diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/fdt.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 51776166d2b..bfbfda54376 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -785,6 +785,32 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) } #endif +bool __init early_init_dt_scan(void *params) +{ + if (!params) + return false; + + /* Setup flat device-tree pointer */ + initial_boot_params = params; + + /* check device tree validity */ + if (be32_to_cpu(initial_boot_params->magic) != OF_DT_HEADER) { + initial_boot_params = NULL; + return false; + } + + /* Retrieve various information from the /chosen node */ + of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line); + + /* Initialize {size,address}-cells info */ + of_scan_flat_dt(early_init_dt_scan_root, NULL); + + /* Setup memory, calling early_init_dt_add_memory_arch */ + of_scan_flat_dt(early_init_dt_scan_memory, NULL); + + return true; +} + /** * unflatten_device_tree - create tree of device_nodes from flat blob * |