freebsd-nq/sys/mips/rmi/iodi.c
Randall Stewart 257c916acf More initial RMI files. Note that these so far do NOT
compile and many of them may disappear. For example
the xlr_boot1_console.c is old code that is ifdef'd out.
I will clean these sorts of things up as I make progress
on the port. So far the only thing I have I think straightened
out is the bits around the interupt handling... and hey that
may be broke ;-)
2009-10-15 21:14:42 +00:00

273 lines
8.4 KiB
C

/*-
* Copyright (c) 2003-2009 RMI Corporation
* 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. Neither the name of RMI Corporation, nor the names of its contributors,
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
* RMI_BSD */
#define __RMAN_RESOURCE_VISIBLE
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/reboot.h>
#include <sys/types.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <sys/module.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/bus.h>
#include <machine/intr_machdep.h>
#include <mips/xlr/iomap.h>
#include <mips/xlr/pic.h>
#include <mips/xlr/board.h>
#include <sys/rman.h>
extern void iodi_activateirqs(void);
extern bus_space_tag_t uart_bus_space_mem;
static struct resource *iodi_alloc_resource(device_t, device_t, int, int *,
u_long, u_long, u_long, u_int);
static int iodi_activate_resource(device_t, device_t, int, int,
struct resource *);
static int iodi_setup_intr(device_t, device_t, struct resource *, int,
driver_intr_t *, void *, void **);
struct iodi_softc *iodi_softc; /* There can be only one. */
static void pic_usb_ack(void *arg)
{
xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_PIC_OFFSET);
int irq = PIC_USB_IRQ ;
mtx_lock_spin(&xlr_pic_lock);
xlr_write_reg(mmio, PIC_INT_ACK, (1 << (irq - PIC_IRQ_BASE)));
mtx_unlock_spin(&xlr_pic_lock);
}
static int
iodi_setup_intr(device_t dev, device_t child,
struct resource *ires, int flags, driver_intr_t *intr, void *arg,
void **cookiep)
{
int level;
xlr_reg_t *mmio = xlr_io_mmio(XLR_IO_PIC_OFFSET);
xlr_reg_t reg;
/* FIXME is this the right place to fiddle with PIC? */
if (strcmp(device_get_name(child),"uart") == 0) {
/* FIXME uart 1? */
mtx_lock_spin(&xlr_pic_lock);
level = PIC_IRQ_IS_EDGE_TRIGGERED(PIC_IRT_UART_0_INDEX);
xlr_write_reg(mmio, PIC_IRT_0_UART_0, 0x01);
xlr_write_reg(mmio, PIC_IRT_1_UART_0, ((1 << 31) | (level<<30)|(1<<6)|(PIC_UART_0_IRQ)));
mtx_unlock_spin(&xlr_pic_lock);
cpu_establish_intr("uart", PIC_UART_0_IRQ,
(driver_intr_t *)intr, (void *)arg, flags, cookiep,
NULL, NULL);
} else if (strcmp(device_get_name(child),"rge") == 0) {
mtx_lock_spin(&xlr_pic_lock);
reg = xlr_read_reg(mmio, PIC_IRT_1_BASE + ires->r_flags - PIC_IRQ_BASE);
xlr_write_reg(mmio, PIC_IRT_1_BASE + ires->r_flags - PIC_IRQ_BASE, reg | (1<<6)|(1<<30)| (1<<31));
mtx_unlock_spin(&xlr_pic_lock);
cpu_establish_intr("rge", ires->r_flags,
(driver_intr_t *)intr, (void *)arg,
flags, cookiep, NULL, NULL);
} else if (strcmp(device_get_name(child),"ehci") == 0) {
mtx_lock_spin(&xlr_pic_lock);
reg = xlr_read_reg(mmio, PIC_IRT_1_BASE + PIC_USB_IRQ - PIC_IRQ_BASE);
xlr_write_reg(mmio, PIC_IRT_1_BASE + PIC_USB_IRQ - PIC_IRQ_BASE, reg | (1<<6)|(1<<30)| (1<<31));
mtx_unlock_spin(&xlr_pic_lock);
cpu_establish_intr("ehci", PIC_USB_IRQ,
(driver_intr_t *)intr, (void *)arg,
flags, cookiep, (flags & INTR_FAST)? NULL: pic_usb_ack , NULL);
}
BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, intr, arg,
cookiep);
return (0);
}
static struct resource *
iodi_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 resource *res = malloc(sizeof(*res), M_DEVBUF, M_WAITOK);
int unit;
#ifdef DEBUG
switch (type) {
case SYS_RES_IRQ:
device_printf(bus, "IRQ resource - for %s %lx-%lx\n",
device_get_nameunit(child), start, end);
break;
case SYS_RES_IOPORT:
device_printf(bus, "IOPORT resource - for %s %lx-%lx\n",
device_get_nameunit(child), start, end);
break;
case SYS_RES_MEMORY:
device_printf(bus, "MEMORY resource - for %s %lx-%lx\n",
device_get_nameunit(child), start, end);
break;
}
#endif
if (strcmp(device_get_name(child),"uart") == 0) {
if ((unit=device_get_unit(child)) == 0) { /* uart 0 */
res->r_bushandle = (xlr_io_base + XLR_IO_UART_0_OFFSET);
}
else if ( unit == 1) {
res->r_bushandle = (xlr_io_base + XLR_IO_UART_1_OFFSET);
}
else
printf("%s: Unknown uart unit\n", __FUNCTION__);
res->r_bustag = uart_bus_space_mem;
} else if (strcmp(device_get_name(child),"ehci") == 0) {
res->r_bushandle = 0xbef24000;
res->r_bustag = MIPS_BUS_SPACE_PCI;
} else if (strcmp(device_get_name(child),"cfi") == 0) {
res->r_bushandle = 0xbc000000;
res->r_bustag = 0;
}
res->r_start = *rid;
return (res);
}
static int
iodi_activate_resource(device_t bus, device_t child, int type, int rid,
struct resource *r)
{
return (0);
}
/* prototypes */
static int iodi_probe(device_t);
static int iodi_attach(device_t);
static void iodi_identify(driver_t *, device_t);
int
iodi_probe(device_t dev)
{
return 0;
}
void
iodi_identify(driver_t *driver, device_t parent)
{
BUS_ADD_CHILD(parent, 0, "iodi", 0);
}
int
iodi_attach(device_t dev)
{
device_t tmpd;
/*
* Attach each devices
*/
device_add_child(dev, "uart", 0);
device_add_child(dev, "xlr_i2c", 0);
if (xlr_board_info.usb)
device_add_child(dev, "ehci", 0);
if (xlr_board_info.cfi)
device_add_child(dev, "cfi", 0);
if (xlr_board_info.gmac_block[0].enabled) {
tmpd = device_add_child(dev, "rge", 0);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]);
tmpd = device_add_child(dev, "rge", 1);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]);
tmpd = device_add_child(dev, "rge", 2);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]);
tmpd = device_add_child(dev, "rge", 3);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[0]);
}
if (xlr_board_info.gmac_block[1].enabled) {
if (xlr_board_info.gmac_block[1].type == XLR_GMAC) {
tmpd = device_add_child(dev, "rge", 4);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
tmpd = device_add_child(dev, "rge", 5);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
tmpd = device_add_child(dev, "rge", 6);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
tmpd = device_add_child(dev, "rge", 7);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
} else if (xlr_board_info.gmac_block[1].type == XLR_XGMAC) {
#if 0 /* XGMAC not yet */
tmpd = device_add_child(dev, "rge", 4);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
tmpd = device_add_child(dev, "rge", 5);
device_set_ivars(tmpd, &xlr_board_info.gmac_block[1]);
#endif
} else
device_printf(dev, "Unknown type of gmac 1\n");
}
bus_generic_probe(dev);
bus_generic_attach(dev);
return 0;
}
static device_method_t iodi_methods[] = {
DEVMETHOD(device_probe, iodi_probe),
DEVMETHOD(device_attach, iodi_attach),
DEVMETHOD(device_identify, iodi_identify),
DEVMETHOD(bus_alloc_resource, iodi_alloc_resource),
DEVMETHOD(bus_activate_resource, iodi_activate_resource),
DEVMETHOD(bus_setup_intr, iodi_setup_intr),
{0, 0},
};
static driver_t iodi_driver = {
"iodi",
iodi_methods,
1 /* no softc */
};
static devclass_t iodi_devclass;
DRIVER_MODULE(iodi, nexus, iodi_driver, iodi_devclass, 0, 0);