src/soc/intel/elkhartlake/bootblock/bootblock.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootblock_common.h>
   4 #include <console/console.h>
   5 #include <intelblocks/fast_spi.h>
   6 #include <intelblocks/systemagent.h>
   7 #include <intelblocks/tco.h>
   8 #include <intelblocks/uart.h>
   9 #include <intelpch/smbus.h>
  10 #include <soc/bootblock.h>
  11
  12 asmlinkage void bootblock_c_entry(uint64_t base_timestamp)
  13 {
  14         /* Call lib/bootblock.c main */
  15         bootblock_main_with_basetime(base_timestamp);
  16 }
  17
  18 void bootblock_soc_early_init(void)
  19 {
  20         bootblock_systemagent_early_init();
  21         bootblock_pch_early_init();
  22         fast_spi_cache_bios_region();
  23         pch_early_iorange_init();
  24         if (CONFIG(INTEL_LPSS_UART_FOR_CONSOLE))
  25                 uart_bootblock_init();
  26 }
  27
  28 void bootblock_soc_init(void)
  29 {
  30         report_platform_info();
  31         bootblock_pch_init();
  32
  33         /* Programming TCO_BASE_ADDRESS and TCO Timer Halt */
  34         tco_configure();
  35         if (CONFIG(SOC_INTEL_ELKHARTLAKE_TCO_NO_REBOOT_EN)) {
  36                 uint16_t reg = tco_read_reg(TCO1_CNT);
  37                 /* NO_REBOOT is enabled via bit 0 in TCO1_CNT. */
  38                 reg |= 0x01;
  39                 tco_write_reg(TCO1_CNT, reg);
  40                 printk(BIOS_DEBUG, "TCO: Disable reset on second expiration.\n");
  41         }
  42 }