Re: [PATCH v2 3/4] arm: dts: Add USB phy nodes for AM33XX

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On 7/20/2013 12:12 AM, Sebastian Andrzej Siewior wrote:
On 07/19/2013 08:33 PM, Sergei Shtylyov wrote:
Hello.
Hello,

usb: usb@47400000 {
     compatible = "ti,am33xx-usb";
usb0_phy: phy@47401300 {
         compatible = "ti,am335x-usb-phy";
     }
     usb0: usb@47401000 {
         musb0: usb@47401400 {
             compatible = "mg,musbmhdrc";
         }
     }
     usb1_phy: phy@47402300 {
         compatible = "ti,am335x-usb-phy";
     }
     usb1: usb@47402000 {
         musb1: usb@47402400 {
             compatible = "mg,musbmhdrc";
         }
     }
}
And you want usb0_phy to be child of usb0? In the TRM they are all in
the same block.
    Ah, the fact that PHYs didn't have the "reg" property got me muddled,
I didn't pay attention to the address part of the node names... BTW,
where is the "reg" prop?
I skipped it for the general idea. I planned to repost is today but I
messed up dsps and need to get it working first…

I see PHYs share the address space with
"omap-control-usb@44e10620" device -- what's the point with this?
I decided to get rid of this. Both phys have 8 bytes (2 registers)
which are exclusive for them.
There is one register for the wakeup which is shared by both.
I changed this to limit it only to the 8bytes per phy. I care about
wakeup later - hopefully George will take care of this :)
But for wakeup how can we map it since its the same register. That is the main reason i took the
omap-control-usb route.


Sebastian
WBR, Sergei

Sebastian


--
-George

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