ef544f6312
bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
390 lines
11 KiB
C
390 lines
11 KiB
C
/* $NetBSD: i80321_mainbus.c,v 1.13 2003/12/17 22:03:24 abs 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.
|
|
*/
|
|
|
|
/*
|
|
* IQ80321 front-end for the i80321 I/O Processor. We take care
|
|
* of setting up the i80321 memory map, PCI interrupt routing, etc.,
|
|
* which are all specific to the board the i80321 is wired up to.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#define _ARM32_BUS_DMA_PRIVATE
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <arm/xscale/i80321/i80321reg.h>
|
|
#include <arm/xscale/i80321/i80321var.h>
|
|
#include <arm/xscale/i80321/iq80321reg.h>
|
|
#include <arm/xscale/i80321/iq80321var.h>
|
|
#include <arm/xscale/i80321/i80321_intr.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
|
|
|
|
int iq80321_probe(device_t);
|
|
void iq80321_identify(driver_t *, device_t);
|
|
int iq80321_attach(device_t);
|
|
|
|
int
|
|
iq80321_probe(device_t dev)
|
|
{
|
|
device_set_desc(dev, "Intel 80321");
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
iq80321_identify(driver_t *driver, device_t parent)
|
|
{
|
|
|
|
BUS_ADD_CHILD(parent, 0, "iq", 0);
|
|
}
|
|
|
|
static struct arm32_dma_range i80321_dr;
|
|
static int dma_range_init = 0;
|
|
|
|
struct arm32_dma_range *
|
|
bus_dma_get_range(void)
|
|
{
|
|
if (dma_range_init == 0)
|
|
return (NULL);
|
|
return (&i80321_dr);
|
|
}
|
|
|
|
int
|
|
bus_dma_get_range_nb(void)
|
|
{
|
|
if (dma_range_init == 0)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
#define PCI_MAPREG_MEM_PREFETCHABLE_MASK 0x00000008
|
|
#define PCI_MAPREG_MEM_TYPE_64BIT 0x00000004
|
|
|
|
int
|
|
iq80321_attach(device_t dev)
|
|
{
|
|
struct i80321_softc *sc = device_get_softc(dev);
|
|
int b0u, b0l, b1u, b1l;
|
|
vm_paddr_t memstart = 0;
|
|
vm_size_t memsize = 0;
|
|
int busno;
|
|
|
|
/*
|
|
* Fill in the space tag for the i80321's own devices,
|
|
* and hand-craft the space handle for it (the device
|
|
* was mapped during early bootstrap).
|
|
*/
|
|
i80321_bs_init(&i80321_bs_tag, sc);
|
|
sc->sc_st = &i80321_bs_tag;
|
|
sc->sc_sh = IQ80321_80321_VBASE;
|
|
sc->dev = dev;
|
|
sc->sc_is_host = 1;
|
|
|
|
/*
|
|
* Slice off a subregion for the Memory Controller -- we need it
|
|
* here in order read the memory size.
|
|
*/
|
|
if (bus_space_subregion(sc->sc_st, sc->sc_sh, VERDE_MCU_BASE,
|
|
VERDE_MCU_SIZE, &sc->sc_mcu_sh))
|
|
panic("%s: unable to subregion MCU registers",
|
|
device_get_name(dev));
|
|
|
|
if (bus_space_subregion(sc->sc_st, sc->sc_sh, VERDE_ATU_BASE,
|
|
VERDE_ATU_SIZE, &sc->sc_atu_sh))
|
|
panic("%s: unable to subregion ATU registers",
|
|
device_get_name(dev));
|
|
|
|
/*
|
|
* We have mapped the the PCI I/O windows in the early
|
|
* bootstrap phase.
|
|
*/
|
|
sc->sc_iow_vaddr = IQ80321_IOW_VBASE;
|
|
|
|
/*
|
|
* Check the configuration of the ATU to see if another BIOS
|
|
* has configured us. If a PC BIOS didn't configure us, then:
|
|
* IQ80321: BAR0 00000000.0000000c BAR1 is 00000000.8000000c.
|
|
* IQ31244: BAR0 00000000.00000004 BAR1 is 00000000.0000000c.
|
|
* If a BIOS has configured us, at least one of those should be
|
|
* different. This is pretty fragile, but it's not clear what
|
|
* would work better.
|
|
*/
|
|
b0l = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, PCIR_BARS+0x0);
|
|
b0u = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, PCIR_BARS+0x4);
|
|
b1l = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, PCIR_BARS+0x8);
|
|
b1u = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, PCIR_BARS+0xc);
|
|
|
|
#ifdef VERBOSE_INIT_ARM
|
|
printf("i80321: BAR0 = %08x.%08x BAR1 = %08x.%08x\n",
|
|
b0l,b0u, b1l, b1u );
|
|
#endif
|
|
|
|
#define PCI_MAPREG_MEM_ADDR_MASK 0xfffffff0
|
|
b0l &= PCI_MAPREG_MEM_ADDR_MASK;
|
|
b0u &= PCI_MAPREG_MEM_ADDR_MASK;
|
|
b1l &= PCI_MAPREG_MEM_ADDR_MASK;
|
|
b1u &= PCI_MAPREG_MEM_ADDR_MASK;
|
|
|
|
#ifdef VERBOSE_INIT_ARM
|
|
printf("i80219: BAR0 = %08x.%08x BAR1 = %08x.%08x\n",
|
|
b0l,b0u, b1l, b1u );
|
|
#endif
|
|
|
|
if ((b0u != b1u) || (b0l != 0) || ((b1l & ~0x80000000U) != 0))
|
|
sc->sc_is_host = 0;
|
|
else
|
|
sc->sc_is_host = 1;
|
|
|
|
/* FIXME: i force it's */
|
|
|
|
#ifdef CPU_XSCALE_80219
|
|
sc->sc_is_host = 1;
|
|
#endif
|
|
|
|
i80321_sdram_bounds(sc->sc_st, sc->sc_mcu_sh, &memstart, &memsize);
|
|
/*
|
|
* We set up the Inbound Windows as follows:
|
|
*
|
|
* 0 Access to i80321 PMMRs
|
|
*
|
|
* 1 Reserve space for private devices
|
|
*
|
|
* 2 RAM access
|
|
*
|
|
* 3 Unused.
|
|
*
|
|
* This chunk needs to be customized for each IOP321 application.
|
|
*/
|
|
#if 0
|
|
sc->sc_iwin[0].iwin_base_lo = VERDE_PMMR_BASE;
|
|
sc->sc_iwin[0].iwin_base_hi = 0;
|
|
sc->sc_iwin[0].iwin_xlate = VERDE_PMMR_BASE;
|
|
sc->sc_iwin[0].iwin_size = VERDE_PMMR_SIZE;
|
|
#endif
|
|
if (sc->sc_is_host) {
|
|
|
|
/* Map PCI:Local 1:1. */
|
|
sc->sc_iwin[1].iwin_base_lo = VERDE_OUT_XLATE_MEM_WIN0_BASE |
|
|
PCI_MAPREG_MEM_PREFETCHABLE_MASK |
|
|
PCI_MAPREG_MEM_TYPE_64BIT;
|
|
sc->sc_iwin[1].iwin_base_hi = 0;
|
|
} else {
|
|
|
|
sc->sc_iwin[1].iwin_base_lo = 0;
|
|
sc->sc_iwin[1].iwin_base_hi = 0;
|
|
}
|
|
sc->sc_iwin[1].iwin_xlate = VERDE_OUT_XLATE_MEM_WIN0_BASE;
|
|
sc->sc_iwin[1].iwin_size = VERDE_OUT_XLATE_MEM_WIN_SIZE;
|
|
|
|
if (sc->sc_is_host) {
|
|
sc->sc_iwin[2].iwin_base_lo = memstart |
|
|
PCI_MAPREG_MEM_PREFETCHABLE_MASK |
|
|
PCI_MAPREG_MEM_TYPE_64BIT;
|
|
sc->sc_iwin[2].iwin_base_hi = 0;
|
|
} else {
|
|
sc->sc_iwin[2].iwin_base_lo = 0;
|
|
sc->sc_iwin[2].iwin_base_hi = 0;
|
|
}
|
|
sc->sc_iwin[2].iwin_xlate = memstart;
|
|
sc->sc_iwin[2].iwin_size = memsize;
|
|
|
|
if (sc->sc_is_host) {
|
|
sc->sc_iwin[3].iwin_base_lo = 0 |
|
|
PCI_MAPREG_MEM_PREFETCHABLE_MASK |
|
|
PCI_MAPREG_MEM_TYPE_64BIT;
|
|
} else {
|
|
sc->sc_iwin[3].iwin_base_lo = 0;
|
|
}
|
|
sc->sc_iwin[3].iwin_base_hi = 0;
|
|
sc->sc_iwin[3].iwin_xlate = 0;
|
|
sc->sc_iwin[3].iwin_size = 0;
|
|
|
|
#ifdef VERBOSE_INIT_ARM
|
|
printf("i80321: Reserve space for private devices (Inbound Window 1) \n hi:0x%08x lo:0x%08x xlate:0x%08x size:0x%08x\n",
|
|
sc->sc_iwin[1].iwin_base_hi,
|
|
sc->sc_iwin[1].iwin_base_lo,
|
|
sc->sc_iwin[1].iwin_xlate,
|
|
sc->sc_iwin[1].iwin_size
|
|
);
|
|
printf("i80321: RAM access (Inbound Window 2) \n hi:0x%08x lo:0x%08x xlate:0x%08x size:0x%08x\n",
|
|
sc->sc_iwin[2].iwin_base_hi,
|
|
sc->sc_iwin[2].iwin_base_lo,
|
|
sc->sc_iwin[2].iwin_xlate,
|
|
sc->sc_iwin[2].iwin_size
|
|
);
|
|
#endif
|
|
|
|
/*
|
|
* We set up the Outbound Windows as follows:
|
|
*
|
|
* 0 Access to private PCI space.
|
|
*
|
|
* 1 Unused.
|
|
*/
|
|
#define PCI_MAPREG_MEM_ADDR(x) ((x) & 0xfffffff0)
|
|
sc->sc_owin[0].owin_xlate_lo =
|
|
PCI_MAPREG_MEM_ADDR(sc->sc_iwin[1].iwin_base_lo);
|
|
sc->sc_owin[0].owin_xlate_hi = sc->sc_iwin[1].iwin_base_hi;
|
|
/*
|
|
* Set the Secondary Outbound I/O window to map
|
|
* to PCI address 0 for all 64K of the I/O space.
|
|
*/
|
|
sc->sc_ioout_xlate = 0;
|
|
i80321_attach(sc);
|
|
i80321_dr.dr_sysbase = sc->sc_iwin[2].iwin_xlate;
|
|
i80321_dr.dr_busbase = PCI_MAPREG_MEM_ADDR(sc->sc_iwin[2].iwin_base_lo);
|
|
i80321_dr.dr_len = sc->sc_iwin[2].iwin_size;
|
|
dma_range_init = 1;
|
|
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_irq_rman.rm_type = RMAN_ARRAY;
|
|
sc->sc_irq_rman.rm_descr = "i80321 IRQs";
|
|
if (rman_init(&sc->sc_irq_rman) != 0 ||
|
|
rman_manage_region(&sc->sc_irq_rman, 0, 25) != 0)
|
|
panic("i80321_attach: failed to set up IRQ rman");
|
|
|
|
device_add_child(dev, "obio", 0);
|
|
device_add_child(dev, "itimer", 0);
|
|
device_add_child(dev, "iopwdog", 0);
|
|
#ifndef CPU_XSCALE_80219
|
|
device_add_child(dev, "iqseg", 0);
|
|
#endif
|
|
device_add_child(dev, "pcib", busno);
|
|
device_add_child(dev, "i80321_dma", 0);
|
|
device_add_child(dev, "i80321_dma", 1);
|
|
#ifndef CPU_XSCALE_80219
|
|
device_add_child(dev, "i80321_aau", 0);
|
|
#endif
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
arm_mask_irq(uintptr_t nb)
|
|
{
|
|
intr_enabled &= ~(1 << nb);
|
|
i80321_set_intrmask();
|
|
}
|
|
|
|
void
|
|
arm_unmask_irq(uintptr_t nb)
|
|
{
|
|
intr_enabled |= (1 << nb);
|
|
i80321_set_intrmask();
|
|
}
|
|
|
|
|
|
void
|
|
cpu_reset()
|
|
{
|
|
(void) disable_interrupts(I32_bit|F32_bit);
|
|
*(__volatile uint32_t *)(IQ80321_80321_VBASE + VERDE_ATU_BASE +
|
|
ATU_PCSR) = PCSR_RIB | PCSR_RPB;
|
|
printf("Reset failed!\n");
|
|
for(;;);
|
|
}
|
|
|
|
static struct resource *
|
|
iq80321_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
struct i80321_softc *sc = device_get_softc(dev);
|
|
struct resource *rv;
|
|
|
|
if (type == SYS_RES_IRQ) {
|
|
rv = rman_reserve_resource(&sc->sc_irq_rman,
|
|
start, end, count, flags, child);
|
|
if (rv != NULL)
|
|
rman_set_rid(rv, *rid);
|
|
return (rv);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
iq80321_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)
|
|
{
|
|
BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt, intr,
|
|
arg, cookiep);
|
|
intr_enabled |= 1 << rman_get_start(ires);
|
|
i80321_set_intrmask();
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
iq80321_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 iq80321_methods[] = {
|
|
DEVMETHOD(device_probe, iq80321_probe),
|
|
DEVMETHOD(device_attach, iq80321_attach),
|
|
DEVMETHOD(device_identify, iq80321_identify),
|
|
DEVMETHOD(bus_alloc_resource, iq80321_alloc_resource),
|
|
DEVMETHOD(bus_setup_intr, iq80321_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, iq80321_teardown_intr),
|
|
{0, 0},
|
|
};
|
|
|
|
static driver_t iq80321_driver = {
|
|
"iq",
|
|
iq80321_methods,
|
|
sizeof(struct i80321_softc),
|
|
};
|
|
static devclass_t iq80321_devclass;
|
|
|
|
DRIVER_MODULE(iq, nexus, iq80321_driver, iq80321_devclass, 0, 0);
|