Merge pull request #1760 from igoropaniuk/rpi3_preloaded_dtb_fix

rpi3: fix RPI3_PRELOADED_DTB_BASE usage

plat/rpi3/platform.mk

@@ -130,7 +130,9 @@ endif
 $(eval $(call add_define,RPI3_BL32_RAM_LOCATION_ID))
 $(eval $(call add_define,RPI3_BL33_IN_AARCH32))
 $(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
+ifdef RPI3_PRELOADED_DTB_BASE
 $(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
+endif
 $(eval $(call add_define,RPI3_RUNTIME_UART))
 $(eval $(call add_define,RPI3_USE_UEFI_MAP))
 

plat/rpi3/rpi3_bl31_setup.c

@@ -141,6 +141,7 @@ void bl31_plat_arch_setup(void)
 	enable_mmu_el3(0);
 }
 
+#ifdef RPI3_PRELOADED_DTB_BASE
 /*
  * Add information to the device tree (if any) about the reserved DRAM used by
  * the Trusted Firmware.
@@ -204,6 +205,7 @@ static void rpi3_dtb_add_mem_rsv(void)
 	INFO("rpi3: Reserved 0x%llx - 0x%llx in DTB\n", SEC_SRAM_BASE,
 	     SEC_SRAM_BASE + SEC_SRAM_SIZE);
 }
+#endif
 
 void bl31_platform_setup(void)
 {