1 files changed, 98 insertions, 0 deletions
diff --git a/include/config_fsl_chain_trust.h b/include/config_fsl_chain_trust.h
new file mode 100644
index 0000000..4f522db
--- /dev/null
+++ b/include/config_fsl_chain_trust.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ */
+
+#ifndef __CONFIG_FSL_CHAIN_TRUST_H
+#define __CONFIG_FSL_CHAIN_TRUST_H
+
+#ifdef CONFIG_CHAIN_OF_TRUST
+
+#ifndef CONFIG_EXTRA_ENV
+#define CONFIG_EXTRA_ENV	""
+#endif
+
+/*
+ * 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.
+ */
+
+/*
+ * Define the key hash for boot script here if public/private key pair used to
+ * sign bootscript are different from the SRK hash put in the fuse
+ * Example of defining KEY_HASH is
+ * #define CONFIG_BOOTSCRIPT_KEY_HASH \
+ *	 "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
+ */
+
+#ifdef CONFIG_USE_BOOTARGS
+#define CONFIG_SET_BOOTARGS	"setenv bootargs \'" CONFIG_BOOTARGS" \';"
+#else
+#define CONFIG_SET_BOOTARGS	"setenv bootargs \'root=/dev/ram "	\
+				"rw console=ttyS0,115200 ramdisk_size=600000\';"
+#endif
+
+
+#ifdef CONFIG_BOOTSCRIPT_KEY_HASH
+#define CONFIG_SECBOOT \
+	"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
+	CONFIG_SET_BOOTARGS	\
+	CONFIG_EXTRA_ENV	\
+	"esbc_validate $bs_hdraddr " \
+	  __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
+	"source $img_addr;"	\
+	"esbc_halt\0"
+#else
+#define CONFIG_SECBOOT \
+	"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
+	CONFIG_SET_BOOTARGS	\
+	CONFIG_EXTRA_ENV	\
+	"esbc_validate $bs_hdraddr;" \
+	"source $img_addr;"	\
+	"esbc_halt\0"
+#endif
+
+#ifdef CONFIG_BOOTSCRIPT_COPY_RAM
+#define CONFIG_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_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT)
+#define CONFIG_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 CONFIG_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 CONFIG_BS_COPY_CMD \
+	"cp.b $bs_hdr_device $bs_hdr_ram  $bs_hdr_size ;" \
+	"cp.b $bs_device $bs_ram  $bs_size ;"
+#endif
+#endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
+
+#ifndef CONFIG_BS_COPY_ENV
+#define CONFIG_BS_COPY_ENV
+#endif
+
+#ifndef CONFIG_BS_COPY_CMD
+#define CONFIG_BS_COPY_CMD
+#endif
+
+#define CONFIG_CHAIN_BOOT_CMD	CONFIG_BS_COPY_ENV \
+				CONFIG_BS_COPY_CMD \
+				CONFIG_SECBOOT
+
+#endif
+#endif