/* $NetBSD: autoconf.c,v 1.3 2026/06/17 15:08:53 rkujawa Exp $ */ /* * Copyright (c) 2012, 2014, 2024, 2026 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Radoslaw Kujawa. * * 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 AUTHOR ``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 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 2004 Shigeyuki Fukushima. * All rights reserved. * * Written by Shigeyuki Fukushima for The NetBSD Project. * * 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 the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED THE AUTHOR ``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 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. */ /* * Autoconfiguration for the ACube Sam460ex (AMCC 460EX). * Modeled on evbppc/obs405/obs600_autoconf.c. */ #include __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.3 2026/06/17 15:08:53 rkujawa Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include /* Set once console=pci has made a PCI display the console (see below). */ static bool sam460ex_pci_console_found; /* * Determine device configuration for a machine. */ void cpu_configure(void) { /* UIC */ mtdcr(DCR_UIC1_BASE + DCR_UIC_PR, mfdcr(DCR_UIC1_BASE + DCR_UIC_PR) & ~0x80000000); mtdcr(DCR_UIC1_BASE + DCR_UIC_TR, mfdcr(DCR_UIC1_BASE + DCR_UIC_TR) & ~0x80000000); mtdcr(DCR_UIC1_BASE + DCR_UIC_SR, 0x80000000); mtdcr(DCR_UIC3_BASE + DCR_UIC_PR, mfdcr(DCR_UIC3_BASE + DCR_UIC_PR) & ~0x000ff000); mtdcr(DCR_UIC3_BASE + DCR_UIC_TR, mfdcr(DCR_UIC3_BASE + DCR_UIC_TR) & ~0x000ff000); mtdcr(DCR_UIC3_BASE + DCR_UIC_SR, 0x000ff000); /* * Initialize intr and add the cascaded UICs. * UIC0 = 0, UIC1 = +32, UIC2 = +64, UIC3 = +96. */ intr_init(); pic_add(&pic_uic1); pic_add(&pic_uic2); pic_add(&pic_uic3); if (config_rootfound("plb", NULL) == NULL) panic("configure: mainbus not configured"); if (sam460ex_console == SAM460EX_CONS_PCI && !sam460ex_pci_console_found) printf("sam460ex: console=pci: no suitable PCI display found, " "using serial\n"); pic_finish_setup(); genppc_cpu_configure(); } void device_register(device_t dev, void *aux) { ibm4xx_device_register(dev, aux, sam460ex_com_freq()); /* console=sm502: the on-board SM502 voyagerfb becomes the console */ if (sam460ex_console == SAM460EX_CONS_SM502 && device_is_a(dev, "voyagerfb")) prop_dictionary_set_bool(device_properties(dev), "is_console", true); /* * console=pci: when first non-SM502 PCI display device attaches, make * a console */ if (sam460ex_console == SAM460EX_CONS_PCI && !sam460ex_pci_console_found && device_parent(dev) != NULL && device_is_a(device_parent(dev), "pci")) { struct pci_attach_args *pa = aux; const int *bdf = sam460ex_console_pci_bdf; if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY && !(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SILMOTION && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SILMOTION_SM502) && (bdf[0] == -1 || bdf[0] == pa->pa_bus) && (bdf[1] == -1 || bdf[1] == pa->pa_device) && (bdf[2] == -1 || bdf[2] == pa->pa_function)) { aprint_normal("sam460ex: console=pci: selected PCI display " "at %d:%d:%d (vendor 0x%04x product 0x%04x)\n", pa->pa_bus, pa->pa_device, pa->pa_function, PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id)); prop_dictionary_set_bool(device_properties(dev), "is_console", true); sam460ex_pci_console_found = true; } } /* * Match a "root=" from the bootargs. */ if (bootspec != NULL) { size_t len = strlen(bootspec); int part = 0; if (len > 1 && bootspec[len - 1] >= 'a' && bootspec[len - 1] < 'a' + MAXPARTITIONS && bootspec[len - 2] >= '0' && bootspec[len - 2] <= '9') { part = bootspec[len - 1] - 'a'; len--; } if (strncmp(device_xname(dev), bootspec, len) == 0 && device_xname(dev)[len] == '\0') { booted_device = dev; booted_partition = part; } } }