pcie.c File Reference

#include <assert.h>
#include <commonlib/helpers.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_def.h>
#include <device/pciexp.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "iobp.h"
#include "pch.h"
#include <southbridge/intel/common/gpio.h>
#include <stdint.h>
#include "chip.h"

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Data Structures
struct	root_port_config

Macros
#define	MAX_NUM_ROOT_PORTS   8

Functions
static int	max_root_ports (void)
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 bool	is_rp_enabled (int rp)
static void	root_port_config_update_gbe_port (void)
static void	update_num_ports (void)
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)

Variables
static struct root_port_config	rpc
static struct device_operations	device_ops
static const unsigned short	pci_device_ids []
static const struct pci_driver pch_pcie	__pci_driver

Macro Definition Documentation

MAX_NUM_ROOT_PORTS

#define MAX_NUM_ROOT_PORTS   8

Definition at line 18 of file pcie.c.

Function Documentation

is_rp_enabled()

static bool is_rp_enabled ( int  rp )

static

Definition at line 63 of file pcie.c.

References ARRAY_SIZE, ASSERT, device::enabled, NULL, root_port_config::ports, and rpc.

Referenced by pcie_enable_clock_gating(), and root_port_commit_config().

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max_root_ports()

static int max_root_ports ( void  )

inlinestatic

Definition at line 39 of file pcie.c.

References pch_is_lp(), pch_silicon_id(), and PCI_DID_INTEL_LPT_H81.

Referenced by root_port_init_config().

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pch_pcie_device_set_func()

static void pch_pcie_device_set_func ( int  index, int  pci_func  )

static

Definition at line 190 of file pcie.c.

References BIOS_DEBUG, pci_path::devfn, root_port_config::new_rpfn, device::path, PCH_PCIE_DEV_SLOT, 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 502 of file pcie.c.

References root_port_config::b0d28f0_32c, root_port_config::b0d28f4_32c, root_port_config::b0d28f5_32c, BIOS_DEBUG, device::chip_info, config, CONFIG, pch_is_lp(), pci_and_config32(), pci_and_config8(), pci_or_config32(), pci_read_config8(), pci_update_config16(), pci_update_config32(), pcie_add_0x0202000_iobp(), root_port_config::pin_ownership, printk, root_port_number(), and rpc.

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pch_pcie_enable()

static void pch_pcie_enable ( struct device *  dev )

static

Definition at line 721 of file pcie.c.

pch_pcie_init()

static void pch_pcie_init ( struct device *  dev )

static

Definition at line 700 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 493 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 215 of file pcie.c.

References gpio_is_native(), is_rp_enabled(), root_port_config::num_ports, pch_is_lp(), pci_or_config32(), pci_or_config8(), pci_update_config8(), root_port_config::ports, root_port_number(), and rpc.

Referenced by root_port_commit_config().

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root_port_check_disable()

static void root_port_check_disable ( struct device *  dev )

static

Definition at line 371 of file pcie.c.

References device::enabled, root_port_config::gbe_port, pch_is_lp(), root_port_config::pin_ownership, root_port_mark_disable(), root_port_number(), rpc, root_port_config::strpfusecfg1, and root_port_config::strpfusecfg2.

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root_port_commit_config()

static void root_port_commit_config ( void  )

static

Definition at line 301 of file pcie.c.

References BIOS_DEBUG, BIOS_ERR, BIOS_SPEW, root_port_config::coalesce, dev_path(), device::enabled, is_rp_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_and_config16(), PCI_COMMAND, PCI_COMMAND_IO, PCI_COMMAND_MASTER, PCI_COMMAND_MEMORY, pcie_enable_clock_gating(), root_port_config::ports, printk, RCBA32, rpc, and RPFN.

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root_port_config_update_gbe_port()

static void root_port_config_update_gbe_port ( void  )

static

Definition at line 73 of file pcie.c.

References BIOS_DEBUG, root_port_config::gbe_port, pch_is_lp(), 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 135 of file pcie.c.

References root_port_config::b0d28f0_32c, root_port_config::b0d28f4_32c, root_port_config::b0d28f5_32c, BIOS_ERR, device::chip_info, root_port_config::coalesce, config, root_port_config::gbe_port, max_root_ports(), root_port_config::new_rpfn, NULL, root_port_config::num_ports, root_port_config::orig_rpfn, pch_is_lp(), pci_read_config32(), 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, root_port_config::strpfusecfg3, and update_num_ports().

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root_port_is_first()

static int root_port_is_first ( struct device *  dev )

inlinestatic

Definition at line 47 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 52 of file pcie.c.

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

root_port_mark_disable()

static void root_port_mark_disable ( struct device *  dev )

static

Definition at line 363 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 58 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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update_num_ports()

static void update_num_ports ( void  )

static

Definition at line 103 of file pcie.c.

References BIOS_DEBUG, MIN, root_port_config::num_ports, printk, rpc, and root_port_config::strpfusecfg2.

Referenced by 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 = pci_device_ids,
}

Definition at line 751 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                = &pci_dev_ops_pci,
}

Definition at line 721 of file pcie.c.

pci_device_ids

const unsigned short pci_device_ids[]

static

Initial value:

= {
        PCI_DID_INTEL_LPT_H_PCIE_RP1,
        PCI_DID_INTEL_LPT_H_PCIE_RP2,
        PCI_DID_INTEL_LPT_H_PCIE_RP3,
        PCI_DID_INTEL_LPT_H_PCIE_RP4,
        PCI_DID_INTEL_LPT_H_PCIE_RP5,
        PCI_DID_INTEL_LPT_H_PCIE_RP6,
        PCI_DID_INTEL_LPT_H_PCIE_RP7,
        PCI_DID_INTEL_LPT_H_PCIE_RP8,
        PCI_DID_INTEL_LPT_LP_PCIE_RP1,
        PCI_DID_INTEL_LPT_LP_PCIE_RP2,
        PCI_DID_INTEL_LPT_LP_PCIE_RP3,
        PCI_DID_INTEL_LPT_LP_PCIE_RP4,
        PCI_DID_INTEL_LPT_LP_PCIE_RP5,
        PCI_DID_INTEL_LPT_LP_PCIE_RP6,
        0
}

Definition at line 751 of file pcie.c.

rpc

struct root_port_config rpc

static

Definition at line 1 of file pcie.c.

Referenced by is_rp_enabled(), 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(), root_port_mark_disable(), and update_num_ports().