Re: Question about adding new device trees

Re: Question about adding new device trees

[Robin Findley]

kongling,

You must also include your .dtb file in the Makefile in the dts source folder,
in the CONFIG_ARCH_MXC section.

-Robin


------ Original Message ------
Received: 04:04 AM EDT, 08/27/2014
From: kongling <k870818319@outlook.com>
Subject: [meta-freescale] Question about adding new device trees

> Hi,
>     I want to build dtb with my dts file.
>     In document "Software Development for i.MX Application Processors",
section "Yocto Project Build: Adding new device trees" discribes these steps:
> 
> 1. Create device tree in kernel source arch/arm/boot/dts
> 2. Update machine configuration files with new name
> • Note that device tree source is extension dts
> • Binary device tree is extension dtb
> − KERNEL_DEVICETREE = “<new device tree.dtb>“
> 3. Build kernel
> • bitbake -c compile -f linux-imx
> • bitbake -c deploy -f linux-imx
> • New device tree should be in tmp/deply/images/<machine>
> 4. Update uboot
> • Change the fdt_file parameter to the new device tree.dtb 
> 
>     I copy my dts file to
"~/fsl-arm-yocto-bsp/build/tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.10.17-r0/image/usr/src/kernel/arch/arm/boot/dts",add
 "KERNEL_DEVICETREE = "my.dtb"", then run "bitbake linux-imx" and get a error
"could not find my.dts".
> 
> Question :  where shoud I copy my dts file to?
> 
> Best regard,
> 
> kongling

Re: Question about adding new device trees

[kongling]

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Hi,
   Thanks for your reply!

    It worked!
    Thanks a lot!

BR,

kongling

> Date: Wed, 27 Aug 2014 06:52:53 -0400
> From: rfindley@usa.net
> To: k870818319@outlook.com; meta-freescale@yoctoproject.org
> Subject: Re: [meta-freescale] Question about adding new device trees
> 
> kongling,
> 
> You must also include your .dtb file in the Makefile in the dts source folder,
> in the CONFIG_ARCH_MXC section.
> 
> -Robin
> 
> 
> ------ Original Message ------
> Received: 04:04 AM EDT, 08/27/2014
> From: kongling <k870818319@outlook.com>
> Subject: [meta-freescale] Question about adding new device trees
> 
> > Hi,
> >     I want to build dtb with my dts file.
> >     In document "Software Development for i.MX Application Processors",
> section "Yocto Project Build: Adding new device trees" discribes these steps:
> > 
> > 1. Create device tree in kernel source arch/arm/boot/dts
> > 2. Update machine configuration files with new name
> > • Note that device tree source is extension dts
> > • Binary device tree is extension dtb
> > − KERNEL_DEVICETREE = “<new device tree.dtb>“
> > 3. Build kernel
> > • bitbake -c compile -f linux-imx
> > • bitbake -c deploy -f linux-imx
> > • New device tree should be in tmp/deply/images/<machine>
> > 4. Update uboot
> > • Change the fdt_file parameter to the new device tree.dtb 
> > 
> >     I copy my dts file to
> "~/fsl-arm-yocto-bsp/build/tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.10.17-r0/image/usr/src/kernel/arch/arm/boot/dts",add
>  "KERNEL_DEVICETREE = "my.dtb"", then run "bitbake linux-imx" and get a error
> "could not find my.dts".
> > 
> > Question :  where shoud I copy my dts file to?
> > 
> > Best regard,
> > 
> > kongling
> 
 		 	   		  

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Question about adding new device trees

[kongling]

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Hi,
    I want to build dtb with my dts file.
    In document "Software Development for i.MX Application Processors", section "Yocto Project Build: Adding new device trees" discribes these steps:

1. Create device tree in kernel source arch/arm/boot/dts
2. Update machine configuration files with new name
• Note that device tree source is extension dts
• Binary device tree is extension dtb
− KERNEL_DEVICETREE = “<new device tree.dtb>“
3. Build kernel
• bitbake -c compile -f linux-imx
• bitbake -c deploy -f linux-imx
• New device tree should be in tmp/deply/images/<machine>
4. Update uboot
• Change the fdt_file parameter to the new device tree.dtb 

    I copy my dts file to "~/fsl-arm-yocto-bsp/build/tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.10.17-r0/image/usr/src/kernel/arch/arm/boot/dts",add  "KERNEL_DEVICETREE = "my.dtb"", then run "bitbake linux-imx" and get a error "could not find my.dts".

Question :  where shoud I copy my dts file to?

Best regard,

kongling
 		 	   		  

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