Changes

===Stage 0x1D===

===Stage 0x1D===

boot0 uses EXI to capture events coming from surface mounted components (SMC). If a special button combo is being held (additional hardware may be required, like in the case of kiosk units), boot0 will attempt to load a recovery signed boot1 image from a SD card.

boot0 uses EXI to read events from the [[Hardware/RTC|RTC]]. If UNSTBL_PWR is set in RTC_CONTROL0, boot0 will attempt to load a recovery signed boot1 image from a SD card.

  // Send debug mark

  // Send debug mark

  SendGPIODebugOut(0x1D);

  SendGPIODebugOut(0x1D);

     u32 exi0_reply = *(u32 *)exi0_out_buf;

     u32 exi0_reply = *(u32 *)exi0_out_buf;

      

      

     // SD card button combo was pressed

     // UNSTBL_PWR bit is set in RTC_CONTROL0

     if ((exi0_reply << 0x14) < 0)

     if ((exi0_reply << 0x14) < 0)

       load_sd = true;

       load_sd = true;

  }

  }

   

   

  // No SD card combo, we're done

  // Nothing to do, skip the next stages

  if (!load_sd)

  if (!load_sd)

     goto exit;

     goto exit;