--- /dev/null
+/*
+ * 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",
+ ""
+ );
--- /dev/null
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+*/
+
+#ifndef __SECURE_MX6Q_H__
+#define __SECURE_MX6Q_H__
+
+#include <linux/types.h>
+
+/* -------- start of HAB API updates ------------*/
+/* The following are taken from HAB4 SIS */
+
+/* Status definitions */
+enum hab_status {
+ HAB_STS_ANY = 0x00,
+ HAB_FAILURE = 0x33,
+ HAB_WARNING = 0x69,
+ HAB_SUCCESS = 0xf0
+};
+
+/* Security Configuration definitions */
+enum hab_config {
+ HAB_CFG_RETURN = 0x33, /**< Field Return IC */
+ HAB_CFG_OPEN = 0xf0, /**< Non-secure IC */
+ HAB_CFG_CLOSED = 0xcc /**< Secure IC */
+};
+
+/* State definitions */
+enum hab_state {
+ HAB_STATE_INITIAL = 0x33, /**< Initialising state (transitory) */
+ HAB_STATE_CHECK = 0x55, /**< Check state (non-secure) */
+ HAB_STATE_NONSECURE = 0x66, /**< Non-secure state */
+ HAB_STATE_TRUSTED = 0x99, /**< Trusted state */
+ HAB_STATE_SECURE = 0xaa, /**< Secure state */
+ HAB_STATE_FAIL_SOFT = 0xcc, /**< Soft fail state */
+ HAB_STATE_FAIL_HARD = 0xff, /**< Hard fail state (terminal) */
+ HAB_STATE_NONE = 0xf0, /**< No security state machine */
+ HAB_STATE_MAX
+};
+
+/*Function prototype description*/
+typedef enum hab_status hab_rvt_report_event_t(enum hab_status, uint32_t,
+ uint8_t* , size_t*);
+typedef enum hab_status hab_rvt_report_status_t(enum hab_config *,
+ enum hab_state *);
+typedef enum hab_status hab_loader_callback_f_t(void**, size_t*, const void*);
+typedef enum hab_status hab_rvt_entry_t(void);
+typedef enum hab_status hab_rvt_exit_t(void);
+typedef void *hab_rvt_authenticate_image_t(uint8_t, ptrdiff_t,
+ void **, size_t *, hab_loader_callback_f_t);
+typedef void hapi_clock_init_t(void);
+
+#define HAB_RVT_REPORT_EVENT (*(uint32_t *)0x000000B4)
+#define HAB_RVT_REPORT_STATUS (*(uint32_t *)0x000000B8)
+#define HAB_RVT_AUTHENTICATE_IMAGE (*(uint32_t *)0x000000A4)
+#define HAB_RVT_ENTRY (*(uint32_t *)0x00000098)
+#define HAB_RVT_EXIT (*(uint32_t *)0x0000009C)
+#define HAB_RVT_CLOCK_INIT ((hapi_clock_init_t *)0x0000024D)
+
+#define HAB_CID_ROM 0 /**< ROM Caller ID */
+#define HAB_CID_UBOOT 1 /**< UBOOT Caller ID*/
+/* ----------- end of HAB API updates ------------*/
+
+#endif
projects / u-boot / commitdiff