src/soc/intel/cannonlake/reset.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <cf9_reset.h>
  16 #include <console/console.h>
  17 #include <intelblocks/cse.h>
  18 #include <intelblocks/pmclib.h>
  19 #include <fsp/util.h>
  20 #include <soc/intel/common/reset.h>
  21 #include <soc/pci_devs.h>
  22
  23 void do_global_reset(void)
  24 {
  25         /* Ask CSE to do the global reset */
  26         if (cse_request_global_reset(GLOBAL_RESET))
  27                 return;
  28
  29         /* global reset if CSE fail to reset */
  30         pmc_global_reset_enable(1);
  31         do_full_reset();
  32 }
  33
  34 void chipset_handle_reset(uint32_t status)
  35 {
  36         switch (status) {
  37         case FSP_STATUS_RESET_REQUIRED_3: /* Global Reset */
  38                 printk(BIOS_DEBUG, "GLOBAL RESET!!\n");
  39                 global_reset();
  40                 break;
  41         default:
  42                 printk(BIOS_ERR, "unhandled reset type %x\n", status);
  43                 die("unknown reset type");
  44                 break;
  45         }
  46 }