Hello All,
First of all sorry if my question is silly,but I am trying to understand android build process. So, When I checked fstab.freescale for 7ulp evk and sabresd_7d I found following difference in the file.
evk -7ulp
/devices/platform/40000000.ahb-bridge0/40330000.usb/ci_hdrc.0* auto auto defaults voldmanaged=usb:auto
sabresd-7d
/devices/soc0/soc/30800000.aips-bus/30b20000.usb/ci_hdrc.1* auto auto defaults voldmanaged=usb:auto
After reading some documentation I understand 40000000.ahb-bridge0/40330000.usb & 30800000.aips-bus/30b20000.usb are the usb otg addresses as given in device tree.
but what I dont understand is:
1. /devices/platform/ in 7ulp and /devices/soc0/soc/ in sabresd_7d
why there is no platform in 7d and extra soc0?
2. usb/ci_hdrc.0 & usb/ci_hdrc.1
why is this difference of 1 and 0 in the files?
can someone please explain me this difference. Your help would be much appreciated.
Regards,
Asma
解決済! 解決策の投稿を見る。
Hi Asma
1. difference between /devices/platform/ /devices/soc can be found in linux documentation
https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-soc
2. i.mx7d has 2x usb otg modules while i.mx7ulp one.
Best regards
igor
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Hi Asma
1. difference between /devices/platform/ /devices/soc can be found in linux documentation
https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-soc
2. i.mx7d has 2x usb otg modules while i.mx7ulp one.
Best regards
igor
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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