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path: root/drivers/mtd/nand/fsl_ifc_spl.c
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Diffstat (limited to 'drivers/mtd/nand/fsl_ifc_spl.c')
-rw-r--r--drivers/mtd/nand/fsl_ifc_spl.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/mtd/nand/fsl_ifc_spl.c b/drivers/mtd/nand/fsl_ifc_spl.c
index cbeb74a5bb..4e49a4e154 100644
--- a/drivers/mtd/nand/fsl_ifc_spl.c
+++ b/drivers/mtd/nand/fsl_ifc_spl.c
@@ -11,6 +11,9 @@
#include <asm/io.h>
#include <fsl_ifc.h>
#include <linux/mtd/nand.h>
+#ifdef CONFIG_CHAIN_OF_TRUST
+#include <fsl_validate.h>
+#endif
static inline int is_blank(uchar *addr, int page_size)
{
@@ -268,6 +271,27 @@ void nand_boot(void)
*/
flush_cache(CONFIG_SYS_NAND_U_BOOT_DST, CONFIG_SYS_NAND_U_BOOT_SIZE);
#endif
+
+#ifdef CONFIG_CHAIN_OF_TRUST
+ /*
+ * U-Boot header is appended at end of U-boot image, so
+ * calculate U-boot header address using U-boot header size.
+ */
+#define CONFIG_U_BOOT_HDR_ADDR \
+ ((CONFIG_SYS_NAND_U_BOOT_START + \
+ CONFIG_SYS_NAND_U_BOOT_SIZE) - \
+ CONFIG_U_BOOT_HDR_SIZE)
+ spl_validate_uboot(CONFIG_U_BOOT_HDR_ADDR,
+ CONFIG_SYS_NAND_U_BOOT_START);
+ /*
+ * In case of failure in validation, spl_validate_uboot would
+ * not return back in case of Production environment with ITS=1.
+ * Thus U-Boot will not start.
+ * In Development environment (ITS=0 and SB_EN=1), the function
+ * may return back in case of non-fatal failures.
+ */
+#endif
+
uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
uboot();
}