aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
diff options
context:
space:
mode:
authorJonas Gorski <jogo@openwrt.org>2015-06-22 12:27:59 +0000
committerJonas Gorski <jogo@openwrt.org>2015-06-22 12:27:59 +0000
commita0c49ef46f7caf5eb02c635d446218201008ecff (patch)
treea94180d50839c1587dfe845e8faf16405fab78ff /target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
parent518ab154e059c9f39684f8c78159c9caf333716b (diff)
downloadupstream-a0c49ef46f7caf5eb02c635d446218201008ecff.tar.gz
upstream-a0c49ef46f7caf5eb02c635d446218201008ecff.tar.bz2
upstream-a0c49ef46f7caf5eb02c635d446218201008ecff.zip
generic: add linux 4.1 support
Boot tested: http://pastebin.com/L6aAb9xj Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> [jogo: update to 4.1 final add patches added since submission delete patches applied in later rcs restore commit messages in 220-gc-sections and 304-mips_disable_fpu fix 050-backport_netfilter_rtcache to match new API update inlined dma ops with upstream changes add missing config symbols enabled CONFIG_MULTIUSER update kmod defintions for 4.1 ] Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 46112
Diffstat (limited to 'target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch')
-rw-r--r--target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch76
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
new file mode 100644
index 0000000000..d2fb8022e4
--- /dev/null
+++ b/target/linux/generic/patches-4.1/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
@@ -0,0 +1,76 @@
+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
+@@ -1218,6 +1218,49 @@ 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;
+@@ -1310,6 +1353,12 @@ 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);