https://www.theiphonewiki.com/w/api.php?action=feedcontributions&feedformat=atom&user=CPICH 2026-05-24T15:05:27Z User contributions MediaWiki 1.31.14 https://www.theiphonewiki.com/w/index.php?title=Porting_OpeniBoot&diff=6242 2010-04-24T04:20:50Z

<p>CPICH: </p> <hr /> <div>This page should act as temporary place holder for any technical information found regarding porting Openiboot to newer devices.<br /> <br /> == 3GS ==<br /> <br /> ===='''Reboot (WDT)'''====<br /> There is not a specific WDT device in 3GS device tree. The reboot sequence instead accesses several registers in PMGR.<br /> <br /> LDR R1, =0xBF10021C<br /> LDR R3, =0xBF100214<br /> MOVS R0, #0<br /> MOVS R2, #1<br /> STR R0, [R1]<br /> STR R2, [R3]<br /> LDR R2, =0xBF100210<br /> MOV.W R3, #0x80000000<br /> STR R3, [R2]<br /> MOVS R3, #4<br /> STR R3, [R1]<br /> STR R0, [R2]<br /> <br /> ===='''MIU'''====<br /> The MIU setup is found in the miu_init() in the LLB image instead. The register that contains MIU setting is 0xBF100000 (PMGR base address). The bit mask is now 3 instead of 7 for most other devices before this. Assume setting for map to 0x0 is 1, otherwise 2.<br /> <br /> ROM:84006F44 CBZ R0, loc_84006F4C<br /> ROM:84006F46 CMP R0, #1<br /> ROM:84006F48 BNE loc_84006F68<br /> ROM:84006F4A B loc_84006F5A<br /> ROM:84006F4C loc_84006F4C <br /> ROM:84006F4C LDR R2, =0xBF100000<br /> ROM:84006F4E LDR R3, [R2]<br /> ROM:84006F50 BIC.W R3, R3, #3<br /> ROM:84006F54 ORR.W R3, R3, #1<br /> ROM:84006F58 B loc_84006F66<br /> ROM:84006F5A loc_84006F5A <br /> ROM:84006F5A LDR R2, =0xBF100000<br /> ROM:84006F5C LDR R3, [R2]<br /> ROM:84006F5E BIC.W R3, R3, #3<br /> ROM:84006F62 ORR.W R3, R3, #2<br /> ROM:84006F66<br /> ROM:84006F66 loc_84006F66 <br /> ROM:84006F66 STR R3, [R2]<br /> ROM:84006F68<br /> ROM:84006F68 loc_84006F68 <br /> ROM:84006F68 LDR R3, =0xBF100000<br /> ROM:84006F6A LDR R3, [R3]<br /> ROM:84006F6C BX LR</div>

CPICH https://www.theiphonewiki.com/w/index.php?title=Porting_OpeniBoot&diff=6222 2010-04-23T22:38:43Z

<p>CPICH: </p> <hr /> <div>This page should act as temporary place holder for any technical information found regarding porting Openiboot to newer devices.<br /> <br /> == 3GS ==<br /> <br /> ===='''Reboot (WDT)'''====<br /> There is not a specific WDT device in 3GS device tree. The reboot sequence instead accesses several registers in PMGR.<br /> <br /> LDR R1, =0xBF10021C<br /> LDR R3, =0xBF100214<br /> MOVS R0, #0<br /> MOVS R2, #1<br /> STR R0, [R1]<br /> STR R2, [R3]<br /> LDR R2, =0xBF100210<br /> MOV.W R3, #0x80000000<br /> STR R3, [R2]<br /> MOVS R3, #4<br /> STR R3, [R1]<br /> STR R0, [R2]</div>

CPICH https://www.theiphonewiki.com/w/index.php?title=Porting_OpeniBoot&diff=6220 2010-04-23T22:33:40Z

<p>CPICH: New page: This page should act as temporary place holder for any technical information found regarding porting Openiboot to newer devices. == 3GS == '''Reboot (WDT)'''. There is not a specific WDT...</p> <hr /> <div>This page should act as temporary place holder for any technical information found regarding porting Openiboot to newer devices.<br /> <br /> == 3GS ==<br /> <br /> '''Reboot (WDT)'''.<br /> There is not a specific WDT device in 3GS device tree. The reboot sequence instead accesses several registers in PMGR.<br /> <br /> LDR R1, =0xBF10021C<br /> LDR R3, =0xBF100214<br /> MOVS R0, #0<br /> MOVS R2, #1<br /> STR R0, [R1]<br /> STR R2, [R3]<br /> LDR R2, =0xBF100210<br /> MOV.W R3, #0x80000000<br /> STR R3, [R2]<br /> MOVS R3, #4<br /> STR R3, [R1]<br /> STR R0, [R2]</div>

CPICH