Thank you for reply Tom, Let me ask you some questions. Can we set kernel's bootargs without re-compiling device tree on arm64 kernel by u-boot?
I mean, I want to set kernel's bootargs by u-boot without re-compiling device tree. Is it possible? 2014. 8. 13. 오후 7:39에 "Tom Rini" <tr...@ti.com>님이 작성: > On Wed, Aug 13, 2014 at 11:21:32AM +0900, Youngmin Nam wrote: > > > Hello. > > I'm trying to find a way how to pass bootargs to arm64 kernel. > > > > In arm32 kernel, we can pass bootargs with atag from u-boot to kernel. > So, > > we can overwrite kernel's bootargs with u-boot's bootargs. > > > > But from arm64 kernel, the dtb is the only argument that should be passed > > from bootloader which is mandatory. > > you can find this contents in kernel > > documentation.(Documentation/arm64/Booting.txt) > > > > So, is there any way how to set bootargs by u-boot? > > Yes, within the device tree, like we do today. There's a few issues we > have today, but I need to re-post the booti command support patches, > given what's coming in 3.17 in the kernel. > > -- > Tom >
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