1 files changed, 70 insertions, 0 deletions
diff --git a/include/config_fsl_chain_trust.h b/include/config_fsl_chain_trust.h
new file mode 100644
index 00000000000..380c906ba83
--- /dev/null
+++ b/include/config_fsl_chain_trust.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ */
+
+#ifndef __CONFIG_FSL_CHAIN_TRUST_H
+#define __CONFIG_FSL_CHAIN_TRUST_H
+
+#include <linux/stringify.h>
+
+#ifdef CONFIG_CHAIN_OF_TRUST
+
+/*
+ * Control should not reach back to uboot after validation of images
+ * for secure boot flow and therefore bootscript should have
+ * the bootm command. If control reaches back to uboot anyhow
+ * after validating images, core should just spin.
+ */
+
+#ifdef CONFIG_USE_BOOTARGS
+#define SET_BOOTARGS	"setenv bootargs \'" CONFIG_BOOTARGS" \';"
+#else
+#define SET_BOOTARGS	"setenv bootargs \'root=/dev/ram "	\
+				"rw console=ttyS0,115200 ramdisk_size=600000\';"
+#endif
+
+#define SECBOOT \
+	"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
+	SET_BOOTARGS	\
+	"esbc_validate $bs_hdraddr;" \
+	"source $img_addr;"	\
+	"esbc_halt\0"
+
+#ifdef CONFIG_BOOTSCRIPT_COPY_RAM
+#define BS_COPY_ENV \
+	"setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
+	"setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \
+	"setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
+	"setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
+	"setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \
+	"setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
+
+/* For secure boot flow, default environment used will be used */
+#if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \
+	defined(CONFIG_SD_BOOT)
+#if defined(CONFIG_NAND_BOOT)
+#define BS_COPY_CMD \
+	"nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
+	"nand read $bs_ram $bs_device $bs_size ;"
+#elif defined(CONFIG_SD_BOOT)
+#define BS_COPY_CMD \
+	"mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
+	"mmc read $bs_ram $bs_device $bs_size ;"
+#endif
+#else
+#define BS_COPY_CMD \
+	"cp.b $bs_hdr_device $bs_hdr_ram  $bs_hdr_size ;" \
+	"cp.b $bs_device $bs_ram  $bs_size ;"
+#endif
+#else /* !CONFIG_BOOTSCRIPT_COPY_RAM */
+#define BS_COPY_ENV
+#define BS_COPY_CMD
+#endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
+
+#define CHAIN_BOOT_CMD	BS_COPY_ENV \
+			BS_COPY_CMD \
+			SECBOOT
+
+#endif
+#endif