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b5b5f5dfa6
This is a new & warm feature that allows nesting partiitons in DT and
mixing their types (e.g. static vs. dynamic). It's very useful for
boards that have most partitions static but some of them require extra
parsing (e.g. a "firmware" partition).
It's required to successfully backport support for new devices using
that new syntax in their DT files.
Since brcm63xx has a custom alternative patch the upstream one is being
reverted for it. The plan is to make brcm63xx use the upstream
implementation.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 2a598bbaa3)
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Subject: mtd: bcm47xxpart: detect T_Meter partition
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It can be found on many Netgear devices. It consists of many 0x30 blocks
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starting with 4D 54.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/mtd/bcm47xxpart.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/drivers/mtd/bcm47xxpart.c
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+++ b/drivers/mtd/bcm47xxpart.c
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@@ -40,6 +40,7 @@
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#define NVRAM_HEADER 0x48534C46 /* FLSH */
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#define POT_MAGIC1 0x54544f50 /* POTT */
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#define POT_MAGIC2 0x504f /* OP */
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+#define T_METER_MAGIC 0x4D540000 /* MT */
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#define ML_MAGIC1 0x39685a42
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#define ML_MAGIC2 0x26594131
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#define TRX_MAGIC 0x30524448
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@@ -183,6 +184,15 @@ static int bcm47xxpart_parse(struct mtd_
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MTD_WRITEABLE);
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continue;
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}
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+
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+ /* T_Meter */
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+ if ((le32_to_cpu(buf[0x000 / 4]) & 0xFFFF0000) == T_METER_MAGIC &&
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+ (le32_to_cpu(buf[0x030 / 4]) & 0xFFFF0000) == T_METER_MAGIC &&
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+ (le32_to_cpu(buf[0x060 / 4]) & 0xFFFF0000) == T_METER_MAGIC) {
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+ bcm47xxpart_add_part(&parts[curr_part++], "T_Meter", offset,
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+ MTD_WRITEABLE);
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+ continue;
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+ }
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/* TRX */
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if (buf[0x000 / 4] == TRX_MAGIC) {
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