common/lcd: Add command for setting cursor within lcd-console

Sometimes we do not want redirect u-boot's console to screen but anyway we want
write out some status information out of a u-boot script to the display.

To define the specific position of the string to be written, we have to set
the cursor with "setcurs" before writing.

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>

common/lcd_console.c

@@ -209,3 +209,24 @@ void lcd_printf(const char *fmt, ...)
 
 	lcd_puts(buf);
 }
+
+static int do_lcd_setcursor(cmd_tbl_t *cmdtp, int flag, int argc,
+			    char *const argv[])
+{
+	unsigned int col, row;
+
+	if (argc != 3)
+		return CMD_RET_USAGE;
+
+	col = simple_strtoul(argv[1], NULL, 10);
+	row = simple_strtoul(argv[2], NULL, 10);
+	lcd_position_cursor(col, row);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	setcurs, 3,	1,	do_lcd_setcursor,
+	"set cursor position within screen",
+	"    <col> <row> in character"
+);