boot0/Code dump
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; reset vectors FFFF0000 LDR PC, =_start FFFF0004 LDR PC, =__arm_undefined_handler FFFF0008 LDR PC, =__arm_syscall_handler FFFF000C LDR PC, =__arm_prefetch_abort_handler FFFF0010 LDR PC, =__arm_data_abort_handler FFFF0014 LDR PC, =__arm_reserved_handler FFFF0018 LDR PC, =__arm_irq_handler FFFF001C LDR PC, =__arm_fiq_handler FFFF001C ; --------------------------------------------------------------------------- FFFF0020 off_FFFF0020 DCD _start ; DATA XREF: FFFF0000 FFFF0024 off_FFFF0024 DCD __arm_undefined ; DATA XREF: FFFF0004 FFFF0028 off_FFFF0028 DCD __arm_syscall ; DATA XREF: FFFF0008 FFFF002C off_FFFF002C DCD __arm_prefetch_abort ; DATA XREF: FFFF000C FFFF0030 off_FFFF0030 DCD __arm_data_abort ; DATA XREF: FFFF0010 FFFF0034 off_FFFF0034 DCD __arm_reserved ; DATA XREF: FFFF0014 FFFF0038 off_FFFF0038 DCD __arm_irq ; DATA XREF: FFFF0018 FFFF003C off_FFFF003C DCD __arm_fiq ; DATA XREF: FFFF001C FFFF0040 ; =============== S U B R O U T I N E ======================================= FFFF0040 _start ; CODE XREF: FFFF0000 FFFF001C FFFF0040 ; DATA XREF: off_FFFF0020 FFFF0040 MOV R1, #0 FFFF0044 MOV R4, #0 FFFF0048 MOV R11, #0 FFFF004C MOV R11, #0 FFFF0050 MOV LR, #0 FFFF0054 LDR SP, =0xD417C00 ; set stack pointer to top of SRAM FFFF0058 BL _main FFFF005C BL panic ; should never be reached FFFF005C ; End of function _start ; All of the other vector handlers just hang FFFF0060 __arm_undefined_handler FFFF0060 B __arm_undefined_handler FFFF0064 __arm_syscall_handler FFFF0064 B __arm_syscall_handler FFFF0068 __arm_prefetch_abort_handler FFFF0068 B __arm_prefetch_abort_handler FFFF006C __arm_data_abort_handler FFFF006C B __arm_data_abort_handler FFFF0070 __arm_reserved_handler FFFF0070 B __arm_reserved_handler FFFF0074 __arm_irq_handler FFFF0074 B __arm_irq_handler FFFF0078 __arm_fiq_handler FFFF0078 B __arm_fiq_handler FFFF007C _main ; CODE XREF: _start+18 FFFF007C B main FFFF0080 boot0_stack DCD 0xD417C00 ; DATA XREF: _start+14 FFFF0084 ; =============== S U B R O U T I N E ======================================= FFFF0084 debug_port_output ; CODE XREF: panic+14 panic+28 main+170 ... FFFF0084 MOV R3, #0xD800000 FFFF0088 LDR R2, [R3,#0xE0] FFFF008C MOV R0, R0,LSL#16 FFFF0090 BIC R2, R2, #0xFF0000 FFFF0094 AND R0, R0, #0xFF0000 FFFF0098 ORR R2, R2, R0 FFFF009C STR R2, [R3,#0xE0] ; output 8 bits to the 8 GPIOs at 0xD8000E0 FFFF00A0 BX LR FFFF00A0 ; End of function debug_port_output FFFF00A4 ; =============== S U B R O U T I N E ======================================= FFFF00A4 ; int __stdcall panic(unsigned __int8 error) FFFF00A4 panic ; CODE XREF: _start+1C main+3B8 main+3D4 FFFF00A4 MOV R12, SP FFFF00A8 STMFD SP!, {R4,R11,R12,LR,PC} FFFF00AC SUB R11, R12, #4 FFFF00B0 MOV R4, R0 FFFF00B4 loc_FFFF00B4 ; CODE XREF: panic+38 FFFF00B4 MOV R0, R4 ; alternate between 0 and the error code FFFF00B8 BL debug_port_output FFFF00BC MOVL R0, 1000000 FFFF00C4 BL delay FFFF00C8 MOV R0, #0 FFFF00CC BL debug_port_output FFFF00D0 MOVL R0, 1000000 FFFF00D8 BL delay FFFF00DC B loc_FFFF00B4 ; infinite loop FFFF00DC ; End of function panic FFFF00E0 ; =============== S U B R O U T I N E ======================================= FFFF00E0 init_gpio_direction ; CODE XREF: main+104 FFFF00E0 MOV R3, #0xD800000 ; configure GPIO direction registers FFFF00E4 LDR R2, [R3,#0xDC] FFFF00E8 AND R2, R2, #0xFF000000 FFFF00EC ORR R2, R2, #0xFF0000 FFFF00F0 STR R2, [R3,#0xDC] ; D8000DC = (D8000DC & 0xff000000) | 0x00ff0000 FFFF00F4 LDR R2, [R3,#0xE4] FFFF00F8 AND R2, R2, #0xFF000000 FFFF00FC ORR R2, R2, #0xFF0000 FFFF0100 STR R2, [R3,#0xE4] ; D8000E4 = (D8000E4 & 0xff000000) | 0x00ff0000 FFFF0104 BX LR FFFF0104 ; End of function init_gpio_direction FFFF0108 ; =============== S U B R O U T I N E ======================================= FFFF0108 main ; CODE XREF: _main FFFF0108 MOV R12, SP FFFF010C STMFD SP!, {R4-R12,LR,PC} FFFF0110 MOV R3, #0xD000000 FFFF0114 SUB R11, R12, #4 FFFF0118 ADD R3, R3, #0x20000 ; R3 = 0D020000 = AES command reg FFFF011C MOV R9, #0 FFFF0120 MOV R1, #7 FFFF0124 MOV R2, #0xD800000 FFFF0128 SUB SP, SP, #0x2C FFFF012C STR R1, [R2,#0x60] ; 0D800060 = 7 FFFF0130 SUB R2, R11, #0x54 FFFF0134 STR R9, [R3] ; write 0 to AES command reg FFFF0138 LDR R1, =boot1_key FFFF013C STR R9, [R2] FFFF0140 MOV R0, R3 FFFF0144 MOV LR, #0xD400000 FFFF0148 MOV R2, #3 FFFF014C set_AES_key ; CODE XREF: main+50 FFFF014C LDR R3, [R1],#4 ; use hardcoded boot1 key FFFF0150 SUBS R2, R2, #1 FFFF0154 STR R3, [R0,#0xC] FFFF0158 BPL set_AES_key FFFF015C MOV R12, #0xD000000 FFFF0160 LDR R1, =boot1_iv ; boot1_iv is all zeroes FFFF0164 ADD R12, R12, #0x20000 FFFF0168 MOV R2, #3 FFFF016C set_AES_iv ; CODE XREF: main+70 FFFF016C LDR R3, [R1],#4 FFFF0170 SUBS R2, R2, #1 FFFF0174 STR R3, [R12,#0x10] FFFF0178 BPL set_AES_iv FFFF017C LDR R3, =0x67452301 ; set initial SHA context FFFF0180 MOVL R1, 0xD030000 FFFF0188 MOV R0, #0 FFFF018C LDR R2, =0xEFCDAB89 FFFF0190 STR LR, [R12,#4] FFFF0194 STR LR, [R12,#8] FFFF0198 STR R0, [R1] FFFF019C STR R3, [R1,#8] FFFF01A0 LDR R3, =0x98BADCFE FFFF01A4 STR R2, [R1,#0xC] FFFF01A8 LDR R2, =0x10325476 FFFF01AC STR R3, [R1,#0x10] FFFF01B0 LDR R3, =0xC3D2E1F0 FFFF01B4 STR R2, [R1,#0x14] FFFF01B8 MOV R2, #0xD400000 FFFF01BC STR R3, [R1,#0x18] FFFF01C0 STR R2, [R1,#4] FFFF01C4 MOVL R3, 0xD010000 FFFF01CC LDR R2, [R3,#4] FFFF01D0 MOVL R1, 0x80FF0000 FFFF01D8 ORR R2, R2, #0x8000000 FFFF01DC ADD R1, R1, #0x8000 FFFF01E0 STR R2, [R3,#4] FFFF01E4 MOV R4, #0xD800000 FFFF01E8 STR R0, [R3,#0x10] FFFF01EC STR R0, [R3,#0x14] FFFF01F0 STR R0, [R3,#8] FFFF01F4 STR R0, [R3,#0xC] FFFF01F8 STR R1, [R3] FFFF01FC MOV R3, #0x80000000 FFFF0200 MOV R6, R0 FFFF0204 STR R3, [R4,#0x1EC] ; 0D8001EC = 0x80000000 FFFF0208 SUB R5, R11, #0x3C FFFF020C BL init_gpio_direction FFFF0210 MOV R1, R6 ; c FFFF0214 MOV R0, R5 ; dest FFFF0218 MOV R2, #20 ; len FFFF021C BL memset ; zero out hash buffer FFFF0220 MOV R1, #16 ; read 20 bytes of OTP data into *R5 FFFF0224 get_otp_hash ; CODE XREF: main+138 FFFF0224 AND R3, R6, #0x1F FFFF0228 ORR R3, R3, #0x80000000 FFFF022C STR R3, [R4,#0x1EC] ; *starlet_otp_addr = (R6 & 0x1f) | 0x80000000; FFFF0230 LDR R2, [R4,#0x1F0] ; R2 = *starlet_otp_data FFFF0234 SUBS R1, R1, #4 FFFF0238 STR R2, [R5],#4 FFFF023C ADD R6, R6, #1 ; R6++ FFFF0240 BPL get_otp_hash FFFF0244 MOV R1, #0 FFFF0248 SUB R2, R11, #0x28 FFFF024C is_otp_hash_empty? ; CODE XREF: main+15C FFFF024C LDR R3, [R2,#-0x14] ; if OTP hash is all zeroes, then we're still FFFF0250 CMP R3, #0 ; in the factory with a blank OTP, so FFFF0254 ADD R1, R1, #1 ; don't verify the hash against boot1 FFFF0258 ADD R2, R2, #4 FFFF025C BNE otp_hash_not_empty FFFF0260 CMP R1, #4 FFFF0264 BLS is_otp_hash_empty? FFFF0268 loc_FFFF0268 ; CODE XREF: main+3CC FFFF0268 MOVL R8, 0xD010000 FFFF0270 MOV R4, #0 ; R4 = flash page number FFFF0274 boot1_read_loop ; CODE XREF: main+2F0 FFFF0274 MOV R0, R4 ; as we read in the flash pages, output FFFF0278 BL debug_port_output ; each page number to the debug port FFFF027C ORR R0, R4, #0x80 ; hi bit is a strobe bit FFFF0280 BL debug_port_output FFFF0284 loc_FFFF0284 ; CODE XREF: main+184 FFFF0284 LDR R3, [R8] ; R3 = *0D100000 = NAND status FFFF0288 CMP R3, #0 FFFF028C BLT loc_FFFF0284 ; wait for command to complete FFFF0290 CMP R4, #47 ; pageno > 47? FFFF0294 BCS done_reading_flash FFFF0298 MOV R3, #0x9F000000 FFFF029C STR R4, [R8,#0xC] FFFF02A0 STR R3, [R8] FFFF02A4 MOVL R0, 0xD010000 ; D010000 = NAND Flash HW FFFF02AC read_flash_page ; CODE XREF: main+1AC FFFF02AC LDR R3, [R0] ; wait for non-busy status from NAND flash FFFF02B0 CMP R3, #0 FFFF02B4 BLT read_flash_page FFFF02B8 AND R3, R4, #1 FFFF02BC MOV R3, R3,LSL#7 FFFF02C0 MOV R1, #0x80000000 FFFF02C4 ADD R3, R3, #0xD400000 FFFF02C8 ADD R1, R1, #0x308000 ; 0x30 = READ PAGE FFFF02CC MOV R2, R4,LSL#11 FFFF02D0 ADD R2, R2, #0xD400000 FFFF02D4 ADD R3, R3, #0x17800 ; read into 0xD417800 FFFF02D8 ADD R1, R1, #0x3840 FFFF02DC STR R2, [R0,#0x10] FFFF02E0 STR R3, [R0,#0x14] FFFF02E4 STR R1, [R0] ; send flash command FFFF02E8 done_reading_flash ; CODE XREF: main+18C FFFF02E8 MOVL R2, 0xD020000 ; D020000 = AES hw FFFF02F0 loc_FFFF02F0 ; CODE XREF: main+1F0 FFFF02F0 LDR R3, [R2] FFFF02F4 CMP R3, #0 ; wait for non-busy status from AES FFFF02F8 BLT loc_FFFF02F0 FFFF02FC CMP R4, #0 FFFF0300 BEQ loc_FFFF03D0 FFFF0304 CMP R4, #47 FFFF0308 BHI loc_FFFF03D0 FFFF030C SUB R2, R4, #1 FFFF0310 AND R3, R2, #1 FFFF0314 MOV R3, R3,LSL#7 FFFF0318 ADD R6, R3, #0xD400000 FFFF031C MOV R2, R2,LSL#11 FFFF0320 MOV R10, #0xFF0 FFFF0324 ADD R6, R6, #0x17800 FFFF0328 ADD R10, R10, #0xF FFFF032C ADD R5, R2, #0xD400000 FFFF0330 MOV R7, #0 FFFF0334 calc_ecc ; CODE XREF: main+2A4 FFFF0334 MOV R2, R7,LSL#2 ; this code takes the hardware-generated ECC syndrome FFFF0338 ADD R3, R6, #0x30 ; from the NAND flash interface, and uses it to try to FFFF033C LDR R12, [R3,R2] ; correct single-bit errors in boot1. FFFF0340 ADD R0, R6, R2 ; If we hit more than one error per 512 bytes, we're screwed. FFFF0344 AND R1, R12, #0xFF0000 FFFF0348 LDR R2, [R0,#0x40] FFFF034C MOV R1, R1,LSR#8 FFFF0350 AND R3, R12, #0xFF00 FFFF0354 ORR R1, R1, R12,LSR#24 FFFF0358 ORR R1, R1, R3,LSL#8 FFFF035C AND R3, R2, #0xFF0000 FFFF0360 MOV R3, R3,LSR#8 FFFF0364 ORR R3, R3, R2,LSR#24 FFFF0368 AND R0, R2, #0xFF00 FFFF036C ORR R3, R3, R0,LSL#8 FFFF0370 CMP R12, R2 FFFF0374 ORR R12, R1, R12,LSL#24 FFFF0378 ORR R2, R3, R2,LSL#24 FFFF037C EOR R12, R12, R2 FFFF0380 SUB R1, R12, #1 FFFF0384 BEQ loc_FFFF03A0 FFFF0388 MOV R3, R12,LSL#20 FFFF038C MOV R3, R3,LSR#20 FFFF0390 MOV R2, R12,LSR#16 FFFF0394 TST R1, R12 FFFF0398 EOR R3, R2, R3 FFFF039C BNE uncorrectable_ecc_error FFFF03A0 loc_FFFF03A0 ; CODE XREF: main+27C main+3B4 main+3BC FFFF03A0 ADD R7, R7, #1 FFFF03A4 CMP R7, #4 FFFF03A8 ADD R5, R5, #0x200 FFFF03AC BCC calc_ecc FFFF03B0 MOV R1, #0x98000000 FFFF03B4 ADD R2, R1, #0x1040 FFFF03B8 MOV R3, #0xD000000 FFFF03BC CMP R4, #1 FFFF03C0 ADD R2, R2, #0x3F FFFF03C4 ADD R3, R3, #0x20000 FFFF03C8 ADDEQ R2, R1, #0x7F FFFF03CC STR R2, [R3] FFFF03D0 loc_FFFF03D0 ; CODE XREF: main+1F8 main+200 FFFF03D0 MOVL R2, 0xD030000 ; D030000 = SHA1 HW FFFF03D8 loc_FFFF03D8 ; CODE XREF: main+2D8 FFFF03D8 LDR R3, [R2] FFFF03DC CMP R3, #0 ; wait for SHA1 non-busy status FFFF03E0 BLT loc_FFFF03D8 FFFF03E4 CMP R4, #1 FFFF03E8 MOVHI R3, #0x8000001F FFFF03EC ADD R4, R4, #1 FFFF03F0 STRHI R3, [R2] ; update SHA1 context FFFF03F4 CMP R4, #48 FFFF03F8 BLS boot1_read_loop FFFF03FC MOVL R2, 0xD030000 FFFF0404 done_reading_boot1 ; CODE XREF: main+304 FFFF0404 LDR R3, [R2] FFFF0408 CMP R3, #0 ; wait for SHA1 non-busy status FFFF040C BLT done_reading_boot1 FFFF0410 SUB R3, R11, #0x54 ; Was OTP hash zero? FFFF0414 LDR R3, [R3] FFFF0418 CMP R3, #0 FFFF041C BEQ jump_boot1 FFFF0420 MOVL R0, 0xD030000 FFFF0428 ADD R0, R0, #8 FFFF042C MOV R1, #0 FFFF0430 SUB R2, R11, #0x28 FFFF0434 loc_FFFF0434 ; CODE XREF: main+340 FFFF0434 LDR R3, [R0,R1,LSL#2] FFFF0438 ADD R1, R1, #1 FFFF043C CMP R1, #4 FFFF0440 STR R3, [R2,#-0x28] FFFF0444 ADD R2, R2, #4 FFFF0448 BLS loc_FFFF0434 FFFF044C SUB R0, R11, #0x28 FFFF0450 MOV R1, #4 FFFF0454 compare_hashes ; CODE XREF: main+364 FFFF0454 LDR R2, [R0,#-0x14] FFFF0458 LDR R3, [R0,#-0x28] FFFF045C CMP R2, R3 FFFF0460 MOVNE R9, #1 FFFF0464 SUBS R1, R1, #1 FFFF0468 ADD R0, R0, #4 FFFF046C BPL compare_hashes FFFF0470 CMP R9, #0 FFFF0474 BNE hash_fail FFFF0478 jump_boot1 ; CODE XREF: main+314 main+3D8 FFFF0478 MOV R0, #0xA FFFF047C BL debug_port_output ; output 0x0A FFFF0480 MOV R0, #0x88 FFFF0484 BL debug_port_output ; output 0x88 FFFF0488 LDR PC, =0xFFF00000 ; jump to BOOT1 (this is aliased to 0x0D400000) FFFF048C ; --------------------------------------------------------------------------- FFFF048C SUB SP, R11, #0x28 ; return code generated by compiler FFFF0490 LDMFD SP, {R4-R11,SP,PC}; (unreachable) FFFF0494 ; --------------------------------------------------------------------------- FFFF0494 uncorrectable_ecc_error ; CODE XREF: main+294 FFFF0494 BIC R1, R2, #7 FFFF0498 MOV R1, R1,LSL#20 FFFF049C CMP R3, R10 FFFF04A0 MOV R1, R1,LSR#20 FFFF04A4 AND R12, R2, #7 FFFF04A8 LDREQB R2, [R5,R1,ASR#3] FFFF04AC MOVEQ R3, #1 FFFF04B0 EOREQ R2, R2, R3,LSL R12 FFFF04B4 MOV R0, #0xF1 ; error F1 FFFF04B8 STREQB R2, [R5,R1,ASR#3] FFFF04BC BEQ loc_FFFF03A0 FFFF04C0 BL panic ; panic code F1 = ECC failure FFFF04C4 B loc_FFFF03A0 FFFF04C8 ; --------------------------------------------------------------------------- FFFF04C8 otp_hash_not_empty ; CODE XREF: main+154 FFFF04C8 MOV R2, #1 FFFF04CC SUB R3, R11, #0x54 FFFF04D0 STR R2, [R3] ; set a flag indicating that the otp hash is valid FFFF04D4 B loc_FFFF0268 FFFF04D8 ; --------------------------------------------------------------------------- FFFF04D8 hash_fail ; CODE XREF: main+36C FFFF04D8 MOV R0, #0xF2 ; error F2 = OTP mismatch FFFF04DC BL panic FFFF04E0 B jump_boot1 FFFF04E0 ; --------------------------------------------------------------------------- FFFF04E4 off_FFFF04E4 DCD boot1_key ; DATA XREF: main+30 FFFF04E8 off_FFFF04E8 DCD boot1_iv ; DATA XREF: main+58 FFFF04EC kSHA1_0 DCD 0x67452301 ; DATA XREF: main+74 FFFF04F0 kSHA1_1 DCD 0xEFCDAB89 ; DATA XREF: main+84 FFFF04F4 kSHA1_2 DCD 0x98BADCFE ; DATA XREF: main+98 FFFF04F8 kSHA1_3 DCD 0x10325476 ; DATA XREF: main+A0 FFFF04FC kSHA1_4 DCD 0xC3D2E1F0 ; DATA XREF: main+A8 FFFF0500 boot1_entrypt DCD 0xFFF00000 ; DATA XREF: main+380 FFFF0504 DCB 0 FFFF0505 a_GCCGNU3_4_3 DCB "GCC: (GNU) 3.4.3",0 ; garbage inserted by compiler lol? FFFF0516 DCB 0, 0 FFFF0518 ; =============== S U B R O U T I N E ======================================= FFFF0518 unused1 FFFF0518 BIC R0, R0, #0x35000000 FFFF051C BIC R0, R0, #0x10000 FFFF0520 MOVL R3, 0xFFFFFFC FFFF0524 SUB R3, R3, #0x2BC0000 FFFF0528 ORR R0, R0, #0xCA000000 FFFF052C SUB R3, R3, #0x28000 FFFF0530 ORR R0, R0, #0xFE0000 FFFF0534 STR R0, [R3] FFFF0538 MOV R0, #0 FFFF053C B unused11 FFFF053C ; End of function unused1 FFFF0540 ; =============== S U B R O U T I N E ======================================= FFFF0540 unused2 FFFF0540 BIC R0, R0, #0x45000000 FFFF0544 BIC R0, R0, #0x2F0000 FFFF0548 MOVL R3, 0xFFFFFFC FFFF054C SUB R3, R3, #0x2BC0000 FFFF0550 ORR R0, R0, #0xBA000000 FFFF0554 SUB R3, R3, #0x28000 FFFF0558 ORR R0, R0, #0xD00000 FFFF055C STR R0, [R3] FFFF0560 MOV R0, #1 FFFF0564 B unused12 FFFF0564 ; End of function unused2 FFFF0568 ; =============== S U B R O U T I N E ======================================= FFFF0568 unused3 FFFF0568 STR R1, [R0] FFFF056C BX LR FFFF056C ; End of function unused3 FFFF0570 ; =============== S U B R O U T I N E ======================================= FFFF0570 unused4 FFFF0570 LDR R0, [R0] FFFF0574 BX LR FFFF0574 ; End of function unused4 FFFF0578 ; =============== S U B R O U T I N E ======================================= FFFF0578 unused5 FFFF0578 STRH R1, [R0] FFFF057C BX LR FFFF057C ; End of function unused5 FFFF0580 ; =============== S U B R O U T I N E ======================================= FFFF0580 unused6 FFFF0580 LDRH R0, [R0] FFFF0584 BX LR FFFF0584 ; End of function unused6 FFFF0588 ; =============== S U B R O U T I N E ======================================= FFFF0588 delay ; CODE XREF: panic+20 panic+34 FFFF0588 CMP R0, #0 FFFF058C BXEQ LR FFFF0590 loc_FFFF0590 ; CODE XREF: delay+C FFFF0590 SUBS R0, R0, #1 FFFF0594 BNE loc_FFFF0590 FFFF0598 BX LR FFFF0598 ; End of function delay FFFF059C ; =============== S U B R O U T I N E ======================================= FFFF059C unused7 FFFF059C STMFD SP!, {R0-R3} FFFF05A0 ADD SP, SP, #0x10 FFFF05A4 RET FFFF05A4 ; End of function unused7 FFFF05A8 ; =============== S U B R O U T I N E ======================================= FFFF05A8 unused8 FFFF05A8 STMFD SP!, {R0-R3} FFFF05AC ADD SP, SP, #0x10 FFFF05B0 RET FFFF05B0 ; End of function unused8 FFFF05B4 ; =============== S U B R O U T I N E ======================================= FFFF05B4 unused9 FFFF05B4 STMFD SP!, {R0-R3} FFFF05B8 ADD SP, SP, #0x10 FFFF05BC RET FFFF05BC ; End of function unused9 FFFF05C0 ; =============== S U B R O U T I N E ======================================= FFFF05C0 ; int __stdcall memset(void *dest, int c, int len) FFFF05C0 memset ; CODE XREF: main+114 FFFF05C0 SUB R2, R2, #1 FFFF05C4 CMN R2, #1 FFFF05C8 MOV R3, R0 FFFF05CC BXEQ LR FFFF05D0 loc_FFFF05D0 ; CODE XREF: memset+1C FFFF05D0 SUB R2, R2, #1 FFFF05D4 CMN R2, #1 FFFF05D8 STRB R1, [R3],#1 FFFF05DC BNE loc_FFFF05D0 FFFF05E0 BX LR FFFF05E0 ; End of function memset FFFF05E4 ; =============== S U B R O U T I N E ======================================= FFFF05E4 ; Attributes: noreturn FFFF05E4 unused10 ; CODE XREF: unused11+4, unused12+4 FFFF05E4 MCR p15, 0, R0,c7,c0, 4 FFFF05E8 hang ; CODE XREF: unused10:hang FFFF05E8 B hang FFFF05E8 ; End of function unused10 FFFF05EC ; =============== S U B R O U T I N E ======================================= FFFF05EC unused11 ; CODE XREF: unused1+24 FFFF05EC MOV R0, #0 FFFF05F0 BL unused10 FFFF05F0 ; End of function unused11 FFFF05F4 ; =============== S U B R O U T I N E ======================================= FFFF05F4 unused12 ; CODE XREF: unused2+24 FFFF05F4 MOV R0, #1 FFFF05F8 BL unused10 FFFF05F8 ; End of function unused12 FFFF05F8 ; --------------------------------------------------------------------------- FFFF05FC boot1_key DCD 0x9258A752,0x64960D82,0x676F9044,0x56882A73 FFFF05FC ; DATA XREF: main:off_FFFF04E4 FFFF060C boot1_iv DCD 0, 0, 0, 0 ; DATA XREF: main:off_FFFF04E8 FFFF1FFC DCD 0xABAB0101 ; boot0_version FFFF1FFC ; boot0 ends