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authorMartin Lund <malu@gomspace.com>2018-10-30 14:16:19 +0100
committerMichal Simek <michal.simek@xilinx.com>2018-11-26 10:50:54 +0100
commit1cefca71d237aae2c5cc2445f7698941443a2cd9 (patch)
treefeb16cde321046f9650e77ef83e6b3c44fdc4ed5 /drivers/mtd/nand
parentc25e804dd852bc316b6c4dee53c9b2211d247468 (diff)
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mtd: nand: Arasan: Add subpage configuration support
Add support for disabling subpage write support via CONFIG_SYS_NAND_NO_SUBPAGE_WRITE. Currently the Linux Arasan driver does not support subpage writes and in case of running UBI and accessing the same UBI volume from both U-Boot and Linux it is required to have the same subpage write configuration else the location of the UBI headers (EC + VID) will be misaligned (subpage vs page) and incompatible. Hence the need for disabling subpage write support in the U-Boot Arasan NAND driver. Signed-off-by: Martin Lund <malu@gomspace.com> Acked-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/raw/arasan_nfc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/arasan_nfc.c b/drivers/mtd/nand/raw/arasan_nfc.c
index 41db9f8bb9..dc531ccb68 100644
--- a/drivers/mtd/nand/raw/arasan_nfc.c
+++ b/drivers/mtd/nand/raw/arasan_nfc.c
@@ -1201,6 +1201,10 @@ static int arasan_nand_init(struct nand_chip *nand_chip, int devnum)
mtd = nand_to_mtd(nand_chip);
nand_set_controller_data(nand_chip, nand);
+#ifdef CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
+ nand_chip->options |= NAND_NO_SUBPAGE_WRITE;
+#endif
+
/* Set the driver entry points for MTD */
nand_chip->cmdfunc = arasan_nand_cmd_function;
nand_chip->select_chip = arasan_nand_select_chip;