diff options
| author |   David Gibson <david@gibson.dropbear.id.au> | 2007-06-13 14:53:00 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-06-14 22:30:16 +1000 |
| commit | 85aecac8d2893372c618bac373e2de9cf102dfbc (patch) | |
| tree | 7684b8b8818bc5ee420f9e30cce164da28b29260 /arch/powerpc/boot/cuboot.h | |
| parent | [POWERPC] Derive ebc ranges property from EBC registers (diff) | |
| download | linux-dev-85aecac8d2893372c618bac373e2de9cf102dfbc.tar.xz linux-dev-85aecac8d2893372c618bac373e2de9cf102dfbc.zip | |
[POWERPC] Consolidate cuboot initialization code
The various cuboot platforms (i.e. pre-device tree aware u-boot for
83xx, 85xx and Ebony) share a certain amount of code for parsing the
boot parameters. To a certain extent that's inevitable, since they
platforms have different definitions of the bd_t structure. However,
with some macro work and a helper function, this patch improves the
situation a bit.
In the process, this fixes a bug on Ebony, which was incorrectly
handling the parameters passed form u-boot for the command line (the
bug was copied from 83xx and 85xx which have subsequently been fixed).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/cuboot.h')
| -rw-r--r-- | arch/powerpc/boot/cuboot.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/boot/cuboot.h b/arch/powerpc/boot/cuboot.h new file mode 100644 index 000000000000..cd2aa7f348f3 --- /dev/null +++ b/arch/powerpc/boot/cuboot.h @@ -0,0 +1,14 @@ +#ifndef _PPC_BOOT_CUBOOT_H_ +#define _PPC_BOOT_CUBOOT_H_ + +void cuboot_init(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + unsigned long end_of_ram); + +#define CUBOOT_INIT() \ + do { \ + memcpy(&bd, (bd_t *)r3, sizeof(bd)); \ + cuboot_init(r4, r5, r6, r7, bd.bi_memstart + bd.bi_memsize); \ + } while (0) + +#endif /* _PPC_BOOT_CUBOOT_H_ */ |