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/*
* pcicfg.h: PCI configuration constants and structures.
*
* Copyright (C) 1999-2017, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
*
* <<Broadcom-WL-IPTag/Open:>>
*
* $Id: pcicfg.h 514727 2014-11-12 03:02:48Z $
*/
#ifndef _h_pcicfg_
#define _h_pcicfg_
/* pci config status reg has a bit to indicate that capability ptr is present */
#define PCI_CAPPTR_PRESENT 0x0010
/* A structure for the config registers is nice, but in most
* systems the config space is not memory mapped, so we need
* field offsetts. :-(
*/
#define PCI_CFG_VID 0
#define PCI_CFG_DID 2
#define PCI_CFG_CMD 4
#define PCI_CFG_STAT 6
#define PCI_CFG_REV 8
#define PCI_CFG_PROGIF 9
#define PCI_CFG_SUBCL 0xa
#define PCI_CFG_BASECL 0xb
#define PCI_CFG_CLSZ 0xc
#define PCI_CFG_LATTIM 0xd
#define PCI_CFG_HDR 0xe
#define PCI_CFG_BIST 0xf
#define PCI_CFG_BAR0 0x10
#define PCI_CFG_BAR1 0x14
#define PCI_CFG_BAR2 0x18
#define PCI_CFG_BAR3 0x1c
#define PCI_CFG_BAR4 0x20
#define PCI_CFG_BAR5 0x24
#define PCI_CFG_CIS 0x28
#define PCI_CFG_SVID 0x2c
#define PCI_CFG_SSID 0x2e
#define PCI_CFG_ROMBAR 0x30
#define PCI_CFG_CAPPTR 0x34
#define PCI_CFG_INT 0x3c
#define PCI_CFG_PIN 0x3d
#define PCI_CFG_MINGNT 0x3e
#define PCI_CFG_MAXLAT 0x3f
#define PCI_CFG_DEVCTRL 0xd8
/* PCI CAPABILITY DEFINES */
#define PCI_CAP_POWERMGMTCAP_ID 0x01
#define PCI_CAP_MSICAP_ID 0x05
#define PCI_CAP_VENDSPEC_ID 0x09
#define PCI_CAP_PCIECAP_ID 0x10
/* Data structure to define the Message Signalled Interrupt facility
* Valid for PCI and PCIE configurations
*/
typedef struct _pciconfig_cap_msi {
uint8 capID;
uint8 nextptr;
uint16 msgctrl;
uint32 msgaddr;
} pciconfig_cap_msi;
#define MSI_ENABLE 0x1 /* bit 0 of msgctrl */
/* Data structure to define the Power managment facility
* Valid for PCI and PCIE configurations
*/
typedef struct _pciconfig_cap_pwrmgmt {
uint8 capID;
uint8 nextptr;
uint16 pme_cap;
uint16 pme_sts_ctrl;
uint8 pme_bridge_ext;
uint8 data;
} pciconfig_cap_pwrmgmt;
#define PME_CAP_PM_STATES (0x1f << 27) /* Bits 31:27 states that can generate PME */
#define PME_CSR_OFFSET 0x4 /* 4-bytes offset */
#define PME_CSR_PME_EN (1 << 8) /* Bit 8 Enable generating of PME */
#define PME_CSR_PME_STAT (1 << 15) /* Bit 15 PME got asserted */
/* Data structure to define the PCIE capability */
typedef struct _pciconfig_cap_pcie {
uint8 capID;
uint8 nextptr;
uint16 pcie_cap;
uint32 dev_cap;
uint16 dev_ctrl;
uint16 dev_status;
uint32 link_cap;
uint16 link_ctrl;
uint16 link_status;
uint32 slot_cap;
uint16 slot_ctrl;
uint16 slot_status;
uint16 root_ctrl;
uint16 root_cap;
uint32 root_status;
} pciconfig_cap_pcie;
/* PCIE Enhanced CAPABILITY DEFINES */
#define PCIE_EXTCFG_OFFSET 0x100
#define PCIE_ADVERRREP_CAPID 0x0001
#define PCIE_VC_CAPID 0x0002
#define PCIE_DEVSNUM_CAPID 0x0003
#define PCIE_PWRBUDGET_CAPID 0x0004
/* PCIE Extended configuration */
#define PCIE_ADV_CORR_ERR_MASK 0x114
#define CORR_ERR_RE (1 << 0) /* Receiver */
#define CORR_ERR_BT (1 << 6) /* Bad TLP */
#define CORR_ERR_BD (1 << 7) /* Bad DLLP */
#define CORR_ERR_RR (1 << 8) /* REPLAY_NUM rollover */
#define CORR_ERR_RT (1 << 12) /* Reply timer timeout */
#define ALL_CORR_ERRORS (CORR_ERR_RE | CORR_ERR_BT | CORR_ERR_BD | \
CORR_ERR_RR | CORR_ERR_RT)
/* PCIE Root Control Register bits (Host mode only) */
#define PCIE_RC_CORR_SERR_EN 0x0001
#define PCIE_RC_NONFATAL_SERR_EN 0x0002
#define PCIE_RC_FATAL_SERR_EN 0x0004
#define PCIE_RC_PME_INT_EN 0x0008
#define PCIE_RC_CRS_EN 0x0010
/* PCIE Root Capability Register bits (Host mode only) */
#define PCIE_RC_CRS_VISIBILITY 0x0001
/* Header to define the PCIE specific capabilities in the extended config space */
typedef struct _pcie_enhanced_caphdr {
uint16 capID;
uint16 cap_ver : 4;
uint16 next_ptr : 12;
} pcie_enhanced_caphdr;
#define PCI_BAR0_WIN 0x80 /* backplane addres space accessed by BAR0 */
#define PCI_BAR1_WIN 0x84 /* backplane addres space accessed by BAR1 */
#define PCI_SPROM_CONTROL 0x88 /* sprom property control */
#define PCI_BAR1_CONTROL 0x8c /* BAR1 region burst control */
#define PCI_INT_STATUS 0x90 /* PCI and other cores interrupts */
#define PCI_INT_MASK 0x94 /* mask of PCI and other cores interrupts */
#define PCI_TO_SB_MB 0x98 /* signal backplane interrupts */
#define PCI_BACKPLANE_ADDR 0xa0 /* address an arbitrary location on the system backplane */
#define PCI_BACKPLANE_DATA 0xa4 /* data at the location specified by above address */
#define PCI_CLK_CTL_ST 0xa8 /* pci config space clock control/status (>=rev14) */
#define PCI_BAR0_WIN2 0xac /* backplane addres space accessed by second 4KB of BAR0 */
#define PCI_GPIO_IN 0xb0 /* pci config space gpio input (>=rev3) */
#define PCI_GPIO_OUT 0xb4 /* pci config space gpio output (>=rev3) */
#define PCI_GPIO_OUTEN 0xb8 /* pci config space gpio output enable (>=rev3) */
#define PCI_L1SS_CTRL2 0x24c /* The L1 PM Substates Control register */
/* Private Registers */
#define PCI_STAT_CTRL 0xa80
#define PCI_L0_EVENTCNT 0xa84
#define PCI_L0_STATETMR 0xa88
#define PCI_L1_EVENTCNT 0xa8c
#define PCI_L1_STATETMR 0xa90
#define PCI_L1_1_EVENTCNT 0xa94
#define PCI_L1_1_STATETMR 0xa98
#define PCI_L1_2_EVENTCNT 0xa9c
#define PCI_L1_2_STATETMR 0xaa0
#define PCI_L2_EVENTCNT 0xaa4
#define PCI_L2_STATETMR 0xaa8
#define PCI_PMCR_REFUP 0x1814 /* Trefup time */
#define PCI_PMCR_REFUP_EXT 0x1818 /* Trefup extend Max */
#define PCI_TPOWER_SCALE_MASK 0x3
#define PCI_TPOWER_SCALE_SHIFT 3 /* 0:1 is scale and 2 is rsvd */
#define PCI_BAR0_SHADOW_OFFSET (2 * 1024) /* bar0 + 2K accesses sprom shadow (in pci core) */
#define PCI_BAR0_SPROM_OFFSET (4 * 1024) /* bar0 + 4K accesses external sprom */
#define PCI_BAR0_PCIREGS_OFFSET (6 * 1024) /* bar0 + 6K accesses pci core registers */
#define PCI_BAR0_PCISBR_OFFSET (4 * 1024) /* pci core SB registers are at the end of the
* 8KB window, so their address is the "regular"
* address plus 4K
*/
/*
* PCIE GEN2 changed some of the above locations for
* Bar0WrapperBase, SecondaryBAR0Window and SecondaryBAR0WrapperBase
* BAR0 maps 32K of register space
*/
#define PCIE2_BAR0_WIN2 0x70 /* backplane addres space accessed by second 4KB of BAR0 */
#define PCIE2_BAR0_CORE2_WIN 0x74 /* backplane addres space accessed by second 4KB of BAR0 */
#define PCIE2_BAR0_CORE2_WIN2 0x78 /* backplane addres space accessed by second 4KB of BAR0 */
#define PCI_BAR0_WINSZ (16 * 1024) /* bar0 window size Match with corerev 13 */
/* On pci corerev >= 13 and all pcie, the bar0 is now 16KB and it maps: */
#define PCI_16KB0_PCIREGS_OFFSET (8 * 1024) /* bar0 + 8K accesses pci/pcie core registers */
#define PCI_16KB0_CCREGS_OFFSET (12 * 1024) /* bar0 + 12K accesses chipc core registers */
#define PCI_16KBB0_WINSZ (16 * 1024) /* bar0 window size */
#define PCI_SECOND_BAR0_OFFSET (16 * 1024) /* secondary bar 0 window */
/* Header types */
#define PCI_HEADER_MULTI 0x80
#define PCI_HEADER_MASK 0x7f
typedef enum {
PCI_HEADER_NORMAL,
PCI_HEADER_BRIDGE,
PCI_HEADER_CARDBUS
} pci_header_types;
#define PCI_CONFIG_SPACE_SIZE 256
#define DWORD_ALIGN(x) (x & ~(0x03))
#define BYTE_POS(x) (x & 0x3)
#define WORD_POS(x) (x & 0x1)
#define BYTE_SHIFT(x) (8 * BYTE_POS(x))
#define WORD_SHIFT(x) (16 * WORD_POS(x))
#define BYTE_VAL(a, x) ((a >> BYTE_SHIFT(x)) & 0xFF)
#define WORD_VAL(a, x) ((a >> WORD_SHIFT(x)) & 0xFFFF)
#define read_pci_cfg_byte(a) \
(BYTE_VAL(OSL_PCI_READ_CONFIG(osh, DWORD_ALIGN(a), 4), a) & 0xff)
#define read_pci_cfg_word(a) \
(WORD_VAL(OSL_PCI_READ_CONFIG(osh, DWORD_ALIGN(a), 4), a) & 0xffff)
#define write_pci_cfg_byte(a, val) do { \
uint32 tmpval; \
tmpval = (OSL_PCI_READ_CONFIG(osh, DWORD_ALIGN(a), 4) & ~0xFF << BYTE_POS(a)) | \
val << BYTE_POS(a); \
OSL_PCI_WRITE_CONFIG(osh, DWORD_ALIGN(a), 4, tmpval); \
} while (0)
#define write_pci_cfg_word(a, val) do { \
uint32 tmpval; \
tmpval = (OSL_PCI_READ_CONFIG(osh, DWORD_ALIGN(a), 4) & ~0xFFFF << WORD_POS(a)) | \
val << WORD_POS(a); \
OSL_PCI_WRITE_CONFIG(osh, DWORD_ALIGN(a), 4, tmpval); \
} while (0)
#endif /* _h_pcicfg_ */
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