root/arch/mips/include/asm/mips-boards/piix4.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Carsten Langgaard, carstenl@mips.com
 * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
 * Copyright (C) 2013 Imagination Technologies Ltd.
 *
 * Register definitions for Intel PIIX4 South Bridge Device.
 */
#ifndef __ASM_MIPS_BOARDS_PIIX4_H
#define __ASM_MIPS_BOARDS_PIIX4_H

/* PIRQX Route Control */
#define PIIX4_FUNC0_PIRQRC                      0x60
#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_DISABLE        (1 << 7)
#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MASK           0xf
#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MAX            16
/* SERIRQ Control */
#define PIIX4_FUNC0_SERIRQC                     0x64
#define   PIIX4_FUNC0_SERIRQC_EN                        (1 << 7)
#define   PIIX4_FUNC0_SERIRQC_CONT                      (1 << 6)
/* Top Of Memory */
#define PIIX4_FUNC0_TOM                         0x69
#define   PIIX4_FUNC0_TOM_TOP_OF_MEMORY_MASK            0xf0
/* Deterministic Latency Control */
#define PIIX4_FUNC0_DLC                         0x82
#define   PIIX4_FUNC0_DLC_USBPR_EN                      (1 << 2)
#define   PIIX4_FUNC0_DLC_PASSIVE_RELEASE_EN            (1 << 1)
#define   PIIX4_FUNC0_DLC_DELAYED_TRANSACTION_EN        (1 << 0)
/* General Configuration */
#define PIIX4_FUNC0_GENCFG                      0xb0
#define   PIIX4_FUNC0_GENCFG_SERIRQ                     (1 << 16)

/* IDE Timing */
#define PIIX4_FUNC1_IDETIM_PRIMARY_LO           0x40
#define PIIX4_FUNC1_IDETIM_PRIMARY_HI           0x41
#define   PIIX4_FUNC1_IDETIM_PRIMARY_HI_IDE_DECODE_EN   (1 << 7)
#define PIIX4_FUNC1_IDETIM_SECONDARY_LO         0x42
#define PIIX4_FUNC1_IDETIM_SECONDARY_HI         0x43
#define   PIIX4_FUNC1_IDETIM_SECONDARY_HI_IDE_DECODE_EN (1 << 7)

/* Power Management Configuration Space */
#define PIIX4_FUNC3_PMBA                        0x40
#define PIIX4_FUNC3_PMREGMISC                   0x80
#define   PIIX4_FUNC3_PMREGMISC_EN                      (1 << 0)

/* Power Management IO Space */
#define PIIX4_FUNC3IO_PMSTS                     0x00
#define   PIIX4_FUNC3IO_PMSTS_PWRBTN_STS                (1 << 8)
#define PIIX4_FUNC3IO_PMCNTRL                   0x04
#define   PIIX4_FUNC3IO_PMCNTRL_SUS_EN                  (1 << 13)
#define   PIIX4_FUNC3IO_PMCNTRL_SUS_TYP                 (0x7 << 10)
#define   PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_SOFF            (0x0 << 10)
#define   PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_STR             (0x1 << 10)

/* Data for magic special PCI cycle */
#define PIIX4_SUSPEND_MAGIC                     0x00120002

#endif /* __ASM_MIPS_BOARDS_PIIX4_H */