diff options
Diffstat (limited to 'arch/riscv/boot/dtb.c')
-rw-r--r-- | arch/riscv/boot/dtb.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/riscv/boot/dtb.c b/arch/riscv/boot/dtb.c new file mode 100644 index 0000000000..5d73413a43 --- /dev/null +++ b/arch/riscv/boot/dtb.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2016, 2018 Antony Pavlov <antonynpavlov@gmail.com> + * + * This file is part of barebox. + * + * This program 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. + * + */ +#include <common.h> +#include <init.h> +#include <of.h> + +extern char __dtb_start[]; + +static int of_riscv_init(void) +{ + struct device_node *root; + + root = of_get_root_node(); + if (root) + return 0; + + root = of_unflatten_dtb(__dtb_start); + if (!IS_ERR(root)) { + pr_debug("using internal DTB\n"); + of_set_root_node(root); + if (IS_ENABLED(CONFIG_OFDEVICE)) + of_probe(); + } + + return 0; +} +core_initcall(of_riscv_init); |