i80321_mem.c revision 1.1.2.2
1 1.1.2.2 nathanw /* $NetBSD: i80321_mem.c,v 1.1.2.2 2002/04/01 07:39:48 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /* 4 1.1.2.2 nathanw * Copyright (c) 2002 Wasabi Systems, Inc. 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.1.2.2 nathanw * 9 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 10 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 11 1.1.2.2 nathanw * are met: 12 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 13 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 14 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 16 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 17 1.1.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 18 1.1.2.2 nathanw * must display the following acknowledgement: 19 1.1.2.2 nathanw * This product includes software developed for the NetBSD Project by 20 1.1.2.2 nathanw * Wasabi Systems, Inc. 21 1.1.2.2 nathanw * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.1.2.2 nathanw * or promote products derived from this software without specific prior 23 1.1.2.2 nathanw * written permission. 24 1.1.2.2 nathanw * 25 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.1.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.1.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.1.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.1.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.1.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.1.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.1.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.1.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.1.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.1.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 36 1.1.2.2 nathanw */ 37 1.1.2.2 nathanw 38 1.1.2.2 nathanw /* 39 1.1.2.2 nathanw * This file provides the mem_init() function for boards using the 40 1.1.2.2 nathanw * Intel i80321 I/O Processor. 41 1.1.2.2 nathanw */ 42 1.1.2.2 nathanw 43 1.1.2.2 nathanw #include <sys/types.h> 44 1.1.2.2 nathanw #include <lib/libsa/stand.h> 45 1.1.2.2 nathanw 46 1.1.2.2 nathanw #include <arm/xscale/i80321reg.h> 47 1.1.2.2 nathanw 48 1.1.2.2 nathanw #include "board.h" 49 1.1.2.2 nathanw 50 1.1.2.2 nathanw #define INL(x) *((__volatile uint32_t *) \ 51 1.1.2.2 nathanw (VERDE_PMMR_BASE + VERDE_MCU_BASE + (x))) 52 1.1.2.2 nathanw 53 1.1.2.2 nathanw void 54 1.1.2.2 nathanw mem_init(void) 55 1.1.2.2 nathanw { 56 1.1.2.2 nathanw uint32_t sdbr, sbr0, sbr1; 57 1.1.2.2 nathanw uint32_t bank0, bank1; 58 1.1.2.2 nathanw uint32_t start, size, heap; 59 1.1.2.2 nathanw 60 1.1.2.2 nathanw sdbr = INL(MCU_SDBR); 61 1.1.2.2 nathanw sbr0 = INL(MCU_SBR0); 62 1.1.2.2 nathanw sbr1 = INL(MCU_SBR1); 63 1.1.2.2 nathanw 64 1.1.2.2 nathanw start = sdbr; 65 1.1.2.2 nathanw 66 1.1.2.2 nathanw sdbr = (sdbr >> 25) & 0x1f; 67 1.1.2.2 nathanw 68 1.1.2.2 nathanw sbr0 &= 0x3f; 69 1.1.2.2 nathanw sbr1 &= 0x3f; 70 1.1.2.2 nathanw 71 1.1.2.2 nathanw bank0 = (sbr0 - sdbr) << 25; 72 1.1.2.2 nathanw bank1 = (sbr1 - sbr0) << 25; 73 1.1.2.2 nathanw 74 1.1.2.2 nathanw size = bank0 + bank1; 75 1.1.2.2 nathanw 76 1.1.2.2 nathanw heap = (start + size) - 0x30000; 77 1.1.2.2 nathanw 78 1.1.2.2 nathanw printf(">> RAM 0x%x - 0x%x, heap at 0x%x\n", 79 1.1.2.2 nathanw start, (start + size) - 1, heap); 80 1.1.2.2 nathanw setheap((void *)heap, (void *)(start + size)); 81 1.1.2.2 nathanw } 82
Indexes created Tue Oct 21 12:09:54 GMT 2025