ipq806x: remove support for kernel 4.14

[openwrt/openwrt.git] / target / linux / ipq806x / patches-4.14 / 0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch

diff --git a/target/linux/ipq806x/patches-4.14/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch b/target/linux/ipq806x/patches-4.14/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch
deleted file mode 100644 (file)
index fe98980..0000000
--- a/target/linux/ipq806x/patches-4.14/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch
+++ /dev/null
@@ -1,72 +0,0 @@
-From c7c6a0f50f9ac3620c611ce06ba1f9fafea0444e Mon Sep 17 00:00:00 2001
-From: Archit Taneja <architt@codeaurora.org>
-Date: Mon, 3 Aug 2015 10:38:14 +0530
-Subject: [PATCH 47/69] mtd: nand: Create a BBT flag to access bad block
- markers in raw mode
-
-Some controllers can access the factory bad block marker from OOB only
-when they read it in raw mode. When ECC is enabled, these controllers
-discard reading/writing bad block markers, preventing access to them
-altogether.
-
-The bbt driver assumes MTD_OPS_PLACE_OOB when scanning for bad blocks.
-This results in the nand driver's ecc->read_oob() op to be called, which
-works with ECC enabled.
-
-Create a new BBT option flag that tells nand_bbt to force the mode to
-MTD_OPS_RAW. This would result in the correct op being called for the
-underlying nand controller driver.
-
-Reviewed-by: Andy Gross <agross@codeaurora.org>
-Signed-off-by: Archit Taneja <architt@codeaurora.org>
----
- drivers/mtd/nand/nand_base.c | 6 +++++-
- drivers/mtd/nand/nand_bbt.c  | 6 +++++-
- include/linux/mtd/bbm.h      | 6 ++++++
- 3 files changed, 16 insertions(+), 2 deletions(-)
-
---- a/drivers/mtd/nand/nand_base.c
-+++ b/drivers/mtd/nand/nand_base.c
-@@ -481,7 +481,11 @@ static int nand_default_block_markbad(st
-       } else {
-               ops.len = ops.ooblen = 1;
-       }
--      ops.mode = MTD_OPS_PLACE_OOB;
-+
-+      if (unlikely(chip->bbt_options & NAND_BBT_ACCESS_BBM_RAW))
-+              ops.mode = MTD_OPS_RAW;
-+      else
-+              ops.mode = MTD_OPS_PLACE_OOB;
- 
-       /* Write to first/last page(s) if necessary */
-       if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
---- a/drivers/mtd/nand/nand_bbt.c
-+++ b/drivers/mtd/nand/nand_bbt.c
-@@ -420,7 +420,11 @@ static int scan_block_fast(struct mtd_in
-       ops.oobbuf = buf;
-       ops.ooboffs = 0;
-       ops.datbuf = NULL;
--      ops.mode = MTD_OPS_PLACE_OOB;
-+
-+      if (unlikely(bd->options & NAND_BBT_ACCESS_BBM_RAW))
-+              ops.mode = MTD_OPS_RAW;
-+      else
-+              ops.mode = MTD_OPS_PLACE_OOB;
- 
-       for (j = 0; j < numpages; j++) {
-               /*
---- a/include/linux/mtd/bbm.h
-+++ b/include/linux/mtd/bbm.h
-@@ -116,6 +116,12 @@ struct nand_bbt_descr {
- #define NAND_BBT_NO_OOB_BBM   0x00080000
- 
- /*
-+ * Force MTD_OPS_RAW mode when trying to access bad block markes from OOB. To
-+ * be used by controllers which can access BBM only when ECC is disabled, i.e,
-+ * when in RAW access mode
-+ */
-+#define NAND_BBT_ACCESS_BBM_RAW        0x00100000
-+/*
-  * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
-  * was allocated dynamicaly and must be freed in nand_release(). Has no meaning
-  * in nand_chip.bbt_options.