From a63eb1bdcd25246b2c637c7846917dc6dc607725 Mon Sep 17 00:00:00 2001
From: Peter Robinson <pbrobinson@gmail.com>
Date: Thu, 18 Apr 2019 15:44:59 +0100
Subject: [PATCH] add BOOTENV_EFI_SET_FDTFILE_FALLBACK for tegra186 because tx2
 variants

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
 include/config_distro_bootcmd.h   | 2 ++
 include/configs/tegra186-common.h | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
index fc0935fa21..fd1c5f5afa 100644
--- a/include/config_distro_bootcmd.h
+++ b/include/config_distro_bootcmd.h
@@ -118,8 +118,10 @@
 	  "setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; "           \
 	"fi; "
 #else
+#ifndef BOOTENV_EFI_SET_FDTFILE_FALLBACK
 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK
 #endif
+#endif
 
 
 #define BOOTENV_SHARED_EFI                                                \
diff --git a/include/configs/tegra186-common.h b/include/configs/tegra186-common.h
index 5c3ad35c76..d5f21e0907 100644
--- a/include/configs/tegra186-common.h
+++ b/include/configs/tegra186-common.h
@@ -20,6 +20,12 @@
 /* Generic Interrupt Controller */
 #define CONFIG_GICV2
 
+#undef FDTFILE
+#define BOOTENV_EFI_SET_FDTFILE_FALLBACK                                  \
+        "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then "               \
+          "setenv efi_fdtfile ${vendor}/${soc}-${board}${boardver}.dtb; "           \
+        "fi; "
+
 /*
  * Memory layout for where various images get loaded by boot scripts:
  *
@@ -49,7 +55,6 @@
 	"scriptaddr=0x90000000\0" \
 	"pxefile_addr_r=0x90100000\0" \
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
-	"fdtfile=" FDTFILE "\0" \
 	"fdt_addr_r=0x82000000\0" \
 	"ramdisk_addr_r=0x82100000\0"
 
-- 
2.26.0