arch/sh/kernel/cpu/sh2a/probe.c

   1 /*
   2  * arch/sh/kernel/cpu/sh2a/probe.c
   3  *
   4  * CPU Subtype Probing for SH-2A.
   5  *
   6  * Copyright (C) 2004, 2005 Paul Mundt
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file "COPYING" in the main directory of this archive
  10  * for more details.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <asm/processor.h>
  15 #include <asm/cache.h>
  16
  17 int __init detect_cpu_and_cache_system(void)
  18 {
  19         /* Just SH7206 for now .. */
  20         current_cpu_data.type                   = CPU_SH7206;
  21
  22         current_cpu_data.dcache.ways            = 4;
  23         current_cpu_data.dcache.way_incr        = (1 << 11);
  24         current_cpu_data.dcache.sets            = 128;
  25         current_cpu_data.dcache.entry_shift     = 4;
  26         current_cpu_data.dcache.linesz          = L1_CACHE_BYTES;
  27         current_cpu_data.dcache.flags           = 0;
  28
  29         /*
  30          * The icache is the same as the dcache as far as this setup is
  31          * concerned. The only real difference in hardware is that the icache
  32          * lacks the U bit that the dcache has, none of this has any bearing
  33          * on the cache info.
  34          */
  35         current_cpu_data.icache         = current_cpu_data.dcache;
  36
  37         return 0;
  38 }
  39