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@@ -0,0 +1,43 @@
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+From 4586bc54a322568d5258d6a1b04e361d4a95597b Mon Sep 17 00:00:00 2001
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+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
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+Date: Wed, 12 Nov 2014 09:06:22 +0100
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+Subject: [PATCH][RFC] mtd: bcm47xxpart: lower minimal blocksize to 4Ki (from
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+ 64Ki)
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+MIME-Version: 1.0
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+Content-Type: text/plain; charset=UTF-8
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+Content-Transfer-Encoding: 8bit
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+
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+Some devices like Netgear WNR1000v3 or WGR614v10 have partitions aligned
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+to 0x1000. Using bigger blocksize stopped us from detecting some parts.
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+
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+Signed-off-by: Rafał Miłecki <[email protected]>
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+---
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+Most of supported devices use flashes with erasesize 0x10000 (64Ki), so
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+this change shouldn't affect them (no regressions expected).
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+Any objections?
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+---
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+ drivers/mtd/bcm47xxpart.c | 8 ++++++--
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+ 1 file changed, 6 insertions(+), 2 deletions(-)
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+
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+diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
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+index dfd57a0..948f535 100644
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+--- a/drivers/mtd/bcm47xxpart.c
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++++ b/drivers/mtd/bcm47xxpart.c
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+@@ -95,8 +95,12 @@ static int bcm47xxpart_parse(struct mtd_info *master,
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+ int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
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+ bool found_nvram = false;
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+
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+- if (blocksize <= 0x10000)
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+- blocksize = 0x10000;
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++ /*
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++ * Some really old flashes (like AT45DB*) had smaller erasesize-s, but
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++ * partitions were aligned to at least 0x1000 anyway.
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++ */
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++ if (blocksize < 0x1000)
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++ blocksize = 0x1000;
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+
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+ /* Alloc */
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+ parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS,
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+--
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+1.8.4.5
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+
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Rafał Miłecki