diff options
Diffstat (limited to 'drivers/core/ofnode.c')
| -rw-r--r-- | drivers/core/ofnode.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index ec574c44607..8df16e56af5 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -12,6 +12,7 @@ #include <fdt_support.h> #include <log.h> #include <malloc.h> +#include <of_live.h> #include <linux/libfdt.h> #include <dm/of_access.h> #include <dm/of_addr.h> @@ -51,6 +52,20 @@ static oftree oftree_ensure(void *fdt) oftree tree; int i; + if (of_live_active()) { + struct device_node *root; + int ret; + + ret = unflatten_device_tree(fdt, &root); + if (ret) { + log_err("Failed to create live tree: err=%d\n", ret); + return oftree_null(); + } + tree = oftree_from_np(root); + + return tree; + } + if (gd->flags & GD_FLG_RELOC) { i = oftree_find(fdt); if (i == -1) { @@ -67,7 +82,7 @@ static oftree oftree_ensure(void *fdt) } } else { if (fdt != gd->fdt_blob) { - log_debug("Cannot only access control FDT before relocation\n"); + log_debug("Only the control FDT can be accessed before relocation\n"); return oftree_null(); } } @@ -77,6 +92,12 @@ static oftree oftree_ensure(void *fdt) return tree; } +void oftree_dispose(oftree tree) +{ + if (of_live_active()) + of_live_free(tree.np); +} + void *ofnode_lookup_fdt(ofnode node) { if (gd->flags & GD_FLG_RELOC) { @@ -133,6 +154,10 @@ oftree oftree_from_fdt(void *fdt) if (CONFIG_IS_ENABLED(OFNODE_MULTI_TREE)) return oftree_ensure(fdt); +#ifdef OF_CHECKS + if (of_live_active()) + return oftree_null(); +#endif tree.fdt = fdt; return tree; |