diff options
Diffstat (limited to 'chip/g/flash_info.h')
| -rw-r--r-- | chip/g/flash_info.h | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/chip/g/flash_info.h b/chip/g/flash_info.h index 9ff730b39e..e07fac1ed7 100644 --- a/chip/g/flash_info.h +++ b/chip/g/flash_info.h @@ -11,17 +11,24 @@ #include "signed_header.h" /* - * Info1 space available to the app firmware is split in several areas. Of - * interest are the two spaces used for rollback prevention of RO and RW image - * versions. + * Info1 space available to the app firmware is split in four equal size + * areas, used as follows: * - * Each bit in the image infomap header section is mapped into a 4 byte word - * in the Info1 space. + * Area 0 - RO rollback prevention + * Area 1 - RW rollback prevention + * Area 2 - Board specific stuff + * Area 3 - Crypto scratch */ +#define INFO_AREA_SIZE (INFO_MAX * 4) +#define INFO_TOTAL_SIZE (INFO_AREA_SIZE * 4) + #define INFO_RO_MAP_OFFSET 0 -#define INFO_RO_MAP_SIZE (INFO_MAX * 4) -#define INFO_RW_MAP_OFFSET INFO_RO_MAP_SIZE -#define INFO_RW_MAP_SIZE (INFO_MAX * 4) +#define INFO_RO_MAP_SIZE INFO_AREA_SIZE + +#define INFO_RW_MAP_OFFSET (INFO_RO_MAP_OFFSET + INFO_RO_MAP_SIZE) +#define INFO_RW_MAP_SIZE INFO_AREA_SIZE + +#define INFO_BOARD_SPACE_OFFSET (INFO_RW_MAP_OFFSET + INFO_RW_MAP_SIZE) int flash_info_read_enable(uint32_t offset, size_t size); /* This in fact enables both read and write. */ |