[U-Boot] [PATCH v1 01/18] MIPS: Prepare device-tree support.

[Purna Chandra Mandal <purna.mandal@microchip.com>]

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
---

 arch/Kconfig                      |  1 +
 arch/mips/config.mk               |  3 +++
 arch/mips/dts/.gitignore          |  1 +
 arch/mips/dts/Makefile            | 16 ++++++++++++++++
 arch/mips/dts/include/dt-bindings |  1 +
 arch/mips/dts/skeleton.dtsi       | 21 +++++++++++++++++++++
 dts/Makefile                      |  2 +-
 7 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/dts/.gitignore
 create mode 100644 arch/mips/dts/Makefile
 create mode 120000 arch/mips/dts/include/dt-bindings
 create mode 100644 arch/mips/dts/skeleton.dtsi

diff --git a/arch/Kconfig b/arch/Kconfig
index 6489cc9..589fc47 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -54,6 +54,7 @@ config MIPS
     select HAVE_PRIVATE_LIBGCC
     select HAVE_GENERIC_BOARD
     select SYS_GENERIC_BOARD
+    select SUPPORT_OF_CONTROL
 
 config NDS32
     bool "NDS32 architecture"
diff --git a/arch/mips/config.mk b/arch/mips/config.mk
index 52e28f2..d4d688e 100644
--- a/arch/mips/config.mk
+++ b/arch/mips/config.mk
@@ -70,3 +70,6 @@ PLATFORM_RELFLAGS        += -ffunction-sections -fdata-sections
 LDFLAGS_FINAL            += --gc-sections -pie
 OBJCOPYFLAGS            += -j .text -j .rodata -j .data -j .got
 OBJCOPYFLAGS            += -j .u_boot_list -j .rel.dyn -j .padding
+ifdef CONFIG_OF_EMBED
+OBJCOPYFLAGS            += -j .dtb.init.rodata
+endif
diff --git a/arch/mips/dts/.gitignore b/arch/mips/dts/.gitignore
new file mode 100644
index 0000000..b60ed20
--- /dev/null
+++ b/arch/mips/dts/.gitignore
@@ -0,0 +1 @@
+*.dtb
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
new file mode 100644
index 0000000..724b5d2
--- /dev/null
+++ b/arch/mips/dts/Makefile
@@ -0,0 +1,16 @@
+#
+# SPDX-License-Identifier:    GPL-2.0+
+#
+
+#dtb-$(CONFIG_XXX) += xxx.dtb
+
+targets += $(dtb-y)
+
+# Add any required device tree compiler flags here
+DTC_FLAGS +=
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+    @:
+
+clean-files := *.dtb
diff --git a/arch/mips/dts/include/dt-bindings b/arch/mips/dts/include/dt-bindings
new file mode 120000
index 0000000..0cecb3d
--- /dev/null
+++ b/arch/mips/dts/include/dt-bindings
@@ -0,0 +1 @@
+../../../../include/dt-bindings
\ No newline at end of file
diff --git a/arch/mips/dts/skeleton.dtsi b/arch/mips/dts/skeleton.dtsi
new file mode 100644
index 0000000..ad41546
--- /dev/null
+++ b/arch/mips/dts/skeleton.dtsi
@@ -0,0 +1,21 @@
+/*
+ * Skeleton device tree; the bare minimum needed to boot; just include and
+ * add a compatible value.  The bootloader will typically populate the memory
+ * node.
+ */
+
+/ {
+    #address-cells = <1>;
+    #size-cells = <1>;
+
+    chosen {
+    };
+
+    aliases {
+    };
+
+    memory {
+        device_type = "memory";
+        reg = <0 0>;
+    };
+};
diff --git a/dts/Makefile b/dts/Makefile
index d3122aa..5c3a01f 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -45,4 +45,4 @@ dtbs: $(obj)/dt.dtb
 clean-files := dt.dtb.S
 
 # Let clean descend into dts directories
-subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/sandbox/dts ../arch/x86/dts
+subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/mips/dts
-- 
1.8.3.1