X-Git-Url: http://git.joshuawise.com/firearm.git/blobdiff_plain/35c310849a3685b823e06456e220e5647135fe42..1e7ff543e49341fedea742d7b8b674111d852748:/tests/testbench.c

diff --git a/tests/testbench.c b/tests/testbench.c
index 0c1cb77..f078ecd 100644
--- a/tests/testbench.c
+++ b/tests/testbench.c
@@ -1,5 +1,14 @@
 extern void putc(unsigned char c);
 
+int serial_getc (void)
+{
+	int c;
+	do
+		asm volatile("mrc 5, 0, %0, c1, c1, 1" : "=r"(c));
+	while (!(c & 0x100));
+	return c & 0xFF;
+}
+
 void puts(unsigned char *s)
 {
 	while (*s)
@@ -93,10 +102,30 @@ void ldm_tester()
 		puts("PASS\n");
 }
 
+void cellularram()
+{
+	volatile int *p = 0x80010000;
+	
+	puts("[writing] ");
+	p[0] = 0x12345678;
+	p[1] = 0x87654321;
+	p[2] = 0xAAAA5555;
+	p[3] = 0x5555AAAA;
+	puts("[cache flush] ");
+	p[0x1000] = 0x00000000;
+	puts("[reading: ");
+	puthex(p[0]);
+	puthex(p[1]);
+	puthex(p[2]);
+	puthex(p[3]);
+	puts("]\n");
+}
+
 struct tests tlist[] = {
 	{"ldm pc/mul", ldm_tester},
 	{"fact", facttest},
 	{"j4cbo", j4cbo},
+	{"cellularram", cellularram},
 	{"ack", acktest},
 	{"miniblarg", testmain},
 	{"corecurse", corecurse},
@@ -115,7 +144,9 @@ int main()
 		puts(": ");
 		t->test();
 	}
-	puts("Done!\n");
+	puts("Done! Echoing characters.\n");
 	
+	while (1)
+		putc(serial_getc());
 	return 0;
 }