1 files changed, 105 insertions, 0 deletions
diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
new file mode 100644
index 0000000000..6712d7b8cf
--- /dev/null
+++ b/board/xilinx/zynqmp/cmds.c
@@ -0,0 +1,105 @@
+/*
+ * (C) Copyright 2018 Xilinx, Inc.
+ * Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+
+static int zynqmp_verify_secure(u8 *key_ptr, u8 *src_ptr, u32 len)
+{
+	int ret;
+	u32 src_lo, src_hi;
+	u32 key_lo = 0;
+	u32 key_hi = 0;
+	u32 ret_payload[PAYLOAD_ARG_CNT];
+	u64 addr;
+
+	if ((ulong)src_ptr != ALIGN((ulong)src_ptr,
+				    CONFIG_SYS_CACHELINE_SIZE)) {
+		printf("Failed: source address not aligned:%p\n", src_ptr);
+		return -EINVAL;
+	}
+
+	src_lo = lower_32_bits((ulong)src_ptr);
+	src_hi = upper_32_bits((ulong)src_ptr);
+	flush_dcache_range((ulong)src_ptr, (ulong)(src_ptr + len));
+
+	if (key_ptr) {
+		key_lo = lower_32_bits((ulong)key_ptr);
+		key_hi = upper_32_bits((ulong)key_ptr);
+		flush_dcache_range((ulong)key_ptr,
+				   (ulong)(key_ptr + KEY_PTR_LEN));
+	}
+
+	ret = invoke_smc(ZYNQMP_SIP_SVC_PM_SECURE_IMG_LOAD, src_lo, src_hi,
+			 key_lo, key_hi, ret_payload);
+	if (ret) {
+		printf("Failed: secure op status:0x%x\n", ret);
+	} else {
+		addr = (u64)ret_payload[1] << 32 | ret_payload[2];
+		printf("Verified image at 0x%llx\n", addr);
+		env_set_hex("zynqmp_verified_img_addr", addr);
+	}
+
+	return ret;
+}
+
+/**
+ * do_zynqmp - Handle the "zynqmp" command-line command
+ * @cmdtp:	Command data struct pointer
+ * @flag:	Command flag
+ * @argc:	Command-line argument count
+ * @argv:	Array of command-line arguments
+ *
+ * Processes the zynqmp specific commands
+ *
+ * Return: return 0 on success and CMD_RET_USAGE incase of misuse and error
+ */
+static int do_zynqmp(cmd_tbl_t *cmdtp, int flag, int argc,
+		     char *const argv[])
+{
+	u64 src_addr;
+	u32 len;
+	u8 *key_ptr = NULL;
+	u8 *src_ptr;
+	int ret;
+
+	if (argc > 5 || argc < 4 || strncmp(argv[1], "secure", 6))
+		return CMD_RET_USAGE;
+
+	src_addr = simple_strtoull(argv[2], NULL, 16);
+
+	len = simple_strtoul(argv[3], NULL, 16);
+
+	if (argc > 4)
+		key_ptr = (uint8_t *)(uintptr_t)simple_strtoull(argv[4],
+								NULL, 16);
+
+	src_ptr = (uint8_t *)(uintptr_t)src_addr;
+
+	ret = zynqmp_verify_secure(key_ptr, src_ptr, len);
+	if (ret)
+		return CMD_RET_FAILURE;
+
+	return CMD_RET_SUCCESS;
+}
+
+/***************************************************/
+#ifdef CONFIG_SYS_LONGHELP
+static char zynqmp_help_text[] =
+	"secure src len [key_addr] - verifies secure images of $len bytes\n"
+	"                            long at address $src. Optional key_addr\n"
+	"                            can be specified if user key needs to\n"
+	"                            be used for decryption\n";
+#endif
+
+U_BOOT_CMD(
+	zynqmp, 5, 1, do_zynqmp,
+	"Verify and load secure images",
+	zynqmp_help_text
+)