arch/sh/cpu/sh4/cpu.c

   1 /*
   2  * (C) Copyright 2007
   3  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <netdev.h>
  11 #include <asm/processor.h>
  12 #include <asm/cache.h>
  13
  14 int checkcpu(void)
  15 {
  16 #ifdef CONFIG_SH4A
  17         puts("CPU: SH-4A\n");
  18 #else
  19         puts("CPU: SH4\n");
  20 #endif
  21         return 0;
  22 }
  23
  24 int cpu_init (void)
  25 {
  26         return 0;
  27 }
  28
  29 int cleanup_before_linux (void)
  30 {
  31         disable_interrupts();
  32         return 0;
  33 }
  34
  35 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  36 {
  37         disable_interrupts();
  38         reset_cpu (0);
  39         return 0;
  40 }
  41
  42 void flush_cache (unsigned long addr, unsigned long size)
  43 {
  44         dcache_invalid_range( addr , addr + size );
  45 }
  46
  47 void icache_enable (void)
  48 {
  49         cache_control(0);
  50 }
  51
  52 void icache_disable (void)
  53 {
  54         cache_control(1);
  55 }
  56
  57 int icache_status (void)
  58 {
  59         return 0;
  60 }
  61
  62 void dcache_enable (void)
  63 {
  64 }
  65
  66 void dcache_disable (void)
  67 {
  68 }
  69
  70 int dcache_status (void)
  71 {
  72         return 0;
  73 }
  74
  75 int cpu_eth_init(bd_t *bis)
  76 {
  77 #ifdef CONFIG_SH_ETHER
  78         sh_eth_initialize(bis);
  79 #endif
  80         return 0;
  81 }