Messages in this thread Patch in this message | | | From | Alexandre Belloni <> | Subject | [PATCH 2/2] mips: generic: allow not building DTB in | Date | Wed, 25 Apr 2018 23:16:07 +0200 |
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Allow not building any DTB in the generic kernel so it gets smaller. This is necessary for ocelot because it can be built as a legacy platform that needs a built-in DTB and it can also handle a separate DTB once it is updated with a more modern bootloader. In the latter case, it is preferable to not include any DTB in the kernel image so it is smaller.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> --- arch/mips/Kconfig | 1 - arch/mips/Makefile | 2 +- arch/mips/boot/dts/mscc/Makefile | 2 +- arch/mips/generic/Kconfig | 1 + arch/mips/generic/vmlinux.its.S | 2 ++ 5 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 225c95da23ce..61057761d096 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -81,7 +81,6 @@ choice config MIPS_GENERIC bool "Generic board-agnostic MIPS kernel" select BOOT_RAW - select BUILTIN_DTB select CEVT_R4K select CLKSRC_MIPS_GIC select COMMON_CLK diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 5e9fce076ab6..3d3554c13710 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -404,7 +404,7 @@ endif CLEAN_FILES += vmlinux.32 vmlinux.64 # device-trees -core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ +core-y += arch/mips/boot/dts/ %.dtb %.dtb.S %.dtb.o: | scripts $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ diff --git a/arch/mips/boot/dts/mscc/Makefile b/arch/mips/boot/dts/mscc/Makefile index 8982b19504a3..437ec65ec14a 100644 --- a/arch/mips/boot/dts/mscc/Makefile +++ b/arch/mips/boot/dts/mscc/Makefile @@ -1,3 +1,3 @@ dtb-$(CONFIG_MSCC_OCELOT) += ocelot_pcb123.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-($CONFIG_BUILTIN_DTB) += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig index 6564f18b2012..012f283f99c4 100644 --- a/arch/mips/generic/Kconfig +++ b/arch/mips/generic/Kconfig @@ -3,6 +3,7 @@ if MIPS_GENERIC config LEGACY_BOARDS bool + select BUILTIN_DTB help Select this from your board if the board must use a legacy, non-UHI, boot protocol. This will cause the kernel to scan through the list of diff --git a/arch/mips/generic/vmlinux.its.S b/arch/mips/generic/vmlinux.its.S index 1a08438fd893..9c954f2ae561 100644 --- a/arch/mips/generic/vmlinux.its.S +++ b/arch/mips/generic/vmlinux.its.S @@ -21,6 +21,7 @@ }; }; +#if IS_ENABLED(CONFIG_BUILTIN_DTB) configurations { default = "conf@default"; @@ -29,4 +30,5 @@ kernel = "kernel@0"; }; }; +#endif }; -- 2.17.0
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