hello_world: Debug print the gitinfo syscon register

.oOOo.
 ."      ".
 ;  .mw.  ;   Microwatt, it works.
  . '  ' .
   \ || /     HDL Git SHA1: 211d23c4ad4fb5-dirty
    ;..;
    ;..;
    `ww'

Signed-off-by: Dan Horák <dan@danny.cz>
Signed-off-by: Michael Neuling <mikey@neuling.org>

hello_world/Makefile

@@ -25,7 +25,8 @@ hello_world.bin: hello_world.elf
 	$(OBJCOPY) -O binary $^ $@
 
 hello_world.hex: hello_world.bin
-	../scripts/bin2hex.py $^ > $@
+	../scripts/bin2hex.py $^ > hello_world.hex.tmp
+	mv -f hello_world.hex.tmp hello_world.hex
 
 clean:
 	@rm -f *.o hello_world.elf hello_world.bin hello_world.hex

hello_world/hello_world.c

@@ -2,24 +2,46 @@
 #include <stdbool.h>
 
 #include "console.h"
+#include "io.h"
+#include "microwatt_soc.h"
 
-static char mw_logo[] =
+static char mw_logo1[] =
-
 "\n"
 "   .oOOo.     \n"
 " .\"      \". \n"
 " ;  .mw.  ;   Microwatt, it works.\n"
 "  . '  ' .    \n"
-"   \\ || /    \n"
+"   \\ || /     HDL Git SHA1: ";
+
+static char mw_logo2[] =
+"\n"
 "    ;..;      \n"
 "    ;..;      \n"
-"    `ww'   \n";
+"    `ww'      \n\n";
 
 int main(void)
 {
+	uint64_t gitinfo;
+	uint8_t c;
+        bool dirty;
+
 	console_init();
 
-	puts(mw_logo);
+	puts(mw_logo1);
+
+	gitinfo = readq(SYSCON_BASE + SYS_REG_GIT_INFO);
+        dirty = gitinfo >> 63;
+	for (int i = 0; i < 14; i++) {
+		c = (gitinfo >> 52) & 0xf;
+		if (c >= 10)
+                        putchar(0x61 + c - 10); // a-f
+                else
+                        putchar(0x30 + c); // 0-9
+		gitinfo <<= 4;
+	}
+        if (dirty)
+                puts("-dirty");
+	puts(mw_logo2);
 
 	while (1) {
 		unsigned char c = getchar();

hello_world/hello_world.hex

@@ -48,11 +48,11 @@ a64b5a7d14004a39
 782107c660210000
 6021398064210000
 f801ffe138000000
-3d8000007c1243a6
+618c00003d800000
-798c07c6618c0000
+658c0000798c07c6
-618c1000658c0000
+7d8903a6618c1000
-4e8004217d8903a6
+000002004e800421
-4800000000000200
+0000000048000000
 0000000000000000
 0000000000000000
 0000000000000000
@@ -511,172 +511,172 @@ f801ffe138000000
 0000000000000000
 0000000000000000
 384298003c400001
-fbe1fff87c0802a6
+4800042d7c0802a6
-f821ffd1f8010010
+3fe0c000f821ffc1
-60000000480001ed
+7bff002063ff0050
+6000000048000269
+3862803060000000
+60000000480001d1
+7fe0feea7c0004ac
+7bfd0fe03bc0000e
+280300097be36720
+386300574081007c
+7bff26e47c6307b4
+6000000048000119
+4082ffdc37deffff
+418200142c3d0000
+38637c303c62ffff
+6000000048000181
 3862800060000000
-6000000048000155
+6000000048000171
-6000000048000049
+6000000048000051
 5463063e7c7f1b78
-480000b957ff063e
+480000cd57ff063e
 2c1f000d60000000
 3860000a4082ffe0
-60000000480000a5
+60000000480000b9
-000000004bffffd0
+386300304bffffd0
-0000018001000000
+000000004bffff88
+0000038001000000
 384298003c400001
 8922810860000000
 3942810060000000
-418200302c090000
+418200382c090000
 39290014e92a0000
 7d204eaa7c0004ac
 4182ffec71290001
-7c0004ace86a0000
+e862810060000000
-5463063e7c601eaa
+7c601eaa7c0004ac
+7c6307b45463063e
 e92a00004e800020
 7c0004ac39290010
 712900017d204eea
-e86a00004082ffec
+600000004082ffec
-7c0004ac38630008
+38630008e8628100
-4bffffd07c601eea
+7c601eea7c0004ac
-0000000000000000
+000000004bffffc8
-3c40000100000000
+0000000000000000
-6000000038429800
+384298003c400001
-6000000089228108
+8922810860000000
-2c09000039428100
+3942810060000000
-e92a00004182002c
+418200302c090000
-7c0004ac39290014
+39290014e92a0000
-712900207d204eaa
+7d204eaa7c0004ac
-e92a00004182ffec
+4182ffec71290020
+e922810060000000
 7c604faa7c0004ac
 e92a00004e800020
 7c0004ac39290010
 712900087d204eea
 5469063e4082ffec
-7c0004ace94a0000
+e942810060000000
-4e8000207d2057ea
+7d2057ea7c0004ac
-0000000000000000
+000000004e800020
-3c40000100000000
+0000000000000000
-7c0802a638429800
+384298003c400001
-fbc1fff0fbe1fff8
+fbe1fff87c0802a6
-f80100103be3ffff
+3be3fffffbc1fff0
-8fdf0001f821ffd1
+f821ffd1f8010010
-408200102c3e0000
+2c1e00008fdf0001
-3860000038210030
+3821003040820010
-281e000a480001e8
+4800022038600000
-3860000d4082000c
+4082000c2c1e000a
-7fc3f3784bffff45
+4bffff3d3860000d
-4bffffd04bffff3d
+4bffff357fc307b4
-0100000000000000
+000000004bffffd0
-7c691b7800000280
+0000028001000000
-7d4918ae38600000
+386000007c691b78
-4d8200202c0a0000
+2c0a00007d4918ae
-4bfffff038630001
+386300014d820020
-0000000000000000
+000000004bfffff0
-3c40000100000000
+0000000000000000
-3d40c00038429800
+384298003c400001
-794a0020614a0020
+612900203d20c000
-7d4056ea7c0004ac
-794a06003d20c000
-7929002061290008
-7d204eea7c0004ac
-4182001871290020
-612900403d20c000
 7c0004ac79290020
-7929f8047d204eea
+3d40c0007d204eea
-79290fc33d00c000
+614a000879290600
-7908002061082000
+7c0004ac794a0020
-f902810060000000
+714a00207d4056ea
-610820003d00001c
+614a20003d40c000
-418200847d4a4392
+40820040794a0020
-3920000160000000
+f942810060000000
-3d00c00099228108
+6000000039400000
-3920ff806108200c
+3d40001c99428108
-7c0004ac79080020
+7d295392614a2000
-e92281007d2047aa
+614a20183d40c000
-7d404faa7c0004ac
+3929ffff794a0020
-794ac202e9228100
+7d2057ea7c0004ac
-7c0004ac39290004
+3d00c0004e800020
+7908002061080040
+7d0046ea7c0004ac
+60000000790807e3
+3d40001cf9428100
+7d495392614a2000
+600000004182ffa0
+9922810839200001
+6108200c3d00c000
+790800203920ff80
+7d2047aa7c0004ac
+7c0004ace9228100
 e92281007d404faa
-3929000c39400003
+39290004794ac202
 7d404faa7c0004ac
-39290010e9228100
+39400003e9228100
+7c0004ac3929000c
+e92281007d404faa
+7c0004ac39290010
+e92281007d404faa
+3929000839400007
 7d404faa7c0004ac
-39400007e9228100
-7c0004ac39290008
-4e8000207d404faa
-394affff60000000
-3d20c00099228108
-7929002061292018
-7d404fea7c0004ac
 000000004e800020
 0000000000000000
 384298003c400001
 8922810860000000
 600000002c090000
-41820024e9228100
+41820028e9228100
-78840e282c230000
+5484083c2c230000
-6084000141820008
+418200087c8a2378
-7c0004ac39290004
+39290004608a0001
-4e8000207c804faa
+7d404faa7c0004ac
-418200082c240000
+2c2400004e800020
-3929002060630002
+6063000241820008
-7c604fea7c0004ac
+7c0004ac39290020
-000000004e800020
+4e8000207c604fea
-0000000000000000
+0000000000000000
-e8010010ebc1fff0
+6000000000000000
-7c0803a6ebe1fff8
+000079747269642d
-000000104e800020
+fbc1fff0fba1ffe8
-00527a0100000000
+f8010010fbe1fff8
-00010c1b01417804
+ebc1fff04e800020
-0000001800000018
+ebe1fff8e8010010
-00000070fffffc40
+4e8000207c0803a6
-9f7e4111300e4600
+0000000000000010
-0000001000000001
+0141780400527a01
-00527a0100000000
+0000002000010c1b
-00010c1b01417804
+fffffb8400000018
-0000001800000010
+41094300000000e0
-00000084fffffc80
+019f029e039d4100
-0000001000000000
+0000400e417e4111
-fffffcf00000002c
+0000000000000010
-0000000000000080
+0141780400527a01
-0000004000000028
+0000001000010c1b
-00000060fffffd5c
+fffffc2c00000018
-9e019f0041094500
+0000000000000090
-447e4111300e4302
+0000002c00000010
-4106dedf42000e0a
+00000088fffffca8
-000000100000000b
+0000002800000000
-fffffd900000006c
+fffffd1c00000040
-0000000000000028
+4109450000000060
-0000008000000010
+300e43029e019f00
-0000012cfffffda4
+42000e0a447e4111
+0000000b4106dedf
+0000006c00000010
+00000028fffffd50
 0000001000000000
-fffffebc00000094
+fffffd6400000080
-0000000000000068
+0000000000000140
-0000000000000000
+0000009400000010
-0000000000000000
+0000006cfffffe90
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
-0000000000000000
 0000000000000000
 0000000000000000
 0000000000000000
@@ -766,6 +766,12 @@ fffffebc00000094
 0000000000000000
 0000000000000000
 0000000000000000
+2e2e3b202020200a
+0a2020202020203b
+3b2e2e3b20202020
+200a202020202020
+2027777760202020
+000a0a2020202020
 4f4f6f2e2020200a
 0a20202020202e6f
 2020202020222e20
@@ -777,9 +783,6 @@ fffffebc00000094
 27202027202e2020
 200a202020202e20
 2f207c7c205c2020
-2020200a20202020
+4c44482020202020
-2020203b2e2e3b20
+4148532074694720
-202020200a202020
+0000000000203a31
-202020203b2e2e3b
-60202020200a2020
-000a202020277777