arch/sh/kernel/cpu/sh2/probe.c

   1 /*
   2  * arch/sh/kernel/cpu/sh2/probe.c
   3  *
   4  * CPU Subtype Probing for SH-2.
   5  *
   6  * Copyright (C) 2002 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 #include <linux/init.h>
  13 #include <asm/processor.h>
  14 #include <asm/cache.h>
  15
  16 int __init detect_cpu_and_cache_system(void)
  17 {
  18 #if defined(CONFIG_CPU_SUBTYPE_SH7619)
  19         boot_cpu_data.type                      = CPU_SH7619;
  20         boot_cpu_data.dcache.ways               = 4;
  21         boot_cpu_data.dcache.way_incr   = (1<<12);
  22         boot_cpu_data.dcache.sets               = 256;
  23         boot_cpu_data.dcache.entry_shift        = 4;
  24         boot_cpu_data.dcache.linesz             = L1_CACHE_BYTES;
  25         boot_cpu_data.dcache.flags              = 0;
  26 #endif
  27         /*
  28          * SH-2 doesn't have separate caches
  29          */
  30         boot_cpu_data.dcache.flags |= SH_CACHE_COMBINED;
  31         boot_cpu_data.icache = boot_cpu_data.dcache;
  32
  33         return 0;
  34 }
  35