Difference between revisions of "Bootrom 240.4"

Latest revision as of 13:54, 17 September 2021

This is an S5L8720 bootrom revision for iPod touch (2nd generation) devices sold between September 2009 and September 2009. It is located at 0x0 and uses SDRAM @ 0x22000000 for global variables. It patches the Pwnage exploit, as the bootrom now properly checks LLB's signature. This bootrom is, however, vulnerable to the 0x24000 Segment Overflow and the usb_control_msg(0xA1, 1) Exploit.

For "Symbols", see also Address Mapping.

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+This is an [[S5L8720]] [[bootrom]] revision for [[N72AP|iPod touch (2nd generation)]] devices sold between {{date|2009|09}} and {{date|2009|09}}. It is located at 0x0 and uses SDRAM @ 0x22000000 for global variables.  It patches the [[Pwnage]] exploit, as the bootrom now properly checks [[LLB]]'s signature. This bootrom is, however, vulnerable to the [[0x24000 Segment Overflow]] and the [[usb_control_msg(0xA1, 1) Exploit]].
-{{DISPLAYTITLE:iBoot-240.4}}
-[[S5L8720]] [[bootrom]] revision for [[N72ap|iPod touch 2G]] devices sold between September 2008 and September 2009. It patches the [[Pwnage]] exploit, as the bootrom now properly checks [[LLB]]'s signature. This bootrom is, however, vulnerable to the [[0x24000 Segment Overflow]] and the [[usb_control_msg(0xA1, 1) Exploit]].
+== MMU ==
+* '''0x0 - 0x40000000''': mapped as uncacheable and unbufferable
+* '''0x0 - 0x100000 (ROM)''': remapped as cacheable and bufferable
+* '''0x20000000 - 0x20100000 (ROM)''': remapped as cacheable and bufferable
+* '''0x22000000 - 0x22100000 (SDRAM)''': remapped as cacheable and bufferable
+For "Symbols", see also [[Address Mapping]].
 [[Category:Bootrom]]