src/northbridge/intel/sandybridge/sandybridge.h

/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef __NORTHBRIDGE_INTEL_SANDYBRIDGE_SANDYBRIDGE_H__
#define __NORTHBRIDGE_INTEL_SANDYBRIDGE_SANDYBRIDGE_H__

/* Device ID for SandyBridge and IvyBridge */
#define BASE_REV_SNB	0x00
#define BASE_REV_IVB	0x50
#define BASE_REV_MASK	0x50

/* SandyBridge CPU stepping */
#define SNB_STEP_D0	(BASE_REV_SNB + 5) /* Also J0 */
#define SNB_STEP_D1	(BASE_REV_SNB + 6)
#define SNB_STEP_D2	(BASE_REV_SNB + 7) /* Also J1/Q0 */

/* IvyBridge CPU stepping */
#define IVB_STEP_A0	(BASE_REV_IVB + 0)
#define IVB_STEP_B0	(BASE_REV_IVB + 2)
#define IVB_STEP_C0	(BASE_REV_IVB + 4)
#define IVB_STEP_K0	(BASE_REV_IVB + 5)
#define IVB_STEP_D0	(BASE_REV_IVB + 6)

#include "memmap.h"

/* Everything below this line is ignored in the DSDT */
#ifndef __ACPI__
#include <stdint.h>

/* Chipset types */
enum platform_type {
	PLATFORM_MOBILE = 0,
	PLATFORM_DESKTOP_SERVER,
};


/* Device 0:0.0 PCI configuration space (Host Bridge) */
#define HOST_BRIDGE	PCI_DEV(0, 0, 0)

#include "registers/host_bridge.h"


/* Devices 0:1.0, 0:1.1, 0:1.2, 0:6.0 PCI configuration space (PCI Express Graphics) */

#define AFE_PWRON	0xc24	/* PEG Analog Front-End Power-On */


/* Device 0:2.0 PCI configuration space (Graphics Device) */

#define MSAC		0x62	/* Multi Size Aperture Control */

/*
 * MCHBAR
 */

#define MCHBAR8(x)  (*((volatile u8  *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR16(x) (*((volatile u16 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR32(x) (*((volatile u32 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR8_AND(x,  and) (MCHBAR8(x)  = MCHBAR8(x)  & (and))
#define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and))
#define MCHBAR32_AND(x, and) (MCHBAR32(x) = MCHBAR32(x) & (and))
#define MCHBAR8_OR(x,  or) (MCHBAR8(x)  = MCHBAR8(x)  | (or))
#define MCHBAR16_OR(x, or) (MCHBAR16(x) = MCHBAR16(x) | (or))
#define MCHBAR32_OR(x, or) (MCHBAR32(x) = MCHBAR32(x) | (or))
#define MCHBAR8_AND_OR(x,  and, or) (MCHBAR8(x)  = (MCHBAR8(x)  & (and)) | (or))
#define MCHBAR16_AND_OR(x, and, or) (MCHBAR16(x) = (MCHBAR16(x) & (and)) | (or))
#define MCHBAR32_AND_OR(x, and, or) (MCHBAR32(x) = (MCHBAR32(x) & (and)) | (or))

/* As there are many registers, define them on a separate file */
#include "registers/mchbar.h"

/*
 * EPBAR - Egress Port Root Complex Register Block
 */

#define EPBAR8(x)  (*((volatile u8  *)(DEFAULT_EPBAR + (x))))
#define EPBAR16(x) (*((volatile u16 *)(DEFAULT_EPBAR + (x))))
#define EPBAR32(x) (*((volatile u32 *)(DEFAULT_EPBAR + (x))))

#define EPPVCCAP1	0x004	/* 32bit */
#define EPPVCCAP2	0x008	/* 32bit */

#define EPVC0RCAP	0x010	/* 32bit */
#define EPVC0RCTL	0x014	/* 32bit */
#define EPVC0RSTS	0x01a	/* 16bit */

#define EPVC1RCAP	0x01c	/* 32bit */
#define EPVC1RCTL	0x020	/* 32bit */
#define EPVC1RSTS	0x026	/* 16bit */

#define EPESD		0x044	/* 32bit */

#define EPLE1D		0x050	/* 32bit */
#define EPLE1A		0x058	/* 64bit */
#define EPLE2D		0x060	/* 32bit */
#define EPLE2A		0x068	/* 64bit */

/*
 * DMIBAR
 */

#define DMIBAR8(x)  (*((volatile u8  *)(DEFAULT_DMIBAR + (x))))
#define DMIBAR16(x) (*((volatile u16 *)(DEFAULT_DMIBAR + (x))))
#define DMIBAR32(x) (*((volatile u32 *)(DEFAULT_DMIBAR + (x))))

#define DMIVCECH	0x000	/* 32bit */
#define DMIPVCCAP1	0x004	/* 32bit */
#define DMIPVCCAP2	0x008	/* 32bit */
#define DMIPVCCCTL	0x00c	/* 16bit */

#define DMIVC0RCAP	0x010	/* 32bit */
#define DMIVC0RCTL	0x014	/* 32bit */
#define DMIVC0RSTS	0x01a	/* 16bit */
#define  VC0NP		(1 << 1)

#define DMIVC1RCAP	0x01c	/* 32bit */
#define DMIVC1RCTL	0x020	/* 32bit */
#define DMIVC1RSTS	0x026	/* 16bit */
#define  VC1NP		(1 << 1)

#define DMIVCPRCAP	0x028	/* 32bit */
#define DMIVCPRCTL	0x02c	/* 32bit */
#define DMIVCPRSTS	0x032	/* 16bit */
#define  VCPNP		(1 << 1)

#define DMIVCMRCAP	0x034	/* 32bit */
#define DMIVCMRCTL	0x038	/* 32bit */
#define DMIVCMRSTS	0x03e	/* 16bit */
#define  VCMNP		(1 << 1)

#define DMIRCLDECH	0x040	/* 32bit */
#define DMIESD		0x044	/* 32bit */

#define DMILE1D		0x050	/* 32bit */
#define DMILE1A		0x058	/* 64bit */
#define DMILE2D		0x060	/* 32bit */
#define DMILE2A		0x068	/* 64bit */

#define DMILCAP		0x084	/* 32bit */
#define DMILCTL		0x088	/* 16bit */
#define DMILSTS		0x08a	/* 16bit */
#define  TXTRN		(1 << 11)

#define DMILCTL2	0x098	/* 16bit */
#define DMILSTS2	0x09a	/* 16bit */

#define DMIUESTS	0x1c4	/* 32bit */
#define DMICESTS	0x1d0	/* 32bit */

#define DMIL0SLAT	0x22c	/* 32bit */
#define DMILLTC		0x238	/* 32bit */

#ifndef __ASSEMBLER__

void intel_sandybridge_finalize_smm(void);
int bridge_silicon_revision(void);
void systemagent_early_init(void);
void sandybridge_init_iommu(void);
void sandybridge_late_initialization(void);
void northbridge_romstage_finalize(int s3resume);
void early_init_dmi(void);

/* mainboard_early_init: Optional callback, run after console init but before raminit. */
void mainboard_early_init(int s3resume);
int mainboard_should_reset_usb(int s3resume);
void perform_raminit(int s3resume);
void report_memory_config(void);
enum platform_type get_platform_type(void);

int decode_pcie_bar(u32 *const base, u32 *const len);

#include <device/device.h>

struct acpi_rsdp;
unsigned long northbridge_write_acpi_tables(const struct device *device, unsigned long start,
					    struct acpi_rsdp *rsdp);

#endif
#endif
#endif /* __NORTHBRIDGE_INTEL_SANDYBRIDGE_SANDYBRIDGE_H__ */