* 'set root device' patch inclusion from Robert Schuster

src/main.c

@@ -33,6 +33,7 @@ char  *boot_cmdline = NULL;
 char  *reverseto    = NULL;
 int    rdflags      = -1;
 int    usb_mode     = -1;
+int    root_device  = -1;
 int    verbose      = 0;
 int    identify     = 0;
 int    reboot       = 0;
@@ -157,6 +158,7 @@ void show_usage()
 	printf(" -I [piece]    identify a firmware piece\n");
 	printf(" -l            list supported usb device ids\n");
 	printf(" -d [vid:pid]  injects a usb device into the supported list\n");
+	printf(" -D [0|1|2]    sets the root device to flash (0), mmc (1) or usb (2)\n");
 	printf(" -R            reboot the omap board\n");
 	printf(" -v            be verbose and noisy\n");
 	printf(" -V            show 0xFFFF version information\n");
@@ -199,7 +201,7 @@ int main(int argc, char **argv)
 	struct usb_device_descriptor udd;
 	int c;
 
-	while((c = getopt(argc, argv, "p:vVhRu:ib:U:r:e:ld:I:")) != -1) {
+	while((c = getopt(argc, argv, "p:vVhRu:ib:U:r:e:ld:I:D:")) != -1) {
 		switch(c) {
 		case 'd':
 			sscanf(optarg, "%04hx:%04hx", 
@@ -207,6 +209,9 @@ int main(int argc, char **argv)
 				&supported_devices[SUPPORTED_DEVICES-2].product_id);
 			supported_devices[SUPPORTED_DEVICES-2].name = strdup("user");
 			break;
+		case 'D':
+			root_device = atoi(optarg);
+			break;
 		case 'e':
 			reverseto = optarg;
 			break;
@@ -262,10 +267,12 @@ int main(int argc, char **argv)
 	&&	(rdflags      == -1)
 	&&	(info         == 0)
 	&&	(reboot       == 0)
-	&&      (usb_mode     == -1))
+	&&      (usb_mode     == -1)
+	&& 	(root_device  == -1))
 	{
-		printf("Usage: 0xFFFF [-hvVRi] [-e path] [-U 0|1] [-p [piece%]file [-p ...]]\n");
+		printf("Usage: 0xFFFF [-hvVRi] [-e path] [-U 0|1] [-p [piece%%]file [-p ...]]\n");
 		printf("              [-b boot-args] [-I piece [-I ...]] [-u fiasco-image]\n");
+		printf("              [-D 0|1|2]\n");
 		return 1;
 	}
 
@@ -330,6 +337,9 @@ int main(int argc, char **argv)
 		}
 	}
 
+	if (root_device != -1)
+		set_root_device(root_device);
+
 	if (usb_mode!=-1)
 		set_usb_host_mode(usb_mode);
 

src/main.h

@@ -21,7 +21,10 @@ int set_rd_mode(unsigned short mode);
 int set_usb_host_mode(unsigned short mode);
 int query_hw_revision();
 int query_rdmode_device();
+
 int query_root_device();
+int set_root_device(unsigned short);
+
 int query_nolo_version();
 int add_piece(char *piece);
 

src/query.c

@@ -28,7 +28,7 @@
 int get_status()
 {
 	int ret = 0;
-	if (usb_control_msg(dev, 192, 1, 0, 0, (char *)&ret, 4, 2000) == -1) {
+	if (usb_control_msg(dev, CMD_QUERY, 1, 0, 0, (char *)&ret, 4, 2000) == -1) {
 		fprintf(stderr, "Cannot get device status.\n");
 		exit(1);
 	}
@@ -157,7 +157,7 @@ int query_root_device()
 {
 	unsigned char opcode;
 
-	if (usb_control_msg(dev, 192, 17, 0, 1, (char *)&opcode, 1, 2000) < 0) {
+	if (usb_control_msg(dev, CMD_QUERY, 17, 0, 1, (char *)&opcode, 1, 2000) < 0) {
 		fprintf(stderr, "Cannot query root device\n");
 		return -1;
 	}
@@ -171,12 +171,35 @@ int query_root_device()
 	return 0;
 }
 
+/**
+ * request type: CMD_WRITE
+ * request     : 16
+ * value       : 0|1|2 (=> flash|mmc|usb)
+ * index       : 1
+ */
+int set_root_device(unsigned short root_device)
+{
+	if (root_device>2) {
+		printf("Invalid root device specified '%d'.\n", root_device);
+		return -1;
+	}
+
+	if (usb_control_msg(dev, CMD_WRITE, 16, root_device, 1, 0, 0, 2000) == -1) {
+		fprintf(stderr, "Cannot set root device\n");
+		return -1;
+	}
+
+	printf("Root device set to: %s\n", root_devices[root_device]);
+
+	return 0;
+}
+
 int query_nolo_version()
 {
 	unsigned int version; // ensure uint is at least 32 bits
 
-	//if (usb_control_msg(dev, 192, 3, 0, 1, (char *)&version, 4 , 2000) < 0) {
-	if (usb_control_msg(dev, 192, 3, 0, 0, (char *)&version, 4 , 2000) < 0) {
+	//if (usb_control_msg(dev, CMD_QUERY, 3, 0, 1, (char *)&version, 4 , 2000) < 0) {
+	if (usb_control_msg(dev, CMD_QUERY, 3, 0, 0, (char *)&version, 4 , 2000) < 0) {
 		fprintf(stderr, "Cannot query nolo version. Old bootloader version?\n");
 		exit(1);
 	}