pcie.c File Reference

#include <console/console.h>
#include <cpu/intel/haswell/haswell.h>
#include <delay.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pciexp.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <soc/lpc.h>
#include <soc/pch.h>
#include <soc/pci_devs.h>
#include <soc/rcba.h>
#include <soc/intel/broadwell/pch/chip.h>
#include <southbridge/intel/lynxpoint/iobp.h>
#include <southbridge/intel/lynxpoint/lp_gpio.h>
#include <types.h>

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Data Structures
struct	root_port_config

Macros
#define	MAX_NUM_ROOT_PORTS   6

Functions
static int	root_port_is_first (struct device *dev)
static int	root_port_is_last (struct device *dev)
static int	root_port_number (struct device *dev)
static void	root_port_config_update_gbe_port (void)
static void	pcie_iosf_port_grant_count (struct device *dev)
static void	root_port_init_config (struct device *dev)
static void	pch_pcie_device_set_func (int index, int pci_func)
static void	pcie_enable_clock_gating (void)
static void	root_port_commit_config (void)
static void	root_port_mark_disable (struct device *dev)
static void	root_port_check_disable (struct device *dev)
static void	pcie_add_0x0202000_iobp (u32 reg)
static void	pch_pcie_early (struct device *dev)
static void	pch_pcie_init (struct device *dev)
static void	pch_pcie_enable (struct device *dev)
static void	pcie_get_ltr_max_latencies (u16 *max_snoop, u16 *max_nosnoop)

Variables
static struct root_port_config	rpc
static struct pci_operations	pcie_ops
static struct device_operations	device_ops
static const unsigned short	pcie_device_ids []
static const struct pci_driver pch_pcie	__pci_driver

Macro Definition Documentation

MAX_NUM_ROOT_PORTS

#define MAX_NUM_ROOT_PORTS   6

Definition at line 22 of file pcie.c.

Function Documentation

pch_pcie_device_set_func()

static void pch_pcie_device_set_func ( int  index, int  pci_func  )

static

Definition at line 172 of file pcie.c.

References BIOS_DEBUG, pci_path::devfn, root_port_config::new_rpfn, device::path, PCH_DEV_SLOT_PCIE, device_path::pci, PCI_DEVFN, PCI_FUNC, PCI_SLOT, root_port_config::ports, printk, rpc, RPFN_FNMASK, and RPFN_FNSET.

Referenced by root_port_commit_config().

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pch_pcie_early()

static void pch_pcie_early ( struct device *  dev )

static

Definition at line 437 of file pcie.c.

References root_port_config::b0d28f0_32c, root_port_config::b0d28f4_32c, root_port_config::b0d28f5_32c, BIOS_DEBUG, config, CONFIG, config_of(), pci_and_config8(), pci_or_config32(), pci_read_config8(), pci_update_config32(), pci_update_config8(), pcie_add_0x0202000_iobp(), root_port_config::pin_ownership, printk, root_port_number(), and rpc.

Referenced by pch_pcie_enable().

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pch_pcie_enable()

static void pch_pcie_enable ( struct device *  dev )

static

Definition at line 593 of file pcie.c.

References device::enabled, pch_pcie_early(), root_port_check_disable(), root_port_commit_config(), root_port_init_config(), and root_port_is_last().

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pch_pcie_init()

static void pch_pcie_init ( struct device *  dev )

static

Definition at line 573 of file pcie.c.

References BIOS_DEBUG, pci_and_config16(), PCI_BRIDGE_CONTROL, PCI_BRIDGE_CTL_PARITY, PCI_COMMAND, PCI_COMMAND_MASTER, PCI_COMMAND_SERR, pci_or_config16(), pci_update_config16(), pci_write_config8(), and printk.

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pcie_add_0x0202000_iobp()

static void pcie_add_0x0202000_iobp ( u32  reg )

static

Definition at line 428 of file pcie.c.

References pch_iobp_read(), and pch_iobp_write().

Referenced by pch_pcie_early().

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pcie_enable_clock_gating()

static void pcie_enable_clock_gating ( void  )

static

Definition at line 197 of file pcie.c.

References BROADWELL_FAMILY_ULT, cpu_family_model(), device::enabled, gpio_is_native(), root_port_config::num_ports, pci_or_config32(), pci_or_config8(), pci_update_config32(), pci_update_config8(), root_port_config::ports, RCBA32_OR, root_port_number(), and rpc.

Referenced by root_port_commit_config().

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pcie_get_ltr_max_latencies()

static void pcie_get_ltr_max_latencies ( u16 *  max_snoop, u16 *  max_nosnoop  )

static

Definition at line 613 of file pcie.c.

pcie_iosf_port_grant_count()

static void pcie_iosf_port_grant_count ( struct device *  dev )

static

Definition at line 84 of file pcie.c.

References pci_read_config32(), and RCBA32.

Referenced by root_port_init_config().

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root_port_check_disable()

static void root_port_check_disable ( struct device *  dev )

static

Definition at line 357 of file pcie.c.

References device::enabled, root_port_config::gbe_port, root_port_config::pin_ownership, root_port_mark_disable(), root_port_number(), rpc, and root_port_config::strpfusecfg1.

Referenced by pch_pcie_enable().

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root_port_commit_config()

static void root_port_commit_config ( void  )

static

Definition at line 272 of file pcie.c.

References BIOS_DEBUG, BIOS_ERR, BIOS_SPEW, root_port_config::coalesce, dev_path(), device::enabled, root_port_config::new_rpfn, NULL, root_port_config::num_ports, root_port_config::orig_rpfn, pch_disable_devfn(), pch_pcie_device_set_func(), pci_or_config32(), pci_read_config32(), pcie_enable_clock_gating(), root_port_config::ports, printk, RCBA32, rpc, RPFN, and udelay().

Referenced by pch_pcie_enable().

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root_port_config_update_gbe_port()

static void root_port_config_update_gbe_port ( void  )

static

Definition at line 59 of file pcie.c.

References BIOS_DEBUG, root_port_config::gbe_port, printk, rpc, and root_port_config::strpfusecfg1.

Referenced by root_port_init_config().

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root_port_init_config()

static void root_port_init_config ( struct device *  dev )

static

Definition at line 105 of file pcie.c.

References root_port_config::b0d28f0_32c, root_port_config::b0d28f4_32c, root_port_config::b0d28f5_32c, BIOS_ERR, root_port_config::coalesce, config, config_of(), root_port_config::gbe_port, IOBP_PCICFG_READ, IOBP_PCICFG_WRITE, MAX_NUM_ROOT_PORTS, root_port_config::new_rpfn, root_port_config::num_ports, root_port_config::orig_rpfn, pch_iobp_exec(), pci_or_config8(), pci_read_config32(), pci_update_config8(), pci_write_config32(), pcie_iosf_port_grant_count(), root_port_config::pin_ownership, root_port_config::ports, printk, RCBA32, root_port_config_update_gbe_port(), root_port_is_first(), root_port_number(), rpc, RPFN, root_port_config::strpfusecfg1, root_port_config::strpfusecfg2, and root_port_config::strpfusecfg3.

Referenced by pch_pcie_enable().

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root_port_is_first()

static int root_port_is_first ( struct device *  dev )

inlinestatic

Definition at line 43 of file pcie.c.

References pci_path::devfn, device::path, device_path::pci, and PCI_FUNC.

Referenced by root_port_init_config().

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root_port_is_last()

static int root_port_is_last ( struct device *  dev )

inlinestatic

Definition at line 48 of file pcie.c.

References pci_path::devfn, root_port_config::num_ports, device::path, device_path::pci, PCI_FUNC, and rpc.

Referenced by pch_pcie_enable().

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root_port_mark_disable()

static void root_port_mark_disable ( struct device *  dev )

static

Definition at line 349 of file pcie.c.

References pci_path::devfn, device::enabled, root_port_config::new_rpfn, device::path, device_path::pci, PCI_FUNC, rpc, and RPFN_HIDE.

Referenced by root_port_check_disable().

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root_port_number()

static int root_port_number ( struct device *  dev )

inlinestatic

Definition at line 54 of file pcie.c.

References pci_path::devfn, device::path, device_path::pci, and PCI_FUNC.

Referenced by pch_pcie_early(), pcie_enable_clock_gating(), root_port_check_disable(), and root_port_init_config().

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Variable Documentation

__pci_driver

const struct pci_driver pch_pcie __pci_driver

static

Initial value:

= {
        .ops     = &device_ops,
        .vendor  = PCI_VID_INTEL,
        .devices = pcie_device_ids,
}

Definition at line 634 of file pcie.c.

device_ops

struct device_operations device_ops

static

Initial value:

= {
        .read_resources         = pci_bus_read_resources,
        .set_resources          = pci_dev_set_resources,
        .enable_resources       = pci_bus_enable_resources,
        .init                   = pch_pcie_init,
        .enable                 = pch_pcie_enable,
        .scan_bus               = pciexp_scan_bridge,
        .ops_pci                = &pcie_ops,
}

Definition at line 613 of file pcie.c.

pcie_device_ids

const unsigned short pcie_device_ids[]

static

Initial value:

= {
        
        0x9c10, 0x9c12, 0x9c14, 0x9c16, 0x9c18, 0x9c1a,
        
        0x9c90, 0x9c92, 0x9c94, 0x9c96, 0x9c98, 0x9c9a, 0x2448,
        0
}

Definition at line 634 of file pcie.c.

pcie_ops

struct pci_operations pcie_ops

static

Initial value:

= {
        .set_subsystem = pci_dev_set_subsystem,
        .get_ltr_max_latencies = pcie_get_ltr_max_latencies,
}

Definition at line 613 of file pcie.c.

rpc

struct root_port_config rpc

static

Definition at line 1 of file pcie.c.

Referenced by pch_pcie_device_set_func(), pch_pcie_early(), pcie_enable_clock_gating(), root_port_check_disable(), root_port_commit_config(), root_port_config_update_gbe_port(), root_port_init_config(), root_port_is_last(), and root_port_mark_disable().