8b47c1ae54
name people know the product by, and is consistent with the later SoC ID macros. Sponsored by: DARPA, AFRL
162 lines
4.8 KiB
C
162 lines
4.8 KiB
C
/*
|
|
* Copyright (C) 2016 Cavium Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Developed by Semihalf.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#include "opt_platform.h"
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/types.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/cpuset.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pci_host_generic.h>
|
|
#include <dev/pci/pci_host_generic_fdt.h>
|
|
#include <dev/pci/pcib_private.h>
|
|
|
|
#include "thunder_pcie_common.h"
|
|
|
|
#include "pcib_if.h"
|
|
|
|
#ifdef THUNDERX_PASS_1_1_ERRATA
|
|
static struct resource * thunder_pcie_fdt_alloc_resource(device_t, device_t,
|
|
int, int *, rman_res_t, rman_res_t, rman_res_t, u_int);
|
|
#endif
|
|
static int thunder_pcie_fdt_attach(device_t);
|
|
static int thunder_pcie_fdt_probe(device_t);
|
|
static int thunder_pcie_fdt_get_id(device_t, device_t, enum pci_id_type,
|
|
uintptr_t *);
|
|
|
|
static device_method_t thunder_pcie_fdt_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, thunder_pcie_fdt_probe),
|
|
DEVMETHOD(device_attach, thunder_pcie_fdt_attach),
|
|
#ifdef THUNDERX_PASS_1_1_ERRATA
|
|
DEVMETHOD(bus_alloc_resource, thunder_pcie_fdt_alloc_resource),
|
|
#endif
|
|
|
|
/* pcib interface */
|
|
DEVMETHOD(pcib_get_id, thunder_pcie_fdt_get_id),
|
|
|
|
/* End */
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_1(pcib, thunder_pcie_fdt_driver, thunder_pcie_fdt_methods,
|
|
sizeof(struct generic_pcie_fdt_softc), generic_pcie_fdt_driver);
|
|
|
|
static devclass_t thunder_pcie_fdt_devclass;
|
|
|
|
DRIVER_MODULE(thunder_pcib, simplebus, thunder_pcie_fdt_driver,
|
|
thunder_pcie_fdt_devclass, 0, 0);
|
|
DRIVER_MODULE(thunder_pcib, ofwbus, thunder_pcie_fdt_driver,
|
|
thunder_pcie_fdt_devclass, 0, 0);
|
|
|
|
|
|
static int
|
|
thunder_pcie_fdt_probe(device_t dev)
|
|
{
|
|
|
|
/* Check if we're running on Cavium ThunderX */
|
|
if (!CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK,
|
|
CPU_IMPL_CAVIUM, CPU_PART_THUNDERX, 0, 0))
|
|
return (ENXIO);
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (ofw_bus_is_compatible(dev, "pci-host-ecam-generic") ||
|
|
ofw_bus_is_compatible(dev, "cavium,thunder-pcie") ||
|
|
ofw_bus_is_compatible(dev, "cavium,pci-host-thunder-ecam")) {
|
|
device_set_desc(dev, "Cavium Integrated PCI/PCI-E Controller");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
thunder_pcie_fdt_attach(device_t dev)
|
|
{
|
|
struct generic_pcie_fdt_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
thunder_pcie_identify_ecam(dev, &sc->base.ecam);
|
|
sc->base.coherent = 1;
|
|
|
|
return (pci_host_generic_attach(dev));
|
|
}
|
|
|
|
static int
|
|
thunder_pcie_fdt_get_id(device_t pci, device_t child, enum pci_id_type type,
|
|
uintptr_t *id)
|
|
{
|
|
phandle_t node;
|
|
int bsf;
|
|
|
|
if (type != PCI_ID_MSI)
|
|
return (pcib_get_id(pci, child, type, id));
|
|
|
|
node = ofw_bus_get_node(pci);
|
|
if (OF_hasprop(node, "msi-map"))
|
|
return (generic_pcie_get_id(pci, child, type, id));
|
|
|
|
bsf = pci_get_rid(child);
|
|
*id = (pci_get_domain(child) << PCI_RID_DOMAIN_SHIFT) | bsf;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef THUNDERX_PASS_1_1_ERRATA
|
|
static struct resource *
|
|
thunder_pcie_fdt_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
|
|
{
|
|
|
|
if ((int)ofw_bus_get_node(child) > 0)
|
|
return (pci_host_generic_alloc_resource(dev, child,
|
|
type, rid, start, end, count, flags));
|
|
|
|
return (thunder_pcie_alloc_resource(dev, child,
|
|
type, rid, start, end, count, flags));
|
|
}
|
|
#endif
|