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diff --git a/src/superio/acpi/pnp_uart.asl b/src/superio/acpi/pnp_uart.asl
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Christoph Grenz <christophg+cb@grenz-bonn.de>
+ * Copyright (C) 2013 secunet Security Networks AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* ========================== UART ========================== */
+
+/*
+ * Generic setup for 16550A compatible UARTs.
+ *
+ * Controlled by the following preprocessor defines:
+ *
+ * SUPERIO_CHIP_NAME The name of the super i/o chip (unique, required)
+ * SUPERIO_UART_LDN The logical device number on the super i/o
+ * chip for this UART (required)
+ * SUPERIO_UART_DDN A string literal that identifies the dos device
+ * name (DDN) of this uart (e.g. "COM1", optional)
+ * SUPERIO_UART_PM_REG Identifier of a 1-bit register to power down
+ * the UART (optional)
+ * SUPERIO_UART_PM_LDN The logical device number to access the PM_REG
+ * bit (required if SUPERIO_UART_PM_REG is defined)
+ */
+
+#include "pnp.asl"
+
+#ifndef SUPERIO_CHIP_NAME
+# error "SUPERIO_CHIP_NAME is not defined."
+#endif
+
+#ifndef SUPERIO_UART_LDN
+# error "SUPERIO_UART_LDN is not defined."
+#endif
+
+Device (SUPERIO_ID(SER, SUPERIO_UART_LDN)) {
+ Name (_HID, EisaId ("PNP0501"))
+ Name (_UID, SUPERIO_UID(SER, SUPERIO_UART_LDN))
+ #ifdef SUPERIO_UART_DDN
+ Name (_DDN, SUPERIO_UART_DDN)
+ #endif
+
+ Method (_STA)
+ {
+ PNP_GENERIC_STA(SUPERIO_UART_LDN)
+ }
+
+ Method (_DIS)
+ {
+ PNP_GENERIC_DIS(SUPERIO_UART_LDN)
+ }
+
+#ifdef SUPERIO_UART_PM_REG
+ Method (_PSC) {
+ PNP_GENERIC_PSC(SUPERIO_UART_PM_REG, SUPERIO_UART_PM_LDN)
+ }
+
+ Method (_PS0) {
+ PNP_GENERIC_PS0(SUPERIO_UART_PM_REG, SUPERIO_UART_PM_LDN)
+ }
+
+ Method (_PS1) {
+ PNP_GENERIC_PS1(SUPERIO_UART_PM_REG, SUPERIO_UART_PM_LDN)
+ }
+#else
+ Method (_PSC) {
+ PNP_DEFAULT_PSC
+ }
+#endif
+
+ Method (_CRS)
+ {
+ Name (CRS, ResourceTemplate () {
+ IO (Decode16, 0x0000, 0x0000, 0x08, 0x08, IO0)
+ IRQNoFlags (IR0) {}
+ })
+ ENTER_CONFIG_MODE (SUPERIO_UART_LDN)
+ PNP_READ_IO(PNP_IO0, CRS, IO0)
+ PNP_READ_IRQ(PNP_IRQ0, CRS, IR0)
+ EXIT_CONFIG_MODE ()
+ Return (CRS)
+ }
+
+ Name (_PRS, ResourceTemplate ()
+ {
+ StartDependentFn (0,0) {
+ IO (Decode16, 0x03f8, 0x03f8, 0x08, 0x08)
+ IRQNoFlags () {3,4,5,7,9,10,11,12}
+ }
+ StartDependentFn (0,0) {
+ IO (Decode16, 0x02f8, 0x02f8, 0x08, 0x08)
+ IRQNoFlags () {3,4,5,7,9,10,11,12}
+ }
+ StartDependentFn (1,0) {
+ IO (Decode16, 0x03e8, 0x03e8, 0x08, 0x08)
+ IRQNoFlags () {3,4,5,7,9,10,11,12}
+ }
+ StartDependentFn (1,0) {
+ IO (Decode16, 0x02e8, 0x02e8, 0x08, 0x08)
+ IRQNoFlags () {3,4,5,7,9,10,11,12}
+ }
+ StartDependentFn (2,0) {
+ IO (Decode16, 0x0100, 0x0ff8, 0x08, 0x08)
+ IRQNoFlags () {3,4,5,7,9,10,11,12}
+ }
+ EndDependentFn()
+ })
+
+ Method (_SRS, 1, Serialized)
+ {
+ Name (TMPL, ResourceTemplate () {
+ IO (Decode16, 0x0000, 0x0000, 0x00, 0x00, IO0)
+ IRQNoFlags (IR0) {}
+ })
+ ENTER_CONFIG_MODE (SUPERIO_UART_LDN)
+ PNP_WRITE_IO(PNP_IO0, Arg0, IO0)
+ PNP_WRITE_IRQ(PNP_IRQ0, Arg0, IR0)
+ Store (One, PNP_DEVICE_ACTIVE)
+ EXIT_CONFIG_MODE ()
+ }
+}