just tell me what number you want to have if you
don't like 8, because it just doesn't matter. It is no more or less
magic than the 100ms used in most other handshake() calls (without any
#define or explanation).