[PATCH] ipq40xx: point to externally compiled dtbs in recipes

Robert Marko robimarko at gmail.com
Thu Aug 25 04:32:08 PDT 2022


On Wed, 24 Aug 2022 at 19:30, Tomasz Maciej Nowak <tmn505 at terefe.re> wrote:
>
> From: Tomasz Maciej Nowak <tmn505 at gmail.com>
>
> Adjusting dts will cause a rebuild of whole kernel as the buildroot
> considers this a part of kernel source. It's a royal PITA when trying to
> prepare support for new device, since this takes a lot of time on slower
> systems. As it stands, buildroot itself, with own rule, also compiles
> dtbs and the results are $(KDIR)/image-$(DEVICE_DTS).dtb. With setting
> DEVICE_DTS_DIR to directory holding the device dts (similarly to some
> other targets), buildroot doesn't consider changed dts as part of kernel
> source and rebuilds only dtb. This really speeds up development.
>
> Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>

Hi,
At first glance, it looks fine to me.
Shouldn't we be able to get rid of the
901-arm-boot-add-dts-files.patch as kernel generated DTB-s
are not used anymore.

Regards,
Robert
> ---
>  target/linux/ipq40xx/image/chromium.mk |  2 +-
>  target/linux/ipq40xx/image/generic.mk  | 20 ++++++++++----------
>  2 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/target/linux/ipq40xx/image/chromium.mk b/target/linux/ipq40xx/image/chromium.mk
> index 567a5e7ca5c7..2abd2df02ae4 100644
> --- a/target/linux/ipq40xx/image/chromium.mk
> +++ b/target/linux/ipq40xx/image/chromium.mk
> @@ -26,7 +26,7 @@ define Device/google_wifi
>         DEVICE_MODEL := WiFi (Gale)
>         SOC := qcom-ipq4019
>         KERNEL_SUFFIX := -fit-zImage.itb.vboot
> -       KERNEL = kernel-bin | fit none $$(DTS_DIR)/$$(DEVICE_DTS).dtb | cros-vboot
> +       KERNEL = kernel-bin | fit none $$(KDIR)/image-$$(DEVICE_DTS).dtb | cros-vboot
>         KERNEL_NAME := zImage
>         IMAGES += factory.bin
>         IMAGE/factory.bin := cros-gpt | append-kernel-part | append-rootfs
> diff --git a/target/linux/ipq40xx/image/generic.mk b/target/linux/ipq40xx/image/generic.mk
> index 792122f7a1ae..6daebd5ed0f5 100644
> --- a/target/linux/ipq40xx/image/generic.mk
> +++ b/target/linux/ipq40xx/image/generic.mk
> @@ -5,19 +5,19 @@ DEVICE_VARS += WRGG_DEVNAME WRGG_SIGNATURE
>
>  define Device/FitImage
>         KERNEL_SUFFIX := -fit-uImage.itb
> -       KERNEL = kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb
> +       KERNEL = kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb
>         KERNEL_NAME := Image
>  endef
>
>  define Device/FitImageLzma
>         KERNEL_SUFFIX := -fit-uImage.itb
> -       KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb
> +       KERNEL = kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(DEVICE_DTS).dtb
>         KERNEL_NAME := Image
>  endef
>
>  define Device/FitzImage
>         KERNEL_SUFFIX := -fit-zImage.itb
> -       KERNEL = kernel-bin | fit none $$(DTS_DIR)/$$(DEVICE_DTS).dtb
> +       KERNEL = kernel-bin | fit none $$(KDIR)/image-$$(DEVICE_DTS).dtb
>         KERNEL_NAME := zImage
>  endef
>
> @@ -308,8 +308,8 @@ TARGET_DEVICES += buffalo_wtr-m2133hp
>
>  define Device/cellc_rtl30vw
>         KERNEL_SUFFIX := -fit-zImage.itb
> -       KERNEL_INITRAMFS = kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb
> -       KERNEL = kernel-bin | fit none $$(DTS_DIR)/$$(DEVICE_DTS).dtb | uImage lzma | pad-to 2048
> +       KERNEL_INITRAMFS = kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb
> +       KERNEL = kernel-bin | fit none $$(KDIR)/image-$$(DEVICE_DTS).dtb | uImage lzma | pad-to 2048
>         KERNEL_NAME := zImage
>         KERNEL_IN_UBI :=
>         IMAGES := nand-factory.bin nand-sysupgrade.bin
> @@ -376,7 +376,7 @@ define Device/devolo_magic-2-wifi-next
>
>         # If the bootloader sees 0xDEADC0DE and this trailer at the 64k boundary of a TFTP image
>         # it will bootm it, just like we want for the initramfs.
> -       KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to 64k |\
> +       KERNEL_INITRAMFS := kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb | pad-to 64k |\
>                 append-string -e '\xDE\xAD\xC0\xDE{"fl_initramfs":""}\x00'
>
>         IMAGE_SIZE := 26624k
> @@ -832,7 +832,7 @@ define Device/openmesh_a42
>         SOC := qcom-ipq4018
>         DEVICE_DTS_CONFIG := config at om.a42
>         BLOCKSIZE := 64k
> -       KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
> +       KERNEL = kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
>         IMAGE_SIZE := 15616k
>         IMAGES += factory.bin
>         IMAGE/factory.bin := append-rootfs | pad-rootfs | openmesh-image ce_type=A42
> @@ -847,7 +847,7 @@ define Device/openmesh_a62
>         SOC := qcom-ipq4019
>         DEVICE_DTS_CONFIG := config at om.a62
>         BLOCKSIZE := 64k
> -       KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
> +       KERNEL = kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
>         IMAGE_SIZE := 15552k
>         IMAGES += factory.bin
>         IMAGE/factory.bin := append-rootfs | pad-rootfs | openmesh-image ce_type=A62
> @@ -889,7 +889,7 @@ define Device/plasmacloud_pa1200
>         SOC := qcom-ipq4018
>         DEVICE_DTS_CONFIG := config at pc.pa1200
>         BLOCKSIZE := 64k
> -       KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
> +       KERNEL = kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
>         IMAGE_SIZE := 15616k
>         IMAGES += factory.bin
>         IMAGE/factory.bin := append-rootfs | pad-rootfs | openmesh-image ce_type=PA1200
> @@ -904,7 +904,7 @@ define Device/plasmacloud_pa2200
>         SOC := qcom-ipq4019
>         DEVICE_DTS_CONFIG := config at pc.pa2200
>         BLOCKSIZE := 64k
> -       KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
> +       KERNEL = kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
>         IMAGE_SIZE := 15552k
>         IMAGES += factory.bin
>         IMAGE/factory.bin := append-rootfs | pad-rootfs | openmesh-image ce_type=PA2200
> --
> 2.37.2
>
>
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