arch/arm/cpu/armv7/rmobile/cpu_info.c

   1 /*
   2  * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
   3  * (C) Copyright 2012 Renesas Solutions Corp.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <common.h>
   8 #include <asm/io.h>
   9
  10 #ifdef CONFIG_ARCH_CPU_INIT
  11 int arch_cpu_init(void)
  12 {
  13         icache_enable();
  14         return 0;
  15 }
  16 #endif
  17
  18 #ifndef CONFIG_SYS_DCACHE_OFF
  19 void enable_caches(void)
  20 {
  21         dcache_enable();
  22 }
  23 #endif
  24
  25 #ifdef CONFIG_DISPLAY_CPUINFO
  26 static u32 __rmobile_get_cpu_type(void)
  27 {
  28         return 0x0;
  29 }
  30 u32 rmobile_get_cpu_type(void)
  31                 __attribute__((weak, alias("__rmobile_get_cpu_type")));
  32
  33 static u32 __rmobile_get_cpu_rev_integer(void)
  34 {
  35         return 0;
  36 }
  37 u32 rmobile_get_cpu_rev_integer(void)
  38                 __attribute__((weak, alias("__rmobile_get_cpu_rev_integer")));
  39
  40 static u32 __rmobile_get_cpu_rev_fraction(void)
  41 {
  42         return 0;
  43 }
  44 u32 rmobile_get_cpu_rev_fraction(void)
  45                 __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
  46
  47 int print_cpuinfo(void)
  48 {
  49         switch (rmobile_get_cpu_type()) {
  50         case 0x37:
  51                 printf("CPU: Renesas Electronics SH73A0 rev %d.%d\n",
  52                        rmobile_get_cpu_rev_integer(),
  53                        rmobile_get_cpu_rev_fraction());
  54                 break;
  55         case 0x40:
  56                 printf("CPU: Renesas Electronics R8A7740 rev %d.%d\n",
  57                        rmobile_get_cpu_rev_integer(),
  58                        rmobile_get_cpu_rev_fraction());
  59                 break;
  60
  61         case 0x45:
  62                 printf("CPU: Renesas Electronics R8A7790 rev %d\n",
  63                        rmobile_get_cpu_rev_integer());
  64                 break;
  65
  66         case 0x47:
  67                 printf("CPU: Renesas Electronics R8A7791 rev %d\n",
  68                         rmobile_get_cpu_rev_integer());
  69                 break;
  70
  71         default:
  72                 printf("CPU: Renesas Electronics CPU rev %d.%d\n",
  73                        rmobile_get_cpu_rev_integer(),
  74                        rmobile_get_cpu_rev_fraction());
  75                 break;
  76         }
  77         return 0;
  78 }
  79 #endif /* CONFIG_DISPLAY_CPUINFO */