1/* ********************************************************************* 2 * BCM1480 Board Support Package 3 * 4 * CPU1 test routines File: CPU1TEST.S 5 * 6 * This file gives CPU1 something to do. 7 * 8 * Author: Mitch Lichtenberg 9 * 10 ********************************************************************* 11 * 12 * Copyright 2000,2001,2002,2003 13 * Broadcom Corporation. All rights reserved. 14 * 15 * This software is furnished under license and may be used and 16 * copied only in accordance with the following terms and 17 * conditions. Subject to these conditions, you may download, 18 * copy, install, use, modify and distribute modified or unmodified 19 * copies of this software in source and/or binary form. No title 20 * or ownership is transferred hereby. 21 * 22 * 1) Any source code used, modified or distributed must reproduce 23 * and retain this copyright notice and list of conditions 24 * as they appear in the source file. 25 * 26 * 2) No right is granted to use any trade name, trademark, or 27 * logo of Broadcom Corporation. The "Broadcom Corporation" 28 * name may not be used to endorse or promote products derived 29 * from this software without the prior written permission of 30 * Broadcom Corporation. 31 * 32 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 33 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 34 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 35 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 36 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 37 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 38 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 40 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 42 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 44 * THE POSSIBILITY OF SUCH DAMAGE. 45 ********************************************************************* */ 46 47#include "sbmips.h" 48#include "bsp_config.h" 49#include "cpu_config.h" 50#include "mipsmacros.h" 51#include "bcm91480b.h" 52#include "bcm1480_regs.h" 53 54 .text 55 56 57 58#define SETLEDS(a,b,c,d) \ 59 li a0,(((a)<<24)|((b)<<16)|((c)<<8)|(d)) ; \ 60 JAL(cpu1_setleds) 61 62 63 .text 64 65 66/* ********************************************************************* 67 * BOARD_SETLEDS(x) 68 * 69 * Set LEDs for boot-time progress indication. Not used if 70 * the board does not have progress LEDs. This routine 71 * must not call any other routines, since it may be invoked 72 * either from KSEG0 or KSEG1 and it may be invoked 73 * whether or not the icache is operational. 74 * 75 * Input parameters: 76 * a0 - LED value (8 bits per character, 4 characters) 77 * 78 * Return value: 79 * nothing 80 * 81 * Registers used: 82 * t0,t1,t2,t3 83 ********************************************************************* */ 84 85 86#define LED_CHAR0 (8*3) 87#define LED_CHAR1 (8*2) 88#define LED_CHAR2 (8*1) 89#define LED_CHAR3 (8*0) 90 91LEAF(cpu1_setleds) 92 93 li t0,PHYS_TO_K1(LEDS_PHYS) 94 95 rol a0,a0,8 96 and t1,a0,0xFF 97 sb t1,LED_CHAR0(t0) 98 99 rol a0,a0,8 100 and t1,a0,0xFF 101 sb t1,LED_CHAR1(t0) 102 103 rol a0,a0,8 104 and t1,a0,0xFF 105 sb t1,LED_CHAR2(t0) 106 107 rol a0,a0,8 108 and t1,a0,0xFF 109 sb t1,LED_CHAR3(t0) 110 111 j ra 112 113END(cpu1_setleds) 114 115 116/* ********************************************************************* 117 * CPU1PROC() 118 * 119 * This routine is started on the secondary processor. It just 120 * makes some noise on the LEDs. 121 * 122 * Input parameters: 123 * nothing 124 * 125 * Return value: 126 * does not return 127 ********************************************************************* */ 128 129#ifdef _FUNCSIM_ 130#define WAITCOUNT 100000 131#else 132#define WAITCOUNT 300000000 133#endif 134 135delay: 136 mtc0 zero,C0_COUNT 1371: li t0,WAITCOUNT 138 mfc0 t1,C0_COUNT 139 blt t1,t0,1b 140 141 j ra 142 143 144#define GET_CUR_CPU(reg) \ 145 mfc0 reg,C0_PRID ; \ 146 srl reg,reg,25 ; \ 147 and reg,reg,7 148 149LEAF(cpu1proc) 150 151 li s2,PHYS_TO_K1(LEDS_PHYS+LED_CHAR3+1) 152 153 /* Clear display to spaces */ 154 li t0,' ' 155 sb t0,-1(s2) 156 sb t0,-2(s2) 157 sb t0,-3(s2) 158 sb t0,-4(s2) 159 160 /* Get index based on our processor number */ 161 GET_CUR_CPU(t0) 162 beq t0,0,1f /* should not happen */ 163 sub t0,t0,1 1641: 165 addi t2,t0,'1' /* cpu number */ 166 sub s2,t1 /* s2 points at rightmost char */ 167 168 169 /* write processor number and twiddly thingy */ 170 171loop: 172 173 li t3,'/' 174 sb t3,-1(s2) 175 176 bal delay 177 178 li t3,'-' 179 sb t3,-1(s2) 180 181 bal delay 182 183 li t3,'\\' 184 sb t3,-1(s2) 185 186 bal delay 187 188 li t3,'|' 189 sb t3,-1(s2) 190 191 bal delay 192 193 b loop 194 195 196END(cpu1proc) 197 198 199