1 files changed, 142 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-keystone/mon.c b/roms/u-boot/arch/arm/mach-keystone/mon.c
new file mode 100644
index 000000000..58995d73a
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-keystone/mon.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * K2x: Secure commands file
+ *
+ * Copyright (C) 2012-2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+#include <hang.h>
+#include <image.h>
+#include <asm/unaligned.h>
+#include <common.h>
+#include <command.h>
+#include <mach/mon.h>
+#include <spl.h>
+asm(".arch_extension sec\n\t");
+
+int mon_install(u32 addr, u32 dpsc, u32 freq, u32 bm_addr)
+{
+	int result;
+
+	__asm__ __volatile__ (
+		"stmfd r13!, {lr}\n"
+		"mov r0, %1\n"
+		"mov r1, %2\n"
+		"mov r2, %3\n"
+		"mov r3, %4\n"
+		"blx r0\n"
+		"mov %0, r0\n"
+		"ldmfd r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (addr), "r" (dpsc), "r" (freq), "r" (bm_addr)
+		: "cc", "r0", "r1", "r2", "r3", "memory");
+	return result;
+}
+
+int mon_power_on(int core_id, void *ep)
+{
+	int result;
+
+	asm volatile (
+		"stmfd  r13!, {lr}\n"
+		"mov r1, %1\n"
+		"mov r2, %2\n"
+		"mov r0, #0\n"
+		"smc	#0\n"
+		"mov %0, r0\n"
+		"ldmfd  r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (core_id), "r" (ep)
+		: "cc", "r0", "r1", "r2", "memory");
+	return  result;
+}
+
+int mon_power_off(int core_id)
+{
+	int result;
+
+	asm volatile (
+		"stmfd  r13!, {lr}\n"
+		"mov r1, %1\n"
+		"mov r0, #1\n"
+		"smc	#1\n"
+		"mov %0, r0\n"
+		"ldmfd  r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (core_id)
+		: "cc", "r0", "r1", "memory");
+	return  result;
+}
+
+#ifdef CONFIG_TI_SECURE_DEVICE
+#define KS2_HS_SEC_HEADER_LEN	0x60
+#define KS2_HS_SEC_TAG_OFFSET	0x34
+#define KS2_AUTH_CMD		130
+
+/**
+ * k2_hs_bm_auth() - Invokes security functions using a
+ * proprietary TI interface. This binary and source for
+ * this is available in the secure development package or
+ * SECDEV. For details on how to access this please refer
+ * doc/README.ti-secure
+ *
+ * @cmd: Secure monitor command
+ * @arg1: Argument for command
+ *
+ * returns non-zero value on success, zero on error
+ */
+static int k2_hs_bm_auth(int cmd, void *arg1)
+{
+	int result;
+
+	asm volatile (
+		"stmfd  r13!, {r4-r12, lr}\n"
+		"mov r0, %1\n"
+		"mov r1, %2\n"
+		"smc #2\n"
+		"mov %0, r0\n"
+		"ldmfd r13!, {r4-r12, lr}\n"
+		: "=&r" (result)
+		: "r" (cmd), "r" (arg1)
+		: "cc", "r0", "r1", "memory");
+
+	return  result;
+}
+
+void board_fit_image_post_process(void **p_image, size_t *p_size)
+{
+	int result = 0;
+	void *image = *p_image;
+
+	if (strncmp(image + KS2_HS_SEC_TAG_OFFSET, "KEYS", 4)) {
+		printf("No signature found in image!\n");
+		hang();
+	}
+
+	result = k2_hs_bm_auth(KS2_AUTH_CMD, image);
+	if (result == 0) {
+		printf("Authentication failed!\n");
+		hang();
+	}
+
+	/*
+	 * Overwrite the image headers after authentication
+	 * and decryption. Update size to reflect removal
+	 * of header and restore original file size.
+	 */
+	*p_size = get_unaligned_le32(image + (*p_size - 4));
+	memcpy(image, image + KS2_HS_SEC_HEADER_LEN, *p_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");
+}
+#endif