/* $OpenBSD: rbus_machdep.c,v 1.6 2004/03/23 03:25:46 drahn Exp $ */
/* $NetBSD: rbus_machdep.c,v 1.2 1999/10/15 06:43:06 haya Exp $ */
/*
* Copyright (c) 1999
* HAYAKAWA Koichi. All rights reserved.
*
* 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 by HAYAKAWA Koichi.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/extent.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <dev/cardbus/rbus.h>
#include <dev/pci/pcivar.h>
#include <arch/macppc/pci/pcibrvar.h>
void macppc_cardbus_init(pci_chipset_tag_t pc, pcitag_t tag);
/**********************************************************************
* rbus_tag_t rbus_fakeparent_mem(struct pci_attach_args *pa)
*
* This function makes an rbus tag for memory space. This rbus tag
* shares the all memory region of ex_iomem.
**********************************************************************/
#define RBUS_MEM_SIZE 0x10000000
rbus_tag_t
rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa)
{
bus_addr_t start;
bus_size_t size;
struct extent *ex;
macppc_cardbus_init(pa->pa_pc, pa->pa_tag);
size = RBUS_MEM_SIZE;
if ((ex = pciaddr_search(PCIADDR_SEARCH_MEM, self, &start, size)) ==
NULL)
{
/* XXX */
printf("failed\n");
}
return rbus_new_root_share(pa->pa_memt, ex, start, size, 0);
}
/**********************************************************************
* rbus_tag_t rbus_pccbb_parent_io(struct pci_attach_args *pa)
**********************************************************************/
#define RBUS_IO_SIZE 0x1000
rbus_tag_t
rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa)
{
struct extent *ex;
bus_addr_t start;
bus_size_t size;
size = RBUS_IO_SIZE;
if ((ex = pciaddr_search(PCIADDR_SEARCH_IO, self, &start, size)) ==
NULL)
{
/* XXX */
printf("failed\n");
}
return rbus_new_root_share(pa->pa_iot, ex, start, size, 0);
}
/*
* Big ugly hack to enable bridge/fix interrupts
*/
void
macppc_cardbus_init(pci_chipset_tag_t pc, pcitag_t tag)
{
u_int x;
static int initted = 0;
if (initted)
return;
initted = 1;
/* XXX What about other bridges? */
x = pci_conf_read(pc, tag, PCI_ID_REG);
if (PCI_VENDOR(x) == PCI_VENDOR_TI &&
PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1211) {
/* For CardBus card. */
pci_conf_write(pc, tag, 0x18, 0x10010100);
/* Route INTA to MFUNC0 */
x = pci_conf_read(pc, tag, 0x8c);
x |= 0x02;
pci_conf_write(pc, tag, 0x8c, x);
tag = pci_make_tag(pc, 0, 0, 0);
x = pci_conf_read(pc, tag, PCI_ID_REG);
if (PCI_VENDOR(x) == PCI_VENDOR_MOT &&
PCI_PRODUCT(x) == PCI_PRODUCT_MOT_MPC106) {
/* Set subordinate bus number to 1. */
x = pci_conf_read(pc, tag, 0x40);
x |= 1 << 8;
pci_conf_write(pc, tag, 0x40, x);
}
}
if (PCI_VENDOR(x) == PCI_VENDOR_TI &&
(PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1410 ||
PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1510)) {
/* dont mess with the bus numbers or latency timer */
/* Route INTA to MFUNC0 */
x = pci_conf_read(pc, tag, 0x8c);
x |= 0x02;
pci_conf_write(pc, tag, 0x8c, x);
}
}