arch/arm/mach-rockchip/cpu.c

   1 #include <linux/kernel.h>
   2 #include <linux/cpu.h>
   3 #include <linux/rockchip/cpu.h>
   4
   5 unsigned long rockchip_soc_id;
   6 EXPORT_SYMBOL(rockchip_soc_id);
   7
   8 static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf)
   9 {
  10         const char *type;
  11
  12         if (cpu_is_rk3288())
  13                 type = "rk3288";
  14         else if (cpu_is_rk319x())
  15                 type = "rk319x";
  16         else if (cpu_is_rk3188())
  17                 type = "rk3188";
  18         else if (cpu_is_rk3066b())
  19                 type = "rk3066b";
  20         else if (cpu_is_rk3026())
  21                 type = "rk3026";
  22         else if (cpu_is_rk30xx())
  23                 type = "rk30xx";
  24         else if (cpu_is_rk2928())
  25                 type = "rk2928";
  26         else if (cpu_is_rk312x())
  27                 type = "rk312x";
  28         else
  29                 type = "";
  30
  31         if (rockchip_get_cpu_version())
  32                 return sprintf(buf, "%sv%lu\n", type,
  33                                rockchip_get_cpu_version());
  34
  35         return sprintf(buf, "%s\n", type);
  36 }
  37
  38 static struct device_attribute type_attr = __ATTR_RO(type);
  39
  40 static ssize_t soc_show(struct device *dev, struct device_attribute *attr, char *buf)
  41 {
  42         const char *soc;
  43
  44         if (soc_is_rk3288())
  45                 soc = "rk3288";
  46         else if (soc_is_rk3190())
  47                 soc = "rk3190";
  48         else if (soc_is_rk3188plus())
  49                 soc = "rk3188+";
  50         else if (soc_is_rk3188())
  51                 soc = "rk3188";
  52         else if (soc_is_rk3168())
  53                 soc = "rk3168";
  54         else if (soc_is_rk3028())
  55                 soc = "rk3028";
  56         else if (soc_is_rk3066b())
  57                 soc = "rk3066b";
  58         else if (soc_is_rk3028a())
  59                 soc = "rk3028a";
  60         else if (soc_is_rk3026())
  61                 soc = "rk3026";
  62         else if (soc_is_rk2928g())
  63                 soc = "rk2928g";
  64         else if (soc_is_rk2928l())
  65                 soc = "rk2928l";
  66         else if (soc_is_rk2926())
  67                 soc = "rk2926";
  68         else if (soc_is_rk3066())
  69                 soc = "rk3066";
  70         else if (soc_is_rk3068())
  71                 soc = "rk3068";
  72         else if (soc_is_rk3000())
  73                 soc = "rk3000";
  74         else if (soc_is_rk3126() || soc_is_rk3126b())
  75                 soc = "rk3126";
  76         else if (soc_is_rk3128())
  77                 soc = "rk3128";
  78         else
  79                 soc = "";
  80
  81         return sprintf(buf, "%s\n", soc);
  82 }
  83
  84 static struct device_attribute soc_attr = __ATTR_RO(soc);
  85
  86 static int __init rockchip_cpu_lateinit(void)
  87 {
  88         int err;
  89
  90         err = device_create_file(cpu_subsys.dev_root, &type_attr);
  91         err = device_create_file(cpu_subsys.dev_root, &soc_attr);
  92
  93         return err;
  94 }
  95 late_initcall(rockchip_cpu_lateinit);