1 (6- to 8-pound) bone-in pork butt, also called pork shoulder
2 tablespoons coarse salt
1 tablespoon ground cumin
1 tablespoon freshly ground black pepper
1 tablespoon dried oregano
2 teaspoons ground cinnamon
1 teaspoon cayenne pepper, or to taste
8 whole cloves garlic, smashed
4 chipotle peppers (canned or dried)
1 (14- or 15-ounce) can diced tomatoes
2 to 3 cups liquid (orange juice, beer, stock, or a combination)