src/soc/amd/genoa_poc/reset.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/io.h>
   4 #include <cf9_reset.h>
   5 #include <reset.h>
   6 #include <soc/southbridge.h>
   7 #include <amdblocks/acpimmio.h>
   8 #include <amdblocks/reset.h>
   9
  10 void do_cold_reset(void)
  11 {
  12         /* De-assert and then assert all PwrGood signals on CF9 reset. */
  13         pm_write16(PWR_RESET_CFG, pm_read16(PWR_RESET_CFG) |
  14                 TOGGLE_ALL_PWR_GOOD);
  15         outb(RST_CPU | SYS_RST, RST_CNT);
  16 }
  17
  18 void do_warm_reset(void)
  19 {
  20         /* Warm resets are not supported and must be executed as cold */
  21         do_cold_reset();
  22 }
  23
  24 void do_board_reset(void)
  25 {
  26         do_cold_reset();
  27 }