diff options
Diffstat (limited to 'target/linux/generic/patches-3.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch')
-rw-r--r-- | target/linux/generic/patches-3.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/target/linux/generic/patches-3.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-3.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch deleted file mode 100644 index bb28538..0000000 --- a/target/linux/generic/patches-3.19/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch +++ /dev/null @@ -1,76 +0,0 @@ -From 8a52e4100d7c3a4a1dfddfa02b8864a9b0068c13 Mon Sep 17 00:00:00 2001 -From: Daniel Golle <daniel@makrotopia.org> -Date: Sat, 17 May 2014 03:36:18 +0200 -Subject: [PATCH 1/5] ubi: auto-attach mtd device named "ubi" or "data" on boot -To: openwrt-devel@lists.openwrt.org - -Signed-off-by: Daniel Golle <daniel@makrotopia.org> ---- - drivers/mtd/ubi/build.c | 36 ++++++++++++++++++++++++++++++++++++ - 1 file changed, 36 insertions(+) - ---- a/drivers/mtd/ubi/build.c -+++ b/drivers/mtd/ubi/build.c -@@ -1213,6 +1213,49 @@ static struct mtd_info * __init open_mtd - return mtd; - } - -+/* -+ * This function tries attaching mtd partitions named either "ubi" or "data" -+ * during boot. -+ */ -+static void __init ubi_auto_attach(void) -+{ -+ int err; -+ struct mtd_info *mtd; -+ -+ /* try attaching mtd device named "ubi" or "data" */ -+ mtd = open_mtd_device("ubi"); -+ if (IS_ERR(mtd)) -+ mtd = open_mtd_device("data"); -+ -+ if (!IS_ERR(mtd)) { -+ size_t len; -+ char magic[4]; -+ -+ /* check for a valid ubi magic */ -+ err = mtd_read(mtd, 0, 4, &len, (void *) magic); -+ if (!err && len == 4 && strncmp(magic, "UBI#", 4)) { -+ pr_err("UBI error: no valid UBI magic found inside mtd%d", mtd->index); -+ put_mtd_device(mtd); -+ return; -+ } -+ -+ /* auto-add only media types where UBI makes sense */ -+ if (mtd->type == MTD_NANDFLASH || -+ mtd->type == MTD_NORFLASH || -+ mtd->type == MTD_DATAFLASH || -+ mtd->type == MTD_MLCNANDFLASH) { -+ mutex_lock(&ubi_devices_mutex); -+ pr_notice("UBI: auto-attach mtd%d", mtd->index); -+ err = ubi_attach_mtd_dev(mtd, UBI_DEV_NUM_AUTO, 0, 0); -+ mutex_unlock(&ubi_devices_mutex); -+ if (err < 0) { -+ pr_err("UBI error: cannot attach mtd%d", mtd->index); -+ put_mtd_device(mtd); -+ } -+ } -+ } -+} -+ - static int __init ubi_init(void) - { - int err, i, k; -@@ -1305,6 +1348,12 @@ static int __init ubi_init(void) - } - } - -+ /* auto-attach mtd devices only if built-in to the kernel and no ubi.mtd -+ * parameter was given */ -+ if (config_enabled(CONFIG_MTD_ROOTFS_ROOT_DEV) && -+ !ubi_is_module() && !mtd_devs) -+ ubi_auto_attach(); -+ - err = ubiblock_init(); - if (err) { - pr_err("UBI error: block: cannot initialize, error %d", err); |