1 // SPDX-License-Identifier: GPL-2.0
3 * K3: Security functions
5 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
6 * Andrew F. Davis <afd@ti.com>
11 #include <linux/soc/ti/ti_sci_protocol.h>
15 void board_fit_image_post_process(void **p_image, size_t *p_size)
18 struct ti_sci_handle *ti_sci;
19 struct ti_sci_proc_ops *proc_ops;
24 /* Get handle to Device Management and Security Controller (SYSFW) */
25 ret = uclass_get_device_by_name(UCLASS_FIRMWARE, "dmsc", &dev);
27 printf("Failed to get handle to SYSFW (%d)\n", ret);
30 ti_sci = (struct ti_sci_handle *)(ti_sci_get_handle_from_sysfw(dev));
31 proc_ops = &ti_sci->ops.proc_ops;
33 image_addr = (uintptr_t)*p_image;
35 debug("Authenticating image at address 0x%016llx\n", image_addr);
37 /* Authenticate image */
38 ret = proc_ops->proc_auth_boot_image(ti_sci, &image_addr, &image_size);
40 printf("Authentication failed!\n");
45 * The image_size returned may be 0 when the authentication process has
46 * moved the image. When this happens no further processing on the
47 * image is needed or often even possible as it may have also been
48 * placed behind a firewall when moved.
53 * Output notification of successful authentication to re-assure the
54 * user that the secure code is being processed as expected. However
55 * suppress any such log output in case of building for SPL and booting
56 * via YMODEM. This is done to avoid disturbing the YMODEM serial
57 * protocol transactions.
59 if (!(IS_ENABLED(CONFIG_SPL_BUILD) &&
60 IS_ENABLED(CONFIG_SPL_YMODEM_SUPPORT) &&
61 spl_boot_device() == BOOT_DEVICE_UART))
62 printf("Authentication passed\n");