FLASH_LOC_BOOT_AREA
start = t4_flash_loc_start(adap, FLASH_LOC_BOOT_AREA, &len);
[FLASH_LOC_BOOT_AREA] = { 0, 8 }, /* Spans complete Boot Area */
[FLASH_LOC_BOOT_AREA] = { 32, 17 }, /* Spans complete UEFI/PXE Boot Area */