sh: add support for linking a builtin device tree blob in the kernel

Signed-off-by: Rich Felker <dalias@libc.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 0d5f3a9bb315..ceeda5c1a70a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -739,6 +739,26 @@ endmenu
 
 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 || \