Very early initial support for RPi 5 based on dev branch of circle.

src/config.txt

@@ -10,7 +10,7 @@ gpu_mem=16
 disable_overscan=0
 
 #
-# Use 64-bit for RPi 3, 4, 400 and Zero 2, and 32-bit for all other models
+# Use 64-bit for RPi 3, 4, 400, 5 and Zero 2, and 32-bit for all other models
 #
 
 [pi3]
@@ -24,3 +24,7 @@ kernel=kernel8-rpi4.img
 # Zero 2 W
 [pi02]
 arm_64bit=1
+
+[pi5]
+arm_64bit=1
+kernel=kernel_2712.img

src/kernel.cpp

@@ -68,8 +68,12 @@ bool CKernel::Initialize (void)
 	
 	if (m_Config.GetUSBGadgetMode())
 	{
+#if RASPPI==5
+#warning No support for USB Gadget Mode on RPI 5 yet
+#else
 		// Run the USB stack in USB Gadget (device) mode
 		m_pUSB = new CUSBMiniDexedMIDIGadget (&mInterrupt);
+#endif
 	}
 	else
 	{

src/minidexed.cpp

@@ -103,7 +103,11 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
 		
 	if (pConfig->GetUSBGadgetMode())
 	{
+#if RASPPI==5
+		LOGNOTE ("USB Gadget (Device) Mode NOT supported on RPI 5");
+#else
 		LOGNOTE ("USB In Gadget (Device) Mode");
+#endif
 	}
 	else
 	{
@@ -128,6 +132,9 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
 	}
 	else if (strcmp (pDeviceName, "hdmi") == 0)
 	{
+#if RASPPI==5
+		LOGNOTE ("HDMI mode NOT supported on RPI 5.");
+#else
 		LOGNOTE ("HDMI mode");
 
 		m_pSoundDevice = new CHDMISoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
@@ -136,6 +143,7 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
 		// The channels are swapped by default in the HDMI sound driver.
 		// TODO: Remove this line, when this has been fixed in the driver.
 		m_bChannelsSwapped = !m_bChannelsSwapped;
+#endif
 	}
 	else
 	{

src/usbminidexedmidigadget.h

@@ -22,6 +22,23 @@
 #ifndef _usbminidexedmidigadget_h
 #define _usbminidexedmidigadget_h
 
+#if RASPPI==5
+#include <circle/sysconfig.h>
+#include <assert.h>
+
+#warning No support for USB Gadget Mode on RPI 5 yet
+class CUSBMiniDexedMIDIGadget
+{
+public:
+	CUSBMiniDexedMIDIGadget (CInterruptSystem *pInterruptSystem)
+	{
+	}
+
+	~CUSBMiniDexedMIDIGadget (void)
+	{
+	}
+};
+#else
 #include <circle/usb/gadget/usbmidigadget.h>
 #include <circle/usb/gadget/usbmidigadgetendpoint.h>
 #include <circle/sysconfig.h>
@@ -82,5 +99,6 @@ protected:
 		return CUSBMIDIGadget::GetDescriptor(wValue, wIndex, pLength);
 	}
 };
+#endif
 
 #endif

submod.sh

@@ -6,13 +6,13 @@ git submodule update --init --recursive
 #
 # Use fixed master branch of circle-stdlib then re-update
 cd circle-stdlib/
-git checkout 695ab4a
+git checkout 3bd135d
 git submodule update --init --recursive
 cd -
 #
 # Optional update submodules explicitly
 cd circle-stdlib/libs/circle
-git checkout fe09c4b
+git checkout 4b3e06f
 cd -
 cd circle-stdlib/libs/circle-newlib
 #git checkout develop