From: Stefan Agner stefan.agner@toradex.com
Create separate header file so we can use a separate compile unit for device tree support.
Signed-off-by: Stefan Agner stefan.agner@toradex.com ---
drivers/mtd/nand/mxs_nand.c | 61 ++----------------------------- drivers/mtd/nand/mxs_nand.h | 72 +++++++++++++++++++++++++++++++++++++ 2 files changed, 75 insertions(+), 58 deletions(-) create mode 100644 drivers/mtd/nand/mxs_nand.h
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 978f6a6893..5fbbb0a706 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -14,11 +14,10 @@ */
#include <common.h> -#include <linux/mtd/mtd.h> +#include <dm.h> #include <linux/mtd/rawnand.h> #include <linux/types.h> #include <malloc.h> -#include <nand.h> #include <linux/errno.h> #include <asm/io.h> #include <asm/arch/clock.h> @@ -26,7 +25,8 @@ #include <asm/mach-imx/regs-bch.h> #include <asm/mach-imx/regs-gpmi.h> #include <asm/arch/sys_proto.h> -#include <asm/mach-imx/dma.h> + +#include "mxs_nand.h"
#define MXS_NAND_DMA_DESCRIPTOR_COUNT 4
@@ -46,61 +46,6 @@
#define MXS_NAND_BCH_TIMEOUT 10000
-/** - * @gf_len: The length of Galois Field. (e.g., 13 or 14) - * @ecc_strength: A number that describes the strength of the ECC - * algorithm. - * @ecc_chunk_size: The size, in bytes, of a single ECC chunk. Note - * the first chunk in the page includes both data and - * metadata, so it's a bit larger than this value. - * @ecc_chunk_count: The number of ECC chunks in the page, - * @block_mark_byte_offset: The byte offset in the ECC-based page view at - * which the underlying physical block mark appears. - * @block_mark_bit_offset: The bit offset into the ECC-based page view at - * which the underlying physical block mark appears. - */ -struct bch_geometry { - unsigned int gf_len; - unsigned int ecc_strength; - unsigned int ecc_chunk_size; - unsigned int ecc_chunk_count; - unsigned int block_mark_byte_offset; - unsigned int block_mark_bit_offset; -}; - -struct mxs_nand_info { - struct nand_chip chip; - unsigned int max_ecc_strength_supported; - bool use_minimum_ecc; - int cur_chip; - - uint32_t cmd_queue_len; - uint32_t data_buf_size; - struct bch_geometry bch_geometry; - - uint8_t *cmd_buf; - uint8_t *data_buf; - uint8_t *oob_buf; - - uint8_t marking_block_bad; - uint8_t raw_oob_mode; - - struct mxs_gpmi_regs *gpmi_regs; - struct mxs_bch_regs *bch_regs; - - /* Functions with altered behaviour */ - int (*hooked_read_oob)(struct mtd_info *mtd, - loff_t from, struct mtd_oob_ops *ops); - int (*hooked_write_oob)(struct mtd_info *mtd, - loff_t to, struct mtd_oob_ops *ops); - int (*hooked_block_markbad)(struct mtd_info *mtd, - loff_t ofs); - - /* DMA descriptors */ - struct mxs_dma_desc **desc; - uint32_t desc_index; -}; - struct nand_ecclayout fake_ecc_layout;
/* diff --git a/drivers/mtd/nand/mxs_nand.h b/drivers/mtd/nand/mxs_nand.h new file mode 100644 index 0000000000..ae3432357e --- /dev/null +++ b/drivers/mtd/nand/mxs_nand.h @@ -0,0 +1,72 @@ +/* + * NXP GPMI NAND flash driver + * + * Copyright (C) 2018 Toradex + * Authors: + * Stefan Agner stefan.agner@toradex.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/mtd/mtd.h> +#include <asm/cache.h> +#include <nand.h> +#include <asm/mach-imx/dma.h> + +/** + * @gf_len: The length of Galois Field. (e.g., 13 or 14) + * @ecc_strength: A number that describes the strength of the ECC + * algorithm. + * @ecc_chunk_size: The size, in bytes, of a single ECC chunk. Note + * the first chunk in the page includes both data and + * metadata, so it's a bit larger than this value. + * @ecc_chunk_count: The number of ECC chunks in the page, + * @block_mark_byte_offset: The byte offset in the ECC-based page view at + * which the underlying physical block mark appears. + * @block_mark_bit_offset: The bit offset into the ECC-based page view at + * which the underlying physical block mark appears. + */ +struct bch_geometry { + unsigned int gf_len; + unsigned int ecc_strength; + unsigned int ecc_chunk_size; + unsigned int ecc_chunk_count; + unsigned int block_mark_byte_offset; + unsigned int block_mark_bit_offset; +}; + +struct mxs_nand_info { + struct nand_chip chip; + struct udevice *dev; + unsigned int max_ecc_strength_supported; + bool use_minimum_ecc; + int cur_chip; + + uint32_t cmd_queue_len; + uint32_t data_buf_size; + struct bch_geometry bch_geometry; + + uint8_t *cmd_buf; + uint8_t *data_buf; + uint8_t *oob_buf; + + uint8_t marking_block_bad; + uint8_t raw_oob_mode; + + struct mxs_gpmi_regs *gpmi_regs; + struct mxs_bch_regs *bch_regs; + + /* Functions with altered behaviour */ + int (*hooked_read_oob)(struct mtd_info *mtd, + loff_t from, struct mtd_oob_ops *ops); + int (*hooked_write_oob)(struct mtd_info *mtd, + loff_t to, struct mtd_oob_ops *ops); + int (*hooked_block_markbad)(struct mtd_info *mtd, + loff_t ofs); + + /* DMA descriptors */ + struct mxs_dma_desc **desc; + uint32_t desc_index; +}; + +int mxs_nand_init(struct mxs_nand_info *nand_info);