diff options
Diffstat (limited to 'chip/g/upgrade_fw.c')
| -rw-r--r-- | chip/g/upgrade_fw.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/chip/g/upgrade_fw.c b/chip/g/upgrade_fw.c index 17bffe5f4c..c9c2176265 100644 --- a/chip/g/upgrade_fw.c +++ b/chip/g/upgrade_fw.c @@ -383,6 +383,23 @@ void fw_upgrade_command_handler(void *body, return; } + if ((block_offset == valid_sections.ro_base_offset) || + (block_offset == valid_sections.rw_base_offset)) { + /* + * This is the header coming, let's corrupt it so that it does + * not run until it's time to switch. + */ + struct SignedHeader *header; + + header = (struct SignedHeader *) upgrade_data; + + /* + * Set the top bit of the size field. It will be impossible to + * run this image until this bit is erased. + */ + header->image_size |= TOP_IMAGE_SIZE_BIT; + } + CPRINTF("%s: programming at address 0x%x\n", __func__, block_offset + CONFIG_PROGRAM_MEMORY_BASE); if (flash_physical_write(block_offset, body_size, upgrade_data) |