diff options
| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-16 10:43:48 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-12-16 10:43:48 +0000 |
| commit | f652e6af11c670da4bbd738a1bca8b4b31ed97b4 (patch) | |
| tree | 8bb833e6e9198e80f8ba8507e4ec442d0e2823ec /libfdt_env.h | |
| parent | b7da58fd27bfbe7c14bc8a0332135663f17caecc (diff) | |
Implement device tree support needed for Bamboo emulation
To implement the -kernel, -initrd, and -append options, 4xx board emulation
must load the guest kernel as if firmware had loaded it. Where u-boot would be
the firmware, we must load the flat device tree into memory and set key fields
such as /chosen/bootargs.
This patch introduces a dependency on libfdt for flat device tree support.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6064 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'libfdt_env.h')
| -rw-r--r-- | libfdt_env.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libfdt_env.h b/libfdt_env.h new file mode 100644 index 0000000000..e154b8ef1f --- /dev/null +++ b/libfdt_env.h @@ -0,0 +1,41 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright IBM Corp. 2008 + * Authors: Hollis Blanchard <hollisb@us.ibm.com> + * + */ + +#ifndef _LIBFDT_ENV_H +#define _LIBFDT_ENV_H + +#include <stddef.h> +#include <stdint.h> +#include <string.h> +#include <endian.h> +#include <byteswap.h> + +#if __BYTE_ORDER == __BIG_ENDIAN +#define fdt32_to_cpu(x) (x) +#define cpu_to_fdt32(x) (x) +#define fdt64_to_cpu(x) (x) +#define cpu_to_fdt64(x) (x) +#else +#define fdt32_to_cpu(x) (bswap_32((x))) +#define cpu_to_fdt32(x) (bswap_32((x))) +#define fdt64_to_cpu(x) (bswap_64((x))) +#define cpu_to_fdt64(x) (bswap_64((x))) +#endif + +#endif /* _LIBFDT_ENV_H */ |