| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> |
| 2 | Subject: mtd: bcm47xxpart: detect T_Meter partition |
| 3 | |
| 4 | It can be found on many Netgear devices. It consists of many 0x30 blocks |
| 5 | starting with 4D 54. |
| 6 | |
| 7 | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> |
| 8 | --- |
| 9 | drivers/mtd/bcm47xxpart.c | 10 ++++++++++ |
| 10 | 1 file changed, 10 insertions(+) |
| 11 | |
| 12 | --- a/drivers/mtd/parsers/bcm47xxpart.c |
| 13 | +++ b/drivers/mtd/parsers/bcm47xxpart.c |
| 14 | @@ -35,6 +35,7 @@ |
| 15 | #define NVRAM_HEADER 0x48534C46 /* FLSH */ |
| 16 | #define POT_MAGIC1 0x54544f50 /* POTT */ |
| 17 | #define POT_MAGIC2 0x504f /* OP */ |
| 18 | +#define T_METER_MAGIC 0x4D540000 /* MT */ |
| 19 | #define ML_MAGIC1 0x39685a42 |
| 20 | #define ML_MAGIC2 0x26594131 |
| 21 | #define TRX_MAGIC 0x30524448 |
| 22 | @@ -178,6 +179,15 @@ static int bcm47xxpart_parse(struct mtd_ |
| 23 | MTD_WRITEABLE); |
| 24 | continue; |
| 25 | } |
| 26 | + |
| 27 | + /* T_Meter */ |
| 28 | + if ((le32_to_cpu(buf[0x000 / 4]) & 0xFFFF0000) == T_METER_MAGIC && |
| 29 | + (le32_to_cpu(buf[0x030 / 4]) & 0xFFFF0000) == T_METER_MAGIC && |
| 30 | + (le32_to_cpu(buf[0x060 / 4]) & 0xFFFF0000) == T_METER_MAGIC) { |
| 31 | + bcm47xxpart_add_part(&parts[curr_part++], "T_Meter", offset, |
| 32 | + MTD_WRITEABLE); |
| 33 | + continue; |
| 34 | + } |
| 35 | |
| 36 | /* TRX */ |
| 37 | if (buf[0x000 / 4] == TRX_MAGIC) { |