i80321_mem.c revision 1.2.6.2
1 1.2.6.2 jdolecek /* $NetBSD: i80321_mem.c,v 1.2.6.2 2002/06/23 17:35:44 jdolecek Exp $ */ 2 1.2.6.2 jdolecek 3 1.2.6.2 jdolecek /* 4 1.2.6.2 jdolecek * Copyright (c) 2002 Wasabi Systems, Inc. 5 1.2.6.2 jdolecek * All rights reserved. 6 1.2.6.2 jdolecek * 7 1.2.6.2 jdolecek * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.2.6.2 jdolecek * 9 1.2.6.2 jdolecek * Redistribution and use in source and binary forms, with or without 10 1.2.6.2 jdolecek * modification, are permitted provided that the following conditions 11 1.2.6.2 jdolecek * are met: 12 1.2.6.2 jdolecek * 1. Redistributions of source code must retain the above copyright 13 1.2.6.2 jdolecek * notice, this list of conditions and the following disclaimer. 14 1.2.6.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.6.2 jdolecek * notice, this list of conditions and the following disclaimer in the 16 1.2.6.2 jdolecek * documentation and/or other materials provided with the distribution. 17 1.2.6.2 jdolecek * 3. All advertising materials mentioning features or use of this software 18 1.2.6.2 jdolecek * must display the following acknowledgement: 19 1.2.6.2 jdolecek * This product includes software developed for the NetBSD Project by 20 1.2.6.2 jdolecek * Wasabi Systems, Inc. 21 1.2.6.2 jdolecek * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.2.6.2 jdolecek * or promote products derived from this software without specific prior 23 1.2.6.2 jdolecek * written permission. 24 1.2.6.2 jdolecek * 25 1.2.6.2 jdolecek * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.2.6.2 jdolecek * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2.6.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2.6.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.2.6.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2.6.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2.6.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2.6.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2.6.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2.6.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2.6.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 36 1.2.6.2 jdolecek */ 37 1.2.6.2 jdolecek 38 1.2.6.2 jdolecek /* 39 1.2.6.2 jdolecek * This file provides the mem_init() function for boards using the 40 1.2.6.2 jdolecek * Intel i80321 I/O Processor. 41 1.2.6.2 jdolecek */ 42 1.2.6.2 jdolecek 43 1.2.6.2 jdolecek #include <sys/types.h> 44 1.2.6.2 jdolecek #include <lib/libsa/stand.h> 45 1.2.6.2 jdolecek 46 1.2.6.2 jdolecek #include <arm/xscale/i80321reg.h> 47 1.2.6.2 jdolecek 48 1.2.6.2 jdolecek #include "board.h" 49 1.2.6.2 jdolecek 50 1.2.6.2 jdolecek #define INL(x) *((__volatile uint32_t *) \ 51 1.2.6.2 jdolecek (VERDE_PMMR_BASE + VERDE_MCU_BASE + (x))) 52 1.2.6.2 jdolecek 53 1.2.6.2 jdolecek void 54 1.2.6.2 jdolecek mem_init(void) 55 1.2.6.2 jdolecek { 56 1.2.6.2 jdolecek uint32_t sdbr, sbr0, sbr1; 57 1.2.6.2 jdolecek uint32_t bank0, bank1; 58 1.2.6.2 jdolecek uint32_t start, size, heap; 59 1.2.6.2 jdolecek 60 1.2.6.2 jdolecek sdbr = INL(MCU_SDBR); 61 1.2.6.2 jdolecek sbr0 = INL(MCU_SBR0); 62 1.2.6.2 jdolecek sbr1 = INL(MCU_SBR1); 63 1.2.6.2 jdolecek 64 1.2.6.2 jdolecek start = sdbr; 65 1.2.6.2 jdolecek 66 1.2.6.2 jdolecek sdbr = (sdbr >> 25) & 0x1f; 67 1.2.6.2 jdolecek 68 1.2.6.2 jdolecek sbr0 &= 0x3f; 69 1.2.6.2 jdolecek sbr1 &= 0x3f; 70 1.2.6.2 jdolecek 71 1.2.6.2 jdolecek bank0 = (sbr0 - sdbr) << 25; 72 1.2.6.2 jdolecek bank1 = (sbr1 - sbr0) << 25; 73 1.2.6.2 jdolecek 74 1.2.6.2 jdolecek size = bank0 + bank1; 75 1.2.6.2 jdolecek 76 1.2.6.2 jdolecek heap = (start + size) - HEAP_SIZE; 77 1.2.6.2 jdolecek 78 1.2.6.2 jdolecek printf(">> RAM 0x%x - 0x%x, heap at 0x%x\n", 79 1.2.6.2 jdolecek start, (start + size) - 1, heap); 80 1.2.6.2 jdolecek setheap((void *)heap, (void *)(start + size - 1)); 81 1.2.6.2 jdolecek } 82
Indexes created Mon Oct 20 20:10:13 GMT 2025