/* $NetBSD: machdep.c,v 1.56 2018/07/15 05:16:43 maxv Exp $ */ /* * Copyright 2001, 2002 Wasabi Systems, Inc. * All rights reserved. * * Written by Eduardo Horvath and Simon Burge 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. */ /* * Copyright (C) 1995, 1996 Wolfgang Solfrank. * Copyright (C) 1995, 1996 TooLs GmbH. * 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 TooLs GmbH. * 4. The name of TooLs GmbH may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.56 2018/07/15 05:16:43 maxv Exp $"); #include "opt_compat_netbsd.h" #include "opt_ddb.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ksyms.h" #if defined(DDB) #include #include #endif #define TLB_PG_SIZE (16*1024*1024) /* * Global variables used here and there */ struct vm_map *phys_map = NULL; /* * This should probably be in autoconf! XXX */ char machine[] = MACHINE; /* from */ char machine_arch[] = MACHINE_ARCH; /* from */ char bootpath[256]; void initppc(vaddr_t, vaddr_t, char *, void *); static void dumpsys(void); #define MEMREGIONS 8 struct mem_region physmemr[MEMREGIONS]; /* Hard code memory */ struct mem_region availmemr[MEMREGIONS]; /* Who's supposed to set these up? */ struct board_cfg_data board_data; void initppc(vaddr_t startkernel, vaddr_t endkernel, char *args, void *info_block) { /* Disable all external interrupts */ mtdcr(DCR_UIC0_BASE + DCR_UIC_ER, 0); /* Initialize cache info for memcpy, etc. */ cpu_probe_cache(); /* Save info block */ memcpy(&board_data, info_block, sizeof(board_data)); memset(physmemr, 0, sizeof physmemr); memset(availmemr, 0, sizeof availmemr); physmemr[0].start = 0; physmemr[0].size = board_data.mem_size & ~PGOFSET; /* Lower memory reserved by eval board BIOS */ availmemr[0].start = startkernel; availmemr[0].size = board_data.mem_size - availmemr[0].start; /* Linear map kernel memory */ for (vaddr_t va = 0; va < endkernel; va += TLB_PG_SIZE) { ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); } /* Map console after physmem (see pmap_tlbmiss()) */ ppc4xx_tlb_reserve(0xef000000, roundup(physmemr[0].size, TLB_PG_SIZE), TLB_PG_SIZE, TLB_I | TLB_G); mtspr(SPR_TCR, 0); /* disable all timers */ ibm4xx_init(startkernel, endkernel, pic_ext_intr); #ifdef DEBUG printf("Board config data:\n"); printf(" usr_config_ver = %s\n", board_data.usr_config_ver); printf(" rom_sw_ver = %s\n", board_data.rom_sw_ver); printf(" mem_size = %u\n", board_data.mem_size); printf(" mac_address_local = %02x:%02x:%02x:%02x:%02x:%02x\n", board_data.mac_address_local[0], board_data.mac_address_local[1], board_data.mac_address_local[2], board_data.mac_address_local[3], board_data.mac_address_local[4], board_data.mac_address_local[5]); printf(" mac_address_pci = %02x:%02x:%02x:%02x:%02x:%02x\n", board_data.mac_address_pci[0], board_data.mac_address_pci[1], board_data.mac_address_pci[2], board_data.mac_address_pci[3], board_data.mac_address_pci[4], board_data.mac_address_pci[5]); printf(" processor_speed = %u\n", board_data.processor_speed); printf(" plb_speed = %u\n", board_data.plb_speed); printf(" pci_speed = %u\n", board_data.pci_speed); #endif #ifdef DDB if (boothowto & RB_KDB) Debugger(); #endif /* * Look for the ibm4xx modules in the right place. */ module_machine = module_machine_ibm4xx; } /* * Machine dependent startup code. */ void cpu_startup(void) { vaddr_t minaddr, maxaddr; prop_number_t pn; prop_data_t pd; char pbuf[9]; /* * Initialize error message buffer (at end of core). */ #if 0 /* For some reason this fails... --Artem * Besides, do we really have to put it at the end of core? * Let's use static buffer for now */ if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE), 0, UVM_KMF_VAONLY))) panic("startup: no room for message buffer"); for (i = 0; i < btoc(MSGBUFSIZE); i++) pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE, msgbuf_paddr + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, 0); initmsgbuf((void *)msgbuf_vaddr, round_page(MSGBUFSIZE)); #else initmsgbuf((void *)msgbuf, round_page(MSGBUFSIZE)); #endif printf("%s%s", copyright, version); printf("Walnut PowerPC 405GP Evaluation Board\n"); format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); printf("total memory = %s\n", pbuf); minaddr = 0; /* * Allocate a submap for physio */ phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, VM_PHYS_SIZE, 0, false, NULL); /* * No need to allocate an mbuf cluster submap. Mbuf clusters * are allocated via the pool allocator, and we use direct-mapped * pool pages. */ format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); printf("avail memory = %s\n", pbuf); /* * Set up the board properties dictionary. */ board_properties = prop_dictionary_create(); KASSERT(board_properties != NULL); pn = prop_number_create_integer(board_data.mem_size); KASSERT(pn != NULL); if (prop_dictionary_set(board_properties, "mem-size", pn) == false) panic("setting mem-size"); prop_object_release(pn); pd = prop_data_create_data_nocopy(board_data.mac_address_local, sizeof(board_data.mac_address_local)); KASSERT(pd != NULL); if (prop_dictionary_set(board_properties, "emac0-mac-addr", pd) == false) panic("setting emac0-mac-addr"); prop_object_release(pd); pd = prop_data_create_data_nocopy(board_data.mac_address_pci, sizeof(board_data.mac_address_pci)); KASSERT(pd != NULL); if (prop_dictionary_set(board_properties, "sip0-mac-addr", pd) == false) panic("setting sip0-mac-addr"); prop_object_release(pd); pn = prop_number_create_integer(board_data.processor_speed); KASSERT(pn != NULL); if (prop_dictionary_set(board_properties, "processor-frequency", pn) == false) panic("setting processor-frequency"); prop_object_release(pn); /* * Now that we have VM, malloc()s are OK in bus_space. */ bus_space_mallocok(); fake_mapiodev = 0; } static void dumpsys(void) { printf("dumpsys: TBD\n"); } /* * Halt or reboot the machine after syncing/dumping according to howto. */ void cpu_reboot(int howto, char *what) { static int syncing; static char str[256]; char *ap = str, *ap1 = ap; boothowto = howto; if (!cold && !(howto & RB_NOSYNC) && !syncing) { syncing = 1; vfs_shutdown(); /* sync */ resettodr(); /* set wall clock */ } splhigh(); if (!cold && (howto & RB_DUMP)) dumpsys(); doshutdownhooks(); pmf_system_shutdown(boothowto); if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { /* Power off here if we know how...*/ } if (howto & RB_HALT) { printf("halted\n\n"); goto reboot; /* XXX for now... */ #ifdef DDB printf("dropping to debugger\n"); while(1) Debugger(); #endif } printf("rebooting\n\n"); if (what && *what) { if (strlen(what) > sizeof str - 5) printf("boot string too large, ignored\n"); else { strcpy(str, what); ap1 = ap = str + strlen(str); *ap++ = ' '; } } *ap++ = '-'; if (howto & RB_SINGLE) *ap++ = 's'; if (howto & RB_KDB) *ap++ = 'd'; *ap++ = 0; if (ap[-2] == '-') *ap1 = 0; /* flush cache for msgbuf */ __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); reboot: ppc4xx_reset(); printf("ppc4xx_reset() failed!\n"); #ifdef DDB while(1) Debugger(); #else while (1) /* nothing */; #endif } void mem_regions(struct mem_region **mem, struct mem_region **avail) { *mem = physmemr; *avail = availmemr; } int ibm4xx_pci_bus_maxdevs(void *v, int busno) { /* * Bus number is irrelevant. Configuration Mechanism 1 is in * use, can have devices 0-32 (i.e. the `normal' range). */ return 5; } int ibm4xx_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) { int pin = pa->pa_intrpin; int dev = pa->pa_device; if (pin == 0) /* No IRQ used. */ goto bad; if (pin > 4) { printf("%s: bad interrupt pin %d\n", __func__, pin); goto bad; } /* * We need to map the interrupt pin to the interrupt bit in the UIC * associated with it. This is highly machine-dependent. */ switch(dev) { case 1: case 2: case 3: case 4: *ihp = 27 + dev; break; default: printf("Hmm.. PCI device %d should not exist on this board\n", dev); goto bad; } return 0; bad: *ihp = -1; return 1; } void ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz, int *iline) { if (bus == 0) { switch(dev) { case 1: case 2: case 3: case 4: *iline = 31 - dev; } } else *iline = 20 + ((swiz + dev + 1) & 3); }