diff options
Diffstat (limited to 'src/flash/nor/cfi.c')
| -rw-r--r-- | src/flash/nor/cfi.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/flash/nor/cfi.c b/src/flash/nor/cfi.c index 2235c85c..ba2d9095 100644 --- a/src/flash/nor/cfi.c +++ b/src/flash/nor/cfi.c @@ -624,8 +624,18 @@ FLASH_BANK_COMMAND_HANDLER(cfi_flash_bank_command) return ERROR_FLASH_BANK_INVALID; } + /* both widths must: + * - not exceed max value; + * - not be null; + * - be equal to a power of 2. + * bus must be wide enought to hold one chip */ if ((bank->chip_width > CFI_MAX_CHIP_WIDTH) - || (bank->bus_width > CFI_MAX_BUS_WIDTH)) + || (bank->bus_width > CFI_MAX_BUS_WIDTH) + || (bank->chip_width == 0) + || (bank->bus_width == 0) + || (bank->chip_width & (bank->chip_width - 1)) + || (bank->bus_width & (bank->bus_width - 1)) + || (bank->chip_width > bank->bus_width)) { LOG_ERROR("chip and bus width have to specified in bytes"); return ERROR_FLASH_BANK_INVALID; |