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| Rev | Author | Line No. | Line |
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| 885 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
| 3 | * Copyright (c) 2006 Jakub Jermar |
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| 885 | decky | 4 | * All rights reserved. |
| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * - Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * - Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * - The name of the author may not be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 1789 | jermar | 29 | |
| 30 | /** |
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| 31 | * @file |
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| 32 | * @brief Architecture dependent parts of OpenFirmware interface. |
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| 33 | */ |
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| 34 | |||
| 35 | #include <ofwarch.h> |
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| 1764 | jermar | 36 | #include <ofw.h> |
| 37 | #include <printf.h> |
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| 1881 | jermar | 38 | #include <string.h> |
| 1903 | jermar | 39 | #include <register.h> |
| 1881 | jermar | 40 | #include "main.h" |
| 1978 | jermar | 41 | #include "asm.h" |
| 885 | decky | 42 | |
| 1764 | jermar | 43 | void write(const char *str, const int len) |
| 885 | decky | 44 | { |
| 1773 | jermar | 45 | int i; |
| 46 | |||
| 47 | for (i = 0; i < len; i++) { |
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| 48 | if (str[i] == '\n') |
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| 49 | ofw_write("\r", 1); |
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| 50 | ofw_write(&str[i], 1); |
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| 51 | } |
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| 885 | decky | 52 | } |
| 1783 | jermar | 53 | |
| 54 | int ofw_translate_failed(ofw_arg_t flag) |
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| 55 | { |
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| 56 | return flag != -1; |
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| 57 | } |
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| 1789 | jermar | 58 | |
| 1899 | jermar | 59 | int ofw_cpu(void) |
| 1881 | jermar | 60 | { |
| 61 | char type_name[BUF_SIZE]; |
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| 62 | phandle node; |
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| 3479 | rimsky | 63 | phandle ssm; |
| 3467 | rimsky | 64 | |
| 3479 | rimsky | 65 | ssm = ofw_find_device("/ssm@0,0"); |
| 66 | if (ssm == -1) { |
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| 67 | node = ofw_get_child_node(ofw_root); |
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| 68 | } else { |
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| 69 | node = ofw_get_child_node(ssm); |
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| 70 | } |
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| 71 | |||
| 1881 | jermar | 72 | if (node == 0 || node == -1) { |
| 73 | printf("Could not find any child nodes of the root node.\n"); |
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| 1899 | jermar | 74 | return 0; |
| 1881 | jermar | 75 | } |
| 76 | |||
| 1899 | jermar | 77 | uint64_t current_mid; |
| 78 | |||
| 3146 | jermar | 79 | asm volatile ("ldxa [%1] %2, %0\n" |
| 80 | : "=r" (current_mid) |
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| 3479 | rimsky | 81 | : "r" (0), "i" (ASI_ICBUS_CONFIG)); |
| 82 | current_mid >>= ICBUS_CONFIG_MID_SHIFT; |
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| 83 | current_mid &= ICBUS_CONFIG_MID_MASK; |
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| 1903 | jermar | 84 | |
| 85 | int cpus; |
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| 1899 | jermar | 86 | |
| 3146 | jermar | 87 | for (cpus = 0; node != 0 && node != -1; node = ofw_get_peer_node(node), |
| 88 | cpus++) { |
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| 89 | if (ofw_get_property(node, "device_type", type_name, |
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| 90 | sizeof(type_name)) > 0) { |
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| 1896 | jermar | 91 | if (strcmp(type_name, "cpu") == 0) { |
| 1899 | jermar | 92 | uint32_t mid; |
| 1881 | jermar | 93 | |
| 3467 | rimsky | 94 | /* "upa-portid" for US, "portid" for US-III */ |
| 95 | if (ofw_get_property( |
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| 96 | node, "upa-portid", |
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| 97 | &mid, sizeof(mid)) <= 0 |
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| 98 | && ofw_get_property(node, "portid", |
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| 99 | &mid, sizeof(mid)) <= 0) |
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| 1881 | jermar | 100 | continue; |
| 101 | |||
| 1899 | jermar | 102 | if (current_mid != mid) { |
| 103 | /* |
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| 104 | * Start secondary processor. |
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| 105 | */ |
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| 3146 | jermar | 106 | (void) ofw_call("SUNW,start-cpu", 3, 1, |
| 107 | NULL, node, KERNEL_VIRTUAL_ADDRESS, |
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| 108 | bootinfo.physmem_start | |
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| 109 | AP_PROCESSOR); |
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| 1899 | jermar | 110 | } |
| 1881 | jermar | 111 | } |
| 112 | } |
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| 1899 | jermar | 113 | } |
| 1881 | jermar | 114 | |
| 1903 | jermar | 115 | return cpus; |
| 1881 | jermar | 116 | } |
| 1978 | jermar | 117 | |
| 118 | /** Get physical memory starting address. |
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| 119 | * |
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| 120 | * @param start Pointer to variable where the physical memory starting |
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| 121 | * address will be stored. |
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| 122 | * |
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| 123 | * @return Non-zero on succes, zero on failure. |
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| 124 | */ |
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| 125 | int ofw_get_physmem_start(uintptr_t *start) |
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| 126 | { |
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| 127 | uint32_t memreg[4]; |
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| 128 | |||
| 129 | if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0) |
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| 130 | return 0; |
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| 131 | |||
| 132 | *start = (((uint64_t) memreg[0]) << 32) | memreg[1]; |
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| 133 | return 1; |
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| 134 | } |
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| 135 |