src/arch/x86/postcar.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/romstage.h>
   4 #include <cbmem.h>
   5 #include <console/console.h>
   6 #include <cpu/x86/mtrr.h>
   7 #include <main_decl.h>
   8 #include <program_loading.h>
   9 #include <timestamp.h>
  10
  11 /*
  12  * Systems without a native coreboot cache-as-ram teardown may implement
  13  * this to use an alternate method.
  14  */
  15 __weak void late_car_teardown(void) { /* do nothing */ }
  16
  17 void main(void)
  18 {
  19         late_car_teardown();
  20
  21         console_init();
  22
  23         /*
  24          * CBMEM needs to be recovered because timestamps rely on
  25          * the cbmem infrastructure being around. Explicitly recover it.
  26          *
  27          * On some platforms CBMEM needs to be initialized earlier.
  28          * Use cbmem_online() to avoid init CBMEM twice.
  29          */
  30         if (!cbmem_online())
  31                 cbmem_initialize();
  32
  33         timestamp_add_now(TS_POSTCAR_START);
  34
  35         display_mtrrs();
  36
  37         /* Load and run ramstage. */
  38         run_ramstage();
  39 }