1 /*- 2 * Copyright (c) 2015 Justin Hibbits 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/malloc.h> 35 #include <sys/slicer.h> 36 #include <sys/smp.h> 37 38 #include <machine/platform.h> 39 #include <machine/platformvar.h> 40 41 #include <dev/nand/nand.h> 42 #include <dev/ofw/openfirm.h> 43 #include <geom/geom_disk.h> 44 45 #include <powerpc/mpc85xx/mpc85xx.h> 46 47 #include "platform_if.h" 48 49 static int rb_probe(platform_t); 50 static int rb_attach(platform_t); 51 52 static platform_method_t rb_methods[] = { 53 PLATFORMMETHOD(platform_probe, rb_probe), 54 PLATFORMMETHOD(platform_attach, rb_attach), 55 PLATFORMMETHOD_END 56 }; 57 58 DEFINE_CLASS_1(rb, rb_platform, rb_methods, 0, mpc85xx_platform); 59 60 PLATFORM_DEF(rb_platform); 61 62 /* Slicer operates on the NAND controller, so we have to find the chip. */ 63 static int 64 rb_nand_slicer(device_t dev, struct flash_slice *slices, int *nslices) 65 { 66 struct nand_chip *chip; 67 device_t *children; 68 int n; 69 70 if (device_get_children(dev, &children, &n) != 0) { 71 panic("Slicer called on controller with no child!"); 72 } 73 dev = children[0]; 74 free(children, M_TEMP); 75 76 if (device_get_children(dev, &children, &n) != 0) { 77 panic("Slicer called on controller with nandbus but no child!"); 78 } 79 dev = children[0]; 80 free(children, M_TEMP); 81 82 chip = device_get_softc(dev); 83 *nslices = 2; 84 slices[0].base = 0; 85 slices[0].size = 4 * 1024 * 1024; 86 slices[0].label = "boot"; 87 88 slices[1].base = 4 * 1024 * 1024; 89 slices[1].size = chip->ndisk->d_mediasize - slices[0].size; 90 slices[1].label = "rootfs"; 91 92 return (0); 93 } 94 95 static int 96 rb_probe(platform_t plat) 97 { 98 phandle_t rootnode; 99 char model[32]; 100 101 rootnode = OF_finddevice("/"); 102 103 if (OF_getprop(rootnode, "model", model, sizeof(model)) > 0) { 104 if (strcmp(model, "RB800") == 0) 105 return (BUS_PROBE_SPECIFIC); 106 } 107 108 return (ENXIO); 109 } 110 111 static int 112 rb_attach(platform_t plat) 113 { 114 int error; 115 116 error = mpc85xx_attach(plat); 117 if (error) 118 return (error); 119 120 flash_register_slicer(rb_nand_slicer); 121 122 return (0); 123 } 124