mtd: nand: raw: rockchip_nfc: add NAND_SKIP_BBTSCAN option
On Rockchip SoCs the first boot stages are written on NAND
with help of manufacturer software that uses a different format
then the MTD framework. Skip the automatic BBT scan with the
NAND_SKIP_BBTSCAN option to be able to pass the driver probe
function and to let the original data unchanged.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index d624589..72547f0 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -611,6 +611,15 @@
NFC v800: RK3308, RV1108
NFC v900: PX30, RK3326
+config ROCKCHIP_NAND_SKIP_BBTSCAN
+ bool "Skip the automatic BBT scan with Rockchip NAND controllers"
+ depends on ROCKCHIP_NAND
+ default n
+ help
+ Skip the automatic BBT scan with the NAND_SKIP_BBTSCAN
+ option when data content is not in MTD format or
+ must remain unchanged.
+
config TEGRA_NAND
bool "Support for NAND controller on Tegra SoCs"
depends on ARCH_TEGRA
diff --git a/drivers/mtd/nand/raw/rockchip_nfc.c b/drivers/mtd/nand/raw/rockchip_nfc.c
index 274489e..088cc7f 100644
--- a/drivers/mtd/nand/raw/rockchip_nfc.c
+++ b/drivers/mtd/nand/raw/rockchip_nfc.c
@@ -955,6 +955,9 @@
chip->bbt_options = NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
chip->options |= NAND_NO_SUBPAGE_WRITE | NAND_USE_BOUNCE_BUFFER;
+ if (IS_ENABLED(CONFIG_ROCKCHIP_NAND_SKIP_BBTSCAN))
+ chip->options |= NAND_SKIP_BBTSCAN;
+
rk_nfc_hw_init(nfc);
ret = nand_scan_ident(mtd, nsels, NULL);
if (ret)