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/*
* This file is part of the coreboot project.
*
* 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.
*/
/*
* Include this file into a mainboard's DSDT _SB device tree and it will
* expose the IT8516E in the configuration used by Kontron:
* 2xUART,
* PS/2 Mouse, Keyboard
* Two PM Channels
*
* It allows the change of IO ports, IRQs and DMA settings on the devices
* and disabling and reenabling logical devices.
*
* Controlled by the following preprocessor defines:
* IT8516E_EC_DEV Device identifier for this EC (e.g. EC0)
* SUPERIO_PNP_BASE I/o address of the first PnP configuration register
* IT8516E_FIRST_DATA I/o address of the EC_DATA register on the first
* pm channel
* IT8516E_FIRST_SC I/o address of the EC_SC register on the first
* pm channel
* IT8516E_SECOND_DATA I/o address of the EC_DATA register on the second
* pm channel
* IT8516E_SECOND_SC I/o address of the EC_SC register on the second
* pm channel
*/
#undef SUPERIO_CHIP_NAME
#define SUPERIO_CHIP_NAME IT8516E
#include <superio/acpi/pnp.asl>
Device(IT8516E_EC_DEV) {
Name (_HID, EisaId("PNP0A05"))
Name (_STR, Unicode("Kontron IT8516E Embedded Controller"))
Name (_UID, SUPERIO_UID(IT8516E_EC_DEV,))
/* SuperIO configuration ports */
OperationRegion (CREG, SystemIO, SUPERIO_PNP_BASE, 0x02)
Field (CREG, ByteAcc, NoLock, Preserve)
{
ADDR, 8,
DATA, 8
}
IndexField (ADDR, DATA, ByteAcc, NoLock, Preserve)
{
Offset (0x07),
PNP_LOGICAL_DEVICE, 8, /* Logical device selector */
Offset (0x30),
PNP_DEVICE_ACTIVE, 1, /* Logical device activation */
Offset (0x60),
PNP_IO0_HIGH_BYTE, 8, /* First I/O port base - high byte */
PNP_IO0_LOW_BYTE, 8, /* First I/O port base - low byte */
PNP_IO1_HIGH_BYTE, 8, /* Second I/O port base - high byte */
PNP_IO1_LOW_BYTE, 8, /* Second I/O port base - low byte */
Offset (0x70),
PNP_IRQ0, 8, /* First IRQ */
}
Method (_CRS)
{
/* Announce the used i/o ports to the OS */
Return (ResourceTemplate () {
IO (Decode16, SUPERIO_PNP_BASE, SUPERIO_PNP_BASE, 0x01, 0x02)
})
}
#undef PNP_ENTER_MAGIC_1ST
#undef PNP_ENTER_MAGIC_2ND
#undef PNP_ENTER_MAGIC_3RD
#undef PNP_ENTER_MAGIC_4TH
#undef PNP_EXIT_MAGIC_1ST
#undef PNP_EXIT_SPECIAL_REG
#undef PNP_EXIT_SPECIAL_VAL
#include <superio/acpi/pnp_config.asl>
Method (_PSC)
{
/* No PM: always in C0 */
Return (0)
}
#undef SUPERIO_UART_LDN
#undef SUPERIO_UART_DDN
#undef SUPERIO_UART_PM_REG
#define SUPERIO_UART_LDN 1
#include <superio/acpi/pnp_uart.asl>
#undef SUPERIO_UART_LDN
#define SUPERIO_UART_LDN 2
#include <superio/acpi/pnp_uart.asl>
#undef SUPERIO_KBC_LDN
#undef SUPERIO_KBC_PS2M
#undef SUPERIO_KBC_PS2LDN
#define SUPERIO_KBC_LDN 6
#define SUPERIO_KBC_PS2LDN 5
#include <superio/acpi/pnp_kbc.asl>
#include "pm_channels.asl"
}