Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 147 insertions, 0 deletions

diff --git a/include/grub/fdt.h b/include/grub/fdt.h
new file mode 100644
index 0000000..e609c7e
--- /dev/null
+++ b/include/grub/fdt.h
@@ -0,0 +1,147 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_FDT_HEADER
+#define GRUB_FDT_HEADER	1
+
+#include <grub/types.h>
+#include <grub/symbol.h>
+
+/* Space required when preparing the /chosen node after boot has been called. */
+#define GRUB_EFI_LINUX_FDT_EXTRA_SPACE 0x400
+
+#define FDT_MAGIC 0xD00DFEED
+
+typedef struct {
+	grub_uint32_t magic;
+	grub_uint32_t totalsize;
+	grub_uint32_t off_dt_struct;
+	grub_uint32_t off_dt_strings;
+	grub_uint32_t off_mem_rsvmap;
+	grub_uint32_t version;
+	grub_uint32_t last_comp_version;
+	grub_uint32_t boot_cpuid_phys;
+	grub_uint32_t size_dt_strings;
+	grub_uint32_t size_dt_struct;
+} grub_fdt_header_t;
+
+struct grub_fdt_empty_tree {
+  grub_fdt_header_t header;
+  grub_uint64_t empty_rsvmap[2];
+  struct {
+    grub_uint32_t node_start;
+    grub_uint8_t name[1];
+    grub_uint32_t node_end;
+    grub_uint32_t tree_end;
+  } empty_node;
+};
+
+#define GRUB_FDT_EMPTY_TREE_SZ  sizeof (struct grub_fdt_empty_tree)
+
+/* Size needed by a property entry: 1 token (FDT_PROPERTY), plus len and nameoff
+   fields, plus the property value, plus padding if needed. */
+#define grub_fdt_prop_entry_size(prop_len)						\
+  (3 * sizeof(grub_uint32_t) + ALIGN_UP(prop_len, sizeof(grub_uint32_t)))
+
+#define grub_fdt_get_header(fdt, field)	\
+	grub_be_to_cpu32(((const grub_fdt_header_t *)(fdt))->field)
+#define grub_fdt_set_header(fdt, field, value)	\
+	((grub_fdt_header_t *)(fdt))->field = grub_cpu_to_be32(value)
+
+#define grub_fdt_get_magic(fdt)	\
+	grub_fdt_get_header(fdt, magic)
+#define grub_fdt_set_magic(fdt, value)	\
+	grub_fdt_set_header(fdt, magic, value)
+#define grub_fdt_get_totalsize(fdt)	\
+	grub_fdt_get_header(fdt, totalsize)
+#define grub_fdt_set_totalsize(fdt, value)	\
+	grub_fdt_set_header(fdt, totalsize, value)
+#define grub_fdt_get_off_dt_struct(fdt)	\
+	grub_fdt_get_header(fdt, off_dt_struct)
+#define grub_fdt_set_off_dt_struct(fdt, value)	\
+	grub_fdt_set_header(fdt, off_dt_struct, value)
+#define grub_fdt_get_off_dt_strings(fdt)	\
+	grub_fdt_get_header(fdt, off_dt_strings)
+#define grub_fdt_set_off_dt_strings(fdt, value)	\
+	grub_fdt_set_header(fdt, off_dt_strings, value)
+#define grub_fdt_get_off_mem_rsvmap(fdt)	\
+	grub_fdt_get_header(fdt, off_mem_rsvmap)
+#define grub_fdt_set_off_mem_rsvmap(fdt, value)	\
+	grub_fdt_set_header(fdt, off_mem_rsvmap, value)
+#define grub_fdt_get_version(fdt)	\
+	grub_fdt_get_header(fdt, version)
+#define grub_fdt_set_version(fdt, value)	\
+	grub_fdt_set_header(fdt, version, value)
+#define grub_fdt_get_last_comp_version(fdt)	\
+	grub_fdt_get_header(fdt, last_comp_version)
+#define grub_fdt_set_last_comp_version(fdt, value)	\
+	grub_fdt_set_header(fdt, last_comp_version, value)
+#define grub_fdt_get_boot_cpuid_phys(fdt)	\
+	grub_fdt_get_header(fdt, boot_cpuid_phys)
+#define grub_fdt_set_boot_cpuid_phys(fdt, value)	\
+	grub_fdt_set_header(fdt, boot_cpuid_phys, value)
+#define grub_fdt_get_size_dt_strings(fdt)	\
+	grub_fdt_get_header(fdt, size_dt_strings)
+#define grub_fdt_set_size_dt_strings(fdt, value)	\
+	grub_fdt_set_header(fdt, size_dt_strings, value)
+#define grub_fdt_get_size_dt_struct(fdt)	\
+	grub_fdt_get_header(fdt, size_dt_struct)
+#define grub_fdt_set_size_dt_struct(fdt, value)	\
+	grub_fdt_set_header(fdt, size_dt_struct, value)
+
+int EXPORT_FUNC(grub_fdt_create_empty_tree) (void *fdt, unsigned int size);
+int EXPORT_FUNC(grub_fdt_check_header) (const void *fdt, unsigned int size);
+int EXPORT_FUNC(grub_fdt_check_header_nosize) (const void *fdt);
+int EXPORT_FUNC(grub_fdt_find_subnode) (const void *fdt, unsigned int parentoffset,
+					const char *name);
+int EXPORT_FUNC(grub_fdt_first_node) (const void *fdt, unsigned int parentoffset);
+int EXPORT_FUNC(grub_fdt_next_node) (const void *fdt, unsigned int currentoffset);
+int EXPORT_FUNC(grub_fdt_add_subnode) (void *fdt, unsigned int parentoffset,
+			  const char *name);
+const char *
+EXPORT_FUNC(grub_fdt_get_nodename) (const void *fdt, unsigned int nodeoffset);
+const void *EXPORT_FUNC(grub_fdt_get_prop) (const void *fdt, unsigned int nodeoffset, const char *name,
+					    grub_uint32_t *len);
+
+int EXPORT_FUNC(grub_fdt_set_prop) (void *fdt, unsigned int nodeoffset, const char *name,
+				    const void *val, grub_uint32_t len);
+#define grub_fdt_set_prop32(fdt, nodeoffset, name, val)	\
+({ \
+  grub_uint32_t _val = grub_cpu_to_be32(val); \
+  grub_fdt_set_prop ((fdt), (nodeoffset), (name), &_val, 4);	\
+})
+
+#define grub_fdt_set_prop64(fdt, nodeoffset, name, val)        \
+({ \
+  grub_uint64_t _val = grub_cpu_to_be64(val); \
+  grub_fdt_set_prop ((fdt), (nodeoffset), (name), &_val, 8);   \
+})
+
+/* Setup "reg" property for
+ * #address-cells = <0x2>
+ * #size-cells = <0x2>
+ */
+#define grub_fdt_set_reg64(fdt, nodeoffset, addr, size)        \
+({ \
+  grub_uint64_t reg_64[2]; \
+  reg_64[0] = grub_cpu_to_be64(addr); \
+  reg_64[1] = grub_cpu_to_be64(size); \
+  grub_fdt_set_prop ((fdt), (nodeoffset), "reg", reg_64, 16);  \
+})
+
+#endif	/* ! GRUB_FDT_HEADER */