e585841044
This backports some patches from linux upstream. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 39249
51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
From 020c6bcfbeabee72c18d862769d72cf9241b9004 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
|
Date: Mon, 21 Oct 2013 22:34:37 +0200
|
|
Subject: [PATCH] mtd: bcm47xxpart: detect block aligned Squashfs partition
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Most of the bcm47xx devices use TRX format for storing kernel and some
|
|
partition like Squashfs or JFFS2. This is pretty flexible solution, CFE
|
|
(the bootloader) just writes (and later boots) TRX at some hardcoded
|
|
place and paritions can vary in the size.
|
|
|
|
However some devices don't use TRX format. Very recently we have
|
|
discovered ZTE H218N that has kernel and rootfs partitions at some
|
|
"random" places.
|
|
|
|
This patch allows Linux find a rootfs partition after installing custom
|
|
image with a CFE bootloader.
|
|
|
|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
|
|
---
|
|
drivers/mtd/bcm47xxpart.c | 8 ++++++++
|
|
1 file changed, 8 insertions(+)
|
|
|
|
--- a/drivers/mtd/bcm47xxpart.c
|
|
+++ b/drivers/mtd/bcm47xxpart.c
|
|
@@ -32,6 +32,7 @@
|
|
#define ML_MAGIC1 0x39685a42
|
|
#define ML_MAGIC2 0x26594131
|
|
#define TRX_MAGIC 0x30524448
|
|
+#define SQSH_MAGIC 0x71736873 /* shsq */
|
|
|
|
struct trx_header {
|
|
uint32_t magic;
|
|
@@ -174,6 +175,13 @@ static int bcm47xxpart_parse(struct mtd_
|
|
offset = rounddown(offset + trx->length, blocksize);
|
|
continue;
|
|
}
|
|
+
|
|
+ /* Squashfs on devices not using TRX */
|
|
+ if (buf[0x000 / 4] == SQSH_MAGIC) {
|
|
+ bcm47xxpart_add_part(&parts[curr_part++], "rootfs",
|
|
+ offset, 0);
|
|
+ continue;
|
|
+ }
|
|
}
|
|
|
|
/* Look for NVRAM at the end of the last block. */
|