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Date: Wed, 21 Feb 2024 03:03:57 +0800 From: Yangyu Chen <cyy@...self.name> To: linux-riscv@...ts.infradead.org Cc: Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, Conor Dooley <conor@...nel.org>, linux-kernel@...r.kernel.org, Masahiro Yamada <masahiroy@...nel.org>, Alexandre Ghiti <alex@...ti.fr>, Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org, Yangyu Chen <cyy@...self.name> Subject: [RFC PATCH 1/1] riscv: dts: Allow BUILTIN_DTB for all socs The BUILTIN_DTB kernel feature on RISC-V only works on K210 SoC only. This patch moved this configuration to entire riscv. Signed-off-by: Yangyu Chen <cyy@...self.name> --- arch/riscv/Kconfig | 16 ++++++++++++++- arch/riscv/Kconfig.socs | 32 ----------------------------- arch/riscv/boot/dts/Makefile | 2 +- arch/riscv/boot/dts/canaan/Makefile | 2 -- 4 files changed, 16 insertions(+), 36 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index b49016bb5077..23d501561e64 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -996,7 +996,21 @@ config RISCV_ISA_FALLBACK config BUILTIN_DTB bool "Built-in device tree" depends on OF && NONPORTABLE - default y if XIP_KERNEL + default y if XIP_KERNEL || SOC_CANAAN + help + Build a device tree into the Linux image. + This option should be selected if no bootloader is being used. + If unsure, say Y. + + +config BUILTIN_DTB_SOURCE + string "Built-in device tree source" + depends on BUILTIN_DTB + default "canaan/k210_generic" if SOC_CANAAN + help + DTS file path (without suffix, relative to arch/riscv/boot/dts) + for the DTS file that will be used to produce the DTB linked into the + kernel. endmenu # "Boot options" diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index e08e91c49abe..623de5f8a208 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs @@ -84,36 +84,4 @@ config SOC_CANAAN help This enables support for Canaan Kendryte K210 SoC platform hardware. -if ARCH_CANAAN - -config ARCH_CANAAN_K210_DTB_BUILTIN - def_bool SOC_CANAAN_K210_DTB_BUILTIN - -config SOC_CANAAN_K210_DTB_BUILTIN - bool "Builtin device tree for the Canaan Kendryte K210" - depends on ARCH_CANAAN - default y - select OF - select BUILTIN_DTB - help - Build a device tree for the Kendryte K210 into the Linux image. - This option should be selected if no bootloader is being used. - If unsure, say Y. - -config ARCH_CANAAN_K210_DTB_SOURCE - string - default SOC_CANAAN_K210_DTB_SOURCE - -config SOC_CANAAN_K210_DTB_SOURCE - string "Source file for the Canaan Kendryte K210 builtin DTB" - depends on ARCH_CANAAN - depends on ARCH_CANAAN_K210_DTB_BUILTIN - default "k210_generic" - help - Base name (without suffix, relative to arch/riscv/boot/dts/canaan) - for the DTS file that will be used to produce the DTB linked into the - kernel. - -endif # ARCH_CANAAN - endmenu # "SoC selection" diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile index 72030fd727af..318239d9423b 100644 --- a/arch/riscv/boot/dts/Makefile +++ b/arch/riscv/boot/dts/Makefile @@ -8,4 +8,4 @@ subdir-y += sophgo subdir-y += starfive subdir-y += thead -obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix /, $(subdir-y)) +obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix .dtb.o, $(CONFIG_BUILTIN_DTB_SOURCE)) \ No newline at end of file diff --git a/arch/riscv/boot/dts/canaan/Makefile b/arch/riscv/boot/dts/canaan/Makefile index 520623264c87..987d1f0c41f0 100644 --- a/arch/riscv/boot/dts/canaan/Makefile +++ b/arch/riscv/boot/dts/canaan/Makefile @@ -5,5 +5,3 @@ dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maix_bit.dtb dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maix_dock.dtb dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maix_go.dtb dtb-$(CONFIG_ARCH_CANAAN) += sipeed_maixduino.dtb - -obj-$(CONFIG_ARCH_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .dtb.o, $(CONFIG_ARCH_CANAAN_K210_DTB_SOURCE)) -- 2.43.0
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