src/southbridge/intel/bd82x6x/pch.h

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2008-2009 coresystems GmbH
 * Copyright (C) 2012 The Chromium OS Authors.  All rights reserved.
 *
 * 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 SOUTHBRIDGE_INTEL_BD82X6X_PCH_H
#define SOUTHBRIDGE_INTEL_BD82X6X_PCH_H

#include <arch/acpi.h>

/* PCH types */
#define PCH_TYPE_CPT	0x1c /* CougarPoint */
#define PCH_TYPE_PPT	0x1e /* IvyBridge */

/* PCH stepping values for LPC device */
#define PCH_STEP_A0	0
#define PCH_STEP_A1	1
#define PCH_STEP_B0	2
#define PCH_STEP_B1	3
#define PCH_STEP_B2	4
#define PCH_STEP_B3	5

/*
 * It does not matter where we put the SMBus I/O base, as long as we
 * keep it consistent and don't interfere with other devices.  Stage2
 * will relocate this anyways.
 * Our solution is to have SMB initialization move the I/O to SMBUS_IO_BASE
 * again. But handling static BARs is a generic problem that should be
 * solved in the device allocator.
 */
#define SMBUS_IO_BASE		0x0400
#define SMBUS_SLAVE_ADDR	0x24
/* TODO Make sure these don't get changed by stage2 */
#define DEFAULT_GPIOBASE	0x0480
#define DEFAULT_PMBASE		0x0500

#if IS_ENABLED(CONFIG_SOUTHBRIDGE_INTEL_BD82X6X)
#define CROS_GPIO_DEVICE_NAME	"CougarPoint"
#elif IS_ENABLED(CONFIG_SOUTHBRIDGE_INTEL_C216)
#define CROS_GPIO_DEVICE_NAME	"PantherPoint"
#endif

#ifndef __ACPI__
#define DEBUG_PERIODIC_SMIS 0

#if defined(__SMM__) && !defined(__ASSEMBLER__)
void intel_pch_finalize_smm(void);
#endif

#if !defined(__ASSEMBLER__)
#if !defined(__PRE_RAM__)
#if !defined(__SIMPLE_DEVICE__)
#include "chip.h"
void pch_enable(device_t dev);
#endif
int pch_silicon_revision(void);
int pch_silicon_type(void);
int pch_silicon_supported(int type, int rev);
void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue);
#if IS_ENABLED(CONFIG_ELOG)
void pch_log_state(void);
#endif
#else /* __PRE_RAM__ */
void enable_smbus(void);
void enable_usb_bar(void);
int smbus_read_byte(unsigned device, unsigned address);
int early_spi_read(u32 offset, u32 size, u8 *buffer);
void early_thermal_init(void);
void southbridge_configure_default_intmap(void);
void southbridge_rcba_config(void);
void mainboard_rcba_config(void);
void early_pch_init_native(void);
int southbridge_detect_s3_resume(void);

struct southbridge_usb_port
{
	int enabled;
	int current;
	int oc_pin;
};

#ifndef __ROMCC__
extern const struct southbridge_usb_port mainboard_usb_ports[14];
#endif

void
early_usb_init (const struct southbridge_usb_port *portmap);

#endif

/* Return non-zero when RTC failure happened. */
int rtc_failure(void);
#endif

/* PM I/O Space */
#define UPRWC			0x3c
#define  UPRWC_WR_EN		(1 << 1) /* USB Per-Port Registers Write Enable */

/* PCI Configuration Space (D30:F0): PCI2PCI */
#define PSTS	0x06
#define SMLT	0x1b
#define SECSTS	0x1e
#define INTR	0x3c
#define BCTRL	0x3e
#define   SBR	(1 << 6)
#define   SEE	(1 << 1)
#define   PERE	(1 << 0)

#define PCH_EHCI1_DEV		PCI_DEV(0, 0x1d, 0)
#define PCH_EHCI2_DEV		PCI_DEV(0, 0x1a, 0)
#define PCH_XHCI_DEV		PCI_DEV(0, 0x14, 0)
#define PCH_ME_DEV		PCI_DEV(0, 0x16, 0)
#define PCH_PCIE_DEV_SLOT	28
#define PCH_IOAPIC_PCI_BUS	250
#define PCH_IOAPIC_PCI_SLOT	31
#define PCH_HPET_PCI_BUS	250
#define PCH_HPET_PCI_SLOT	15

/* PCI Configuration Space (D31:F0): LPC */
#define PCH_LPC_DEV		PCI_DEV(0, 0x1f, 0)
#define SERIRQ_CNTL		0x64

#define GEN_PMCON_1		0xa0
#define GEN_PMCON_2		0xa2
#define GEN_PMCON_3		0xa4
#define GEN_PMCON_LOCK		0xa6
#define ETR3			0xac
#define  ETR3_CWORWRE		(1 << 18)
#define  ETR3_CF9GR		(1 << 20)
#define  ETR3_CF9LOCK		(1 << 31)

/* GEN_PMCON_3 bits */
#define RTC_BATTERY_DEAD	(1 << 2)
#define RTC_POWER_FAILED	(1 << 1)
#define SLEEP_AFTER_POWER_FAIL	(1 << 0)

#define PMBASE			0x40
#define ACPI_CNTL		0x44
#define   ACPI_EN		(1 << 7)
#define BIOS_CNTL		0xDC
#define GPIO_BASE		0x48 /* LPC GPIO Base Address Register */
#define GPIO_CNTL		0x4C /* LPC GPIO Control Register */

#define GPIO_ROUT		0xb8
#define   GPI_DISABLE		0x00
#define   GPI_IS_SMI		0x01
#define   GPI_IS_SCI		0x02
#define   GPI_IS_NMI		0x03

#define PIRQA_ROUT		0x60
#define PIRQB_ROUT		0x61
#define PIRQC_ROUT		0x62
#define PIRQD_ROUT		0x63
#define PIRQE_ROUT		0x68
#define PIRQF_ROUT		0x69
#define PIRQG_ROUT		0x6A
#define PIRQH_ROUT		0x6B

#define LPC_IBDF		0x6C /* I/O APIC bus/dev/fn */
#define LPC_HnBDF(n)		(0x70 + n * 2) /* HPET n bus/dev/fn */

#define LPC_IO_DEC		0x80 /* IO Decode Ranges Register */
#define LPC_EN			0x82 /* LPC IF Enables Register */
#define  CNF2_LPC_EN		(1 << 13) /* 0x4e/0x4f */
#define  CNF1_LPC_EN		(1 << 12) /* 0x2e/0x2f */
#define  MC_LPC_EN		(1 << 11) /* 0x62/0x66 */
#define  KBC_LPC_EN		(1 << 10) /* 0x60/0x64 */
#define  GAMEH_LPC_EN		(1 << 9)  /* 0x208/0x20f */
#define  GAMEL_LPC_EN		(1 << 8)  /* 0x200/0x207 */
#define  FDD_LPC_EN		(1 << 3)  /* LPC_IO_DEC[12] */
#define  LPT_LPC_EN		(1 << 2)  /* LPC_IO_DEC[9:8] */
#define  COMB_LPC_EN		(1 << 1)  /* LPC_IO_DEC[6:4] */
#define  COMA_LPC_EN		(1 << 0)  /* LPC_IO_DEC[3:2] */
#define LPC_GEN1_DEC		0x84 /* LPC IF Generic Decode Range 1 */
#define LPC_GEN2_DEC		0x88 /* LPC IF Generic Decode Range 2 */
#define LPC_GEN3_DEC		0x8c /* LPC IF Generic Decode Range 3 */
#define LPC_GEN4_DEC		0x90 /* LPC IF Generic Decode Range 4 */

/* PCI Configuration Space (D31:F1): IDE */
#define PCH_IDE_DEV		PCI_DEV(0, 0x1f, 1)
#define PCH_SATA_DEV		PCI_DEV(0, 0x1f, 2)
#define PCH_SATA2_DEV		PCI_DEV(0, 0x1f, 5)
#define INTR_LN			0x3c
#define IDE_TIM_PRI		0x40	/* IDE timings, primary */
#define   IDE_DECODE_ENABLE	(1 << 15)
#define   IDE_SITRE		(1 << 14)
#define   IDE_ISP_5_CLOCKS	(0 << 12)
#define   IDE_ISP_4_CLOCKS	(1 << 12)
#define   IDE_ISP_3_CLOCKS	(2 << 12)
#define   IDE_RCT_4_CLOCKS	(0 <<  8)
#define   IDE_RCT_3_CLOCKS	(1 <<  8)
#define   IDE_RCT_2_CLOCKS	(2 <<  8)
#define   IDE_RCT_1_CLOCKS	(3 <<  8)
#define   IDE_DTE1		(1 <<  7)
#define   IDE_PPE1		(1 <<  6)
#define   IDE_IE1		(1 <<  5)
#define   IDE_TIME1		(1 <<  4)
#define   IDE_DTE0		(1 <<  3)
#define   IDE_PPE0		(1 <<  2)
#define   IDE_IE0		(1 <<  1)
#define   IDE_TIME0		(1 <<  0)
#define IDE_TIM_SEC		0x42	/* IDE timings, secondary */

#define IDE_SDMA_CNT		0x48	/* Synchronous DMA control */
#define   IDE_SSDE1		(1 <<  3)
#define   IDE_SSDE0		(1 <<  2)
#define   IDE_PSDE1		(1 <<  1)
#define   IDE_PSDE0		(1 <<  0)

#define IDE_SDMA_TIM		0x4a

#define IDE_CONFIG		0x54	/* IDE I/O Configuration Register */
#define   SIG_MODE_SEC_NORMAL	(0 << 18)
#define   SIG_MODE_SEC_TRISTATE	(1 << 18)
#define   SIG_MODE_SEC_DRIVELOW	(2 << 18)
#define   SIG_MODE_PRI_NORMAL	(0 << 16)
#define   SIG_MODE_PRI_TRISTATE	(1 << 16)
#define   SIG_MODE_PRI_DRIVELOW	(2 << 16)
#define   FAST_SCB1		(1 << 15)
#define   FAST_SCB0		(1 << 14)
#define   FAST_PCB1		(1 << 13)
#define   FAST_PCB0		(1 << 12)
#define   SCB1			(1 <<  3)
#define   SCB0			(1 <<  2)
#define   PCB1			(1 <<  1)
#define   PCB0			(1 <<  0)

#define SATA_SIRI		0xa0 /* SATA Indexed Register Index */
#define SATA_SIRD		0xa4 /* SATA Indexed Register Data */
#define SATA_SP			0xd0 /* Scratchpad */

/* SATA IOBP Registers */
#define SATA_IOBP_SP0G3IR	0xea000151
#define SATA_IOBP_SP1G3IR	0xea000051

/* PCI Configuration Space (D31:F3): SMBus */
#define PCH_SMBUS_DEV		PCI_DEV(0, 0x1f, 3)
#define SMB_BASE		0x20
#define HOSTC			0x40
#define SMB_RCV_SLVA		0x09

/* HOSTC bits */
#define I2C_EN			(1 << 2)
#define SMB_SMI_EN		(1 << 1)
#define HST_EN			(1 << 0)

/* Southbridge IO BARs */

#define GPIOBASE		0x48

#define PMBASE		0x40

/* Root Complex Register Block */
#define RCBA		0xf0


#define NOINT		0
#define INTA		1
#define INTB		2
#define INTC		3
#define INTD		4

#define DIR_IDR		12	/* Interrupt D Pin Offset */
#define DIR_ICR		8	/* Interrupt C Pin Offset */
#define DIR_IBR		4	/* Interrupt B Pin Offset */
#define DIR_IAR		0	/* Interrupt A Pin Offset */

#define PIRQA		0
#define PIRQB		1
#define PIRQC		2
#define PIRQD		3
#define PIRQE		4
#define PIRQF		5
#define PIRQG		6
#define PIRQH		7

/* IO Buffer Programming */
#define IOBPIRI		0x2330
#define IOBPD		0x2334
#define IOBPS		0x2338
#define  IOBPS_RW_BX    ((1 << 9)|(1 << 10))
#define  IOBPS_WRITE_AX	((1 << 9)|(1 << 10))
#define  IOBPS_READ_AX	((1 << 8)|(1 << 9)|(1 << 10))

#define SOFT_RESET_CTRL 0x38f4
#define SOFT_RESET_DATA 0x38f8

/* USB Port Disable Override */
#define USBPDO		0x359c	/* 32bit */
/* USB Overcurrent MAP Register */
#define USBOCM1		0x35a0	/* 32bit */
#define USBOCM2		0x35a4	/* 32bit */

/* XHCI USB 3.0 */
#define XOCM		0xc0	/* 32bit */
#define XUSB2PRM	0xd4	/* 32bit */
#define USB3PRM		0xdc	/* 32bit */

/* ICH7 PMBASE */
#define PM1_STS		0x00
#define   WAK_STS	(1 << 15)
#define   PCIEXPWAK_STS	(1 << 14)
#define   PRBTNOR_STS	(1 << 11)
#define   RTC_STS	(1 << 10)
#define   PWRBTN_STS	(1 << 8)
#define   GBL_STS	(1 << 5)
#define   BM_STS	(1 << 4)
#define   TMROF_STS	(1 << 0)
#define PM1_EN		0x02
#define   PCIEXPWAK_DIS	(1 << 14)
#define   RTC_EN	(1 << 10)
#define   PWRBTN_EN	(1 << 8)
#define   GBL_EN	(1 << 5)
#define   TMROF_EN	(1 << 0)
#define PM1_CNT		0x04
#define   GBL_RLS	(1 << 2)
#define   BM_RLD	(1 << 1)
#define   SCI_EN	(1 << 0)
#define PM1_TMR		0x08
#define PROC_CNT	0x10
#define LV2		0x14
#define LV3		0x15
#define LV4		0x16
#define PM2_CNT		0x50 // mobile only
#define GPE0_STS	0x20
#define   PME_B0_STS	(1 << 13)
#define   PME_STS	(1 << 11)
#define   BATLOW_STS	(1 << 10)
#define   PCI_EXP_STS	(1 << 9)
#define   RI_STS	(1 << 8)
#define   SMB_WAK_STS	(1 << 7)
#define   TCOSCI_STS	(1 << 6)
#define   SWGPE_STS	(1 << 2)
#define   HOT_PLUG_STS	(1 << 1)
#define GPE0_EN		0x28
#define   PME_B0_EN	(1 << 13)
#define   PME_EN	(1 << 11)
#define   TCOSCI_EN	(1 << 6)
#define SMI_EN		0x30
#define   INTEL_USB2_EN	 (1 << 18) // Intel-Specific USB2 SMI logic
#define   LEGACY_USB2_EN (1 << 17) // Legacy USB2 SMI logic
#define   PERIODIC_EN	 (1 << 14) // SMI on PERIODIC_STS in SMI_STS
#define   TCO_EN	 (1 << 13) // Enable TCO Logic (BIOSWE et al)
#define   MCSMI_EN	 (1 << 11) // Trap microcontroller range access
#define   BIOS_RLS	 (1 <<  7) // asserts SCI on bit set
#define   SWSMI_TMR_EN	 (1 <<  6) // start software smi timer on bit set
#define   APMC_EN	 (1 <<  5) // Writes to APM_CNT cause SMI#
#define   SLP_SMI_EN	 (1 <<  4) // Write to SLP_EN in PM1_CNT asserts SMI#
#define   LEGACY_USB_EN  (1 <<  3) // Legacy USB circuit SMI logic
#define   BIOS_EN	 (1 <<  2) // Assert SMI# on setting GBL_RLS bit
#define   EOS		 (1 <<  1) // End of SMI (deassert SMI#)
#define   GBL_SMI_EN	 (1 <<  0) // SMI# generation at all?
#define SMI_STS		0x34
#define ALT_GP_SMI_EN	0x38
#define ALT_GP_SMI_STS	0x3a
#define GPE_CNTL	0x42
#define DEVACT_STS	0x44
#define SS_CNT		0x50
#define C3_RES		0x54
#define TCO1_STS	0x64
#define   DMISCI_STS	(1 << 9)
#define TCO2_STS	0x66
#define TCO1_CNT	0x68
#define   TCO_LOCK	(1 << 12)
#define TCO2_CNT	0x6a

/*
 * SPI Opcode Menu setup for SPIBAR lockdown
 * should support most common flash chips.
 */

#define SPI_OPMENU_0 0x01 /* WRSR: Write Status Register */
#define SPI_OPTYPE_0 0x01 /* Write, no address */

#define SPI_OPMENU_1 0x02 /* BYPR: Byte Program */
#define SPI_OPTYPE_1 0x03 /* Write, address required */

#define SPI_OPMENU_2 0x03 /* READ: Read Data */
#define SPI_OPTYPE_2 0x02 /* Read, address required */

#define SPI_OPMENU_3 0x05 /* RDSR: Read Status Register */
#define SPI_OPTYPE_3 0x00 /* Read, no address */

#define SPI_OPMENU_4 0x20 /* SE20: Sector Erase 0x20 */
#define SPI_OPTYPE_4 0x03 /* Write, address required */

#define SPI_OPMENU_5 0x9f /* RDID: Read ID */
#define SPI_OPTYPE_5 0x00 /* Read, no address */

#define SPI_OPMENU_6 0xd8 /* BED8: Block Erase 0xd8 */
#define SPI_OPTYPE_6 0x03 /* Write, address required */

#define SPI_OPMENU_7 0x0b /* FAST: Fast Read */
#define SPI_OPTYPE_7 0x02 /* Read, address required */

#define SPI_OPMENU_UPPER ((SPI_OPMENU_7 << 24) | (SPI_OPMENU_6 << 16) | \
			  (SPI_OPMENU_5 << 8) | SPI_OPMENU_4)
#define SPI_OPMENU_LOWER ((SPI_OPMENU_3 << 24) | (SPI_OPMENU_2 << 16) | \
			  (SPI_OPMENU_1 << 8) | SPI_OPMENU_0)

#define SPI_OPTYPE ((SPI_OPTYPE_7 << 14) | (SPI_OPTYPE_6 << 12) | \
		    (SPI_OPTYPE_5 << 10) | (SPI_OPTYPE_4 << 8) |  \
		    (SPI_OPTYPE_3 << 6) | (SPI_OPTYPE_2 << 4) |	  \
		    (SPI_OPTYPE_1 << 2) | (SPI_OPTYPE_0))

#define SPI_OPPREFIX ((0x50 << 8) | 0x06) /* EWSR and WREN */

#define SPIBAR_HSFS                 0x3804   /* SPI hardware sequence status */
#define  SPIBAR_HSFS_SCIP           (1 << 5) /* SPI Cycle In Progress */
#define  SPIBAR_HSFS_AEL            (1 << 2) /* SPI Access Error Log */
#define  SPIBAR_HSFS_FCERR          (1 << 1) /* SPI Flash Cycle Error */
#define  SPIBAR_HSFS_FDONE          (1 << 0) /* SPI Flash Cycle Done */
#define SPIBAR_HSFC                 0x3806   /* SPI hardware sequence control */
#define  SPIBAR_HSFC_BYTE_COUNT(c)  (((c - 1) & 0x3f) << 8)
#define  SPIBAR_HSFC_CYCLE_READ     (0 << 1) /* Read cycle */
#define  SPIBAR_HSFC_CYCLE_WRITE    (2 << 1) /* Write cycle */
#define  SPIBAR_HSFC_CYCLE_ERASE    (3 << 1) /* Erase cycle */
#define  SPIBAR_HSFC_GO             (1 << 0) /* GO: start SPI transaction */
#define SPIBAR_FADDR                0x3808   /* SPI flash address */
#define SPIBAR_FDATA(n)             (0x3810 + (4 * n)) /* SPI flash data */

#endif /* __ACPI__ */
#endif				/* SOUTHBRIDGE_INTEL_BD82X6X_PCH_H */