bootblock.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootblock_common.h>
#include <console/console.h>
#include <intelblocks/fast_spi.h>
#include <intelblocks/systemagent.h>
#include <intelblocks/tco.h>
#include <intelblocks/uart.h>
#include <intelpch/smbus.h>
#include <soc/bootblock.h>
 
asmlinkage void bootblock_c_entry(uint64_t base_timestamp)
{
        /* Call lib/bootblock.c main */
        bootblock_main_with_basetime(base_timestamp);
}
 
void bootblock_soc_early_init(void)
{
        bootblock_systemagent_early_init();
        bootblock_pch_early_init();
        fast_spi_cache_bios_region();
        pch_early_iorange_init();
        if (CONFIG(INTEL_LPSS_UART_FOR_CONSOLE))
                uart_bootblock_init();
}
 
void bootblock_soc_init(void)
{
        report_platform_info();
        bootblock_pch_init();
 
        /* Programming TCO_BASE_ADDRESS and TCO Timer Halt */
        tco_configure();
        if (CONFIG(SOC_INTEL_ELKHARTLAKE_TCO_NO_REBOOT_EN)) {
                uint16_t reg = tco_read_reg(TCO1_CNT);
                /* NO_REBOOT is enabled via bit 0 in TCO1_CNT. */
                reg |= 0x01;
                tco_write_reg(TCO1_CNT, reg);
                printk(BIOS_DEBUG, "TCO: Disable reset on second expiration.\n");
        }
}