diff options
Diffstat (limited to 'tools/rkcommon.c')
| -rw-r--r-- | tools/rkcommon.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/tools/rkcommon.c b/tools/rkcommon.c index 1880fef..f826001 100644 --- a/tools/rkcommon.c +++ b/tools/rkcommon.c @@ -13,6 +13,8 @@ #include "mkimage.h" #include "rkcommon.h" +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + enum { RK_SIGNATURE = 0x0ff0aa55, }; @@ -160,9 +162,21 @@ static void rkcommon_set_header0(void *buf, uint file_size, hdr->disable_rc4 = !rkcommon_need_rc4_spl(params); hdr->init_offset = RK_INIT_OFFSET; - hdr->init_size = (file_size + RK_BLK_SIZE - 1) / RK_BLK_SIZE; - hdr->init_size = (hdr->init_size + 3) & ~3; - hdr->init_boot_size = hdr->init_size + RK_MAX_BOOT_SIZE / RK_BLK_SIZE; + hdr->init_size = DIV_ROUND_UP(file_size, RK_BLK_SIZE); + /* + * The init_size has to be a multiple of 4 blocks (i.e. of 2K) + * or the BootROM will not boot the image. + * + * Note: To verify that this is not a legacy constraint, we + * rechecked this against the RK3399 BootROM. + */ + hdr->init_size = ROUND(hdr->init_size, 4); + /* + * The images we create do not contain the stage following the SPL as + * part of the SPL image, so the init_boot_size (which might have been + * read by Rockchip's miniloder) should be the same as the init_size. + */ + hdr->init_boot_size = hdr->init_size; rc4_encode(buf, RK_BLK_SIZE, rc4_key); } |