[U-Boot] [RFC PATCH] cmd: gpt: add - partition size parsing
Michael Trimarchi
michael at amarulasolutions.com
Wed Jun 8 10:18:16 CEST 2016
This patch try to parse name=userdata,size=-,uuid=${uuid_gpt_userdata};
gpt mmc write 0 $partitions
gpt mmc verify 0 $partitions
Signed-off-by: Michael Trimarchi <michael at amarulasolutions.com>
---
cmd/gpt.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/cmd/gpt.c b/cmd/gpt.c
index 8ffaef3..3d9706b 100644
--- a/cmd/gpt.c
+++ b/cmd/gpt.c
@@ -181,6 +181,7 @@ static int set_gpt_info(struct blk_desc *dev_desc,
disk_partition_t *parts;
int errno = 0;
uint64_t size_ll, start_ll;
+ lbaint_t offset = 0;
debug("%s: lba num: 0x%x %d\n", __func__,
(unsigned int)dev_desc->lba, (unsigned int)dev_desc->lba);
@@ -296,8 +297,14 @@ static int set_gpt_info(struct blk_desc *dev_desc,
}
if (extract_env(val, &p))
p = val;
- size_ll = ustrtoull(p, &p, 0);
- parts[i].size = lldiv(size_ll, dev_desc->blksz);
+ if ((strcmp(p, "-") == 0)) {
+ /* remove first usable lba and last block */
+ parts[i].size = dev_desc->lba - 34 - 1 - offset;
+ } else {
+ size_ll = ustrtoull(p, &p, 0);
+ parts[i].size = lldiv(size_ll, dev_desc->blksz);
+ }
+
free(val);
/* start address */
@@ -310,6 +317,8 @@ static int set_gpt_info(struct blk_desc *dev_desc,
free(val);
}
+ offset += parts[i].size + parts[i].start;
+
/* bootable */
if (found_key(tok, "bootable"))
parts[i].bootable = 1;
--
2.8.3
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