Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2013 secunet Security Networks AG |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | /* |
| 17 | * Include this file into a mainboard's DSDT _SB device tree and it will |
| 18 | * expose the IT8516E in the configuration used by Kontron: |
| 19 | * 2xUART, |
| 20 | * PS/2 Mouse, Keyboard |
| 21 | * Two PM Channels |
| 22 | * |
| 23 | * It allows the change of IO ports, IRQs and DMA settings on the devices |
| 24 | * and disabling and reenabling logical devices. |
| 25 | * |
| 26 | * Controlled by the following preprocessor defines: |
| 27 | * IT8516E_EC_DEV Device identifier for this EC (e.g. EC0) |
| 28 | * SUPERIO_PNP_BASE I/o address of the first PnP configuration register |
| 29 | * IT8516E_FIRST_DATA I/o address of the EC_DATA register on the first |
| 30 | * pm channel |
| 31 | * IT8516E_FIRST_SC I/o address of the EC_SC register on the first |
| 32 | * pm channel |
| 33 | * IT8516E_SECOND_DATA I/o address of the EC_DATA register on the second |
| 34 | * pm channel |
| 35 | * IT8516E_SECOND_SC I/o address of the EC_SC register on the second |
| 36 | * pm channel |
| 37 | */ |
| 38 | |
| 39 | #undef SUPERIO_CHIP_NAME |
| 40 | #define SUPERIO_CHIP_NAME IT8516E |
| 41 | #include <superio/acpi/pnp.asl> |
| 42 | |
| 43 | Device(IT8516E_EC_DEV) { |
| 44 | Name (_HID, EisaId("PNP0A05")) |
| 45 | Name (_STR, Unicode("Kontron IT8516E Embedded Controller")) |
| 46 | Name (_UID, SUPERIO_UID(IT8516E_EC_DEV,)) |
| 47 | |
| 48 | /* SuperIO configuration ports */ |
| 49 | OperationRegion (CREG, SystemIO, SUPERIO_PNP_BASE, 0x02) |
| 50 | Field (CREG, ByteAcc, NoLock, Preserve) |
| 51 | { |
| 52 | ADDR, 8, |
| 53 | DATA, 8 |
| 54 | } |
| 55 | IndexField (ADDR, DATA, ByteAcc, NoLock, Preserve) |
| 56 | { |
| 57 | Offset (0x07), |
| 58 | PNP_LOGICAL_DEVICE, 8, /* Logical device selector */ |
| 59 | |
| 60 | Offset (0x30), |
| 61 | PNP_DEVICE_ACTIVE, 1, /* Logical device activation */ |
| 62 | |
| 63 | Offset (0x60), |
| 64 | PNP_IO0_HIGH_BYTE, 8, /* First I/O port base - high byte */ |
| 65 | PNP_IO0_LOW_BYTE, 8, /* First I/O port base - low byte */ |
| 66 | PNP_IO1_HIGH_BYTE, 8, /* Second I/O port base - high byte */ |
| 67 | PNP_IO1_LOW_BYTE, 8, /* Second I/O port base - low byte */ |
| 68 | |
| 69 | Offset (0x70), |
| 70 | PNP_IRQ0, 8, /* First IRQ */ |
| 71 | } |
| 72 | |
| 73 | Method (_CRS) |
| 74 | { |
| 75 | /* Announce the used i/o ports to the OS */ |
| 76 | Return (ResourceTemplate () { |
| 77 | IO (Decode16, SUPERIO_PNP_BASE, SUPERIO_PNP_BASE, 0x01, 0x02) |
| 78 | }) |
| 79 | } |
| 80 | |
| 81 | #undef PNP_ENTER_MAGIC_1ST |
| 82 | #undef PNP_ENTER_MAGIC_2ND |
| 83 | #undef PNP_ENTER_MAGIC_3RD |
| 84 | #undef PNP_EXIT_MAGIC_1ST |
| 85 | #include <superio/acpi/pnp_config.asl> |
| 86 | |
| 87 | Method (_PSC) |
| 88 | { |
| 89 | /* No PM: always in C0 */ |
| 90 | Return (0) |
| 91 | } |
| 92 | |
| 93 | #undef SUPERIO_UART_LDN |
| 94 | #undef SUPERIO_UART_DDN |
| 95 | #undef SUPERIO_UART_PM_REG |
| 96 | #define SUPERIO_UART_LDN 1 |
| 97 | #include <superio/acpi/pnp_uart.asl> |
| 98 | |
| 99 | #undef SUPERIO_UART_LDN |
| 100 | #define SUPERIO_UART_LDN 2 |
| 101 | #include <superio/acpi/pnp_uart.asl> |
| 102 | |
| 103 | #undef SUPERIO_KBC_LDN |
| 104 | #undef SUPERIO_KBC_PS2M |
| 105 | #undef SUPERIO_KBC_PS2LDN |
| 106 | #define SUPERIO_KBC_LDN 6 |
| 107 | #define SUPERIO_KBC_PS2LDN 5 |
| 108 | #include <superio/acpi/pnp_kbc.asl> |
| 109 | |
| 110 | #include "pm_channels.asl" |
| 111 | } |