diff options
Diffstat (limited to 'sys/arm/xscale/i80321/i80321_pci.c')
| -rw-r--r-- | sys/arm/xscale/i80321/i80321_pci.c | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/sys/arm/xscale/i80321/i80321_pci.c b/sys/arm/xscale/i80321/i80321_pci.c deleted file mode 100644 index 5f78577..0000000 --- a/sys/arm/xscale/i80321/i80321_pci.c +++ /dev/null @@ -1,401 +0,0 @@ -/* $NetBSD: i80321_pci.c,v 1.4 2003/07/15 00:24:54 lukem Exp $ */ - -/*- - * Copyright (c) 2001, 2002 Wasabi Systems, Inc. - * All rights reserved. - * - * Written by Jason R. Thorpe for Wasabi Systems, Inc. - * - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed for the NetBSD Project by - * Wasabi Systems, Inc. - * 4. The name of Wasabi Systems, Inc. may not be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC - * 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. - */ - -/* - * PCI configuration support for i80321 I/O Processor chip. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/malloc.h> -#include <sys/bus.h> -#include <sys/kernel.h> -#include <sys/module.h> -#include <sys/rman.h> - -#include <machine/bus.h> -#include <machine/cpu.h> -#include <machine/pcb.h> -#include <vm/vm.h> -#include <vm/pmap.h> -#include <vm/vm_extern.h> - -#include <arm/xscale/i80321/i80321reg.h> -#include <arm/xscale/i80321/i80321var.h> -#include <arm/xscale/i80321/i80321_intr.h> - -#include <dev/pci/pcib_private.h> -#include "pcib_if.h" - -#include <dev/pci/pcireg.h> -extern struct i80321_softc *i80321_softc; - -static int -i80321_pci_probe(device_t dev) -{ - device_set_desc(dev, "i80321 PCI bus"); - return (0); -} - -static int -i80321_pci_attach(device_t dev) -{ - - uint32_t busno; - struct i80321_pci_softc *sc = device_get_softc(dev); - - sc->sc_st = i80321_softc->sc_st; - sc->sc_atu_sh = i80321_softc->sc_atu_sh; - busno = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, ATU_PCIXSR); - busno = PCIXSR_BUSNO(busno); - if (busno == 0xff) - busno = 0; - sc->sc_dev = dev; - sc->sc_busno = busno; - sc->sc_pciio = &i80321_softc->sc_pci_iot; - sc->sc_pcimem = &i80321_softc->sc_pci_memt; - sc->sc_mem = i80321_softc->sc_owin[0].owin_xlate_lo + - VERDE_OUT_XLATE_MEM_WIN_SIZE; - - sc->sc_io = i80321_softc->sc_iow_vaddr; - /* Initialize memory and i/o rmans. */ - sc->sc_io_rman.rm_type = RMAN_ARRAY; - sc->sc_io_rman.rm_descr = "I80321 PCI I/O Ports"; - if (rman_init(&sc->sc_io_rman) != 0 || - rman_manage_region(&sc->sc_io_rman, - sc->sc_io, - sc->sc_io + - VERDE_OUT_XLATE_IO_WIN_SIZE) != 0) { - panic("i80321_pci_probe: failed to set up I/O rman"); - } - sc->sc_mem_rman.rm_type = RMAN_ARRAY; - sc->sc_mem_rman.rm_descr = "I80321 PCI Memory"; - if (rman_init(&sc->sc_mem_rman) != 0 || - rman_manage_region(&sc->sc_mem_rman, - 0, VERDE_OUT_XLATE_MEM_WIN_SIZE) != 0) { - panic("i80321_pci_probe: failed to set up memory rman"); - } - sc->sc_irq_rman.rm_type = RMAN_ARRAY; - sc->sc_irq_rman.rm_descr = "i80321 PCI IRQs"; - if (rman_init(&sc->sc_irq_rman) != 0 || - rman_manage_region(&sc->sc_irq_rman, 26, 32) != 0) - panic("i80321_pci_probe: failed to set up IRQ rman"); - device_add_child(dev, "pci", -1); - return (bus_generic_attach(dev)); -} - -static int -i80321_pci_maxslots(device_t dev) -{ - return (PCI_SLOTMAX); -} - - - -static int -i80321_pci_conf_setup(struct i80321_pci_softc *sc, int bus, int slot, int func, - int reg, uint32_t *addr) -{ - uint32_t busno; - - busno = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, ATU_PCIXSR); - busno = PCIXSR_BUSNO(busno); - if (busno == 0xff) - busno = 0; - - /* - * If the bus # is the same as our own, then use Type 0 cycles, - * else use Type 1. - * - * XXX We should filter out all non-private devices here! - * XXX How does private space interact with PCI-PCI bridges? - */ - if (bus == busno) { - if (slot > (31 - 16)) - return (1); - /* - * NOTE: PCI-X requires that that devices updated their - * PCIXSR on every config write with the device number - * specified in AD[15:11]. If we don't set this field, - * each device could end of thinking it is at device 0, - * which can cause a number of problems. Doing this - * unconditionally should be OK when only PCI devices - * are present. - */ - bus &= 0xff; - slot &= 0x1f; - func &= 0x07; - - *addr = (1U << (slot + 16)) | - (slot << 11) | (func << 8) | reg; - } else { - *addr = (bus << 16) | (slot << 11) | (func << 8) | reg | 1; - } - - return (0); -} - -static u_int32_t -i80321_pci_read_config(device_t dev, u_int bus, u_int slot, u_int func, - u_int reg, int bytes) -{ - struct i80321_pci_softc *sc = device_get_softc(dev); - uint32_t isr; - uint32_t addr; - u_int32_t ret = 0; - vm_offset_t va; - int err = 0; - if (i80321_pci_conf_setup(sc, bus, slot, func, reg & ~3, &addr)) - return (-1); - bus_space_write_4(sc->sc_st, sc->sc_atu_sh, ATU_OCCAR, - addr); - - va = sc->sc_atu_sh; - switch (bytes) { - case 1: - err = badaddr_read((void*)(va + ATU_OCCDR + (reg & 3)), 1, &ret); - break; - case 2: - err = badaddr_read((void*)(va + ATU_OCCDR + (reg & 3)), 2, &ret); - break; - case 4: - err = badaddr_read((void *)(va + ATU_OCCDR), 4, &ret); - break; - default: - printf("i80321_read_config: invalid size %d\n", bytes); - ret = -1; - } - if (err) { - - isr = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, ATU_ATUISR); - bus_space_write_4(sc->sc_st, sc->sc_atu_sh, ATU_ATUISR, - isr & (ATUISR_P_SERR_DET|ATUISR_PMA|ATUISR_PTAM| - ATUISR_PTAT|ATUISR_PMPE)); - return (-1); - } - return (ret); -} - -static void -i80321_pci_write_config(device_t dev, u_int bus, u_int slot, u_int func, - u_int reg, u_int32_t data, int bytes) -{ - struct i80321_pci_softc *sc = device_get_softc(dev); - uint32_t addr; - - if (i80321_pci_conf_setup(sc, bus, slot, func, reg & ~3, &addr)) - return; - - - bus_space_write_4(sc->sc_st, sc->sc_atu_sh, ATU_OCCAR, - addr); - switch (bytes) { - case 1: - bus_space_write_1(sc->sc_st, sc->sc_atu_sh, ATU_OCCDR + - (reg & 3), data); - break; - case 2: - bus_space_write_2(sc->sc_st, sc->sc_atu_sh, ATU_OCCDR + - (reg & 3), data); - break; - case 4: - bus_space_write_4(sc->sc_st, sc->sc_atu_sh, ATU_OCCDR, data); - break; - default: - printf("i80321_pci_write_config: Invalid size : %d\n", bytes); - } - -} - -static int -i80321_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) -{ - struct i80321_pci_softc *sc = device_get_softc(dev); - switch (which) { - case PCIB_IVAR_DOMAIN: - *result = 0; - return (0); - case PCIB_IVAR_BUS: - *result = sc->sc_busno; - return (0); - - } - return (ENOENT); -} - -static int -i80321_write_ivar(device_t dev, device_t child, int which, uintptr_t result) -{ - struct i80321_pci_softc * sc = device_get_softc(dev); - - switch (which) { - case PCIB_IVAR_DOMAIN: - return (EINVAL); - case PCIB_IVAR_BUS: - sc->sc_busno = result; - return (0); - } - return (ENOENT); -} - -static struct resource * -i80321_pci_alloc_resource(device_t bus, device_t child, int type, int *rid, - u_long start, u_long end, u_long count, u_int flags) -{ - struct i80321_pci_softc *sc = device_get_softc(bus); - struct resource *rv; - struct rman *rm; - bus_space_tag_t bt = NULL; - bus_space_handle_t bh = 0; - - switch (type) { - case SYS_RES_IRQ: - rm = &sc->sc_irq_rman; - break; - case SYS_RES_MEMORY: - rm = &sc->sc_mem_rman; - bt = sc->sc_pcimem; - bh = (start >= 0x80000000 && start < 0x84000000) ? 0x80000000 : - sc->sc_mem; - start &= (0x1000000 - 1); - end &= (0x1000000 - 1); - break; - case SYS_RES_IOPORT: - rm = &sc->sc_io_rman; - bt = sc->sc_pciio; - bh = sc->sc_io; - if (start < sc->sc_io) { - start = start - 0x90000000 + sc->sc_io; - end = end - 0x90000000 + sc->sc_io; - } - break; - default: - return (NULL); - } - - rv = rman_reserve_resource(rm, start, end, count, flags, child); - if (rv == NULL) - return (NULL); - rman_set_rid(rv, *rid); - if (type != SYS_RES_IRQ) { - if (type == SYS_RES_MEMORY) - bh += (rman_get_start(rv)); - rman_set_bustag(rv, bt); - rman_set_bushandle(rv, bh); - if (flags & RF_ACTIVE) { - if (bus_activate_resource(child, type, *rid, rv)) { - rman_release_resource(rv); - return (NULL); - } - } - } - return (rv); -} - -static int -i80321_pci_activate_resource(device_t bus, device_t child, int type, int rid, - struct resource *r) -{ - u_long p; - int error; - - if (type == SYS_RES_MEMORY) { - error = bus_space_map(rman_get_bustag(r), - rman_get_bushandle(r), rman_get_size(r), 0, &p); - if (error) - return (error); - rman_set_bushandle(r, p); - - } - return (rman_activate_resource(r)); -} - -static int -i80321_pci_setup_intr(device_t dev, device_t child, - struct resource *ires, int flags, driver_filter_t *filt, - driver_intr_t *intr, void *arg, void **cookiep) -{ - return (BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, - filt, intr, arg, cookiep)); -} - -static int -i80321_pci_teardown_intr(device_t dev, device_t child, struct resource *res, - void *cookie) -{ - return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie)); -} - -static device_method_t i80321_pci_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, i80321_pci_probe), - DEVMETHOD(device_attach, i80321_pci_attach), - DEVMETHOD(device_shutdown, bus_generic_shutdown), - DEVMETHOD(device_suspend, bus_generic_suspend), - DEVMETHOD(device_resume, bus_generic_resume), - - /* Bus interface */ - DEVMETHOD(bus_read_ivar, i80321_read_ivar), - DEVMETHOD(bus_write_ivar, i80321_write_ivar), - DEVMETHOD(bus_alloc_resource, i80321_pci_alloc_resource), - DEVMETHOD(bus_release_resource, bus_generic_release_resource), - DEVMETHOD(bus_activate_resource, i80321_pci_activate_resource), - DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), - DEVMETHOD(bus_setup_intr, i80321_pci_setup_intr), - DEVMETHOD(bus_teardown_intr, i80321_pci_teardown_intr), - - /* pcib interface */ - DEVMETHOD(pcib_maxslots, i80321_pci_maxslots), - DEVMETHOD(pcib_read_config, i80321_pci_read_config), - DEVMETHOD(pcib_write_config, i80321_pci_write_config), - DEVMETHOD(pcib_route_interrupt, machdep_pci_route_interrupt), - - DEVMETHOD_END -}; - -static driver_t i80321_pci_driver = { - "pcib", - i80321_pci_methods, - sizeof(struct i80321_pci_softc), -}; - -static devclass_t i80321_pci_devclass; - -DRIVER_MODULE(ipci, iq, i80321_pci_driver, i80321_pci_devclass, 0, 0); |
