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DSi: add option to boot the full boot ROMs (#1581)

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* DSi: add option to boot the full boot ROMs

added a config option for this so that this can be enabled or disabled

also added IO regs for DSi GPIO, but those don't do anything yet.

* reset GPIO regs on reset
This commit is contained in:
PoroCYon
2023-07-16 02:40:50 +02:00
committed by GitHub
parent cf7375f9ea
commit fbb41bd73d
8 changed files with 435 additions and 288 deletions
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8
src/SPI.cpp
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@ -119,6 +119,8 @@ u32 FixFirmwareLength(u32 originalLength)
void LoadDefaultFirmware()
{
Log(LogLevel::Debug, "Using default firmware image...\n");
FirmwareLength = 0x20000;
Firmware = new u8[FirmwareLength];
memset(Firmware, 0xFF, FirmwareLength);
@ -132,6 +134,10 @@ void LoadDefaultFirmware()
Firmware[0x2F] = 0x0F;
Firmware[0x1FD] = 0x01;
Firmware[0x1FE] = 0x20;
Firmware[0x2FF] = 0x80; // boot0: use NAND as stage2 medium
// these need to be zero (part of the stage2 firmware signature!)
memset(&Firmware[0x22], 0, 8);
}
else
{
@ -338,6 +344,8 @@ void Reset()
else
FirmwarePath = Platform::GetConfigString(Platform::FirmwarePath);
Log(LogLevel::Debug, "SPI firmware: loading from file %s\n", FirmwarePath.c_str());
bool makecopy = false;
std::string origpath = FirmwarePath;
FirmwarePath += Platform::InstanceFileSuffix();