arch/sparc/cpu/leon3/cpu.c

   1 /* CPU specific code for the LEON3 CPU
   2  *
   3  * (C) Copyright 2007
   4  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <watchdog.h>
  11 #include <command.h>
  12 #include <netdev.h>
  13
  14 #include <asm/io.h>
  15 #include <asm/processor.h>
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 extern void _reset_reloc(void);
  20
  21 int checkcpu(void)
  22 {
  23         /* check LEON version here */
  24         printf("CPU: LEON3\n");
  25         return 0;
  26 }
  27
  28 /* ------------------------------------------------------------------------- */
  29
  30 void cpu_reset(void)
  31 {
  32         /* Interrupts off */
  33         disable_interrupts();
  34
  35         /* jump to restart in flash */
  36         _reset_reloc();
  37 }
  38
  39 int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
  40 {
  41         cpu_reset();
  42
  43         return 1;
  44
  45 }
  46
  47 u64 flash_read64(void *addr)
  48 {
  49         return __raw_readq(addr);
  50 }
  51
  52 /* ------------------------------------------------------------------------- */
  53
  54 #ifdef CONFIG_GRETH
  55 int cpu_eth_init(bd_t *bis)
  56 {
  57         return greth_initialize(bis);
  58 }
  59 #endif