arch/nios2/cpu/sysid.c

   1 /*
   2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
   3  * Scott McNutt <smcnutt@psyent.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9
  10 #if defined (CONFIG_SYS_NIOS_SYSID_BASE)
  11
  12 #include <command.h>
  13 #include <asm/io.h>
  14 #include <linux/time.h>
  15
  16 typedef volatile struct {
  17         unsigned        id;                     /* The system build id */
  18         unsigned        timestamp;              /* Timestamp */
  19 } nios_sysid_t;
  20
  21 void display_sysid (void)
  22 {
  23         nios_sysid_t *sysid = (nios_sysid_t *)CONFIG_SYS_NIOS_SYSID_BASE;
  24         struct tm t;
  25         char asc[32];
  26         time_t stamp;
  27
  28         stamp = readl (&sysid->timestamp);
  29         localtime_r (&stamp, &t);
  30         asctime_r (&t, asc);
  31         printf ("SYSID : %08lx, %s", readl (&sysid->id), asc);
  32
  33 }
  34
  35 int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  36 {
  37         display_sysid ();
  38         return (0);
  39 }
  40
  41 U_BOOT_CMD(
  42         sysid,  1,      1,      do_sysid,
  43         "display Nios-II system id",
  44         ""
  45 );
  46 #endif /* CONFIG_SYS_NIOS_SYSID_BASE */