From 1cefca71d237aae2c5cc2445f7698941443a2cd9 Mon Sep 17 00:00:00 2001 From: Martin Lund <malu@gomspace.com> Date: Tue, 30 Oct 2018 14:16:19 +0100 Subject: [PATCH] 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> --- drivers/mtd/nand/raw/arasan_nfc.c | 4 ++++ 1 file changed, 4 insertions(+) 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; -- 2.39.5