vboot.c

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <bootmode.h>
#include <device/i2c_simple.h>
#include <soc/i2c.h>
#include <soc/reg_access.h>
#include <spi_flash.h>
#include <security/vboot/vboot_common.h>
#include <security/vboot/vbnv.h>
 
#include "reg_access.h"
#include "gen1.h"
#include "gen2.h"
 
int get_recovery_mode_switch(void)
{
        return 0;
}
 
int get_write_protect_state(void)
{
        /* Not write protected */
        return 0;
}
 
void verstage_mainboard_init(void)
{
        const struct reg_script *script;
 
        /* Crypto Shield I2C Addresses:
         *
         * 0x29: AT97S3204T - TPM 1.2
         * 0x50: ATAES132 - AES-128
         * 0x60: ATECC108 - Elliptical Curve
         * 0x64: ATSHA204 - SHA-256
         * 0x68: DS3231M - RTC
         */
 
        /* Determine the correct script for the board */
        if (CONFIG(GALILEO_GEN2))
                script = gen2_i2c_init;
        else
                /* Determine which I2C address is in use */
                script = (reg_legacy_gpio_read (R_QNC_GPIO_RGLVL_RESUME_WELL)
                        & GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)
                        ? gen1_i2c_0x20_init : gen1_i2c_0x21_init;
 
        /* Direct the I2C SDA and SCL signals to the Arduino connector */
        reg_script_run(script);
}
 
void __weak vboot_platform_prepare_reboot(void)
{
        const struct reg_script *script;
 
        /* Crypto Shield I2C Addresses:
         *
         * 0x29: AT97S3204T - TPM 1.2
         * 0x50: ATAES132 - AES-128
         * 0x60: ATECC108 - Elliptical Curve
         * 0x64: ATSHA204 - SHA-256
         * 0x68: DS3231M - RTC
         */
 
        /* Determine the correct script for the board */
        if (CONFIG(GALILEO_GEN2))
                script = gen2_tpm_reset;
        else
                /* Determine which I2C address is in use */
                script = (reg_legacy_gpio_read (R_QNC_GPIO_RGLVL_RESUME_WELL)
                        & GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)
                        ? gen1_tpm_reset_0x20 : gen1_tpm_reset_0x21;
 
        /* Reset the TPM */
        reg_script_run(script);
}
 
int vbnv_cmos_failed(void)
{
        /* Indicate no failure until RTC failure bits are supported. */
        return 0;
}