feat: Raspberry Pi 4/400 Bluetooth over mini UART (H4, Broadcom patchram, firmware mailbox BT_ON); move BT stack to Drivers/Bluetooth

kernel/src/Drivers/Serial/Uart.cpp

@@ -64,6 +64,7 @@ namespace Drivers::Serial {
     static volatile uint8_t* g_mmio = nullptr;
     static uint16_t g_port = 0;
     static uint32_t g_stride = 1;
+    static uint64_t g_consoleAddress = 0;
 
     static inline uint32_t Read32(uint64_t offset) {
         return *(volatile uint32_t*)(g_mmio + offset);
@@ -173,9 +174,14 @@ namespace Drivers::Serial {
                 return;
         }
 
+        g_consoleAddress = reg.Address;
         AttachSerialConsole(sink);
         KernelLogStream(OK, "Serial") << "Console on " << name << " at " << (isIo ? "port " : "")
             << "0x" << base::hex << reg.Address;
     }
 
+    uint64_t ConsoleAddress() {
+        return g_consoleAddress;
+    }
+
 }