bpmpfw uart changes

Source/hoc-clk/bpmpfw/source/main.cpp

@@ -43,7 +43,7 @@ namespace {
     /* Deinit MMU otherwise sleep will fatal. */
     bpmpMmu::Disable();
     info.magic = 0x0;
-    printf("[hoc-bpmpfw]: Halting...\n");
+    UartPutsForce("[hoc-bpmpfw]: Halting...\n");
     for (;;)
         ;
 }
@@ -91,7 +91,7 @@ extern "C" void main() {
 
     InitializeLibc();
 
-    printf("[hoc-bpmpfw]: Starting bpmpfw\n");
+    UartPutsForce("[hoc-bpmpfw]: Starting bpmpfw\n");
 
     HocClkBpmpSharedInfo &info = SharedInfo();
     memset(&info, 0, sizeof(info));
@@ -104,7 +104,7 @@ extern "C" void main() {
     /* If the main loop exits then it is a panic or invalid state */
     MainLoop(info);
 
-    printf("[hoc-bpmpfw]: PANIC\n");
+    UartPutsForce("[hoc-bpmpfw]: PANIC\n");
     
     /* Kill execution */    
     _panic_reboot();

Source/hoc-clk/bpmpfw/source/regs.cpp

@@ -33,7 +33,7 @@
     }
 }
 
-bool g_uartLoggingEnabled = true;
+bool g_uartLoggingEnabled = false;
 
 void UartPutc(char c) {
     if (!g_uartLoggingEnabled) {
@@ -64,3 +64,14 @@ void UartPutHex32(u32 v) {
         UartPutc(digits[(v >> i) & 0xF]);
     }
 }
+
+void UartPutsForce(const char *s) {
+    while (*s) {
+        while (!(MMIO32(UartBBase + UartLsr) & UartLsrThre))
+            ;
+        MMIO32(UartBBase + UartThr) = static_cast<u32>(static_cast<u8>(*s++));
+    }
+
+    while (!(MMIO32(UartBBase + UartLsr) & UartLsrTmty))
+        ;
+}

Source/hoc-clk/bpmpfw/source/regs.hpp

@@ -54,3 +54,5 @@ void UartFlush();
 void UartPuts(const char *s);
 
 void UartPutHex32(u32 v);
+
+void UartPutsForce(const char *s);