package/boot/uboot-mediatek/patches/101-27-tools-mtk_image-use-uint32_t-for-ghf-header-magic-an.patch

   1 From 757b997f1f5a958e6fec3d5aee1ff5cdf5766711 Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Wed, 19 Jul 2023 17:17:45 +0800
   4 Subject: [PATCH 27/29] tools: mtk_image: use uint32_t for ghf header magic and
   5  version
   6
   7 This patch converts magic and version fields of ghf common header
   8 to one field with the type of uint32_t to make this header flexible
   9 for futher updates.
  10
  11 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
  12 ---
  13  tools/mtk_image.c | 10 ++++++----
  14  tools/mtk_image.h |  6 +++---
  15  2 files changed, 9 insertions(+), 7 deletions(-)
  16
  17 --- a/tools/mtk_image.c
  18 +++ b/tools/mtk_image.c
  19 @@ -542,11 +542,13 @@ static void put_brom_layout_header(struc
  20         hdr->type = cpu_to_le32(type);
  21  }
  22
  23 -static void put_ghf_common_header(struct gfh_common_header *gfh, int size,
  24 -                                 int type, int ver)
  25 +static void put_ghf_common_header(struct gfh_common_header *gfh, uint16_t size,
  26 +                                 uint16_t type, uint8_t ver)
  27  {
  28 -       memcpy(gfh->magic, GFH_HEADER_MAGIC, sizeof(gfh->magic));
  29 -       gfh->version = ver;
  30 +       uint32_t magic_version = GFH_HEADER_MAGIC |
  31 +                                (uint32_t)ver << GFH_HEADER_VERSION_SHIFT;
  32 +
  33 +       gfh->magic_version = cpu_to_le32(magic_version);
  34         gfh->size = cpu_to_le16(size);
  35         gfh->type = cpu_to_le16(type);
  36  }
  37 --- a/tools/mtk_image.h
  38 +++ b/tools/mtk_image.h
  39 @@ -63,13 +63,13 @@ struct gen_device_header {
  40
  41  /* BootROM header definitions */
  42  struct gfh_common_header {
  43 -       uint8_t magic[3];
  44 -       uint8_t version;
  45 +       uint32_t magic_version;
  46         uint16_t size;
  47         uint16_t type;
  48  };
  49
  50 -#define GFH_HEADER_MAGIC       "MMM"
  51 +#define GFH_HEADER_MAGIC               0x4D4D4D
  52 +#define GFH_HEADER_VERSION_SHIFT       24
  53
  54  #define GFH_TYPE_FILE_INFO     0
  55  #define GFH_TYPE_BL_INFO       1