/*-
* Copyright (c) 2006 Itronix Inc.
* All rights reserved.
*
* Portions written by Garrett D'Amore for Itronix 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. The name of Itronix Inc. may not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ITRONIX 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 ITRONIX 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.
*/
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department, The Mach Operating System project at
* Carnegie-Mellon University and Ralph Campbell.
*
* 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 the University 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 REGENTS 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 REGENTS 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.
*
* @(#)machdep.c 8.3 (Berkeley) 1/12/94
* from: Utah Hdr: machdep.c 1.63 91/04/24
*/
/* set CPU model info for sysctl_hw */
cpu_setmodel("%s", board->ab_name);
/* save the yamon environment pointer */
yamon_envp = envp;
/* Use YAMON callbacks for early console I/O */
cn_tab = &yamon_promcd;
/*
* Set up the exception vectors and CPU-specific function
* vectors early on. We need the wbflush() vector set up
* before comcnattach() is called (or at least before the
* first printf() after that is called).
* Sets up mips_cpu_flags that may be queried by other
* functions called during startup.
* Also clears the I+D caches.
*/
mips_vector_init(NULL, false);
uvm_md_init();
/*
* Use YAMON's CPU frequency if available.
*/
freqok = yamon_setcpufreq(1);
/*
* Initialize bus space tags.
*/
au_cpureg_bus_mem_init(&alchemy_cpuregt, &alchemy_cpuregt);
aubus_st = &alchemy_cpuregt;
/*
* Calibrate the timer if YAMON failed to tell us.
*/
if (!freqok) {
bus_space_map(aubus_st, PC_BASE, PC_SIZE, 0, &sh);
au_cal_timers(aubus_st, sh);
bus_space_unmap(aubus_st, sh, PC_SIZE);
}
/*
* Bring up the console.
*/
#if NCOM > 0
#ifdef CONSPEED
if (aucomcnrate == 0)
aucomcnrate = CONSPEED;
#else /* !CONSPEED */
/*
* Learn default console speed. We use the YAMON environment,
* though we could probably also figure it out by checking the
* aucom registers directly.
*/
if ((aucomcnrate == 0) && ((cp = yamon_getenv("modetty0")) != NULL))
aucomcnrate = strtoul(cp, NULL, 0);
if (aucomcnrate == 0) {
printf("FATAL: `modetty0' YAMON variable not set. Set it\n");
printf(" to the speed of the console and try again.\n");
printf(" Or, build a kernel with the `CONSPEED' "
"option.\n");
panic("mach_init");
}
#endif /* CONSPEED */
/*
* Delay to allow firmware putchars to complete.
* FIFO depth * character time.
* character time = (1000000 / (defaultrate / 10))
*/
delay(160000000 / aucomcnrate);
if (com_aubus_cnattach(UART0_BASE, aucomcnrate) != 0)
panic("mach_init: unable to initialize serial console");
#else /* NCOM > 0 */
panic("mach_init: not configured to use serial console");
#endif /* NAUCOM > 0 */
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
for (i = 1; i < argc; i++) {
for (cp = argv[i]; *cp; cp++) {
/* Ignore superfluous '-', if there is one */
if (*cp == '-')
continue;
howto = 0;
BOOT_FLAG(*cp, howto);
if (! howto)
printf("bootflag '%c' not recognised\n", *cp);
else
boothowto |= howto;
}
}
/*
* Determine the memory size. Use the `memsize' PMON
* variable. If that's not available, panic.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
#if defined(MEMSIZE)
memsize = MEMSIZE;
#else
if (memsize == 0) {
if ((cp = yamon_getenv("memsize")) != NULL)
memsize = strtoul(cp, NULL, 0);
else {
printf("FATAL: `memsize' YAMON variable not set. Set it to\n");
printf(" the amount of memory (in MB) and try again.\n");
printf(" Or, build a kernel with the `MEMSIZE' "
"option.\n");
panic("mach_init");
}
}
#endif /* MEMSIZE */
printf("Memory size: 0x%08lx\n", memsize);
physmem = btoc(memsize);
/*
* Load the rest of the available pages into the VM system.
*/
mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
mem_clusters, mem_cluster_cnt, NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
/*
* Initialize debuggers, and break into them, if appropriate.
*/
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
consinit(void)
{
/*
* Everything related to console initialization is done
* in mach_init().
*/
}
/*
* Synchronize the disks....
*/
vfs_shutdown();
}
/* Disable interrupts. */
splhigh();
if (boothowto & RB_DUMP)
dumpsys();
haltsys:
/* Run any shutdown hooks. */
doshutdownhooks();
pmf_system_shutdown(boothowto);
if ((boothowto & RB_POWERDOWN) == RB_POWERDOWN)
if (board && board->ab_poweroff)
board->ab_poweroff();
/*
* YAMON may autoboot (depending on settings), and we cannot pass
* flags to it (at least I haven't figured out how to yet), so
* we "pseudo-halt" now.
*/
if (boothowto & RB_HALT) {
printf("\n");
printf("The operating system has halted.\n");
printf("Please press any key to reboot.\n\n");
cnpollc(1); /* For proper keyboard command handling */
cngetc();
cnpollc(0);
}
printf("resetting board...\n\n");
/*
* Try to use board-specific reset logic, which might involve a better
* hardware reset.
*/
if (board->ab_reboot)
board->ab_reboot();
#if 1
/* XXX
* For some reason we are leaving the ethernet MAC in a state where
* YAMON isn't happy with it. So just call the reset vector (grr,
* Alchemy YAMON doesn't have a "reset" command).
*/
mips_icache_sync_all();
mips_dcache_wbinv_all();
__asm volatile("jr %0" :: "r"(MIPS_RESET_EXC_VEC));
#else
printf("%s\n\n", ((howto & RB_HALT) != 0) ? "halted." : "rebooting...");
yamon_exit(boothowto);
printf("Oops, back from yamon_exit()\n\nSpinning...");
#endif
for (;;)
/* spin forever */ ; /* XXX */
/*NOTREACHED*/
}
/*
* Export our interrupt map function so aupci can find it.
*/
int
aupci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
{
const struct alchemy_board *board;
