[PATCH 29/31] tools: mtk_image: split the code of generating NAND header into a new file

Daniel Golle daniel at makrotopia.org
Fri Aug 5 20:26:21 CEST 2022


Hi Weijie,

please see one comment in-line below:

On Thu, Aug 04, 2022 at 11:36:50AM +0800, Weijie Gao wrote:
> The predefined NAND headers take too much spaces in the mtk_image.c.
> Moving them into a new file can significantly improve the readability of
> both mtk_image.c and the new mtk_nand_headers.c.
> 
> This is a preparation for adding more NAND headers.
> 
> Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
> ---
>  tools/Makefile           |   1 +
>  tools/mtk_image.c        | 304 ++++++---------------------------------
>  tools/mtk_image.h        |  25 ----
>  tools/mtk_nand_headers.c | 286 ++++++++++++++++++++++++++++++++++++
>  tools/mtk_nand_headers.h |  52 +++++++
>  5 files changed, 379 insertions(+), 289 deletions(-)
>  create mode 100644 tools/mtk_nand_headers.c
>  create mode 100644 tools/mtk_nand_headers.h
> 
> diff --git a/tools/Makefile b/tools/Makefile
> index 9f2339666a..4f27ed1ab1 100644
> --- a/tools/Makefile
> +++ b/tools/Makefile
> @@ -147,6 +147,7 @@ dumpimage-mkimage-objs := aisimage.o \
>  			gpimage.o \
>  			gpimage-common.o \
>  			mtk_image.o \
> +			mtk_nand_headers.o \
>  			$(ECDSA_OBJS-y) \
>  			$(RSA_OBJS-y) \
>  			$(AES_OBJS-y)
> diff --git a/tools/mtk_image.c b/tools/mtk_image.c
> index dcd6525f32..3701d1564a 100644
> --- a/tools/mtk_image.c
> +++ b/tools/mtk_image.c
> @@ -12,216 +12,7 @@
>  #include <u-boot/sha256.h>
>  #include "imagetool.h"
>  #include "mtk_image.h"
> -
> -/* NAND header for SPI-NAND with 2KB page + 64B spare */
> -static const union nand_boot_header snand_hdr_2k_64_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x03, 0x00, 0x40, 0x00,
> -		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x7B, 0xC4, 0x17, 0x9D,
> -		0xCA, 0x42, 0x90, 0xD0, 0x98, 0xD0, 0xE0, 0xF7,
> -		0xDB, 0xCD, 0x16, 0xF6, 0x03, 0x73, 0xD2, 0xB8,
> -		0x93, 0xB2, 0x56, 0x5A, 0x84, 0x6E, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for SPI-NAND with 2KB page + 120B/128B spare */
> -static const union nand_boot_header snand_hdr_2k_128_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> -		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x90, 0x28, 0xED, 0x13,
> -		0x7F, 0x12, 0x22, 0xCD, 0x3D, 0x06, 0xF1, 0xB3,
> -		0x6F, 0x2E, 0xD9, 0xA0, 0x9D, 0x7A, 0xBD, 0xD7,
> -		0xB3, 0x28, 0x3C, 0x13, 0xDB, 0x4E, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for SPI-NAND with 4KB page + 256B spare */
> -static const union nand_boot_header snand_hdr_4k_256_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x10, 0x05, 0x00, 0xE0, 0x00,
> -		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x47, 0xED, 0x0E, 0xC3,
> -		0x83, 0xBF, 0x41, 0xD2, 0x85, 0x21, 0x97, 0x57,
> -		0xC4, 0x2E, 0x6B, 0x7A, 0x40, 0xE0, 0xCF, 0x8F,
> -		0x37, 0xBD, 0x17, 0xB6, 0xC7, 0xFE, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for Parallel NAND 1Gb with 2KB page + 64B spare */
> -static const union nand_boot_header nand_hdr_1gb_2k_64_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> -		0x40, 0x00, 0x00, 0x04, 0x0B, 0x00, 0x11, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x12, 0x28, 0x1C, 0x12,
> -		0x8F, 0xFD, 0xF8, 0x32, 0x6F, 0x6D, 0xCF, 0x6C,
> -		0xDA, 0x21, 0x70, 0x8C, 0xDA, 0x0A, 0x22, 0x82,
> -		0xAA, 0x59, 0xFA, 0x7C, 0x42, 0x2D, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for Parallel NAND 2Gb with 2KB page + 64B spare */
> -static const union nand_boot_header nand_hdr_2gb_2k_64_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> -		0x40, 0x00, 0x00, 0x08, 0x0B, 0x00, 0x11, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x20, 0x9C, 0x3D, 0x2D,
> -		0x7B, 0x68, 0x63, 0x52, 0x2E, 0x04, 0x63, 0xF1,
> -		0x35, 0x4E, 0x44, 0x3E, 0xF8, 0xAC, 0x9B, 0x95,
> -		0xAB, 0xFE, 0xE4, 0xE1, 0xD5, 0xF9, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for Parallel NAND 4Gb with 2KB page + 64B spare */
> -static const union nand_boot_header nand_hdr_4gb_2k_64_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> -		0x40, 0x00, 0x00, 0x10, 0x0B, 0x00, 0x11, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0xE3, 0x0F, 0x86, 0x32,
> -		0x68, 0x05, 0xD9, 0xC8, 0x13, 0xDF, 0xC5, 0x0B,
> -		0x35, 0x3A, 0x68, 0xA5, 0x3C, 0x0C, 0x73, 0x87,
> -		0x63, 0xB0, 0xBE, 0xCC, 0x84, 0x47, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for Parallel NAND 2Gb with 2KB page + 128B spare */
> -static const union nand_boot_header nand_hdr_2gb_2k_128_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> -		0x40, 0x00, 0x00, 0x08, 0x0B, 0x00, 0x11, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x01, 0xA5, 0xE9, 0x5A,
> -		0xDF, 0x58, 0x62, 0x41, 0xD6, 0x26, 0x77, 0xBC,
> -		0x76, 0x1F, 0x27, 0x4E, 0x4F, 0x6C, 0xC3, 0xF0,
> -		0x36, 0xDE, 0xD9, 0xB3, 0xFF, 0x93, 0x00, 0x00
> -	}
> -};
> -
> -/* NAND header for Parallel NAND 4Gb with 2KB page + 128B spare */
> -static const union nand_boot_header nand_hdr_4gb_2k_128_data = {
> -	.data = {
> -		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> -		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> -		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> -		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> -		0x40, 0x00, 0x00, 0x10, 0x0B, 0x00, 0x11, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> -		0x00, 0x00, 0x00, 0x00, 0xC2, 0x36, 0x52, 0x45,
> -		0xCC, 0x35, 0xD8, 0xDB, 0xEB, 0xFD, 0xD1, 0x46,
> -		0x76, 0x6B, 0x0B, 0xD5, 0x8B, 0xCC, 0x2B, 0xE2,
> -		0xFE, 0x90, 0x83, 0x9E, 0xAE, 0x2D, 0x00, 0x00
> -	}
> -};
> -
> -static const struct nand_header_type {
> -	const char *name;
> -	const union nand_boot_header *data;
> -} nand_headers[] = {
> -	{
> -		.name = "2k+64",
> -		.data = &snand_hdr_2k_64_data
> -	}, {
> -		.name = "2k+120",
> -		.data = &snand_hdr_2k_128_data
> -	}, {
> -		.name = "2k+128",
> -		.data = &snand_hdr_2k_128_data
> -	}, {
> -		.name = "4k+256",
> -		.data = &snand_hdr_4k_256_data
> -	}, {
> -		.name = "1g:2k+64",
> -		.data = &nand_hdr_1gb_2k_64_data
> -	}, {
> -		.name = "2g:2k+64",
> -		.data = &nand_hdr_2gb_2k_64_data
> -	}, {
> -		.name = "4g:2k+64",
> -		.data = &nand_hdr_4gb_2k_64_data
> -	}, {
> -		.name = "2g:2k+128",
> -		.data = &nand_hdr_2gb_2k_128_data
> -	}, {
> -		.name = "4g:2k+128",
> -		.data = &nand_hdr_4gb_2k_128_data
> -	}
> -};
> +#include "mtk_nand_headers.h"
>  
>  static const struct brom_img_type {
>  	const char *name;
> @@ -264,6 +55,7 @@ static uint32_t crc32tbl[256];
>  
>  /* NAND header selected by user */
>  static const union nand_boot_header *hdr_nand;
> +static uint32_t hdr_nand_size;
>  
>  /* GFH header + 2 * 4KB pages of NAND */
>  static char hdr_tmp[sizeof(struct gfh_header) + 0x2000];
> @@ -402,12 +194,7 @@ static int mtk_brom_parse_imagename(const char
>  *imagename)
>  	}
>  
>  	/* parse nand header type */
> -	for (i = 0; i < ARRAY_SIZE(nand_headers); i++) {
> -		if (!strcmp(nand_headers[i].name, nandinfo)) {
> -			hdr_nand = nand_headers[i].data;
> -			break;
> -		}
> -	}
> +	hdr_nand = mtk_nand_header_find(nandinfo);
>  
>  	/* parse device header offset */
>  	if (hdr_offs && hdr_offs[0])
> @@ -432,6 +219,8 @@ static int mtk_brom_parse_imagename(const char
>  *imagename)
>  		return -EINVAL;
>  	}
>  
> +	hdr_nand_size = mtk_nand_header_size(hdr_nand);

This call has to be guarded and only happen in case of NAND or SNAND,
otherwise we get segfault because of NULL pointer here in case of
non-NAND boot media.

> +
>  	return 0;
>  }
>  
> @@ -468,7 +257,7 @@ static int mtk_image_vrec_header(struct
>  image_tool_params *params,
>  	}
>  
>  	if (hdr_media == BRLYT_TYPE_NAND || hdr_media == BRLYT_TYPE_SNAND)
> -		tparams->header_size = 2 * le16_to_cpu(hdr_nand->pagesize);
> +		tparams->header_size = hdr_nand_size;
>  	else
>  		tparams->header_size = sizeof(struct gen_device_header);
>  
> @@ -566,16 +355,17 @@ static int mtk_image_verify_gen_header(const uint8_t
>  *ptr, int print)
>  
>  static int mtk_image_verify_nand_header(const uint8_t *ptr, int print)
>  {
> -	union nand_boot_header *nh = (union nand_boot_header *)ptr;
>  	struct brom_layout_header *bh;
> +	struct nand_header_info info;
>  	struct gfh_header *gfh;
>  	const char *bootmedia;
> +	int ret;
>  
> -	if (strncmp(nh->version, NAND_BOOT_VERSION, sizeof(nh->version)) ||
> -	    strcmp(nh->id, NAND_BOOT_ID))
> -		return -1;
> +	ret = mtk_nand_header_info(ptr, &info);
> +	if (ret < 0)
> +		return ret;
>  
> -	bh = (struct brom_layout_header *)(ptr + le16_to_cpu(nh->pagesize));
> +	bh = (struct brom_layout_header *)(ptr + info.page_size);
>  
>  	if (strcmp(bh->name, BRLYT_NAME))
>  		return -1;
> @@ -586,34 +376,23 @@ static int mtk_image_verify_nand_header(const uint8_t
>  *ptr, int print)
>  		if (le32_to_cpu(bh->type) == BRLYT_TYPE_NAND)
>  			bootmedia = "Parallel NAND";
>  		else if (le32_to_cpu(bh->type) == BRLYT_TYPE_SNAND)
> -			bootmedia = "Serial NAND";
> +			bootmedia = "Serial NAND (SNFI/AP)";
>  		else
>  			return -1;
>  	}
>  
>  	if (print) {
> -		printf("Boot Media: %s\n", bootmedia);
> -
> -		if (le32_to_cpu(bh->type) == BRLYT_TYPE_NAND) {
> -			uint64_t capacity =
> -				(uint64_t)le16_to_cpu(nh->numblocks) *
> -				(uint64_t)le16_to_cpu(nh->pages_of_block) *
> -				(uint64_t)le16_to_cpu(nh->pagesize) * 8;
> -			printf("Capacity:     %dGb\n",
> -			       (uint32_t)(capacity >> 30));
> -		}
> +		printf("Boot Media:   %s\n", bootmedia);
>  
> -		if (le16_to_cpu(nh->pagesize) >= 1024)
> -			printf("Page Size:    %dKB\n",
> -			       le16_to_cpu(nh->pagesize) >> 10);
> +		if (info.page_size >= 1024)
> +			printf("Page Size:    %dKB\n", info.page_size >> 10);
>  		else
> -			printf("Page Size:    %dB\n",
> -			       le16_to_cpu(nh->pagesize));
> +			printf("Page Size:    %dB\n", info.page_size);
>  
> -		printf("Spare Size:   %dB\n", le16_to_cpu(nh->oobsize));
> +		printf("Spare Size:   %dB\n", info.spare_size);
>  	}
>  
> -	gfh = (struct gfh_header *)(ptr + 2 * le16_to_cpu(nh->pagesize));
> +	gfh = (struct gfh_header *)(ptr + info.gfh_offset);
>  
>  	return mtk_image_verify_gfh(gfh, GFH_FLASH_TYPE_NAND, print);
>  }
> @@ -713,7 +492,7 @@ static int mtk_image_verify_header(unsigned char *ptr,
>  int image_size,
>  	if (image_get_magic(hdr) == IH_MAGIC)
>  		return mtk_image_verify_mt7621_header(ptr, 0);
>  
> -	if (!strcmp((char *)ptr, NAND_BOOT_NAME))
> +	if (is_mtk_nand_header(ptr))
>  		return mtk_image_verify_nand_header(ptr, 0);
>  	else
>  		return mtk_image_verify_gen_header(ptr, 0);
> @@ -739,7 +518,7 @@ static void mtk_image_print_header(const void *ptr)
>  		return;
>  	}
>  
> -	if (!strcmp((char *)ptr, NAND_BOOT_NAME))
> +	if (is_mtk_nand_header(ptr))
>  		mtk_image_verify_nand_header(ptr, 1);
>  	else
>  		mtk_image_verify_gen_header(ptr, 1);
> @@ -870,36 +649,33 @@ static void mtk_image_set_gen_header(void *ptr, off_t
>  filesize,
>  static void mtk_image_set_nand_header(void *ptr, off_t filesize,
>  				      uint32_t loadaddr)
>  {
> -	union nand_boot_header *nh = (union nand_boot_header *)ptr;
>  	struct brom_layout_header *brlyt;
>  	struct gfh_header *gfh;
> -	uint32_t payload_pages;
> -	int i;
> +	uint32_t payload_pages, nand_page_size;
>  
> -	/* NAND device header, repeat 4 times */
> -	for (i = 0; i < 4; i++)
> -		memcpy(nh + i, hdr_nand, sizeof(union nand_boot_header));
> +	/* NAND header */
> +	nand_page_size = mtk_nand_header_put(hdr_nand, ptr);
>  
> -	/* BRLYT header */
> -	payload_pages = (filesize + le16_to_cpu(hdr_nand->pagesize) - 1) /
> -			le16_to_cpu(hdr_nand->pagesize);
> -	brlyt = (struct brom_layout_header *)
> -		(ptr + le16_to_cpu(hdr_nand->pagesize));
> -	put_brom_layout_header(brlyt, hdr_media);
> -	brlyt->header_size = cpu_to_le32(2);
> -	brlyt->total_size = cpu_to_le32(payload_pages);
> -	brlyt->header_size_2 = brlyt->header_size;
> -	brlyt->total_size_2 = brlyt->total_size;
> -	brlyt->unused = cpu_to_le32(1);
> +	if (nand_page_size) {
> +		/* BRLYT header */
> +		payload_pages = (filesize + nand_page_size - 1) /
> +				nand_page_size;
> +		brlyt = (struct brom_layout_header *)(ptr + nand_page_size);
> +		put_brom_layout_header(brlyt, hdr_media);
> +		brlyt->header_size = cpu_to_le32(2);
> +		brlyt->total_size = cpu_to_le32(payload_pages);
> +		brlyt->header_size_2 = brlyt->header_size;
> +		brlyt->total_size_2 = brlyt->total_size;
> +		brlyt->unused = cpu_to_le32(1);
> +	}
>  
>  	/* GFH header */
> -	gfh = (struct gfh_header *)(ptr + 2 * le16_to_cpu(hdr_nand->pagesize));
> -	put_ghf_header(gfh, filesize, 2 * le16_to_cpu(hdr_nand->pagesize),
> -		       loadaddr, GFH_FLASH_TYPE_NAND);
> +	gfh = (struct gfh_header *)(ptr + hdr_nand_size);
> +	put_ghf_header(gfh, filesize, hdr_nand_size, loadaddr,
> +		       GFH_FLASH_TYPE_NAND);
>  
>  	/* Generate SHA256 hash */
> -	put_hash((uint8_t *)gfh,
> -		 filesize - 2 * le16_to_cpu(hdr_nand->pagesize) - SHA256_SUM_LEN);
> +	put_hash((uint8_t *)gfh, filesize - hdr_nand_size - SHA256_SUM_LEN);
>  }
>  
>  static void mtk_image_set_mt7621_header(void *ptr, off_t filesize,
> diff --git a/tools/mtk_image.h b/tools/mtk_image.h
> index d868545a33..fad9372100 100644
> --- a/tools/mtk_image.h
> +++ b/tools/mtk_image.h
> @@ -26,31 +26,6 @@ union gen_boot_header {
>  #define SF_BOOT_NAME		"SF_BOOT"
>  #define SDMMC_BOOT_NAME		"SDMMC_BOOT"
>  
> -/* Header for NAND */
> -union nand_boot_header {
> -	struct {
> -		char name[12];
> -		char version[4];
> -		char id[8];
> -		uint16_t ioif;
> -		uint16_t pagesize;
> -		uint16_t addrcycles;
> -		uint16_t oobsize;
> -		uint16_t pages_of_block;
> -		uint16_t numblocks;
> -		uint16_t writesize_shift;
> -		uint16_t erasesize_shift;
> -		uint8_t dummy[60];
> -		uint8_t ecc_parity[28];
> -	};
> -
> -	uint8_t data[0x80];
> -};
> -
> -#define NAND_BOOT_NAME		"BOOTLOADER!"
> -#define NAND_BOOT_VERSION	"V006"
> -#define NAND_BOOT_ID		"NFIINFO"
> -
>  /* BootROM layout header */
>  struct brom_layout_header {
>  	char name[8];
> diff --git a/tools/mtk_nand_headers.c b/tools/mtk_nand_headers.c
> new file mode 100644
> index 0000000000..12f827c39f
> --- /dev/null
> +++ b/tools/mtk_nand_headers.c
> @@ -0,0 +1,286 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * MediaTek BootROM NAND header definitions
> + *
> + * Copyright (C) 2022 MediaTek Inc.
> + * Author: Weijie Gao <weijie.gao at mediatek.com>
> + */
> +
> +#include <stdint.h>
> +#include <string.h>
> +#include "imagetool.h"
> +#include "mtk_image.h"
> +#include "mtk_nand_headers.h"
> +
> +/* NAND header for SPI-NAND with 2KB page + 64B spare */
> +static const union nand_boot_header snand_hdr_2k_64_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x03, 0x00, 0x40, 0x00,
> +		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x7B, 0xC4, 0x17, 0x9D,
> +		0xCA, 0x42, 0x90, 0xD0, 0x98, 0xD0, 0xE0, 0xF7,
> +		0xDB, 0xCD, 0x16, 0xF6, 0x03, 0x73, 0xD2, 0xB8,
> +		0x93, 0xB2, 0x56, 0x5A, 0x84, 0x6E, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for SPI-NAND with 2KB page + 120B/128B spare */
> +static const union nand_boot_header snand_hdr_2k_128_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> +		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x90, 0x28, 0xED, 0x13,
> +		0x7F, 0x12, 0x22, 0xCD, 0x3D, 0x06, 0xF1, 0xB3,
> +		0x6F, 0x2E, 0xD9, 0xA0, 0x9D, 0x7A, 0xBD, 0xD7,
> +		0xB3, 0x28, 0x3C, 0x13, 0xDB, 0x4E, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for SPI-NAND with 4KB page + 256B spare */
> +static const union nand_boot_header snand_hdr_4k_256_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x10, 0x05, 0x00, 0xE0, 0x00,
> +		0x40, 0x00, 0x00, 0x08, 0x10, 0x00, 0x16, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x47, 0xED, 0x0E, 0xC3,
> +		0x83, 0xBF, 0x41, 0xD2, 0x85, 0x21, 0x97, 0x57,
> +		0xC4, 0x2E, 0x6B, 0x7A, 0x40, 0xE0, 0xCF, 0x8F,
> +		0x37, 0xBD, 0x17, 0xB6, 0xC7, 0xFE, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for Parallel NAND 1Gb with 2KB page + 64B spare */
> +static const union nand_boot_header nand_hdr_1gb_2k_64_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> +		0x40, 0x00, 0x00, 0x04, 0x0B, 0x00, 0x11, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x12, 0x28, 0x1C, 0x12,
> +		0x8F, 0xFD, 0xF8, 0x32, 0x6F, 0x6D, 0xCF, 0x6C,
> +		0xDA, 0x21, 0x70, 0x8C, 0xDA, 0x0A, 0x22, 0x82,
> +		0xAA, 0x59, 0xFA, 0x7C, 0x42, 0x2D, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for Parallel NAND 2Gb with 2KB page + 64B spare */
> +static const union nand_boot_header nand_hdr_2gb_2k_64_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> +		0x40, 0x00, 0x00, 0x08, 0x0B, 0x00, 0x11, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x20, 0x9C, 0x3D, 0x2D,
> +		0x7B, 0x68, 0x63, 0x52, 0x2E, 0x04, 0x63, 0xF1,
> +		0x35, 0x4E, 0x44, 0x3E, 0xF8, 0xAC, 0x9B, 0x95,
> +		0xAB, 0xFE, 0xE4, 0xE1, 0xD5, 0xF9, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for Parallel NAND 4Gb with 2KB page + 64B spare */
> +static const union nand_boot_header nand_hdr_4gb_2k_64_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x40, 0x00,
> +		0x40, 0x00, 0x00, 0x10, 0x0B, 0x00, 0x11, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0xE3, 0x0F, 0x86, 0x32,
> +		0x68, 0x05, 0xD9, 0xC8, 0x13, 0xDF, 0xC5, 0x0B,
> +		0x35, 0x3A, 0x68, 0xA5, 0x3C, 0x0C, 0x73, 0x87,
> +		0x63, 0xB0, 0xBE, 0xCC, 0x84, 0x47, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for Parallel NAND 2Gb with 2KB page + 128B spare */
> +static const union nand_boot_header nand_hdr_2gb_2k_128_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> +		0x40, 0x00, 0x00, 0x08, 0x0B, 0x00, 0x11, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x01, 0xA5, 0xE9, 0x5A,
> +		0xDF, 0x58, 0x62, 0x41, 0xD6, 0x26, 0x77, 0xBC,
> +		0x76, 0x1F, 0x27, 0x4E, 0x4F, 0x6C, 0xC3, 0xF0,
> +		0x36, 0xDE, 0xD9, 0xB3, 0xFF, 0x93, 0x00, 0x00
> +	}
> +};
> +
> +/* NAND header for Parallel NAND 4Gb with 2KB page + 128B spare */
> +static const union nand_boot_header nand_hdr_4gb_2k_128_data = {
> +	.data = {
> +		0x42, 0x4F, 0x4F, 0x54, 0x4C, 0x4F, 0x41, 0x44,
> +		0x45, 0x52, 0x21, 0x00, 0x56, 0x30, 0x30, 0x36,
> +		0x4E, 0x46, 0x49, 0x49, 0x4E, 0x46, 0x4F, 0x00,
> +		0x00, 0x00, 0x00, 0x08, 0x05, 0x00, 0x70, 0x00,
> +		0x40, 0x00, 0x00, 0x10, 0x0B, 0x00, 0x11, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +		0x00, 0x00, 0x00, 0x00, 0xC2, 0x36, 0x52, 0x45,
> +		0xCC, 0x35, 0xD8, 0xDB, 0xEB, 0xFD, 0xD1, 0x46,
> +		0x76, 0x6B, 0x0B, 0xD5, 0x8B, 0xCC, 0x2B, 0xE2,
> +		0xFE, 0x90, 0x83, 0x9E, 0xAE, 0x2D, 0x00, 0x00
> +	}
> +};
> +
> +static const struct nand_header_type {
> +	const char *name;
> +	const union nand_boot_header *data;
> +} nand_headers[] = {
> +	{
> +		.name = "2k+64",
> +		.data = &snand_hdr_2k_64_data
> +	}, {
> +		.name = "2k+120",
> +		.data = &snand_hdr_2k_128_data
> +	}, {
> +		.name = "2k+128",
> +		.data = &snand_hdr_2k_128_data
> +	}, {
> +		.name = "4k+256",
> +		.data = &snand_hdr_4k_256_data
> +	}, {
> +		.name = "1g:2k+64",
> +		.data = &nand_hdr_1gb_2k_64_data
> +	}, {
> +		.name = "2g:2k+64",
> +		.data = &nand_hdr_2gb_2k_64_data
> +	}, {
> +		.name = "4g:2k+64",
> +		.data = &nand_hdr_4gb_2k_64_data
> +	}, {
> +		.name = "2g:2k+128",
> +		.data = &nand_hdr_2gb_2k_128_data
> +	}, {
> +		.name = "4g:2k+128",
> +		.data = &nand_hdr_4gb_2k_128_data
> +	}
> +};
> +
> +const union nand_boot_header *mtk_nand_header_find(const char *name)
> +{
> +	uint32_t i;
> +
> +	for (i = 0; i < ARRAY_SIZE(nand_headers); i++) {
> +		if (!strcmp(nand_headers[i].name, name))
> +			return nand_headers[i].data;
> +	}
> +
> +	return NULL;
> +}
> +
> +uint32_t mtk_nand_header_size(const union nand_boot_header *hdr_nand)
> +{
> +	return 2 * le16_to_cpu(hdr_nand->pagesize);
> +}
> +
> +static int mtk_nand_header_ap_info(const void *ptr,
> +				   struct nand_header_info *info)
> +{
> +	union nand_boot_header *nh = (union nand_boot_header *)ptr;
> +
> +	if (strncmp(nh->version, NAND_BOOT_VERSION, sizeof(nh->version)) ||
> +	    strcmp(nh->id, NAND_BOOT_ID))
> +		return -1;
> +
> +	info->page_size = le16_to_cpu(nh->pagesize);
> +	info->spare_size = le16_to_cpu(nh->oobsize);
> +	info->gfh_offset = 2 * info->page_size;
> +
> +	return 0;
> +}
> +
> +int mtk_nand_header_info(const void *ptr, struct nand_header_info *info)
> +{
> +	if (!strcmp((char *)ptr, NAND_BOOT_NAME))
> +		return mtk_nand_header_ap_info(ptr, info);
> +
> +	return -1;
> +}
> +
> +bool is_mtk_nand_header(const void *ptr)
> +{
> +	struct nand_header_info info;
> +
> +	if (mtk_nand_header_info(ptr, &info) >= 0)
> +		return true;
> +
> +	return false;
> +}
> +
> +uint32_t mtk_nand_header_put(const union nand_boot_header *hdr_nand, void
>  *ptr)
> +{
> +	union nand_boot_header *nh = (union nand_boot_header *)ptr;
> +	int i;
> +
> +	/* NAND device header, repeat 4 times */
> +	for (i = 0; i < 4; i++)
> +		memcpy(nh + i, hdr_nand, sizeof(union nand_boot_header));
> +
> +	return le16_to_cpu(hdr_nand->pagesize);
> +}
> diff --git a/tools/mtk_nand_headers.h b/tools/mtk_nand_headers.h
> new file mode 100644
> index 0000000000..691db85005
> --- /dev/null
> +++ b/tools/mtk_nand_headers.h
> @@ -0,0 +1,52 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * MediaTek BootROM NAND header definitions
> + *
> + * Copyright (C) 2022 MediaTek Inc.
> + * Author: Weijie Gao <weijie.gao at mediatek.com>
> + */
> +
> +#ifndef _MTK_NAND_HEADERS_H
> +#define _MTK_NAND_HEADERS_H
> +
> +#include <stdint.h>
> +#include <stdbool.h>
> +
> +struct nand_header_info {
> +	uint32_t page_size;
> +	uint32_t spare_size;
> +	uint32_t gfh_offset;
> +};
> +
> +/* AP BROM Header for NAND */
> +union nand_boot_header {
> +	struct {
> +		char name[12];
> +		char version[4];
> +		char id[8];
> +		uint16_t ioif;
> +		uint16_t pagesize;
> +		uint16_t addrcycles;
> +		uint16_t oobsize;
> +		uint16_t pages_of_block;
> +		uint16_t numblocks;
> +		uint16_t writesize_shift;
> +		uint16_t erasesize_shift;
> +		uint8_t dummy[60];
> +		uint8_t ecc_parity[28];
> +	};
> +
> +	uint8_t data[0x80];
> +};
> +
> +#define NAND_BOOT_NAME		"BOOTLOADER!"
> +#define NAND_BOOT_VERSION	"V006"
> +#define NAND_BOOT_ID		"NFIINFO"
> +
> +const union nand_boot_header *mtk_nand_header_find(const char *name);
> +uint32_t mtk_nand_header_size(const union nand_boot_header *hdr_nand);
> +int mtk_nand_header_info(const void *ptr, struct nand_header_info *info);
> +bool is_mtk_nand_header(const void *ptr);
> +uint32_t mtk_nand_header_put(const union nand_boot_header *hdr_nand, void
>  *ptr);
> +
> +#endif /* _MTK_NAND_HEADERS_H */
> -- 
> 2.17.1
> 


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