sh: add support for linking a builtin device tree blob in the kernel
Signed-off-by: Rich Felker <dalias@libc.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 0d5f3a9..ceeda5c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -739,6 +739,26 @@
menu "Boot options"
+config USE_BUILTIN_DTB
+ bool "Use builtin DTB"
+ default n
+ depends on SH_DEVICE_TREE
+ help
+ Link a device tree blob for particular hardware into the kernel,
+ suppressing use of the DTB pointer provided by the bootloader.
+ This option should only be used with legacy bootloaders that are
+ not capable of providing a DTB to the kernel, or for experimental
+ hardware without stable device tree bindings.
+
+config BUILTIN_DTB_SOURCE
+ string "Source file for builtin DTB"
+ default ""
+ depends on USE_BUILTIN_DTB
+ help
+ Base name (without suffix, relative to arch/sh/boot/dts) for the
+ a DTS file that will be used to produce the DTB linked into the
+ kernel.
+
config ZERO_PAGE_OFFSET
hex
default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \