On Wed, 2015-04-29 at 17:02 +0200, Daniel Kochmański wrote:
Adds minimal DMA NAND driver for booting from NAND internal memory. New config option SPL_NAND_SUPPORT is created for sunxi board, which enables introduced driver and sets ENV_IS_NOWHERE (instead of ENV_IS_IN_MMC).
NAND driver utilizes DMA interface to flash controller, which supports randomization. Reading from both syndrome and non-syndrom partitions is supported. Writing to flash isn't implemented for time being.
Signed-off-by: Daniel Kochmański dkochmanski@turtle-solutions.eu Cc: Ian Campbell ijc@hellion.org.uk Cc: Hans De Goede hdegoede@redhat.com
arch/arm/cpu/armv7/sunxi/board.c | 12 ++- board/sunxi/Kconfig | 12 +++ board/sunxi/Makefile | 1 + board/sunxi/nand.c | 219 +++++++++++++++++++++++++++++++++++++++ common/spl/spl_nand.c | 13 +-- include/configs/sunxi-common.h | 9 ++ 6 files changed, 258 insertions(+), 8 deletions(-) create mode 100644 board/sunxi/nand.c
NAND drivers go in drivers/mtd/nand (with "spl" in the name since it's an SPL driver).
-Scott