diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/fdt_support.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h index 5d4f28dc78..0edc4fa5b1 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -16,8 +16,35 @@ u32 fdt_getprop_u32_default_node(const void *fdt, int off, int cell, const char *prop, const u32 dflt); u32 fdt_getprop_u32_default(const void *fdt, const char *path, const char *prop, const u32 dflt); + +/** + * Add data to the root of the FDT before booting the OS. + * + * See doc/device-tree-bindings/root.txt + * + * @param fdt FDT address in memory + * @return 0 if ok, or -FDT_ERR_... on error + */ +int fdt_root(void *fdt); + +/** + * Add chosen data the FDT before booting the OS. + * + * In particular, this adds the kernel command line (bootargs) to the FDT. + * + * @param fdt FDT address in memory + * @return 0 if ok, or -FDT_ERR_... on error + */ int fdt_chosen(void *fdt); + +/** + * Add initrd information to the FDT before booting the OS. + * + * @param fdt FDT address in memory + * @return 0 if ok, or -FDT_ERR_... on error + */ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end); + void do_fixup_by_path(void *fdt, const char *path, const char *prop, const void *val, int len, int create); void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, |