diff options
Diffstat (limited to 'usr/src/boot/sys/boot/ofw/common/main.c')
| -rw-r--r-- | usr/src/boot/sys/boot/ofw/common/main.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/usr/src/boot/sys/boot/ofw/common/main.c b/usr/src/boot/sys/boot/ofw/common/main.c new file mode 100644 index 0000000000..0913f0c9c2 --- /dev/null +++ b/usr/src/boot/sys/boot/ofw/common/main.c @@ -0,0 +1,190 @@ +/*- + * Copyright (c) 2000 Benno Rice <benno@jeamland.net> + * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stand.h> +#include "openfirm.h" +#include "libofw.h" +#include "bootstrap.h" + +struct arch_switch archsw; /* MI/MD interface boundary */ + +extern char end[]; +extern char bootprog_name[]; +extern char bootprog_rev[]; +extern char bootprog_date[]; +extern char bootprog_maker[]; + +u_int32_t acells, scells; + +static char bootargs[128]; + +#define HEAP_SIZE 0x100000 + +#define OF_puts(fd, text) OF_write(fd, text, strlen(text)) + +void +init_heap(void) +{ + void *base; + ihandle_t stdout; + + if ((base = ofw_alloc_heap(HEAP_SIZE)) == (void *)0xffffffff) { + OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); + OF_puts(stdout, "Heap memory claim failed!\n"); + OF_enter(); + } + + setheap(base, (void *)((int)base + HEAP_SIZE)); +} + +uint64_t +memsize(void) +{ + phandle_t memoryp; + cell_t reg[24]; + int i, sz; + u_int64_t memsz; + + memsz = 0; + memoryp = OF_instance_to_package(memory); + + sz = OF_getprop(memoryp, "reg", ®, sizeof(reg)); + sz /= sizeof(reg[0]); + + for (i = 0; i < sz; i += (acells + scells)) { + if (scells > 1) + memsz += (uint64_t)reg[i + acells] << 32; + memsz += reg[i + acells + scells - 1]; + } + + return (memsz); +} + +int +main(int (*openfirm)(void *)) +{ + phandle_t root; + int i; + char bootpath[64]; + char *ch; + int bargc; + char **bargv; + + /* + * Initalise the Open Firmware routines by giving them the entry point. + */ + OF_init(openfirm); + + root = OF_finddevice("/"); + + scells = acells = 1; + OF_getprop(root, "#address-cells", &acells, sizeof(acells)); + OF_getprop(root, "#size-cells", &scells, sizeof(scells)); + + /* + * Initialise the heap as early as possible. Once this is done, + * alloc() is usable. The stack is buried inside us, so this is + * safe. + */ + init_heap(); + + /* + * Set up console. + */ + cons_probe(); + + /* + * March through the device switch probing for things. + */ + for (i = 0; devsw[i] != NULL; i++) + if (devsw[i]->dv_init != NULL) + (devsw[i]->dv_init)(); + + printf("\n"); + printf("%s, Revision %s\n", bootprog_name, bootprog_rev); + printf("(%s, %s)\n", bootprog_maker, bootprog_date); + printf("Memory: %lldKB\n", memsize() / 1024); + + OF_getprop(chosen, "bootpath", bootpath, 64); + ch = strchr(bootpath, ':'); + *ch = '\0'; + printf("Booted from: %s\n", bootpath); + + printf("\n"); + + /* + * Only parse the first bootarg if present. It should + * be simple to handle extra arguments + */ + OF_getprop(chosen, "bootargs", bootargs, sizeof(bootargs)); + bargc = 0; + parse(&bargc, &bargv, bootargs); + if (bargc == 1) + env_setenv("currdev", EV_VOLATILE, bargv[0], ofw_setcurrdev, + env_nounset); + else + env_setenv("currdev", EV_VOLATILE, bootpath, + ofw_setcurrdev, env_nounset); + env_setenv("loaddev", EV_VOLATILE, bootpath, env_noset, + env_nounset); + setenv("LINES", "24", 1); /* optional */ + + archsw.arch_getdev = ofw_getdev; + archsw.arch_copyin = ofw_copyin; + archsw.arch_copyout = ofw_copyout; + archsw.arch_readin = ofw_readin; + archsw.arch_autoload = ofw_autoload; + + interact(NULL); /* doesn't return */ + + OF_exit(); + + return 0; +} + +COMMAND_SET(halt, "halt", "halt the system", command_halt); + +static int +command_halt(int argc, char *argv[]) +{ + + OF_exit(); + return (CMD_OK); +} + +COMMAND_SET(memmap, "memmap", "print memory map", command_memmap); + +int +command_memmap(int argc, char **argv) +{ + + ofw_memmap(acells); + return (CMD_OK); +} |