3f702259805b7eaa4ceb3d570c934eb15c55e37e
[openwrt.git] / target / linux / generic / patches-3.14 / 432-mtd-bcm47xxpart-detect-T_Meter-partition.patch
1 From fd54aa583296f9adfb1f519affbc10ba521eb809 Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
3 Date: Wed, 28 Jan 2015 22:14:41 +0100
4 Subject: [PATCH] mtd: bcm47xxpart: detect T_Meter partition
5 MIME-Version: 1.0
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
8
9 It can be found on many Netgear devices. It consists of many 0x30 blocks
10 starting with 4D 54.
11
12 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
13 ---
14  drivers/mtd/bcm47xxpart.c | 10 ++++++++++
15  1 file changed, 10 insertions(+)
16
17 diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
18 index f14ec0f..40dd0db 100644
19 --- a/drivers/mtd/bcm47xxpart.c
20 +++ b/drivers/mtd/bcm47xxpart.c
21 @@ -39,6 +39,7 @@
22  #define NVRAM_HEADER                   0x48534C46      /* FLSH */
23  #define POT_MAGIC1                     0x54544f50      /* POTT */
24  #define POT_MAGIC2                     0x504f          /* OP */
25 +#define T_METER_MAGIC                  0x4D540000      /* MT */
26  #define ML_MAGIC1                      0x39685a42
27  #define ML_MAGIC2                      0x26594131
28  #define TRX_MAGIC                      0x30524448
29 @@ -177,6 +178,15 @@ static int bcm47xxpart_parse(struct mtd_info *master,
30                         continue;
31                 }
32  
33 +               /* T_Meter */
34 +               if ((le32_to_cpu(buf[0x000 / 4]) & 0xFFFF0000) == T_METER_MAGIC &&
35 +                   (le32_to_cpu(buf[0x030 / 4]) & 0xFFFF0000) == T_METER_MAGIC &&
36 +                   (le32_to_cpu(buf[0x060 / 4]) & 0xFFFF0000) == T_METER_MAGIC) {
37 +                       bcm47xxpart_add_part(&parts[curr_part++], "T_Meter", offset,
38 +                                            MTD_WRITEABLE);
39 +                       continue;
40 +               }
41 +
42                 /* TRX */
43                 if (buf[0x000 / 4] == TRX_MAGIC) {
44                         if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
45 -- 
46 1.8.4.5
47