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Annotation of sys/arch/jornada/jornada/autoconf.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: autoconf.c,v 1.9 2007/06/01 19:25:09 deraadt Exp $    */
        !             2: /*     $NetBSD: autoconf.c,v 1.2 2001/09/05 16:17:36 matt Exp $        */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1994-1998 Mark Brinicombe.
        !             6:  * Copyright (c) 1994 Brini.
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *     This product includes software developed by Mark Brinicombe for
        !            20:  *      the NetBSD project.
        !            21:  * 4. The name of the company nor the name of the author may be used to
        !            22:  *    endorse or promote products derived from this software without specific
        !            23:  *    prior written permission.
        !            24:  *
        !            25:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
        !            26:  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
        !            27:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            28:  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
        !            29:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            30:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            31:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            32:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            33:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            34:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            35:  * SUCH DAMAGE.
        !            36:  *
        !            37:  * RiscBSD kernel project
        !            38:  *
        !            39:  * autoconf.c
        !            40:  *
        !            41:  * Autoconfiguration functions
        !            42:  */
        !            43:
        !            44: #include <sys/param.h>
        !            45: #include <sys/systm.h>
        !            46: #include <sys/reboot.h>
        !            47: #include <sys/disklabel.h>
        !            48: #include <sys/device.h>
        !            49: #include <sys/conf.h>
        !            50: #include <sys/kernel.h>
        !            51: #include <sys/malloc.h>
        !            52:
        !            53: #include <uvm/uvm_extern.h>
        !            54:
        !            55: #include <machine/bootconfig.h>
        !            56: #include <machine/intr.h>
        !            57: #include <dev/cons.h>
        !            58:
        !            59: struct device *booted_device;
        !            60: int booted_partition;
        !            61: struct device *bootdv = NULL;
        !            62: extern char *boot_file;
        !            63:
        !            64: void dumpconf(void);
        !            65:
        !            66: void
        !            67: device_register(struct device *dev, void *aux)
        !            68: {
        !            69: }
        !            70:
        !            71: /*
        !            72:  * void cpu_configure()
        !            73:  *
        !            74:  * Configure all the root devices
        !            75:  * The root devices are expected to configure their own children
        !            76:  */
        !            77: void
        !            78: cpu_configure(void)
        !            79: {
        !            80:        softintr_init();
        !            81:
        !            82:        /*
        !            83:         * Since various PCI interrupts could be routed via the ICU
        !            84:         * (for PCI devices in the bridge) we need to set up the ICU
        !            85:         * now so that these interrupts can be established correctly
        !            86:         * i.e. This is a hack.
        !            87:         */
        !            88:
        !            89:        config_rootfound("mainbus", NULL);
        !            90:
        !            91:        /*
        !            92:         * We can not know which is our root disk, defer
        !            93:         * until we can checksum blocks to figure it out.
        !            94:         */
        !            95:        cold = 0;
        !            96:
        !            97:        /* Time to start taking interrupts so lets open the flood gates .... */
        !            98:        (void)spl0();
        !            99:
        !           100: }
        !           101:
        !           102: /*
        !           103:  * Now that we are fully operational, we can checksum the
        !           104:  * disks, and using some heuristics, hopefully are able to
        !           105:  * always determine the correct root disk.
        !           106:  */
        !           107: void
        !           108: diskconf(void)
        !           109: {
        !           110:        dev_t tmpdev;
        !           111:
        !           112: #if 0
        !           113:        /*
        !           114:         * Configure root, swap, and dump area.  This is
        !           115:         * currently done by running the same checksum
        !           116:         * algorithm over all known disks, as was done in
        !           117:         * /boot.  Then we basically fixup the *dev vars
        !           118:         * from the info we gleaned from this.
        !           119:         */
        !           120:        dkcsumattach();
        !           121: #endif
        !           122:
        !           123:        /* Lookup boot device from boot if not set by configuration */
        !           124:        if (bootdv == NULL) {
        !           125:                int len;
        !           126:                char *p;
        !           127:
        !           128:                /* boot_file is of the form wd0a:/bsd, we want 'wd0a' */
        !           129:                if ((p = strchr(boot_file, ':')) != NULL)
        !           130:                        len = p - boot_file;
        !           131:                else
        !           132:                        len = strlen(boot_file);
        !           133:
        !           134:                bootdv = parsedisk(boot_file, len, 0, &tmpdev);
        !           135:        }
        !           136:        if (bootdv == NULL)
        !           137:                printf("boot device: lookup '%s' failed.\n", boot_file);
        !           138:        else
        !           139:                printf("boot device: %s\n", bootdv->dv_xname);
        !           140:        setroot(bootdv, 0, RB_USERREQ);
        !           141:        dumpconf();
        !           142: }
        !           143:
        !           144: struct nam2blk nam2blk[] = {
        !           145:        { "wd",         16 },
        !           146:        { "sd",         24 },
        !           147:        { "cd",         26 },
        !           148:        { "rd",         18 },
        !           149:        { "raid",       71 },
        !           150:        { NULL,         -1 }
        !           151: };

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