Odroid XU3 support additions

Quoted 29 lines · Joonyoung Shim

Hi,

Quoted 20 lines · Hyungwon Hwang

Dear Sjoerd,

Thanks for this work. I think it is better to squash patch #1, #3, #4 into my patchs, because these patches remove the code which needlessly being added by my patches. I will include patch #2 also from next version.

Quoted 10 lines · On Mon, 01 Dec 2014 13:34:16 +0100 Sjoerd Simons…

Hey Hyungwon,

The following are some of the patches i had locally on top of your v9 Odroid. Feel free to merge them into your patchset (or squash them into your existing patches) if they look good to you.

Sjoerd Simons (4):
Odroid-XU3: Drop redundant fields
Odroid-XU3: Add entry for DTS EHCI GPIO
ODROID-XU3: Make odroid-xu3 an smdk5420 variant

I need to support odroid xu3 specific gpio setting e.g. to reset emmc for reset command support. Also there are specific gpio setting codes for only smdk5420 board on board/samsung/smdk5420/smdk5420.c and they are not related with odroid xu3 board.

Quoted 1 line

So i think that need to split them.

For the gpio specific to the smdk5420 are you referring to the usb vbus gpio ? (For which i've dropped the code in a later, merged commit as it's handled by common code).

Quoted 8 lines

First, split board file. It's easiest way to make separate board directory.

Second, we can make just board file for odroid xu3 in same directory and we should distinguish them from Makefile but i don't know this is general way.

Quoted 2 lines

Third, using same board file like now but we will need any way to distinguish boards on runtime.

To distinguish boards at runtime you should use the information from the DT file of the board rather then hardcoding it in a board file.