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From: Mike Looijmans <mike.looijmans@topic.nl>
To: u-boot@lists.denx.de
Cc: Mike Looijmans <mike.looijmans@topic.nl>,
	Alexey Romanov <avromanov@salutedevices.com>,
	Michael Trimarchi <michael@amarulasolutions.com>,
	Tom Rini <trini@konsulko.com>,
	William Zhang <william.zhang@broadcom.com>
Subject: [PATCH] mtdpart: Support MTDPART_SIZ_FULL in fixed-partitions
Date: Tue, 25 Mar 2025 16:52:39 +0100	[thread overview]
Message-ID: <20250325155310.456037-1-mike.looijmans@topic.nl> (raw)
In-Reply-To: 1b153bce-a66a-45ee-a5c6-963ea6fb1c82.949ef384-8293-46b8-903f-40a477c056ae.afd73f79-c1a2-48a0-ba01-91ddb6fb997d@emailsignatures365.codetwo.com

Flash partitions may specify MTDPART_SIZ_FULL (=0) as the size of the
partition to indicate "the remainder of the flash". Make this work with
device-tree "fixed-partitions" as well.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---

 drivers/mtd/mtdpart.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 88094b81e7a..5284890bd88 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -910,11 +910,13 @@ int add_mtd_partitions_of(struct mtd_info *master)
 			continue;
 
 		offset = ofnode_get_addr_size_index_notrans(child, 0, &size);
-		if (offset == FDT_ADDR_T_NONE || !size) {
-			debug("Missing partition offset/size on \"%s\" partition\n",
+		if (offset == FDT_ADDR_T_NONE) {
+			debug("Missing partition offset on \"%s\" partition\n",
 			      master->name);
 			continue;
 		}
+		if (size == MTDPART_SIZ_FULL)
+			size = master->size - offset;
 
 		part.name = ofnode_read_string(child, "label");
 		if (!part.name)
-- 
2.43.0


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
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The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@topic.nl
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       reply	other threads:[~2025-03-25 15:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1b153bce-a66a-45ee-a5c6-963ea6fb1c82.949ef384-8293-46b8-903f-40a477c056ae.afd73f79-c1a2-48a0-ba01-91ddb6fb997d@emailsignatures365.codetwo.com>
2025-03-25 15:52 ` Mike Looijmans [this message]
2025-04-07 13:42   ` [PATCH] mtdpart: Support MTDPART_SIZ_FULL in fixed-partitions Mike Looijmans
2025-04-07 19:47     ` Michael Nazzareno Trimarchi
2025-04-08  5:41       ` Mike Looijmans

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