* conf/powerpc-ieee1275.rmk: Enable grub-mkdevicemap and grub-probe.
* include/grub/partition.h: Declare grub_apple_partition_map_init and
grub_apple_partition_map_fini.
* util/biosdisk.c
(grub_util_biosdisk_open): Replace BLKGETSIZE with BLKGETSIZE64 (needed
to access >2 TiB disks).
Print disk->total_sectors with %llu instead of %lu, since this
variable is always 64-bit (prevents wrong disk size from being displayed
on either >2 TiB disk or big-endian CPU).
(grub_util_biosdisk_get_grub_dev): Convert gpt_partition_map handling
into a generic case that supports all (sane) partition maps.
Stop using grub_cpu_to_le32() on dos_part / bsd_part since it actually
breaks big-endian.
* util/grub-probe.c: Call grub_apple_partition_map_init() before probe()
and grub_apple_partition_map_fini() after that.
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