> This file is currently not compiled in.
I know, because I current environment have my own _defconfig still as
a quilt-patch. It's local, because it contains hardcoded the IP
address of my development box for TFTP, for example. I thought that I
put up the real environment once I'm able to decide about the final
environment.
> You can either remove it in case
> you don't need it, or move the env/ directory in your board file to
> defaultenv-ahs2/, add to the make rules:
>
> bbenv-y += defaultenv-ahs2
>
> And in some initcall do:
>
> defaultenv_append_directory(defaultenv_ahs2);
>
> This way the ahs2 specific files will be in the environment exactly when
> the binary is started on your board.
Good to know. But, as said, currently I cannot do this. After all,
this is an "initial support" patch.
>> +static inline void early_uart1_init(void)
>> +{
>> + // 2681: IOMUXC_UART1_UART_RX_DATA_SELECT_INPUT to ALT1 (CSI0_DATA10_ALT3 )
>> + // 2621: IOMUXC_ECSPI2_MISO_SELECT_INPUT to ALT2 (CSI0_DATA10_ALT2)
>> + // 2092: IOMUXC_SW_MUX_CTL_PAD_CSI0_DATA10 to ALT3 (UART1_TX_DATA)
>
> What are these numbers?
The page numbers in the i.MX6 reference manual :-)
> Please replace with /* C comments */
Sigh, we still aren't in the year 2014 ?!?!? Somehow this "no //"
reminds me that the other day a collegue of me asked me to set the
baudrate to 38400 :-)
And while at it: may I suggest that barebox switches to C99? Thould
would also liberate the placement of variable definitions ...
>> + aliases {
>> + ethernet0 = &fec;
>> + };
>
> Could you add this to the imx6qdl.dtsi file instead?
Sure, I actually don't even know if it is needed. I took it via cut-and-paste.
> Normally this should be in the upstream dtsi file, but as long as it
> isn't we can keep it in barebox.
I'll look if it is needed, and if yes, I'll put it in the dtsi file.
>> + phy: ethernet-phy@0 {
>> + speed = <10>;
>> + duplex = <1>;
>> + };
>
> speed 10? really?
Now, there are two reasons why I tried this:
* our hardware guys had an error on our layout (wrong resistors). I
should have removed that, my board is now fixed.
* currently, the most time consuming operation in in my
barebox-loads-linux-via-TFTP is the autonegotiation of the PHY. After
"ifup eth0" a "time ping 10.1.2.3" reports 4580ms. Transfers after
that are fast enought. My attempt was a try to use some fixes speed,
even a slow one.
But I now grepped for "of_" below drivers/net, I actually think that
neiher fec_imx.c nor phy/smsc.c cares for device tree settings.
Do you have any idea on how to speed up auto-negotiation?
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