[U-Boot-Users] MII / RMII

[Guennadi Liakhovetski]

Hi,

1. Does it make sense at all to define CONFIG_RMII without defining 
CONFIG_MII? The question is meant not really theoretical as in what 
meaning RMII has, rather how the macro CONFIG_RMII is supposed to be used? 
For example, tests like

#if defined(CONFIG_MII) && defined(CONFIG_RMII)

isn't checking for CONFIG_MII redundant?

2. cpu/at32ap/at32ap7000/gpio.c also tests CONFIG_RMII. at32ap is an AVR32 
CPU and this macro is only defined in a few MPC8XX configurations, so, 
this test doesn't seem to make much sense in the current tree.

3. drivers/qe/uec_phy.c tests CONFIG_RMII_MODE, which doesn't occur 
anywhere else in the tree. The driver is enabled in some MPC85xx and 
MPC83xx configs.

4. drivers/macb.c tests for "RMII or MII mode" by jest checking

#ifdef CONFIG_RMII
...
#else
...
#endif

i.e., not for

#elif defined CONFIG_MII

This driver is only enabled in include/configs/atstk1002.h, which is also 
an AVR32 config, and it neither defines MII nor RMII.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.

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