[OpenWrt-Devel] [PATCH v2 2/8] kernel: Allow ubi autoattach to run on NOR flash

[Maxime Ripard]

Some devices out there only have a NOR flash to store the rootfs on.

While using UBI is arguable on this kind of NAND, this is something that should
be supported.

Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
---
 .../490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch   | 5 +++--
 .../490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch   | 5 +++--
 .../490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch   | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/target/linux/generic/patches-3.10/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-3.10/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
index 002a79ab73d1..27ed474127b3 100644
--- a/target/linux/generic/patches-3.10/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
+++ b/target/linux/generic/patches-3.10/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
@@ -11,7 +11,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 
 --- a/drivers/mtd/ubi/build.c
 +++ b/drivers/mtd/ubi/build.c
-@@ -1207,6 +1207,48 @@ static struct mtd_info * __init open_mtd
+@@ -1207,6 +1207,49 @@ static struct mtd_info * __init open_mtd
  	return mtd;
  }
  
@@ -43,6 +43,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 +
 +		/* 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);
@@ -60,7 +61,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
  static int __init ubi_init(void)
  {
  	int err, i, k;
-@@ -1290,6 +1332,12 @@ static int __init ubi_init(void)
+@@ -1290,6 +1333,12 @@ static int __init ubi_init(void)
  		}
  	}
  
diff --git a/target/linux/generic/patches-3.14/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-3.14/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
index 67600ae97218..d7b20b81f5f2 100644
--- a/target/linux/generic/patches-3.14/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
+++ b/target/linux/generic/patches-3.14/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
@@ -11,7 +11,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 
 --- a/drivers/mtd/ubi/build.c
 +++ b/drivers/mtd/ubi/build.c
-@@ -1209,6 +1209,48 @@ static struct mtd_info * __init open_mtd
+@@ -1209,6 +1209,49 @@ static struct mtd_info * __init open_mtd
  	return mtd;
  }
  
@@ -43,6 +43,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 +
 +		/* 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);
@@ -60,7 +61,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
  static int __init ubi_init(void)
  {
  	int err, i, k;
-@@ -1298,6 +1340,12 @@ static int __init ubi_init(void)
+@@ -1298,6 +1341,12 @@ static int __init ubi_init(void)
  		}
  	}
  
diff --git a/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch b/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
index 67600ae97218..d7b20b81f5f2 100644
--- a/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
+++ b/target/linux/generic/patches-3.18/490-ubi-auto-attach-mtd-device-named-ubi-or-data-on-boot.patch
@@ -11,7 +11,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 
 --- a/drivers/mtd/ubi/build.c
 +++ b/drivers/mtd/ubi/build.c
-@@ -1209,6 +1209,48 @@ static struct mtd_info * __init open_mtd
+@@ -1209,6 +1209,49 @@ static struct mtd_info * __init open_mtd
  	return mtd;
  }
  
@@ -43,6 +43,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
 +
 +		/* 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);
@@ -60,7 +61,7 @@ Signed-off-by: Daniel Golle <daniel at makrotopia.org>
  static int __init ubi_init(void)
  {
  	int err, i, k;
-@@ -1298,6 +1340,12 @@ static int __init ubi_init(void)
+@@ -1298,6 +1341,12 @@ static int __init ubi_init(void)
  		}
  	}
  
-- 
2.2.2
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