[444] | 1 | /* |
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| 2 | * Copyright (c) 2011 Aeroflex Gaisler |
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| 3 | * |
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| 4 | * BSD license: |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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| 7 | * of this software and associated documentation files (the "Software"), to deal |
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| 8 | * in the Software without restriction, including without limitation the rights |
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| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 10 | * copies of the Software, and to permit persons to whom the Software is |
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| 11 | * furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included in |
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| 14 | * all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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| 22 | * THE SOFTWARE. |
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| 23 | */ |
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| 24 | |
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| 25 | |
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| 26 | #include <asm-leon/leon.h> |
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| 27 | #include <stdio.h> |
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| 28 | #include <stdlib.h> |
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| 29 | #include <string.h> |
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| 30 | |
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| 31 | /*#define DEBUG_CONFIG*/ |
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| 32 | |
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| 33 | /* Structure containing address to devices found on the Amba Plug&Play bus */ |
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| 34 | extern amba_confarea_type amba_conf; |
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| 35 | |
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| 36 | /*collect apb slaves*/ |
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| 37 | int |
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| 38 | amba_get_free_apbslv_devices (int vendor, int device, amba_apb_device * dev, |
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| 39 | int nr) |
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| 40 | { |
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| 41 | unsigned int i, conf, iobar, j = 0; |
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| 42 | #ifdef DEBUG_CONFIG |
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| 43 | printf ("Apbslv: search for apdslv devices\n"); |
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| 44 | #endif |
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| 45 | for (i = 0; i < amba_conf.apbslv.devnr && j < nr; i++) |
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| 46 | { |
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| 47 | conf = amba_get_confword (amba_conf.apbslv, i, 0); |
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| 48 | #ifdef DEBUG_CONFIG |
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| 49 | printf ("Apbslv: check(%x:%x)==(%x:%x)\n", vendor, device, |
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| 50 | amba_vendor (conf), amba_device (conf)); |
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| 51 | #endif |
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| 52 | if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device)) |
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| 53 | { |
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| 54 | if (!(amba_conf.apbslv.allocbits[i / 32] & (1 << (i & (32 - 1))))) |
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| 55 | { |
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| 56 | #ifdef DEBUG_CONFIG |
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| 57 | printf ("Apbslv: alloc device idx %i (%x:%x)\n", |
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| 58 | j, vendor, device); |
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| 59 | #endif |
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| 60 | amba_conf.apbslv.allocbits[i / 32] |= (1 << (i & (32 - 1))); |
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| 61 | dev[j].irq = amba_irq (conf); |
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| 62 | iobar = amba_apb_get_membar (amba_conf.apbslv, i); |
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| 63 | dev[j].start = |
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| 64 | amba_iobar_start (amba_conf.apbslv.apbmst[i], iobar); |
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| 65 | #ifdef DEBUG_CONFIG |
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| 66 | printf (" +bar: 0x%x \n", k, dev[j].start); |
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| 67 | #endif |
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| 68 | j++; |
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| 69 | } |
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| 70 | } |
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| 71 | } |
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| 72 | return j; |
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| 73 | } |
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| 74 | |
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| 75 | /*collect ahb slaves*/ |
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| 76 | int |
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| 77 | amba_get_free_ahbslv_devices (int vendor, int device, amba_ahb_device * dev, |
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| 78 | int nr) |
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| 79 | { |
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| 80 | unsigned int addr, i, conf, iobar, j = 0, k; |
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| 81 | #ifdef DEBUG_CONFIG |
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| 82 | printf ("Ahbslv: search for ahdslv devices\n"); |
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| 83 | #endif |
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| 84 | for (i = 0; i < amba_conf.ahbslv.devnr && j < nr; i++) |
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| 85 | { |
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| 86 | conf = amba_get_confword (amba_conf.ahbslv, i, 0); |
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| 87 | #ifdef DEBUG_CONFIG |
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| 88 | printf ("Ahbslv: check(%x:%x)==(%x:%x)\n", vendor, device, |
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| 89 | amba_vendor (conf), amba_device (conf)); |
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| 90 | #endif |
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| 91 | if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device)) |
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| 92 | { |
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| 93 | if (!(amba_conf.ahbslv.allocbits[i / 32] & (1 << (i & (32 - 1))))) |
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| 94 | { |
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| 95 | #ifdef DEBUG_CONFIG |
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| 96 | printf ("Ahbslv: alloc device idx %i (%x:%x)\n", |
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| 97 | j, vendor, device); |
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| 98 | #endif |
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| 99 | amba_conf.ahbslv.allocbits[i / 32] |= (1 << (i & (32 - 1))); |
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| 100 | dev[j].irq = amba_irq (conf); |
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| 101 | for (k = 0; k < 4; k++) |
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| 102 | { |
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| 103 | iobar = amba_ahb_get_membar (amba_conf.ahbslv, i, k); |
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| 104 | addr = amba_membar_start (iobar); |
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| 105 | if (amba_membar_type (iobar) == AMBA_TYPE_AHBIO) |
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| 106 | { |
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| 107 | addr = AMBA_TYPE_AHBIO_ADDR (addr); |
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| 108 | } |
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| 109 | dev[j].start[k] = addr; |
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| 110 | #ifdef DEBUG_CONFIG |
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| 111 | printf (" +%i: 0x%x \n", k, dev[j].start[k]); |
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| 112 | #endif |
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| 113 | } |
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| 114 | j++; |
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| 115 | } |
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| 116 | } |
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| 117 | } |
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| 118 | return j; |
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| 119 | } |
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