49316cbf0a
They tend to get not updated when files are moved around or copied and lack any obvious use. While at it zap some only too obvious comments and as per Shinya's suggestion, add a copyright header to extable.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* common tx4927 memory interface
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*
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* Author: MontaVista Software, Inc.
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* source@mvista.com
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*
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* Copyright 2001-2002 MontaVista Software Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/io.h>
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#include <asm/txx9/tx4927.h>
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static unsigned int __init tx4927_process_sdccr(u64 __iomem *addr)
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{
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u64 val;
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unsigned int sdccr_ce;
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unsigned int sdccr_bs;
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unsigned int sdccr_rs;
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unsigned int sdccr_cs;
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unsigned int sdccr_mw;
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unsigned int bs = 0;
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unsigned int rs = 0;
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unsigned int cs = 0;
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unsigned int mw = 0;
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val = __raw_readq(addr);
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/* MVMCP -- need #defs for these bits masks */
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sdccr_ce = ((val & (1 << 10)) >> 10);
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sdccr_bs = ((val & (1 << 8)) >> 8);
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sdccr_rs = ((val & (3 << 5)) >> 5);
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sdccr_cs = ((val & (7 << 2)) >> 2);
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sdccr_mw = ((val & (1 << 0)) >> 0);
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if (sdccr_ce) {
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bs = 2 << sdccr_bs;
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rs = 2048 << sdccr_rs;
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cs = 256 << sdccr_cs;
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mw = 8 >> sdccr_mw;
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}
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return rs * cs * mw * bs;
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}
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unsigned int __init tx4927_get_mem_size(void)
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{
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unsigned int total = 0;
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int i;
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for (i = 0; i < ARRAY_SIZE(tx4927_sdramcptr->cr); i++)
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total += tx4927_process_sdccr(&tx4927_sdramcptr->cr[i]);
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return total;
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}
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