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author | David Gibson <david@gibson.dropbear.id.au> | 2008-05-16 13:22:57 +1000 |
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committer | Jon Loeliger <jdl@jdl.com> | 2008-05-19 14:12:15 -0500 |
commit | 548767f42eb00a2bac6f2a1361b7fd49f7b76908 (patch) | |
tree | f93d2d2a6c1828ab7fe6637e27281abac430c736 /livetree.c | |
parent | a742aade6a28fbebf7a66448b40b983549897253 (diff) | |
download | dtc-548767f42eb00a2bac6f2a1361b7fd49f7b76908.tar.gz |
dtc: Rework handling of boot_cpuid_phys
Currently, dtc will put the nonsense value 0xfeedbeef into the
boot_cpuid_phys field of an output blob, unless explicitly given
another value with the -b command line option. As well as being a
totally unuseful default value, this also means that dtc won't
properly preserve the boot_cpuid_phys field in -I dtb -O dtb mode.
This patch reworks things to improve the boot_cpuid handling. The new
semantics are that the output's boot_cpuid_phys value is:
the value given on the command line if -b is used
otherwise
the value from the input, if in -I dtb mode
otherwise
0
Implementation-wise we do the following:
- boot_cpuid_phys is added to struct boot_info, so that
structure now contains all of the blob's semantic information.
- dt_to_blob() and dt_to_asm() output the cpuid given in
boot_info
- dt_from_blob() fills in boot_info based on the input blob
- The other dt_from_*() functions just record 0, but we can
change this easily if e.g. we invent a way of specifying the boot cpu
in the source format.
- main() overrides the cpuid in the boot_info between input
and output if -b is given
We add some testcases to check this new behaviour.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'livetree.c')
-rw-r--r-- | livetree.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -165,13 +165,14 @@ struct reserve_info *add_reserve_entry(struct reserve_info *list, } struct boot_info *build_boot_info(struct reserve_info *reservelist, - struct node *tree) + struct node *tree, u32 boot_cpuid_phys) { struct boot_info *bi; bi = xmalloc(sizeof(*bi)); bi->reservelist = reservelist; bi->dt = tree; + bi->boot_cpuid_phys = boot_cpuid_phys; return bi; } |