cvmx-ebt3000.c revision 232812
1/***********************license start*************** 2 * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights 3 * reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 18 * * Neither the name of Cavium Inc. nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written 21 * permission. 22 23 * This Software, including technical data, may be subject to U.S. export control 24 * laws, including the U.S. Export Administration Act and its associated 25 * regulations, and may be subject to export or import regulations in other 26 * countries. 27 28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38 ***********************license end**************************************/ 39 40 41 42 43 44 45 46/** 47 * @file 48 * 49 * Interface to the EBT3000 specific devices 50 * 51 * <hr>$Revision: 70030 $<hr> 52 * 53 */ 54 55#include "cvmx-config.h" 56#include "cvmx.h" 57#include "cvmx-sysinfo.h" 58 59 60void ebt3000_char_write(int char_position, char val) 61{ 62 /* Note: phys_to_ptr won't work here, as we are most likely going to access the boot bus. */ 63 void *led_base = CASTPTR(void, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, cvmx_sysinfo_get()->led_display_base_addr)); 64 if (!led_base) 65 return; 66 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 && cvmx_sysinfo_get()->board_rev_major == 1) 67 { 68 /* Rev 1 board */ 69 char *ptr = (char *)(led_base + 4); 70 char_position &= 0x3; /* only 4 chars */ 71 ptr[3 - char_position] = val; 72 } 73 else 74 { 75 /* rev 2 or later board */ 76 char *ptr = (char *)(led_base); 77 char_position &= 0x7; /* only 8 chars */ 78 ptr[char_position] = val; 79 } 80} 81 82void ebt3000_str_write(const char *str) 83{ 84 /* Note: phys_to_ptr won't work here, as we are most likely going to access the boot bus. */ 85 void *led_base; 86 if (!cvmx_sysinfo_get()->led_display_base_addr) 87 return; 88 led_base = CASTPTR(void, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, cvmx_sysinfo_get()->led_display_base_addr)); 89 if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 && cvmx_sysinfo_get()->board_rev_major == 1) 90 { 91 char *ptr = (char *)(led_base + 4); 92 int i; 93 for (i=0; i<4; i++) 94 { 95 if (*str) 96 ptr[3 - i] = *str++; 97 else 98 ptr[3 - i] = ' '; 99 } 100 } 101 else 102 { 103 /* rev 2 board */ 104 char *ptr = (char *)(led_base); 105 int i; 106 for (i=0; i<8; i++) 107 { 108 if (*str) 109 ptr[i] = *str++; 110 else 111 ptr[i] = ' '; 112 } 113 } 114} 115