libfdt can be useful for very early device tree parsing, so compile it
for barobox aswell. This is done the same way as done in the Kernel:
we put C files with the same name as in libfdt into lib/ and just
include the libfdt files from there.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
include/fdt.h | 69 +-------------------------------------
include/linux/libfdt.h | 8 +++++
include/linux/libfdt_env.h | 19 +++++++++++
lib/Kconfig | 3 ++
lib/Makefile | 10 ++++++
lib/fdt.c | 2 ++
lib/fdt_empty_tree.c | 2 ++
lib/fdt_ro.c | 2 ++
lib/fdt_rw.c | 2 ++
lib/fdt_strerror.c | 2 ++
lib/fdt_sw.c | 2 ++
lib/fdt_wip.c | 2 ++
12 files changed, 55 insertions(+), 68 deletions(-)
create mode 100644 include/linux/libfdt.h
create mode 100644 include/linux/libfdt_env.h
create mode 100644 lib/fdt.c
create mode 100644 lib/fdt_empty_tree.c
create mode 100644 lib/fdt_ro.c
create mode 100644 lib/fdt_rw.c
create mode 100644 lib/fdt_strerror.c
create mode 100644 lib/fdt_sw.c
create mode 100644 lib/fdt_wip.c
diff --git a/include/fdt.h b/include/fdt.h
index 1ccd4c6734..38a2d27b02 100644
--- a/include/fdt.h
+++ b/include/fdt.h
@@ -3,73 +3,6 @@
#include <linux/types.h>
-#ifndef __ASSEMBLY__
-
-#define _B(n) ((unsigned long long)((uint8_t *)&x)[n])
-
-#define fdt32_to_cpu(x) be32_to_cpu(x)
-#define cpu_to_fdt32(x) cpu_to_be32(x)
-
-static inline uint64_t fdt64_to_cpu(uint64_t x)
-{
- return (_B(0) << 56) | (_B(1) << 48) | (_B(2) << 40) | (_B(3) << 32)
- | (_B(4) << 24) | (_B(5) << 16) | (_B(6) << 8) | _B(7);
-}
-#define cpu_to_fdt64(x) fdt64_to_cpu(x)
-#undef _B
-
-struct fdt_header {
- uint32_t magic; /* magic word FDT_MAGIC */
- uint32_t totalsize; /* total size of DT block */
- uint32_t off_dt_struct; /* offset to structure */
- uint32_t off_dt_strings; /* offset to strings */
- uint32_t off_mem_rsvmap; /* offset to memory reserve map */
- uint32_t version; /* format version */
- uint32_t last_comp_version; /* last compatible version */
-
- /* version 2 fields below */
- uint32_t boot_cpuid_phys; /* Which physical CPU id we're
- booting on */
- /* version 3 fields below */
- uint32_t size_dt_strings; /* size of the strings block */
-
- /* version 17 fields below */
- uint32_t size_dt_struct; /* size of the structure block */
-};
-
-struct fdt_reserve_entry {
- uint64_t address;
- uint64_t size;
-};
-
-struct fdt_node_header {
- uint32_t tag;
- char name[0];
-};
-
-struct fdt_property {
- uint32_t tag;
- uint32_t len;
- uint32_t nameoff;
- char data[0];
-};
-
-#endif /* !__ASSEMBLY */
-
-#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
-#define FDT_TAGSIZE sizeof(uint32_t)
-
-#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
-#define FDT_END_NODE 0x2 /* End node */
-#define FDT_PROP 0x3 /* Property: name off,
- size, content */
-#define FDT_NOP 0x4 /* nop */
-#define FDT_END 0x9
-
-#define FDT_V1_SIZE (7*sizeof(uint32_t))
-#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
-#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
-#define FDT_V16_SIZE FDT_V3_SIZE
-#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
+#include <linux/libfdt.h>
#endif /* _FDT_H */
diff --git a/include/linux/libfdt.h b/include/linux/libfdt.h
new file mode 100644
index 0000000000..ef2467213b
--- /dev/null
+++ b/include/linux/libfdt.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _INCLUDE_LIBFDT_H_
+#define _INCLUDE_LIBFDT_H_
+
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/libfdt.h"
+
+#endif /* _INCLUDE_LIBFDT_H_ */
diff --git a/include/linux/libfdt_env.h b/include/linux/libfdt_env.h
new file mode 100644
index 0000000000..edb0f0c309
--- /dev/null
+++ b/include/linux/libfdt_env.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef LIBFDT_ENV_H
+#define LIBFDT_ENV_H
+
+#include <linux/kernel.h> /* For INT_MAX */
+#include <linux/string.h>
+
+#include <asm/byteorder.h>
+
+typedef __be16 fdt16_t;
+typedef __be32 fdt32_t;
+typedef __be64 fdt64_t;
+
+#define fdt32_to_cpu(x) be32_to_cpu(x)
+#define cpu_to_fdt32(x) cpu_to_be32(x)
+#define fdt64_to_cpu(x) be64_to_cpu(x)
+#define cpu_to_fdt64(x) cpu_to_be64(x)
+
+#endif /* LIBFDT_ENV_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index af178217f8..f75eba9220 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -100,6 +100,9 @@ config FSL_QE_FIRMWARE
select CRC32
bool
+config LIBFDT
+ bool
+
config RATP
select CRC_ITU_T
bool "RATP protocol support"
diff --git a/lib/Makefile b/lib/Makefile
index 161d3a756e..a07ceb15ab 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -79,3 +79,13 @@ obj-$(CONFIG_GENERIC_LIB_LSHRDI3) += lshrdi3.o
obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
pbl-$(CONFIG_GENERIC_LIB_ASHLDI3) += ashldi3.o
+
+libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \
+ fdt_empty_tree.o
+$(foreach file, $(libfdt_files), \
+ $(eval CFLAGS_$(file) = -I $(srctree)/scripts/dtc/libfdt))
+$(foreach file, $(libfdt_files), \
+ $(eval CFLAGS_pbl-$(file) = -I $(srctree)/scripts/dtc/libfdt))
+
+obj-pbl-$(CONFIG_LIBFDT) += $(libfdt_files)
+
diff --git a/lib/fdt.c b/lib/fdt.c
new file mode 100644
index 0000000000..97f20069fc
--- /dev/null
+++ b/lib/fdt.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt.c"
diff --git a/lib/fdt_empty_tree.c b/lib/fdt_empty_tree.c
new file mode 100644
index 0000000000..5d30c58150
--- /dev/null
+++ b/lib/fdt_empty_tree.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_empty_tree.c"
diff --git a/lib/fdt_ro.c b/lib/fdt_ro.c
new file mode 100644
index 0000000000..f73c04ea7b
--- /dev/null
+++ b/lib/fdt_ro.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_ro.c"
diff --git a/lib/fdt_rw.c b/lib/fdt_rw.c
new file mode 100644
index 0000000000..0c1f0f4a4b
--- /dev/null
+++ b/lib/fdt_rw.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_rw.c"
diff --git a/lib/fdt_strerror.c b/lib/fdt_strerror.c
new file mode 100644
index 0000000000..8713e3ff47
--- /dev/null
+++ b/lib/fdt_strerror.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_strerror.c"
diff --git a/lib/fdt_sw.c b/lib/fdt_sw.c
new file mode 100644
index 0000000000..9ac7e50c76
--- /dev/null
+++ b/lib/fdt_sw.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_sw.c"
diff --git a/lib/fdt_wip.c b/lib/fdt_wip.c
new file mode 100644
index 0000000000..45b3fc3d3b
--- /dev/null
+++ b/lib/fdt_wip.c
@@ -0,0 +1,2 @@
+#include <linux/libfdt_env.h>
+#include "../scripts/dtc/libfdt/fdt_wip.c"
--
2.20.1
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