ectool: fix NetBSD compilation

Since NetBSD does not support uname -o, push check for CygWin
inside separate non-failing condition in Makefile.

Change-Id: Ibd264384f49b33412f0ef8554bd9c9fb8f60a892
Signed-off-by: Andrey Korolyov <andrey@xdel.ru>
Reviewed-on: https://review.coreboot.org/12831
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/util/ectool/Makefile b/util/ectool/Makefile
index a869577..8aa1415 100644
--- a/util/ectool/Makefile
+++ b/util/ectool/Makefile
@@ -19,12 +19,16 @@
 PROGRAM = ectool
 INSTALL = /usr/bin/install
 PREFIX  = /usr/local
+OS_ARCH = $(shell uname)
 
-OS_ARCH = $(shell uname -o)
-ifeq ($(OS_ARCH), Cygwin)
+ifeq ($(shell uname -o 2>/dev/null), Cygwin)
 LDFLAGS = -lioperm
 endif
 
+ifeq ($(OS_ARCH), NetBSD)
+LDFLAGS = -l$(shell uname -p)
+endif
+
 all: $(PROGRAM)
 
 $(PROGRAM): ec.o ectool.o
diff --git a/util/ectool/ec.c b/util/ectool/ec.c
index 406cc41..098e812 100644
--- a/util/ectool/ec.c
+++ b/util/ectool/ec.c
@@ -17,9 +17,25 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <unistd.h>
+#ifndef __NetBSD__
 #include <sys/io.h>
+#endif
 #include "ec.h"
 
+#ifdef __NetBSD__
+#include <machine/sysarch.h>
+static uint8_t inb(unsigned port)
+{
+	uint8_t data;
+	__asm volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+	return data;
+}
+static __inline void outb(uint8_t data, unsigned port)
+{
+	__asm volatile("outb %0,%w1" : : "a" (data), "d" (port));
+}
+#endif
+
 extern int verbose;
 
 #define debug(x...) if (verbose) printf(x)
diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
index c93eb25..50ac30b 100644
--- a/util/ectool/ectool.c
+++ b/util/ectool/ectool.c
@@ -18,10 +18,17 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <getopt.h>
+#ifndef __NetBSD__
 #include <sys/io.h>
+#endif
 #include <ec.h>
 #include <stdlib.h>
 
+#ifdef __NetBSD__
+#include <machine/sysarch.h>
+#endif
+
+
 #define ECTOOL_VERSION "0.1"
 
 void print_version(void)
@@ -106,7 +113,15 @@
 		}
 	}
 
+#ifdef __NetBSD__
+# ifdef __i386__
+	if (i386_iopl(3)) {
+# else
+	if (x86_64_iopl(3)) {
+# endif
+#else
 	if (iopl(3)) {
+#endif
 		printf("You need to be root.\n");
 		exit(1);
 	}