2 * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/hab.h>
11 /* -------- start of HAB API updates ------------*/
12 #define hab_rvt_report_event ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT)
13 #define hab_rvt_report_status ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS)
14 #define hab_rvt_authenticate_image \
15 ((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE)
16 #define hab_rvt_entry ((hab_rvt_entry_t *)HAB_RVT_ENTRY)
17 #define hab_rvt_exit ((hab_rvt_exit_t *)HAB_RVT_EXIT)
18 #define hab_rvt_clock_init HAB_RVT_CLOCK_INIT
20 bool is_hab_enabled(void)
22 struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
23 struct fuse_bank *bank = &ocotp->bank[0];
24 struct fuse_bank0_regs *fuse =
25 (struct fuse_bank0_regs *)bank->fuse_regs;
26 uint32_t reg = readl(&fuse->cfg5);
28 return (reg & 0x2) == 0x2;
31 void display_event(uint8_t *event_data, size_t bytes)
35 if (!(event_data && bytes > 0))
38 for (i = 0; i < bytes; i++) {
40 printf("\t0x%02x", event_data[i]);
41 else if ((i % 8) == 0)
42 printf("\n\t0x%02x", event_data[i]);
44 printf(" 0x%02x", event_data[i]);
48 int get_hab_status(void)
50 uint32_t index = 0; /* Loop index */
51 uint8_t event_data[128]; /* Event data buffer */
52 size_t bytes = sizeof(event_data); /* Event size in bytes */
53 enum hab_config config = 0;
54 enum hab_state state = 0;
57 puts("\nSecure boot enabled\n");
59 puts("\nSecure boot disabled\n");
61 /* Check HAB status */
62 if (hab_rvt_report_status(&config, &state) != HAB_SUCCESS) {
63 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
66 /* Display HAB Error events */
67 while (hab_rvt_report_event(HAB_FAILURE, index, event_data,
68 &bytes) == HAB_SUCCESS) {
70 printf("--------- HAB Event %d -----------------\n",
72 puts("event data:\n");
73 display_event(event_data, bytes);
75 bytes = sizeof(event_data);
79 /* Display message if no HAB events are found */
81 printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
83 puts("No HAB Events Found!\n\n");
88 int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
101 hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
102 "display HAB status",