Even if they are not physical connected they consume power - really.
I noticed the 5 PYH's in this SoC:
mmio 0x101100c0 0x08002000
mmio 0x101100c0 0x08002001
mmio 0x101100c0 0x08002002
mmio 0x101100c0 0x08002003
mmio 0x101100c0 0x08002004
[0x08002000] seems to be for eth0 acording to a post on that forum you noted:
rocksoft on 8devices.com wrote:
I only use a single Ethernet port so I periodiocally turn on the one I want (eth0) in my program
mmio 0x101100c0 0x00002000
But what about its WiFi? I guess this is placed in another register? or is that connected to one of the PYH's?
The power usage of this SoC (Carambola) is:
david on 8devices.com wrote:
Wi-Fi on, all ethernet on: 285mA
Wi-Fi on, all ethernet off: 194mA
Wi-Fi off, all ethernet on: 203mA
Wi-Fi off, all ethernet off: 112mA
Wi-Fi off, one ethernet on: 128mA
that 285mA is exactly my current power usage. so these devices are kinda similar.
Is it save to shutdown all the PHY's except for [0x08002000] which will keep the eth0 and WiFi functional?
"The greatest good you can do for another, is not to share your own riches, but to reveal to him, his own."
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