use git commit id as version

common/version.h

@@ -1,6 +0,0 @@
-#ifndef __VERSION_H
-#define __VERSION_H
-
-#define VERSION "2.0"
-
-#endif /* __VERSION_H */

misoclib/identifier/__init__.py

@@ -1,29 +1,21 @@
-import re
-
 from migen.fhdl.std import *
 from migen.bank.description import *
 
-def encode_version(version):
-	match = re.match("(\d+)\.(\d+)(\.(\d+))?(rc(\d+))?", version, re.IGNORECASE)
-	r = (int(match.group(1)) << 12) | (int(match.group(2)) << 8)
-	subminor = match.group(4)
-	rc = match.group(6)
-	if subminor:
-		r |= int(subminor) << 4
-	if rc:
-		r |= int(rc)
-	return r
+from misoclib.identifier import git
 
 class Identifier(Module, AutoCSR):
-	def __init__(self, sysid, version, frequency):
+	def __init__(self, sysid, frequency, revision=None):
 		self._r_sysid = CSRStatus(16)
-		self._r_version = CSRStatus(16)
+		self._r_revision = CSRStatus(32)
 		self._r_frequency = CSRStatus(32)
 		
 		###
 
+		if revision is None:
+			revision = git.get_id()
+
 		self.comb += [
 			self._r_sysid.status.eq(sysid),
-			self._r_version.status.eq(encode_version(version)),
+			self._r_revision.status.eq(revision),
 			self._r_frequency.status.eq(frequency)
 		]

misoclib/identifier/git.py

@@ -0,0 +1,5 @@
+import subprocess
+
+def get_id():
+	output = subprocess.check_output(["git", "rev-parse", "HEAD"]).decode("ascii")
+	return int(output[:8], 16)

software/bios/main.c

@@ -6,7 +6,6 @@
 #include <system.h>
 #include <id.h>
 #include <irq.h>
-#include <version.h>
 #include <crc.h>
 
 #include <hw/csr.h>
@@ -319,7 +318,7 @@ static void help(void)
 	puts("netboot    - boot via TFTP");
 	puts("serialboot - boot via SFL");
 	puts("flashboot  - boot from flash");
-	puts("version    - display version");
+	puts("revision   - display revision");
 }
 
 static char *get_token(char **str)
@@ -353,7 +352,7 @@ static void do_command(char *c)
 	else if(strcmp(token, "serialboot") == 0) serialboot();
 	else if(strcmp(token, "netboot") == 0) netboot();
 	
-	else if(strcmp(token, "version") == 0) puts(VERSION);
+	else if(strcmp(token, "revision") == 0) printf("%08x\n", GIT_ID);
 
 	else if(strcmp(token, "help") == 0) help();
 
@@ -401,14 +400,6 @@ static void crcbios(void)
 	}
 }
 
-static const char banner[] =
-	"\nMiSoC(tm) v"VERSION" BIOS   http://www.milkymist.org\n"
-	"(c) Copyright 2007-2013 Sebastien Bourdeauducq\n"
-	"Built "__DATE__" "__TIME__"\n\n"
-	"This program is free software: you can redistribute it and/or modify\n"
-	"it under the terms of the GNU General Public License as published by\n"
-	"the Free Software Foundation, version 3 of the License.";
-
 static void readstr(char *s, int size)
 {
 	char c[2];
@@ -494,7 +485,9 @@ int main(int i, char **c)
 	irq_setmask(0);
 	irq_setie(1);
 	uart_init();
-	puts(banner);
+	puts("\nMiSoC BIOS   http://www.milkymist.org\n"
+	"(c) Copyright 2007-2013 Sebastien Bourdeauducq");
+	printf("Revision %08x built "__DATE__" "__TIME__"\n\n", GIT_ID);
 	crcbios();
 	id_print();
 	ethreset();

software/common.mak

@@ -18,6 +18,8 @@ LD_quiet = @echo " LD " $@ && $(TARGET_PREFIX)ld
 OBJCOPY_quiet = @echo " OBJCOPY " $@ && $(TARGET_PREFIX)objcopy
 RANLIB_quiet = @echo " RANLIB  " $@ && $(TARGET_PREFIX)ranlib
 
+GIT_ID:=$(shell echo -e "from misoclib.identifier.git import get_id\nprint(hex(get_id()), end='')" | python)
+
 ifeq ($(V),1)
 	CC = $(CC_normal)
 	CX = $(CX_normal)
@@ -40,7 +42,7 @@ endif
 #
 INCLUDES = -I$(MSCDIR)/software/include/base -I$(MSCDIR)/software/include -I$(MSCDIR)/common
 COMMONFLAGS = -O3 -mbarrel-shift-enabled -mmultiply-enabled -mdivide-enabled -msign-extend-enabled \
-	-Wall -fno-builtin -nostdinc $(INCLUDES)
+	-Wall -fno-builtin -nostdinc -DGIT_ID=$(GIT_ID) $(INCLUDES)
 CFLAGS = $(COMMONFLAGS) -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes
 CXXFLAGS = $(COMMONFLAGS) -fno-exceptions -ffreestanding
 LDFLAGS = -nostdlib -nodefaultlibs

software/include/base/id.h

@@ -6,9 +6,6 @@ extern "C" {
 #endif
 
 void get_sysid_formatted(char *sysid);
-void get_soc_version(unsigned int *major, unsigned int *minor, unsigned int *subminor, unsigned int *rc);
-void get_soc_version_formatted(char *version);
-
 void id_print(void);
 
 #ifdef __cplusplus

software/libbase/id.c

@@ -2,7 +2,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <version.h>
 #include <id.h>
 
 void get_sysid_formatted(char *sysid)
@@ -12,36 +11,10 @@ void get_sysid_formatted(char *sysid)
 	sysid[2] = 0;
 }
 
-void get_soc_version(unsigned int *major, unsigned int *minor, unsigned int *subminor, unsigned int *rc)
-{
-	unsigned int id;
-
-	id = identifier_version_read();
-	*major = (id & 0xf000) >> 12;
-	*minor = (id & 0x0f00) >> 8;
-	*subminor = (id & 0x00f0) >> 4;
-	*rc = id & 0x000f;
-}
-
-void get_soc_version_formatted(char *version)
-{
-	unsigned int major, minor, subminor, rc;
-
-	get_soc_version(&major, &minor, &subminor, &rc);
-
-	version += sprintf(version, "%u.%u", major, minor);
-	if(subminor != 0)
-		version += sprintf(version, ".%u", subminor);
-	if(rc != 0)
-		sprintf(version, "RC%u", rc);
-}
-
 void id_print(void)
 {
-	char soc_version[13];
 	char sysid[3];
 
-	get_soc_version_formatted(soc_version);
 	get_sysid_formatted(sysid);
-	printf("Running on MiSoC %s (sysid:%s) at %dMHz\n", soc_version, sysid, identifier_frequency_read()/1000000);
+	printf("Running on MiSoC rev. %08x (sysid:%s) at %dMHz\n", identifier_revision_read(), sysid, identifier_frequency_read()/1000000);
 }

top.py

@@ -11,8 +11,6 @@ from mibuild.generic_platform import ConstraintError
 from misoclib import mxcrg, lm32, norflash, uart, s6ddrphy, dfii, lasmicon, \
 	identifier, timer, minimac3, framebuffer, dvisampler, gpio, memtest
 
-version = "2.0"
-
 clk_freq = (83 + Fraction(1, 3))*1000000
 sram_size = 4096 # in bytes
 l2_size = 8192 # in bytes
@@ -156,7 +154,7 @@ class SoC(Module):
 		#
 		self.submodules.crg = mxcrg.MXCRG(MXClockPads(platform), clk_freq)
 		self.submodules.uart = uart.UART(platform.request("serial"), clk_freq, baud=115200)
-		self.submodules.identifier = identifier.Identifier(0x4D31, version, int(clk_freq))
+		self.submodules.identifier = identifier.Identifier(0x4D31, int(clk_freq))
 		self.submodules.timer0 = timer.Timer()
 		if platform_name == "mixxeo":
 			self.submodules.leds = gpio.GPIOOut(platform.request("user_led"))

verilog/lm32/submodule

@@ -1 +1 @@
-Subproject commit 4c0f6c51253b4482fe7685e77d4d5549207a098c
+Subproject commit 90651f0dcb02565bd69c634f4a811e94671d21ef