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/*
* Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/hab.h>
/* -------- start of HAB API updates ------------*/
#define hab_rvt_report_event ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT)
#define hab_rvt_report_status ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS)
#define hab_rvt_authenticate_image \
((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE)
#define hab_rvt_entry ((hab_rvt_entry_t *)HAB_RVT_ENTRY)
#define hab_rvt_exit ((hab_rvt_exit_t *)HAB_RVT_EXIT)
#define hab_rvt_clock_init HAB_RVT_CLOCK_INIT
bool is_hab_enabled(void)
{
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
struct fuse_bank *bank = &ocotp->bank[0];
struct fuse_bank0_regs *fuse =
(struct fuse_bank0_regs *)bank->fuse_regs;
uint32_t reg = readl(&fuse->cfg5);
return (reg & 0x2) == 0x2;
}
void display_event(uint8_t *event_data, size_t bytes)
{
uint32_t i;
if (!(event_data && bytes > 0))
return;
for (i = 0; i < bytes; i++) {
if (i == 0)
printf("\t0x%02x", event_data[i]);
else if ((i % 8) == 0)
printf("\n\t0x%02x", event_data[i]);
else
printf(" 0x%02x", event_data[i]);
}
}
int get_hab_status(void)
{
uint32_t index = 0; /* Loop index */
uint8_t event_data[128]; /* Event data buffer */
size_t bytes = sizeof(event_data); /* Event size in bytes */
enum hab_config config = 0;
enum hab_state state = 0;
if (is_hab_enabled())
puts("\nSecure boot enabled\n");
else
puts("\nSecure boot disabled\n");
/* Check HAB status */
if (hab_rvt_report_status(&config, &state) != HAB_SUCCESS) {
printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
config, state);
/* Display HAB Error events */
while (hab_rvt_report_event(HAB_FAILURE, index, event_data,
&bytes) == HAB_SUCCESS) {
puts("\n");
printf("--------- HAB Event %d -----------------\n",
index + 1);
puts("event data:\n");
display_event(event_data, bytes);
puts("\n");
bytes = sizeof(event_data);
index++;
}
}
/* Display message if no HAB events are found */
else {
printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
config, state);
puts("No HAB Events Found!\n\n");
}
return 0;
}
int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if ((argc != 1)) {
cmd_usage(cmdtp);
return 1;
}
get_hab_status();
return 0;
}
U_BOOT_CMD(
hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
"display HAB status",
""
);
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