diff options
author | John Crispin <john@phrozen.org> | 2016-12-25 20:11:34 +0100 |
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committer | John Crispin <john@phrozen.org> | 2017-08-05 08:46:36 +0200 |
commit | 74d00a8c3849c1340efd713eb94b786e304c201f (patch) | |
tree | de481743de61c34da96ab5f9dba3af3edcfb8260 /target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch | |
parent | de350550ef648d9728351b986b0516fa29465c45 (diff) | |
download | upstream-74d00a8c3849c1340efd713eb94b786e304c201f.tar.gz upstream-74d00a8c3849c1340efd713eb94b786e304c201f.tar.bz2 upstream-74d00a8c3849c1340efd713eb94b786e304c201f.zip |
kernel: split patches folder up into backport, pending and hack folders
* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch')
-rw-r--r-- | target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch b/target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch new file mode 100644 index 0000000000..cd0aa4660a --- /dev/null +++ b/target/linux/generic/backport-4.9/061-v4.10-0002-mtd-spi-nor-fix-spansion-quad-enable.patch @@ -0,0 +1,42 @@ +From 807c16253319ee6ccf8873ae64f070f7eb532cd5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Jo=C3=ABl=20Esponde?= <joel.esponde@honeywell.com> +Date: Wed, 23 Nov 2016 12:47:40 +0100 +Subject: [PATCH] mtd: spi-nor: fix spansion quad enable +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +With the S25FL127S nor flash part, each writing to the configuration +register takes hundreds of ms. During that time, no more accesses to +the flash should be done (even reads). + +This commit adds a wait loop after the register writing until the flash +finishes its work. + +This issue could make rootfs mounting fail when the latter was done too +much closely to this quad enable bit setting step. And in this case, a +driver as UBIFS may try to recover the filesystem and may broke it +completely. + +Signed-off-by: Joël Esponde <joel.esponde@honeywell.com> +Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> +--- + drivers/mtd/spi-nor/spi-nor.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +--- a/drivers/mtd/spi-nor/spi-nor.c ++++ b/drivers/mtd/spi-nor/spi-nor.c +@@ -1256,6 +1256,13 @@ static int spansion_quad_enable(struct s + return -EINVAL; + } + ++ ret = spi_nor_wait_till_ready(nor); ++ if (ret) { ++ dev_err(nor->dev, ++ "timeout while writing configuration register\n"); ++ return ret; ++ } ++ + /* read back and check it */ + ret = read_cr(nor); + if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) { |