cd54b2d42b
- Refreshed all patches - Removed upstreamed - Adapted 4 patches: 473-fix-marvell-phy-initialization-issues.patch ----------------------------------------------- Removed hunk 5 which got upstreamed 403-net-phy-avoid-setting-unsupported-EEE-advertisments.patch 404-net-phy-restart-phy-autonegotiation-after-EEE-advert.patch -------------------------------------------------------------- Adapted these 2 RFC patches, merging the delta's from an upstream commit (see below) which made it before these 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux- stable.git/commit/?h=v4.9.36&id=97ace183074d306942b903a148aebd5d061758f0 180-usb-xhci-add-support-for-performing-fake-doorbell.patch ----------------------------------------------------------- - Moved fake_doorbell bitmask due to new item Compile tested on: cns3xxx, imx6 Run tested on: cns3xxx, imx6 Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
From 807c16253319ee6ccf8873ae64f070f7eb532cd5 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jo=C3=ABl=20Esponde?= <joel.esponde@honeywell.com>
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Date: Wed, 23 Nov 2016 12:47:40 +0100
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Subject: [PATCH] mtd: spi-nor: fix spansion quad enable
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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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With the S25FL127S nor flash part, each writing to the configuration
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register takes hundreds of ms. During that time, no more accesses to
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the flash should be done (even reads).
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This commit adds a wait loop after the register writing until the flash
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finishes its work.
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This issue could make rootfs mounting fail when the latter was done too
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much closely to this quad enable bit setting step. And in this case, a
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driver as UBIFS may try to recover the filesystem and may broke it
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completely.
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Signed-off-by: Joël Esponde <joel.esponde@honeywell.com>
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Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
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---
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drivers/mtd/spi-nor/spi-nor.c | 7 +++++++
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1 file changed, 7 insertions(+)
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--- a/drivers/mtd/spi-nor/spi-nor.c
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+++ b/drivers/mtd/spi-nor/spi-nor.c
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@@ -1263,6 +1263,13 @@ static int spansion_quad_enable(struct s
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return ret;
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}
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+ ret = spi_nor_wait_till_ready(nor);
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+ if (ret) {
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+ dev_err(nor->dev,
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+ "timeout while writing configuration register\n");
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+ return ret;
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+ }
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+
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/* read back and check it */
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ret = read_cr(nor);
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if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) {
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