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SubjectRe: [PATCH 3/5] x86/of: Add building device tree blob(s) into image.
On Tue, Nov 16, 2010 at 02:41:38PM -0800, dirk.brandewie@gmail.com wrote:
> From: Dirk Brandewie <dirk.brandewie@gmail.com>
>
> This patch adds linking device tree blobs into vmlinux. DTB's are
> added by adding the blob object name to list of objects to be linked
> into the image.
> e.g:
> obj-$(CONFIG_TEST_DTB) += test.dtb.o
>
> The set of DTB linked into the image is controlled the Kconfig file
> in arch/x86/kernel/dts/Kconfig
>
> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
> ---
> arch/x86/Kconfig | 6 +++++-
> arch/x86/kernel/Makefile | 6 ++++++
> arch/x86/kernel/dts/Kconfig | 7 +++++++
> 3 files changed, 18 insertions(+), 1 deletions(-)
> create mode 100644 arch/x86/kernel/dts/Kconfig
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 5904f38..f2f516a 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -299,13 +299,17 @@ config X86_BIGSMP
> ---help---
> This option is needed for the systems that have more than 8 CPUs
>
> -config X86_OF
> +menuconfig X86_OF
> bool "Support for device tree"
> select OF
> select OF_FLATTREE
> ---help---
> Device tree support on X86.
>
> +if X86_OF
> +source arch/x86/kernel/dts/Kconfig
> +endif
> +
> if X86_32
> config X86_EXTENDED_PLATFORM
> bool "Support for extended (non-PC) x86 platforms"
> diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
> index 586df14..49e017d 100644
> --- a/arch/x86/kernel/Makefile
> +++ b/arch/x86/kernel/Makefile
> @@ -114,6 +114,12 @@ obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
> obj-$(CONFIG_X86_OF) += prom.o
>
> ###
> +# device tree blobs
> +obj-$(CONFIG_CE4100_DTB) += ce4100.dtb.o
> +obj-$(CONFIG_TEST_DTB) += test.dtb.o
> +
> +
> +###
> # 64 bit specific files
> ifeq ($(CONFIG_X86_64),y)
> obj-$(CONFIG_AUDIT) += audit_64.o
> diff --git a/arch/x86/kernel/dts/Kconfig b/arch/x86/kernel/dts/Kconfig
> new file mode 100644
> index 0000000..d3e5cd4
> --- /dev/null
> +++ b/arch/x86/kernel/dts/Kconfig
> @@ -0,0 +1,7 @@
> +config CE4100_DTB
> + bool "Intel CE4100"
> +
> +config TEST_DTB
> + bool "Test DTS"
> +
> +

As previously mentioned, this isn't going to scale. Need to look at
allowing the user to specify a list of .dtbs that will be linked in.

g.

> --
> 1.7.2.3
>
> _______________________________________________
> devicetree-discuss mailing list
> devicetree-discuss@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/devicetree-discuss


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