*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Copyright (c) 2021 Maciej W. Rozycki <macro@orcam.me.uk>
*/
#ifndef _PCI_H
#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
#define PCI_CLASS_DEVICE 0x0a /* Device class */
#define PCI_CLASS_CODE 0x0b /* Device class code */
-#define PCI_CLASS_CODE_TOO_OLD 0x00
-#define PCI_CLASS_CODE_STORAGE 0x01
-#define PCI_CLASS_CODE_NETWORK 0x02
-#define PCI_CLASS_CODE_DISPLAY 0x03
-#define PCI_CLASS_CODE_MULTIMEDIA 0x04
-#define PCI_CLASS_CODE_MEMORY 0x05
-#define PCI_CLASS_CODE_BRIDGE 0x06
-#define PCI_CLASS_CODE_COMM 0x07
-#define PCI_CLASS_CODE_PERIPHERAL 0x08
-#define PCI_CLASS_CODE_INPUT 0x09
-#define PCI_CLASS_CODE_DOCKING 0x0A
-#define PCI_CLASS_CODE_PROCESSOR 0x0B
-#define PCI_CLASS_CODE_SERIAL 0x0C
-#define PCI_CLASS_CODE_WIRELESS 0x0D
-#define PCI_CLASS_CODE_I2O 0x0E
-#define PCI_CLASS_CODE_SATELLITE 0x0F
-#define PCI_CLASS_CODE_CRYPTO 0x10
-#define PCI_CLASS_CODE_DATA 0x11
-/* Base Class 0x12 - 0xFE is reserved */
-#define PCI_CLASS_CODE_OTHER 0xFF
-
#define PCI_CLASS_SUB_CODE 0x0a /* Device sub-class code */
-#define PCI_CLASS_SUB_CODE_TOO_OLD_NOTVGA 0x00
-#define PCI_CLASS_SUB_CODE_TOO_OLD_VGA 0x01
-#define PCI_CLASS_SUB_CODE_STORAGE_SCSI 0x00
-#define PCI_CLASS_SUB_CODE_STORAGE_IDE 0x01
-#define PCI_CLASS_SUB_CODE_STORAGE_FLOPPY 0x02
-#define PCI_CLASS_SUB_CODE_STORAGE_IPIBUS 0x03
-#define PCI_CLASS_SUB_CODE_STORAGE_RAID 0x04
-#define PCI_CLASS_SUB_CODE_STORAGE_ATA 0x05
-#define PCI_CLASS_SUB_CODE_STORAGE_SATA 0x06
-#define PCI_CLASS_SUB_CODE_STORAGE_SAS 0x07
-#define PCI_CLASS_SUB_CODE_STORAGE_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_NETWORK_ETHERNET 0x00
-#define PCI_CLASS_SUB_CODE_NETWORK_TOKENRING 0x01
-#define PCI_CLASS_SUB_CODE_NETWORK_FDDI 0x02
-#define PCI_CLASS_SUB_CODE_NETWORK_ATM 0x03
-#define PCI_CLASS_SUB_CODE_NETWORK_ISDN 0x04
-#define PCI_CLASS_SUB_CODE_NETWORK_WORLDFIP 0x05
-#define PCI_CLASS_SUB_CODE_NETWORK_PICMG 0x06
-#define PCI_CLASS_SUB_CODE_NETWORK_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_DISPLAY_VGA 0x00
-#define PCI_CLASS_SUB_CODE_DISPLAY_XGA 0x01
-#define PCI_CLASS_SUB_CODE_DISPLAY_3D 0x02
-#define PCI_CLASS_SUB_CODE_DISPLAY_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_MULTIMEDIA_VIDEO 0x00
-#define PCI_CLASS_SUB_CODE_MULTIMEDIA_AUDIO 0x01
-#define PCI_CLASS_SUB_CODE_MULTIMEDIA_PHONE 0x02
-#define PCI_CLASS_SUB_CODE_MULTIMEDIA_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_MEMORY_RAM 0x00
-#define PCI_CLASS_SUB_CODE_MEMORY_FLASH 0x01
-#define PCI_CLASS_SUB_CODE_MEMORY_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_BRIDGE_HOST 0x00
-#define PCI_CLASS_SUB_CODE_BRIDGE_ISA 0x01
-#define PCI_CLASS_SUB_CODE_BRIDGE_EISA 0x02
-#define PCI_CLASS_SUB_CODE_BRIDGE_MCA 0x03
-#define PCI_CLASS_SUB_CODE_BRIDGE_PCI 0x04
-#define PCI_CLASS_SUB_CODE_BRIDGE_PCMCIA 0x05
-#define PCI_CLASS_SUB_CODE_BRIDGE_NUBUS 0x06
-#define PCI_CLASS_SUB_CODE_BRIDGE_CARDBUS 0x07
-#define PCI_CLASS_SUB_CODE_BRIDGE_RACEWAY 0x08
-#define PCI_CLASS_SUB_CODE_BRIDGE_SEMI_PCI 0x09
-#define PCI_CLASS_SUB_CODE_BRIDGE_INFINIBAND 0x0A
-#define PCI_CLASS_SUB_CODE_BRIDGE_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_COMM_SERIAL 0x00
-#define PCI_CLASS_SUB_CODE_COMM_PARALLEL 0x01
-#define PCI_CLASS_SUB_CODE_COMM_MULTIPORT 0x02
-#define PCI_CLASS_SUB_CODE_COMM_MODEM 0x03
-#define PCI_CLASS_SUB_CODE_COMM_GPIB 0x04
-#define PCI_CLASS_SUB_CODE_COMM_SMARTCARD 0x05
-#define PCI_CLASS_SUB_CODE_COMM_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_PIC 0x00
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_DMA 0x01
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_TIMER 0x02
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_RTC 0x03
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_HOTPLUG 0x04
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_SD 0x05
-#define PCI_CLASS_SUB_CODE_PERIPHERAL_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_INPUT_KEYBOARD 0x00
-#define PCI_CLASS_SUB_CODE_INPUT_DIGITIZER 0x01
-#define PCI_CLASS_SUB_CODE_INPUT_MOUSE 0x02
-#define PCI_CLASS_SUB_CODE_INPUT_SCANNER 0x03
-#define PCI_CLASS_SUB_CODE_INPUT_GAMEPORT 0x04
-#define PCI_CLASS_SUB_CODE_INPUT_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_DOCKING_GENERIC 0x00
-#define PCI_CLASS_SUB_CODE_DOCKING_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_PROCESSOR_386 0x00
-#define PCI_CLASS_SUB_CODE_PROCESSOR_486 0x01
-#define PCI_CLASS_SUB_CODE_PROCESSOR_PENTIUM 0x02
-#define PCI_CLASS_SUB_CODE_PROCESSOR_ALPHA 0x10
-#define PCI_CLASS_SUB_CODE_PROCESSOR_POWERPC 0x20
-#define PCI_CLASS_SUB_CODE_PROCESSOR_MIPS 0x30
-#define PCI_CLASS_SUB_CODE_PROCESSOR_COPROC 0x40
-#define PCI_CLASS_SUB_CODE_SERIAL_1394 0x00
-#define PCI_CLASS_SUB_CODE_SERIAL_ACCESSBUS 0x01
-#define PCI_CLASS_SUB_CODE_SERIAL_SSA 0x02
-#define PCI_CLASS_SUB_CODE_SERIAL_USB 0x03
-#define PCI_CLASS_SUB_CODE_SERIAL_FIBRECHAN 0x04
-#define PCI_CLASS_SUB_CODE_SERIAL_SMBUS 0x05
-#define PCI_CLASS_SUB_CODE_SERIAL_INFINIBAND 0x06
-#define PCI_CLASS_SUB_CODE_SERIAL_IPMI 0x07
-#define PCI_CLASS_SUB_CODE_SERIAL_SERCOS 0x08
-#define PCI_CLASS_SUB_CODE_SERIAL_CANBUS 0x09
-#define PCI_CLASS_SUB_CODE_WIRELESS_IRDA 0x00
-#define PCI_CLASS_SUB_CODE_WIRELESS_IR 0x01
-#define PCI_CLASS_SUB_CODE_WIRELESS_RF 0x10
-#define PCI_CLASS_SUB_CODE_WIRELESS_BLUETOOTH 0x11
-#define PCI_CLASS_SUB_CODE_WIRELESS_BROADBAND 0x12
-#define PCI_CLASS_SUB_CODE_WIRELESS_80211A 0x20
-#define PCI_CLASS_SUB_CODE_WIRELESS_80211B 0x21
-#define PCI_CLASS_SUB_CODE_WIRELESS_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_I2O_V1_0 0x00
-#define PCI_CLASS_SUB_CODE_SATELLITE_TV 0x01
-#define PCI_CLASS_SUB_CODE_SATELLITE_AUDIO 0x02
-#define PCI_CLASS_SUB_CODE_SATELLITE_VOICE 0x03
-#define PCI_CLASS_SUB_CODE_SATELLITE_DATA 0x04
-#define PCI_CLASS_SUB_CODE_CRYPTO_NETWORK 0x00
-#define PCI_CLASS_SUB_CODE_CRYPTO_ENTERTAINMENT 0x10
-#define PCI_CLASS_SUB_CODE_CRYPTO_OTHER 0x80
-#define PCI_CLASS_SUB_CODE_DATA_DPIO 0x00
-#define PCI_CLASS_SUB_CODE_DATA_PERFCNTR 0x01
-#define PCI_CLASS_SUB_CODE_DATA_COMMSYNC 0x10
-#define PCI_CLASS_SUB_CODE_DATA_MGMT 0x20
-#define PCI_CLASS_SUB_CODE_DATA_OTHER 0x80
#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
#define PCI_EA_FIRST_ENT 4 /* First EA Entry in List */
#define PCI_EA_ES 0x00000007 /* Entry Size */
#define PCI_EA_BEI 0x000000f0 /* BAR Equivalent Indicator */
+/* 9-14 map to VF BARs 0-5 respectively */
+#define PCI_EA_BEI_VF_BAR0 9
+#define PCI_EA_BEI_VF_BAR5 14
/* Base, MaxOffset registers */
/* bit 0 is reserved */
#define PCI_EA_IS_64 0x00000002 /* 64-bit field flag */
/* PCI Express capabilities */
#define PCI_EXP_FLAGS 2 /* Capabilities register */
+#define PCI_EXP_FLAGS_VERS 0x000f /* Capability Version */
#define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */
-#define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
+#define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
+#define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
+#define PCI_EXP_TYPE_PCIE_BRIDGE 0x8 /* PCI/PCI-X to PCIe Bridge */
#define PCI_EXP_DEVCAP 4 /* Device capabilities */
#define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */
#define PCI_EXP_DEVCTL 8 /* Device Control */
+#define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */
+#define PCI_EXP_DEVCTL_PAYLOAD_128B 0x0000 /* 128 Bytes */
+#define PCI_EXP_DEVCTL_PAYLOAD_256B 0x0020 /* 256 Bytes */
+#define PCI_EXP_DEVCTL_PAYLOAD_512B 0x0040 /* 512 Bytes */
+#define PCI_EXP_DEVCTL_PAYLOAD_1024B 0x0060 /* 1024 Bytes */
+#define PCI_EXP_DEVCTL_PAYLOAD_2048B 0x0080 /* 2048 Bytes */
+#define PCI_EXP_DEVCTL_PAYLOAD_4096B 0x00a0 /* 4096 Bytes */
+#define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
+#define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */
+#define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */
+#define PCI_EXP_DEVCTL_READRQ_128B 0x0000 /* 128 Bytes */
+#define PCI_EXP_DEVCTL_READRQ_256B 0x1000 /* 256 Bytes */
+#define PCI_EXP_DEVCTL_READRQ_512B 0x2000 /* 512 Bytes */
+#define PCI_EXP_DEVCTL_READRQ_1024B 0x3000 /* 1024 Bytes */
+#define PCI_EXP_DEVCTL_READRQ_2048B 0x4000 /* 2048 Bytes */
+#define PCI_EXP_DEVCTL_READRQ_4096B 0x5000 /* 4096 Bytes */
#define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */
#define PCI_EXP_LNKCAP 12 /* Link Capabilities */
#define PCI_EXP_LNKCAP_SLS 0x0000000f /* Supported Link Speeds */
+#define PCI_EXP_LNKCAP_SLS_2_5GB 0x00000001 /* LNKCAP2 SLS Vector bit 0 */
+#define PCI_EXP_LNKCAP_SLS_5_0GB 0x00000002 /* LNKCAP2 SLS Vector bit 1 */
+#define PCI_EXP_LNKCAP_SLS_8_0GB 0x00000003 /* LNKCAP2 SLS Vector bit 2 */
#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */
#define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */
+#define PCI_EXP_LNKCTL 16 /* Link Control */
+#define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */
#define PCI_EXP_LNKSTA 18 /* Link Status */
#define PCI_EXP_LNKSTA_CLS 0x000f /* Current Link Speed */
#define PCI_EXP_LNKSTA_CLS_2_5GB 0x0001 /* Current Link Speed 2.5GT/s */
#define PCI_EXP_LNKSTA_CLS_8_0GB 0x0003 /* Current Link Speed 8.0GT/s */
#define PCI_EXP_LNKSTA_NLW 0x03f0 /* Negotiated Link Width */
#define PCI_EXP_LNKSTA_NLW_SHIFT 4 /* start of NLW mask in link status */
+#define PCI_EXP_LNKSTA_LT 0x0800 /* Link Training */
#define PCI_EXP_LNKSTA_DLLLA 0x2000 /* Data Link Layer Link Active */
+#define PCI_EXP_LNKSTA_LBMS 0x4000 /* Link Bandwidth Management Status */
#define PCI_EXP_SLTCAP 20 /* Slot Capabilities */
#define PCI_EXP_SLTCAP_PSN 0xfff80000 /* Physical Slot Number */
+#define PCI_EXP_RTCTL 28 /* Root Control */
+#define PCI_EXP_RTCTL_CRSSVE 0x0010 /* CRS Software Visibility Enable */
+#define PCI_EXP_RTCAP 30 /* Root Capabilities */
+#define PCI_EXP_RTCAP_CRSVIS 0x0001 /* CRS Software Visibility capability */
+#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */
+#define PCI_EXP_DEVCAP2_ARI 0x00000020 /* ARI Forwarding Supported */
+#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */
+#define PCI_EXP_DEVCTL2_ARI 0x0020 /* Alternative Routing-ID */
+#define PCI_EXP_LNKCAP2 44 /* Link Capability 2 */
+#define PCI_EXP_LNKCAP2_SLS 0x000000fe /* Supported Link Speeds Vector */
#define PCI_EXP_LNKCTL2 48 /* Link Control 2 */
+#define PCI_EXP_LNKCTL2_TLS 0x000f /* Target Link Speed */
+#define PCI_EXP_LNKCTL2_TLS_2_5GT 0x0001 /* Target Link Speed 2.5GT/s */
+#define PCI_EXP_LNKCTL2_TLS_5_0GT 0x0002 /* Target Link Speed 5.0GT/s */
+#define PCI_EXP_LNKCTL2_TLS_8_0GT 0x0003 /* Target Link Speed 8.0GT/s */
+
+/* Advanced Error Reporting */
+#define PCI_ERR_CAP 24 /* Advanced Error Capabilities */
+#define PCI_ERR_CAP_FEP(x) ((x) & 31) /* First Error Pointer */
+#define PCI_ERR_CAP_ECRC_GENC 0x00000020 /* ECRC Generation Capable */
+#define PCI_ERR_CAP_ECRC_GENE 0x00000040 /* ECRC Generation Enable */
+#define PCI_ERR_CAP_ECRC_CHKC 0x00000080 /* ECRC Check Capable */
+#define PCI_ERR_CAP_ECRC_CHKE 0x00000100 /* ECRC Check Enable */
+
+/* Single Root I/O Virtualization Registers */
+#define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */
+#define PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */
+#define PCI_SRIOV_CTRL_VFE 0x01 /* VF Enable */
+#define PCI_SRIOV_CTRL_MSE 0x08 /* VF Memory Space Enable */
+#define PCI_SRIOV_CTRL_ARI 0x10 /* ARI Capable Hierarchy */
+#define PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */
+#define PCI_SRIOV_TOTAL_VF 0x0e /* Total VFs */
+#define PCI_SRIOV_NUM_VF 0x10 /* Number of VFs */
+#define PCI_SRIOV_VF_OFFSET 0x14 /* First VF Offset */
+#define PCI_SRIOV_VF_STRIDE 0x16 /* Following VF Stride */
+#define PCI_SRIOV_VF_DID 0x1a /* VF Device ID */
/* Include the ID list */
#include <pci_ids.h>
+/*
+ * Config Address for PCI Configuration Mechanism #1
+ *
+ * See PCI Local Bus Specification, Revision 3.0,
+ * Section 3.2.2.3.2, Figure 3-2, p. 50.
+ */
+
+#define PCI_CONF1_BUS_SHIFT 16 /* Bus number */
+#define PCI_CONF1_DEV_SHIFT 11 /* Device number */
+#define PCI_CONF1_FUNC_SHIFT 8 /* Function number */
+
+#define PCI_CONF1_BUS_MASK 0xff
+#define PCI_CONF1_DEV_MASK 0x1f
+#define PCI_CONF1_FUNC_MASK 0x7
+#define PCI_CONF1_REG_MASK 0xfc /* Limit aligned offset to a maximum of 256B */
+
+#define PCI_CONF1_ENABLE BIT(31)
+#define PCI_CONF1_BUS(x) (((x) & PCI_CONF1_BUS_MASK) << PCI_CONF1_BUS_SHIFT)
+#define PCI_CONF1_DEV(x) (((x) & PCI_CONF1_DEV_MASK) << PCI_CONF1_DEV_SHIFT)
+#define PCI_CONF1_FUNC(x) (((x) & PCI_CONF1_FUNC_MASK) << PCI_CONF1_FUNC_SHIFT)
+#define PCI_CONF1_REG(x) ((x) & PCI_CONF1_REG_MASK)
+
+#define PCI_CONF1_ADDRESS(bus, dev, func, reg) \
+ (PCI_CONF1_ENABLE | \
+ PCI_CONF1_BUS(bus) | \
+ PCI_CONF1_DEV(dev) | \
+ PCI_CONF1_FUNC(func) | \
+ PCI_CONF1_REG(reg))
+
+/*
+ * Extension of PCI Config Address for accessing extended PCIe registers
+ *
+ * No standardized specification, but used on lot of non-ECAM-compliant ARM SoCs
+ * or on AMD Barcelona and new CPUs. Reserved bits [27:24] of PCI Config Address
+ * are used for specifying additional 4 high bits of PCI Express register.
+ */
+
+#define PCI_CONF1_EXT_REG_SHIFT 16
+#define PCI_CONF1_EXT_REG_MASK 0xf00
+#define PCI_CONF1_EXT_REG(x) (((x) & PCI_CONF1_EXT_REG_MASK) << PCI_CONF1_EXT_REG_SHIFT)
+
+#define PCI_CONF1_EXT_ADDRESS(bus, dev, func, reg) \
+ (PCI_CONF1_ADDRESS(bus, dev, func, reg) | \
+ PCI_CONF1_EXT_REG(reg))
+
+/*
+ * Enhanced Configuration Access Mechanism (ECAM)
+ *
+ * See PCI Express Base Specification, Revision 5.0, Version 1.0,
+ * Section 7.2.2, Table 7-1, p. 677.
+ */
+#define PCIE_ECAM_BUS_SHIFT 20 /* Bus number */
+#define PCIE_ECAM_DEV_SHIFT 15 /* Device number */
+#define PCIE_ECAM_FUNC_SHIFT 12 /* Function number */
+
+#define PCIE_ECAM_BUS_MASK 0xff
+#define PCIE_ECAM_DEV_MASK 0x1f
+#define PCIE_ECAM_FUNC_MASK 0x7
+#define PCIE_ECAM_REG_MASK 0xfff /* Limit offset to a maximum of 4K */
+
+#define PCIE_ECAM_BUS(x) (((x) & PCIE_ECAM_BUS_MASK) << PCIE_ECAM_BUS_SHIFT)
+#define PCIE_ECAM_DEV(x) (((x) & PCIE_ECAM_DEV_MASK) << PCIE_ECAM_DEV_SHIFT)
+#define PCIE_ECAM_FUNC(x) (((x) & PCIE_ECAM_FUNC_MASK) << PCIE_ECAM_FUNC_SHIFT)
+#define PCIE_ECAM_REG(x) ((x) & PCIE_ECAM_REG_MASK)
+
+#define PCIE_ECAM_OFFSET(bus, dev, func, where) \
+ (PCIE_ECAM_BUS(bus) | \
+ PCIE_ECAM_DEV(dev) | \
+ PCIE_ECAM_FUNC(func) | \
+ PCIE_ECAM_REG(where))
+
#ifndef __ASSEMBLY__
#include <dm/pci.h>
#define PCI_MASK_BUS(bdf) ((bdf) & 0xffff)
#define PCI_ADD_BUS(bus, devfn) (((bus) << 16) | (devfn))
#define PCI_BDF(b, d, f) ((b) << 16 | PCI_DEVFN(d, f))
-#define PCI_VENDEV(v, d) (((v) << 16) | (d))
#define PCI_ANY_ID (~0)
/* Convert from Linux format to U-Boot format */
extern void pci_cfgfunc_config_device(struct pci_controller* hose, pci_dev_t dev,
struct pci_config_table *);
-#define MAX_PCI_REGIONS 7
-
#define INDIRECT_TYPE_NO_PCIE_LINK 1
/**
* about a small subset of PCI devices. This is normally false.
*/
struct pci_controller {
-#ifdef CONFIG_DM_PCI
struct udevice *bus;
struct udevice *ctlr;
bool skip_auto_config_until_reloc;
-#else
- struct pci_controller *next;
-#endif
int first_busno;
int last_busno;
* for PCI controllers and a separate UCLASS (or perhaps
* UCLASS_PCI_GENERIC) is used for bridges.
*/
- struct pci_region regions[MAX_PCI_REGIONS];
+ struct pci_region *regions;
int region_count;
struct pci_config_table *config_table;
void (*fixup_irq)(struct pci_controller *, pci_dev_t);
-#ifndef CONFIG_DM_PCI
- /* Low-level architecture-dependent routines */
- int (*read_byte)(struct pci_controller*, pci_dev_t, int where, u8 *);
- int (*read_word)(struct pci_controller*, pci_dev_t, int where, u16 *);
- int (*read_dword)(struct pci_controller*, pci_dev_t, int where, u32 *);
- int (*write_byte)(struct pci_controller*, pci_dev_t, int where, u8);
- int (*write_word)(struct pci_controller*, pci_dev_t, int where, u16);
- int (*write_dword)(struct pci_controller*, pci_dev_t, int where, u32);
-#endif
/* Used by auto config */
struct pci_region *pci_mem, *pci_io, *pci_prefetch;
-
-#ifndef CONFIG_DM_PCI
- int current_busno;
-
- void *priv_data;
-#endif
};
-#ifndef CONFIG_DM_PCI
-static inline void pci_set_ops(struct pci_controller *hose,
- int (*read_byte)(struct pci_controller*,
- pci_dev_t, int where, u8 *),
- int (*read_word)(struct pci_controller*,
- pci_dev_t, int where, u16 *),
- int (*read_dword)(struct pci_controller*,
- pci_dev_t, int where, u32 *),
- int (*write_byte)(struct pci_controller*,
- pci_dev_t, int where, u8),
- int (*write_word)(struct pci_controller*,
- pci_dev_t, int where, u16),
- int (*write_dword)(struct pci_controller*,
- pci_dev_t, int where, u32)) {
- hose->read_byte = read_byte;
- hose->read_word = read_word;
- hose->read_dword = read_dword;
- hose->write_byte = write_byte;
- hose->write_word = write_word;
- hose->write_dword = write_dword;
-}
-#endif
-
-#ifdef CONFIG_PCI_INDIRECT_BRIDGE
-extern void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data);
-#endif
-
-#if !defined(CONFIG_DM_PCI) || defined(CONFIG_DM_PCI_COMPAT)
+#if defined(CONFIG_DM_PCI_COMPAT)
extern phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose,
pci_addr_t addr, unsigned long flags);
extern pci_addr_t pci_hose_phys_to_bus(struct pci_controller* hose,
pci_dev_t dev, int where, u32 val);
#endif
-#ifndef CONFIG_DM_PCI
-extern int pci_read_config_byte(pci_dev_t dev, int where, u8 *val);
-extern int pci_read_config_word(pci_dev_t dev, int where, u16 *val);
-extern int pci_read_config_dword(pci_dev_t dev, int where, u32 *val);
-extern int pci_write_config_byte(pci_dev_t dev, int where, u8 val);
-extern int pci_write_config_word(pci_dev_t dev, int where, u16 val);
-extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val);
-#endif
-
void pciauto_region_init(struct pci_region *res);
void pciauto_region_align(struct pci_region *res, pci_size_t size);
void pciauto_config_init(struct pci_controller *hose);
* @size: Amount of bytes to allocate
* @bar: Returns the PCI bus address of the allocated resource
* @supports_64bit: Whether to allow allocations above the 32-bit boundary
- * @return 0 if successful, -1 on failure
+ * Return: 0 if successful, -1 on failure
*/
int pciauto_region_allocate(struct pci_region *res, pci_size_t size,
pci_addr_t *bar, bool supports_64bit);
+int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev);
-#if !defined(CONFIG_DM_PCI) || defined(CONFIG_DM_PCI_COMPAT)
+#if defined(CONFIG_DM_PCI_COMPAT)
extern int pci_hose_read_config_byte_via_dword(struct pci_controller *hose,
pci_dev_t dev, int where, u8 *val);
extern int pci_hose_read_config_word_via_dword(struct pci_controller *hose,
extern struct pci_controller *find_hose_by_cfg_addr(void *cfg_addr);
extern struct pci_controller *pci_get_hose_head(void);
-extern int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev);
extern int pci_hose_scan(struct pci_controller *hose);
extern int pci_hose_scan_bus(struct pci_controller *hose, int bus);
int pci_hose_find_ext_capability(struct pci_controller *hose,
pci_dev_t dev, int cap);
-#ifdef CONFIG_PCI_FIXUP_DEV
-extern void board_pci_fixup_dev(struct pci_controller *hose, pci_dev_t dev,
- unsigned short vendor,
- unsigned short device,
- unsigned short class);
-#endif
-#endif /* !defined(CONFIG_DM_PCI) || defined(CONFIG_DM_PCI_COMPAT) */
+#endif /* defined(CONFIG_DM_PCI_COMPAT) */
const char * pci_class_str(u8 class);
int pci_last_busno(void);
extern void pci_mpc85xx_init (struct pci_controller *hose);
#endif
-#ifdef CONFIG_PCIE_IMX
-extern void imx_pcie_remove(void);
-#endif
-
-#if !defined(CONFIG_DM_PCI) || defined(CONFIG_DM_PCI_COMPAT)
/**
* pci_write_bar32() - Write the address of a BAR including control bits
*
* with devices which require hard-coded addresses, not part of the normal
* PCI enumeration process.
*
+ * This is only available if CONFIG_DM_PCI_COMPAT is enabled
+ *
* @hose: PCI hose to use
* @dev: PCI device to update
* @barnum: BAR number (0-5)
/**
* pci_read_bar32() - read the address of a bar
*
+ * This is only available if CONFIG_DM_PCI_COMPAT is enabled
+ *
* @hose: PCI hose to use
* @dev: PCI device to inspect
* @barnum: BAR number (0-5)
- * @return address of the bar, masking out any control bits
+ * Return: address of the bar, masking out any control bits
* */
u32 pci_read_bar32(struct pci_controller *hose, pci_dev_t dev, int barnum);
/**
* pci_hose_find_devices() - Find devices by vendor/device ID
*
+ * This is only available if CONFIG_DM_PCI_COMPAT is enabled
+ *
* @hose: PCI hose to search
* @busnum: Bus number to search
* @ids: PCI vendor/device IDs to look for, terminated by 0, 0 record
*/
pci_dev_t pci_hose_find_devices(struct pci_controller *hose, int busnum,
struct pci_device_id *ids, int *indexp);
-#endif /* !CONFIG_DM_PCI || CONFIG_DM_PCI_COMPAT */
/* Access sizes for PCI reads and writes */
enum pci_size_t {
struct udevice;
-#ifdef CONFIG_DM_PCI
/**
- * struct pci_child_platdata - information stored about each PCI device
+ * struct pci_child_plat - information stored about each PCI device
*
* Every device on a PCI bus has this per-child data.
*
- * It can be accessed using dev_get_parent_platdata(dev) if dev->parent is a
+ * It can be accessed using dev_get_parent_plat(dev) if dev->parent is a
* PCI bus (i.e. UCLASS_PCI)
*
* @devfn: Encoded device and function index - see PCI_DEVFN()
* @vendor: PCI vendor ID (see pci_ids.h)
* @device: PCI device ID (see pci_ids.h)
* @class: PCI class, 3 bytes: (base, sub, prog-if)
+ * @is_virtfn: True for Virtual Function device
+ * @pfdev: Handle to Physical Function device
+ * @virtid: Virtual Function Index
*/
-struct pci_child_platdata {
+struct pci_child_plat {
int devfn;
unsigned short vendor;
unsigned short device;
unsigned int class;
+
+ /* Variables for CONFIG_PCI_SRIOV */
+ bool is_virtfn;
+ struct udevice *pfdev;
+ int virtid;
};
/* PCI bus operations */
* PCI buses must support reading and writing configuration values
* so that the bus can be scanned and its devices configured.
*
- * Normally PCI_BUS(@bdf) is the same as @bus->seq, but not always.
+ * Normally PCI_BUS(@bdf) is the same as @dev_seq(bus), but not always.
* If bridges exist it is possible to use the top-level bus to
* access a sub-bus. In that case @bus will be the top-level bus
* and PCI_BUS(bdf) will be a different (higher) value
* dm_pci_get_bdf() - Get the BDF value for a device
*
* @dev: Device to check
- * @return bus/device/function value (see PCI_BDF())
+ * Return: bus/device/function value (see PCI_BDF())
*/
pci_dev_t dm_pci_get_bdf(const struct udevice *dev);
* driver interface.
*
* @bus: Bus containing devices to bind
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int pci_bind_bus_devices(struct udevice *bus);
* devices are mapped into memory and I/O space ready for use.
*
* @bus: Bus containing devices to bind
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int pci_auto_config_devices(struct udevice *bus);
*
* @bdf: PCI device address: bus, device and function -see PCI_BDF()
* @devp: Returns the device for this address, if found
- * @return 0 if OK, -ENODEV if not found
+ * Return: 0 if OK, -ENODEV if not found
*/
int dm_pci_bus_find_bdf(pci_dev_t bdf, struct udevice **devp);
*
* @find_devfn: PCI device address (device and function only)
* @devp: Returns the device for this address, if found
- * @return 0 if OK, -ENODEV if not found
+ * Return: 0 if OK, -ENODEV if not found
*/
int pci_bus_find_devfn(const struct udevice *bus, pci_dev_t find_devfn,
struct udevice **devp);
/**
* pci_find_first_device() - return the first available PCI device
*
- * This function and pci_find_first_device() allow iteration through all
+ * This function and pci_find_next_device() allow iteration through all
* available PCI devices on all buses. Assuming there are any, this will
* return the first one.
*
* @devp: Set to the first available device, or NULL if no more are left
* or we got an error
- * @return 0 if all is OK, -ve on error (e.g. a bus/bridge failed to probe)
+ * Return: 0 if all is OK, -ve on error (e.g. a bus/bridge failed to probe)
*/
int pci_find_first_device(struct udevice **devp);
*
* @devp: On entry, the last device returned. Set to the next available
* device, or NULL if no more are left or we got an error
- * @return 0 if all is OK, -ve on error (e.g. a bus/bridge failed to probe)
+ * Return: 0 if all is OK, -ve on error (e.g. a bus/bridge failed to probe)
*/
int pci_find_next_device(struct udevice **devp);
* pci_get_ff() - Returns a mask for the given access size
*
* @size: Access size
- * @return 0xff for PCI_SIZE_8, 0xffff for PCI_SIZE_16, 0xffffffff for
+ * Return: 0xff for PCI_SIZE_8, 0xffff for PCI_SIZE_16, 0xffffffff for
* PCI_SIZE_32
*/
int pci_get_ff(enum pci_size_t size);
* parameter is decremented for each non-matching device so
* can be called repeatedly.
* @devp: Returns matching device if found
- * @return 0 if found, -ENODEV if not
+ * Return: 0 if found, -ENODEV if not
*/
-int pci_bus_find_devices(struct udevice *bus, struct pci_device_id *ids,
+int pci_bus_find_devices(struct udevice *bus, const struct pci_device_id *ids,
int *indexp, struct udevice **devp);
/**
* @index: Index number of device to find, 0 for the first match, 1 for
* the second, etc.
* @devp: Returns matching device if found
- * @return 0 if found, -ENODEV if not
+ * Return: 0 if found, -ENODEV if not
*/
-int pci_find_device_id(struct pci_device_id *ids, int index,
+int pci_find_device_id(const struct pci_device_id *ids, int index,
struct udevice **devp);
/**
*
* @hose: PCI hose to scan
* @bdf: PCI bus address to scan (PCI_BUS(bdf) is the bus number)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int dm_pci_hose_probe_bus(struct udevice *bus);
* @offset: Register offset to read
* @valuep: Place to put the returned value
* @size: Access size
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int pci_bus_read_config(const struct udevice *bus, pci_dev_t bdf, int offset,
unsigned long *valuep, enum pci_size_t size);
* @offset: Register offset to write
* @value: Value to write
* @size: Access size
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int pci_bus_write_config(struct udevice *bus, pci_dev_t bdf, int offset,
unsigned long value, enum pci_size_t size);
* @offset: Register offset to update
* @clr: Bits to clear
* @set: Bits to set
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int pci_bus_clrset_config32(struct udevice *bus, pci_dev_t bdf, int offset,
u32 clr, u32 set);
ulong *valuep,
enum pci_size_t size);
+#if defined(CONFIG_PCI_SRIOV)
+/**
+ * pci_sriov_init() - Scan Virtual Function devices
+ *
+ * @pdev: Physical Function udevice handle
+ * @vf_en: Number of Virtual Function devices to enable
+ * Return: 0 on success, -ve on error
+ */
+int pci_sriov_init(struct udevice *pdev, int vf_en);
+
+/**
+ * pci_sriov_get_totalvfs() - Get total available Virtual Function devices
+ *
+ * @pdev: Physical Function udevice handle
+ * Return: count on success, -ve on error
+ */
+int pci_sriov_get_totalvfs(struct udevice *pdev);
+#endif
+
#ifdef CONFIG_DM_PCI_COMPAT
/* Compatibility with old naming */
static inline int pci_write_config_dword(pci_dev_t pcidev, int offset,
* devices are mapped into memory and I/O space ready for use.
*
* @dev: Device to configure
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int dm_pciauto_config_device(struct udevice *dev);
* @value: Value to transform (32-bit value read from @offset & ~3)
* @offset: Register offset that was read
* @size: Required size of the result
- * @return the value that would have been obtained if the read had been
+ * Return: the value that would have been obtained if the read had been
* performed at the given offset with the correct size
*/
ulong pci_conv_32_to_size(ulong value, uint offset, enum pci_size_t size);
* @value: Value to transform (32-bit value read from @offset & ~3)
* @offset: Register offset that should be written
* @size: Required size of the write
- * @return the value that should be written as a 32-bit access to @offset & ~3.
+ * Return: the value that should be written as a 32-bit access to @offset & ~3.
*/
ulong pci_conv_size_to_32(ulong old, ulong value, uint offset,
enum pci_size_t size);
* pci_get_controller() - obtain the controller to use for a bus
*
* @dev: Device to check
- * @return pointer to the controller device for this bus
+ * Return: pointer to the controller device for this bus
*/
struct udevice *pci_get_controller(struct udevice *dev);
* @iop: Returns a pointer to the I/O region, or NULL if none
* @memp: Returns a pointer to the memory region, or NULL if none
* @prefp: Returns a pointer to the pre-fetch region, or NULL if none
- * @return the number of non-NULL regions returned, normally 3
+ * Return: the number of non-NULL regions returned, normally 3
*/
int pci_get_regions(struct udevice *dev, struct pci_region **iop,
struct pci_region **memp, struct pci_region **prefp);
u32 dm_pci_read_bar32(const struct udevice *dev, int barnum);
/**
- * dm_pci_bus_to_phys() - convert a PCI bus address to a physical address
+ * dm_pci_bus_to_phys() - convert a PCI bus address range to a physical address
*
* @dev: Device containing the PCI address
* @addr: PCI address to convert
+ * @len: Length of the address range
+ * @mask: Mask to match flags for the region type
* @flags: Flags for the region type (PCI_REGION_...)
- * @return physical address corresponding to that PCI bus address
+ * Return: physical address corresponding to that PCI bus address
*/
-phys_addr_t dm_pci_bus_to_phys(struct udevice *dev, pci_addr_t addr,
- unsigned long flags);
+phys_addr_t dm_pci_bus_to_phys(struct udevice *dev, pci_addr_t addr, size_t len,
+ unsigned long mask, unsigned long flags);
/**
* dm_pci_phys_to_bus() - convert a physical address to a PCI bus address
*
* @dev: Device containing the bus address
* @addr: Physical address to convert
+ * @len: Length of the address range
+ * @mask: Mask to match flags for the region type
* @flags: Flags for the region type (PCI_REGION_...)
- * @return PCI bus address corresponding to that physical address
+ * Return: PCI bus address corresponding to that physical address
*/
-pci_addr_t dm_pci_phys_to_bus(struct udevice *dev, phys_addr_t addr,
- unsigned long flags);
+pci_addr_t dm_pci_phys_to_bus(struct udevice *dev, phys_addr_t addr, size_t len,
+ unsigned long mask, unsigned long flags);
/**
* dm_pci_map_bar() - get a virtual address associated with a BAR region
*
* @dev: Device to check
* @bar: Bar register offset (PCI_BASE_ADDRESS_...)
+ * @offset: Offset from the base to map
+ * @len: Length to map
+ * @mask: Mask to match flags for the region type
* @flags: Flags for the region type (PCI_REGION_...)
* @return: pointer to the virtual address to use or 0 on error
*/
-void *dm_pci_map_bar(struct udevice *dev, int bar, int flags);
+void *dm_pci_map_bar(struct udevice *dev, int bar, size_t offset, size_t len,
+ unsigned long mask, unsigned long flags);
/**
* dm_pci_find_next_capability() - find a capability starting from an offset
int dm_pci_flr(struct udevice *dev);
#define dm_pci_virt_to_bus(dev, addr, flags) \
- dm_pci_phys_to_bus(dev, (virt_to_phys(addr)), (flags))
-#define dm_pci_bus_to_virt(dev, addr, flags, len, map_flags) \
- map_physmem(dm_pci_bus_to_phys(dev, (addr), (flags)), \
- (len), (map_flags))
+ dm_pci_phys_to_bus(dev, (virt_to_phys(addr)), 0, PCI_REGION_TYPE, (flags))
+#define dm_pci_bus_to_virt(dev, addr, len, mask, flags, map_flags) \
+({ \
+ size_t _len = (len); \
+ phys_addr_t phys_addr = dm_pci_bus_to_phys((dev), (addr), _len, \
+ (mask), (flags)); \
+ map_physmem(phys_addr, _len, (map_flags)); \
+})
#define dm_pci_phys_to_mem(dev, addr) \
- dm_pci_phys_to_bus((dev), (addr), PCI_REGION_MEM)
+ dm_pci_phys_to_bus((dev), (addr), 0, PCI_REGION_TYPE, PCI_REGION_MEM)
#define dm_pci_mem_to_phys(dev, addr) \
- dm_pci_bus_to_phys((dev), (addr), PCI_REGION_MEM)
+ dm_pci_bus_to_phys((dev), (addr), 0, PCI_REGION_TYPE, PCI_REGION_MEM)
#define dm_pci_phys_to_io(dev, addr) \
- dm_pci_phys_to_bus((dev), (addr), PCI_REGION_IO)
+ dm_pci_phys_to_bus((dev), (addr), 0, PCI_REGION_TYPE, PCI_REGION_IO)
#define dm_pci_io_to_phys(dev, addr) \
- dm_pci_bus_to_phys((dev), (addr), PCI_REGION_IO)
+ dm_pci_bus_to_phys((dev), (addr), 0, PCI_REGION_TYPE, PCI_REGION_IO)
#define dm_pci_virt_to_mem(dev, addr) \
dm_pci_virt_to_bus((dev), (addr), PCI_REGION_MEM)
#define dm_pci_mem_to_virt(dev, addr, len, map_flags) \
- dm_pci_bus_to_virt((dev), (addr), PCI_REGION_MEM, (len), (map_flags))
+ dm_pci_bus_to_virt((dev), (addr), (len), PCI_REGION_TYPE, \
+ PCI_REGION_MEM, (map_flags))
#define dm_pci_virt_to_io(dev, addr) \
dm_pci_virt_to_bus((dev), (addr), PCI_REGION_IO)
#define dm_pci_io_to_virt(dev, addr, len, map_flags) \
- dm_pci_bus_to_virt((dev), (addr), PCI_REGION_IO, (len), (map_flags))
+ dm_pci_bus_to_virt((dev), (addr), (len), PCI_REGION_TYPE, \
+ PCI_REGION_IO, (map_flags))
/**
* dm_pci_find_device() - find a device by vendor/device ID
* @device: Device ID
* @index: 0 to find the first match, 1 for second, etc.
* @devp: Returns pointer to the device, if found
- * @return 0 if found, -ve on error
+ * Return: 0 if found, -ve on error
*/
int dm_pci_find_device(unsigned int vendor, unsigned int device, int index,
struct udevice **devp);
* @find_class: 3-byte (24-bit) class value to find
* @index: 0 to find the first match, 1 for second, etc.
* @devp: Returns pointer to the device, if found
- * @return 0 if found, -ve on error
+ * Return: 0 if found, -ve on error
*/
int dm_pci_find_class(uint find_class, int index, struct udevice **devp);
* @find_devfn: PCI device and function address (PCI_DEVFN())
* @containerp: Returns container device if found
* @emulp: Returns emulated device if found
- * @return 0 if found, -ENODEV if not found
+ * Return: 0 if found, -ENODEV if not found
*/
int sandbox_pci_get_emul(const struct udevice *bus, pci_dev_t find_devfn,
struct udevice **containerp, struct udevice **emulp);
*
* @emul: Emulation device to check
* @devp: Returns the client device emulated by this device
- * @return 0 if OK, -ENOENT if the device has no client yet
+ * Return: 0 if OK, -ENOENT if the device has no client yet
*/
int sandbox_pci_get_client(struct udevice *emul, struct udevice **devp);
-#endif /* CONFIG_DM_PCI */
+/**
+ * board_pci_fixup_dev() - Board callback for PCI device fixups
+ *
+ * @bus: PCI bus
+ * @dev: PCI device
+ */
+extern void board_pci_fixup_dev(struct udevice *bus, struct udevice *dev);
/**
* PCI_DEVICE - macro used to describe a specific pci device
projects / platform / kernel / u-boot.git / blobdiff