af3dc4a7ca
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
/* $NetBSD: ixp425_mem.c,v 1.2 2005/12/11 12:16:51 christos Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <arm/xscale/ixp425/ixp425reg.h>
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#include <arm/xscale/ixp425/ixp425var.h>
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static uint32_t sdram_64bit[] = {
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0x00800000, /* 8M: One 2M x 32 chip */
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0x01000000, /* 16M: Two 2M x 32 chips */
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0x01000000, /* 16M: Two 4M x 16 chips */
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0x02000000, /* 32M: Four 4M x 32 chips */
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0, 0, 0, 0
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};
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static uint32_t sdram_other[] = {
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0x02000000, /* 32M: Two 8M x 16 chips */
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0x04000000, /* 64M: Four 8M x 16 chips */
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0x04000000, /* 64M: Two 16M x 16 chips */
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0x08000000, /* 128M: Four 16M x 16 chips */
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0x08000000, /* 128M: Two 32M x 16 chips */
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0x10000000, /* 256M: Four 32M x 16 chips */
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0, 0
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};
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uint32_t
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ixp425_sdram_size(void)
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{
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#define MCU_REG_READ(x) (*(volatile uint32_t *)(IXP425_MCU_VBASE + (x)))
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uint32_t size, sdr_config;
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sdr_config = MCU_REG_READ(MCU_SDR_CONFIG);
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if (sdr_config & MCU_SDR_CONFIG_64MBIT)
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size = sdram_64bit[MCU_SDR_CONFIG_MCONF(sdr_config)];
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else
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size = sdram_other[MCU_SDR_CONFIG_MCONF(sdr_config)];
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if (size == 0) {
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printf("** SDR_CONFIG returns unknown value, using 32M\n");
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size = 32 * 1024 * 1024;
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}
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return (size);
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#undef MCU_REG_READ
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}
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uint32_t
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ixp435_ddram_size(void)
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{
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#define MCU_REG_READ(x) (*(volatile uint32_t *)(IXP425_MCU_VBASE + (x)))
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uint32_t sbr0;
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/*
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* Table 198, page 516 shows DDR-I/II SDRAM bank sizes
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* for SBR0 and SBR1. The manual states both banks must
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* be programmed to be the same size. We just assume
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* it's done right and calculate 2x for the memory size.
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*/
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sbr0 = MCU_REG_READ(MCU_DDR_SBR0);
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return 2 * 16*(sbr0 & 0x7f) * 1024 * 1024;
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#undef MCU_REG_READ
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}
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