src/soc/intel/skylake/include/soc/pcr.h

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2015 Intel Corporation.
 *
 * 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.
 */

#ifndef _SOC_PCR_H_
#define _SOC_PCR_H_

/*
 * Primary to sideband (P2SB) for private configuration registers (PCR).
 */

/* Port Id lives in bits 23:16 and register offset lives in 15:0 of address. */
#define PCR_PORTID_SHIFT	16
#define PCR_OFFSET_SHIFT	0

/* DMI Control Register */
#define R_PCH_PCR_DMI_DMIC	0x2234
#define B_PCH_PCR_DMI_DMIC_SRL	(1 << 31)
#define R_PCH_PCR_DMI_LPCLGIR1	0x2730
#define R_PCH_PCR_DMI_LPCLGIR2	0x2734
#define R_PCH_PCR_DMI_LPCLGIR3	0x2738
#define R_PCH_PCR_DMI_LPCLGIR4	0x273c
#define R_PCH_PCR_DMI_LPCIOD	0x2770
#define R_PCH_PCR_DMI_LPCIOE	0x2774

/* RTC configuration */
#define R_PCH_PCR_RTC_CONF	0x3400
#define B_PCH_PCR_RTC_CONF_UCMOS_EN	0x4

/* ITSS PCRs*/
/* PIRQA Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQA_ROUT	0x3100
/* PIRQB Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQB_ROUT	0x3101
/* PIRQC Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQC_ROUT	0x3102
/* PIRQD Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQD_ROUT	0x3103
/* PIRQE Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQE_ROUT	0x3104
/* PIRQF Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQF_ROUT	0x3105
/* PIRQG Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQG_ROUT	0x3106
/* PIRQH Routing Control Register*/
#define R_PCH_PCR_ITSS_PIRQH_ROUT	0x3107

/* IO Trap PCRs */
/* Trap status Register */
#define R_PCH_PCR_PSTH_TRPST	0x1E00
/* Trapped cycle */
#define R_PCH_PCR_PSTH_TRPC		0x1E10
/* Trapped write data */
#define R_PCH_PCR_PSTH_TRPD		0x1E18

/* Serial IO UART controller legacy mode */
#define R_PCH_PCR_SERIAL_IO_GPPRVRW7	0x618
#define SIO_PCH_LEGACY_UART0		(1 << 0)
#define SIO_PCH_LEGACY_UART1		(1 << 1)
#define SIO_PCH_LEGACY_UART2		(1 << 2)

/*
 * P2SB port ids.
 */
#define PID_PSTH	0x89
#define PID_GPIOCOM3	0xAC
#define PID_GPIOCOM2	0xAD
#define PID_GPIOCOM1	0xAE
#define PID_GPIOCOM0	0xAF
#define PID_LPC		0xC7
#define PID_ITSS	0xC4
#define PID_RTC		0xC3
#define PID_SERIALIO	0xCB
#define PID_DMI		0xEF

#if !defined(__ASSEMBLER__) && !defined(__ACPI__)
#include <stdint.h>

/* All these return 0 on success and < 0 on errror. */
int pcr_read32(u8 pid, u16 offset, u32 *outdata);
int pcr_read16(u8 pid, u16 offset, u16 *outdata);
int pcr_read8(u8 pid, u16 offset, u8 *outdata);
int pcr_write32(u8 pid, u16 offset, u32 indata);
int pcr_write16(u8 pid, u16 offset, u16 indata);
int pcr_write8(u8 pid, u16 offset, u8 indata);
int pcr_andthenor32(u8 pid, u16 offset, u32 anddata, u32 ordata);
int pcr_andthenor16(u8 pid, u16 offset, u16 anddata, u16 ordata);
int pcr_andthenor8(u8 pid, u16 offset, u8 anddata, u8 ordata);

/* Get the starting address of the port's registers. */
uint8_t *pcr_port_regs(u8 pid);
#endif /* if !defined(__ASSEMBLER__) && !defined(__ACPI__) */

#endif /* _SOC_PCR_H_ */