diff options
Diffstat (limited to 'arch/openrisc/lib')
| -rw-r--r-- | arch/openrisc/lib/Makefile | 1 | ||||
| -rw-r--r-- | arch/openrisc/lib/dtb.c | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/openrisc/lib/Makefile b/arch/openrisc/lib/Makefile index 0b3cc5068c..62082feed0 100644 --- a/arch/openrisc/lib/Makefile +++ b/arch/openrisc/lib/Makefile @@ -5,3 +5,4 @@ obj-y += muldi3.o obj-y += lshrdi3.o obj-y += ashldi3.o obj-y += ashrdi3.o +obj-$(CONFIG_BUILTIN_DTB) += dtb.o diff --git a/arch/openrisc/lib/dtb.c b/arch/openrisc/lib/dtb.c new file mode 100644 index 0000000000..4f63a7760f --- /dev/null +++ b/arch/openrisc/lib/dtb.c @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2014 Antony Pavlov <antonynpavlov@gmail.com> + * + * Based on arch/arm/cpu/dtb.c: + * Copyright (C) 2013 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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_openrisc_init(void) +{ + struct device_node *root; + + root = of_get_root_node(); + if (root) + return 0; + + root = of_unflatten_dtb(__dtb_start); + if (root) { + pr_debug("using internal DTB\n"); + of_set_root_node(root); + if (IS_ENABLED(CONFIG_OFDEVICE)) + of_probe(); + } + + return 0; +} +core_initcall(of_openrisc_init); |