diff options
| -rw-r--r-- | tools/kwboot.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tools/kwboot.c b/tools/kwboot.c index c8c7a8d246..f624edc779 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -1780,6 +1780,47 @@ kwboot_img_is_secure(void *img) return 0; } +static int +kwboot_img_has_ddr_init(void *img) +{ + const struct register_set_hdr_v1 *rhdr; + const struct main_hdr_v0 *hdr0; + struct opt_hdr_v1 *ohdr; + u32 ohdrsz; + int last; + + /* + * kwbimage v0 image headers contain DDR init code either in + * extension header or in binary code header. + */ + if (kwbimage_version(img) == 0) { + hdr0 = img; + return hdr0->ext || hdr0->bin; + } + + /* + * kwbimage v1 image headers contain DDR init code either in binary + * code header or in a register set list header with SDRAM_SETUP. + */ + for_each_opt_hdr_v1 (ohdr, img) { + if (ohdr->headertype == OPT_HDR_V1_BINARY_TYPE) + return 1; + if (ohdr->headertype == OPT_HDR_V1_REGISTER_TYPE) { + rhdr = (const struct register_set_hdr_v1 *)ohdr; + ohdrsz = opt_hdr_v1_size(ohdr); + if (ohdrsz >= sizeof(*ohdr) + sizeof(rhdr->data[0].last_entry)) { + ohdrsz -= sizeof(*ohdr) + sizeof(rhdr->data[0].last_entry); + last = ohdrsz / sizeof(rhdr->data[0].entry); + if (rhdr->data[last].last_entry.delay == + REGISTER_SET_HDR_OPT_DELAY_SDRAM_SETUP) + return 1; + } + } + } + + return 0; +} + static void * kwboot_img_grow_data_right(void *img, size_t *size, size_t grow) { @@ -2011,6 +2052,13 @@ kwboot_img_patch(void *img, size_t *size, int baudrate) kwboot_img_grow_data_right(img, size, sizeof(uint32_t)); } + if (!kwboot_img_has_ddr_init(img) && + (le32_to_cpu(hdr->destaddr) < 0x40000000 || + le32_to_cpu(hdr->destaddr) + le32_to_cpu(hdr->blocksize) > 0x40034000)) { + fprintf(stderr, "Image does not contain DDR init code needed for UART booting\n"); + goto err; + } + is_secure = kwboot_img_is_secure(img); if (hdr->blockid != IBR_HDR_UART_ID) { |