On Thu, Dec 28, 2023 at 03:09:41PM +0000, Simon Glass wrote:
Hi Tom,
On Thu, Dec 28, 2023 at 1:56 PM Tom Rini trini@konsulko.com wrote:
On Thu, Dec 28, 2023 at 01:37:11PM +0000, Simon Glass wrote:
Hi Sumit,
On Thu, Dec 28, 2023 at 11:59 AM Sumit Garg sumit.garg@linaro.org wrote:
Although there were still some variations in board DTS files based on meson-gxbb SoC but I think those were minor differences from upstream and shouldn't impact boot on these devices.
So switch to upstream DT via mirroring amlogic/ directory from devicetree-rebasing/src/arm64/amlogic/ directory. And thereby directly building DTB from there including *-u-boot.dtsi files from arch/$(ARCH)/dts/ directory.
Reviewed-by: Neil Armstrong neil.armstrong@linaro.org Signed-off-by: Sumit Garg sumit.garg@linaro.org
Changes in v3:
- Dropped Makefile portion and enabled OF_UPSTREAM for SoC instead.
Changes in v2:
- Picked up review tag
arch/arm/mach-meson/Kconfig | 1 + configs/nanopi-k2_defconfig | 2 +- configs/odroid-c2_defconfig | 2 +- configs/p200_defconfig | 2 +- configs/p201_defconfig | 2 +- configs/videostrong-kii-pro_defconfig | 2 +- configs/wetek-hub_defconfig | 2 +- configs/wetek-play2_defconfig | 2 +- dts/arch/arm64/amlogic | 1 + 9 files changed, 9 insertions(+), 7 deletions(-) create mode 120000 dts/arch/arm64/amlogic
Reviewed-by: Simon Glass sjg@chromium.org
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig index d6c89058061..8ddb59161a0 100644 --- a/arch/arm/mach-meson/Kconfig +++ b/arch/arm/mach-meson/Kconfig @@ -25,6 +25,7 @@ choice config MESON_GXBB bool "GXBB" select MESON_GX
imply OF_UPSTREAM help Select this if your SoC is an S905diff --git a/configs/nanopi-k2_defconfig b/configs/nanopi-k2_defconfig index 41dbf7981f8..2e1c756bf7a 100644 --- a/configs/nanopi-k2_defconfig +++ b/configs/nanopi-k2_defconfig @@ -6,7 +6,7 @@ CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x20000000 CONFIG_ENV_SIZE=0x2000 CONFIG_DM_GPIO=y -CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-nanopi-k2" +CONFIG_DEFAULT_DEVICE_TREE="amlogic/meson-gxbb-nanopi-k2" CONFIG_OF_LIBFDT_OVERLAY=y CONFIG_DM_RESET=y CONFIG_DEBUG_UART_BASE=0xc81004c0
So now I am wondering if we can (later) have the SoC be implied when using OF_UPSTREAM so we can do:
CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-nanopi-k2"
and it will add the 'amlogic/' automatically?
Perhaps that might be a way to bridge the gap in terms of file layout?
That's going to start to look real ugly real quick I suspect and I'm not sure what it really gets us? It seems to me that the convention of "vendor/board" has already been well enough adapted outside of the kernel, with the odd sticking point being getting everyone used to whatever will be happening for 32bit boards long term. So I think hiding the vendor part of the string here will be more, not less, confusing long term.
Now that I dig in a bit, I see that the devicetree-rebasing tree does not have any Makefiles in it. How does Linux build with it? Does anyone have instructions?
Linux doesn't build with it, it's the relevant parts of the kernel tree extracted for other projects to more easily use (more or less).