diff options
author | Marc Kleine-Budde <mkl@pengutronix.de> | 2015-03-03 13:14:47 +0100 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-03-06 07:42:21 +0100 |
commit | 09d343e941e039afa19b5ead777780e1f799cab4 (patch) | |
tree | 4a00a0f22d4165a74f2f5bd21dd53c2f03633ea2 /arch/sandbox/board | |
parent | 1b756f522686d3f469f1ff3363ce158d3d45f204 (diff) | |
download | barebox-09d343e941e039afa19b5ead777780e1f799cab4.tar.gz barebox-09d343e941e039afa19b5ead777780e1f799cab4.tar.xz |
sandbox: add support to pass dtb to barebox
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/sandbox/board')
-rw-r--r-- | arch/sandbox/board/Makefile | 1 | ||||
-rw-r--r-- | arch/sandbox/board/dtb.c | 67 |
2 files changed, 68 insertions, 0 deletions
diff --git a/arch/sandbox/board/Makefile b/arch/sandbox/board/Makefile index 5104f5cb26..460116332d 100644 --- a/arch/sandbox/board/Makefile +++ b/arch/sandbox/board/Makefile @@ -3,5 +3,6 @@ obj-y += clock.o obj-y += hostfile.o obj-y += console.o obj-y += devices.o +obj-y += dtb.o extra-y += barebox.lds diff --git a/arch/sandbox/board/dtb.c b/arch/sandbox/board/dtb.c new file mode 100644 index 0000000000..af4a64a9c7 --- /dev/null +++ b/arch/sandbox/board/dtb.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * Copyright (c) 2015 Marc Kleine-Budde <mkl@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> + +#include <mach/linux.h> +#include <linux/err.h> + +static const void *dtb; + +int barebox_register_dtb(const void *new_dtb) +{ + if (dtb) + return -EBUSY; + + dtb = new_dtb; + + return 0; +} + +static int of_sandbox_init(void) +{ + struct device_node *root; + int ret; + + if (dtb) { + root = of_unflatten_dtb(dtb); + } else { + root = of_new_node(NULL, NULL); + + ret = of_property_write_u32(root, "#address-cells", 2); + if (ret) + return ret; + + ret = of_property_write_u32(root, "#size-cells", 1); + if (ret) + return ret; + } + + if (IS_ERR(root)) + return PTR_ERR(root); + + of_set_root_node(root); + of_fix_tree(root); + if (IS_ENABLED(CONFIG_OFDEVICE)) + of_probe(); + + return 0; +} +core_initcall(of_sandbox_init); |