device tree node/property order change

[real time]

Hi AnilSir/All ,

I have one top level(board level) .dtsi file which overrides the low level(soc level) .dtsi file .

now my board dtsi includes the soc dtsi file . 

in soc dtsi file , uart sequence is uart a, uart b , uart c and uart d .

i want to change the sequence to uart b , uart a , uart c and uart d without modifying soc level dtsi file . becuase my driver assume first uart is console which is uart b . what should i do ?

because upto i know properties can be overriden , not the sequence .

can any one comment one this please....someone told me about plugin manager , but by google , i could not find any useful.!!!

Regards,

Mehul 

[Vineeth]

What if we reorder the nodes in the dtsi file ?

One easy method is to add an extra property for the console node and use this property to identify the same from UART driver! lets say, before registering the node as console, check if (of_property_read_bool(uart_dev, "console-node")) is TRUE or not !

just a thought.

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[real time]

I am not allowed to change the driver ....

[real time]

if i change the order in the top level dtsi , it is over written by low level (soc dtsi) . so i am not getting expected sequence.

[Vineeth]

Where do you have the console node info ? Is it part of the low level dtsi ?

von meinem Iphone gesendet

[real time]

no , in low level initialization , only entry of the UARTs and default initialization is there ; in high level , i am over writing it . in high level dtsi one of the property UART B is console-port . so we are telling to kernel this is the uart is for console . however in the order wise it is second. on the other end , in bootloader we are telling that ttyS0 as console port .

[Vineeth]

Cant you mention the console port from the boot parameters ? So that kernel will know which uart to consider as console port.

[real time]

boot code i can not chagne

[Vineeth]

whats the bootloader ?

[real time]

quick boot