GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-k3/security.c

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * K3: Security functions
+ *
+ * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ *	Andrew F. Davis <afd@ti.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+#include <mach/spl.h>
+#include <spl.h>
+#include <asm/arch/sys_proto.h>
+
+void board_fit_image_post_process(void **p_image, size_t *p_size)
+{
+	struct ti_sci_handle *ti_sci = get_ti_sci_handle();
+	struct ti_sci_proc_ops *proc_ops = &ti_sci->ops.proc_ops;
+	u64 image_addr;
+	u32 image_size;
+	int ret;
+
+	image_addr = (uintptr_t)*p_image;
+
+	debug("Authenticating image at address 0x%016llx\n", image_addr);
+
+	/* Authenticate image */
+	ret = proc_ops->proc_auth_boot_image(ti_sci, &image_addr, &image_size);
+	if (ret) {
+		printf("Authentication failed!\n");
+		hang();
+	}
+
+	/*
+	 * The image_size returned may be 0 when the authentication process has
+	 * moved the image. When this happens no further processing on the
+	 * image is needed or often even possible as it may have also been
+	 * placed behind a firewall when moved.
+	 */
+	*p_size = image_size;
+
+	/*
+	 * Output notification of successful authentication to re-assure the
+	 * user that the secure code is being processed as expected. However
+	 * suppress any such log output in case of building for SPL and booting
+	 * via YMODEM. This is done to avoid disturbing the YMODEM serial
+	 * protocol transactions.
+	 */
+	if (!(IS_ENABLED(CONFIG_SPL_BUILD) &&
+	      IS_ENABLED(CONFIG_SPL_YMODEM_SUPPORT) &&
+	      spl_boot_device() == BOOT_DEVICE_UART))
+		printf("Authentication passed\n");
+}