On Monday, 11 June 2018 23:52:22 MSK Stefan Agner wrote: > Add support for the NAND flash controller found on NVIDIA > Tegra 2 SoCs. This implementation does not make use of the > command queue feature. Regular operations/data transfers are > done in PIO mode. Page read/writes with hardware ECC make > use of the DMA for data transfer. > > Signed-off-by: Lucas Stach <d...@lynxeye.de> > Signed-off-by: Stefan Agner <ste...@agner.ch> > --- > MAINTAINERS | 7 + > drivers/mtd/nand/raw/Kconfig | 6 + > drivers/mtd/nand/raw/Makefile | 1 + > drivers/mtd/nand/raw/tegra_nand.c | 1248 +++++++++++++++++++++++++++++ > 4 files changed, 1262 insertions(+) > create mode 100644 drivers/mtd/nand/raw/tegra_nand.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index 58b9861ccf99..c2e5571c85d4 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -13844,6 +13844,13 @@ M: Laxman Dewangan <ldewan...@nvidia.com> > S: Supported > F: drivers/input/keyboard/tegra-kbc.c > > +TEGRA NAND DRIVER > +M: Stefan Agner <ste...@agner.ch> > +M: Lucas Stach <d...@lynxeye.de> > +S: Maintained > +F: Documentation/devicetree/bindings/mtd/nvidia-tegra20-nand.txt > +F: drivers/mtd/nand/raw/tegra_nand.c > + > TEGRA PWM DRIVER > M: Thierry Reding <thierry.red...@gmail.com> > S: Supported > diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig > index 19a2b283fbbe..e9093f52371e 100644 > --- a/drivers/mtd/nand/raw/Kconfig > +++ b/drivers/mtd/nand/raw/Kconfig > @@ -534,4 +534,10 @@ config MTD_NAND_MTK > Enables support for NAND controller on MTK SoCs. > This controller is found on mt27xx, mt81xx, mt65xx SoCs. > > +config MTD_NAND_TEGRA > + tristate "Support for NAND controller on NVIDIA Tegra" > + depends on ARCH_TEGRA || COMPILE_TEST > + help > + Enables support for NAND flash controller on NVIDIA Tegra SoC. > + > endif # MTD_NAND > diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile > index 165b7ef9e9a1..d5a5f9832b88 100644 > --- a/drivers/mtd/nand/raw/Makefile > +++ b/drivers/mtd/nand/raw/Makefile > @@ -56,6 +56,7 @@ obj-$(CONFIG_MTD_NAND_HISI504) += hisi504_nand.o > obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmnand/ > obj-$(CONFIG_MTD_NAND_QCOM) += qcom_nandc.o > obj-$(CONFIG_MTD_NAND_MTK) += mtk_ecc.o mtk_nand.o > +obj-$(CONFIG_MTD_NAND_TEGRA) += tegra_nand.o > > nand-objs := nand_base.o nand_bbt.o nand_timings.o nand_ids.o > nand-objs += nand_amd.o > diff --git a/drivers/mtd/nand/raw/tegra_nand.c > b/drivers/mtd/nand/raw/tegra_nand.c new file mode 100644 > index 000000000000..dd23a5eb6af3 > --- /dev/null > +++ b/drivers/mtd/nand/raw/tegra_nand.c > @@ -0,0 +1,1248 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2018 Stefan Agner <ste...@agner.ch> > + * Copyright (C) 2014-2015 Lucas Stach <d...@lynxeye.de> > + * Copyright (C) 2012 Avionic Design GmbH > + */ > + > +#include <linux/clk.h> > +#include <linux/completion.h> > +#include <linux/delay.h>
The "delay.h" looks obsolete now, maybe you could drop it.
