hikey960: fix invoking driver init in image load driver

It's unnecessary to call platform driver initialization in image
load driver. We could make bl2_platform_setup() to executing
just before SCP_BL2 by setting flag IMAGE_ATTRIB_PLAT_SETUP.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

plat/hisilicon/hikey960/hikey960_bl2_setup.c

@@ -157,7 +157,7 @@ static void hikey960_ufs_reset(void)
 	} while (data & PERI_UFS_BIT);
 }
 
-void hikey960_init_ufs(void)
+static void hikey960_init_ufs(void)
 {
 	dw_ufs_params_t ufs_params;
 
@@ -747,4 +747,6 @@ void bl2_platform_setup(void)
 	hikey960_tzc_init();
 	hikey960_peri_init();
 	hikey960_pinmux_init();
+	hikey960_init_ufs();
+	hikey960_io_setup();
 }

plat/hisilicon/hikey960/hikey960_image_load.c

 /*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -8,8 +8,6 @@
 #include <desc_image_load.h>
 #include <platform.h>
 
-#include "hikey960_private.h"
-
 /*******************************************************************************
  * This function flushes the data structures so that they are visible
  * in memory for the next BL image.
@@ -24,10 +22,6 @@ void plat_flush_next_bl_params(void)
  ******************************************************************************/
 bl_load_info_t *plat_get_bl_image_load_info(void)
 {
-	/* Required before loading scp_bl2 */
-	hikey960_init_ufs();
-	hikey960_io_setup();
-
 	return get_bl_load_info_from_mem_params_desc();
 }
 

plat/hisilicon/hikey960/hikey960_private.h

@@ -24,7 +24,6 @@ void hikey960_init_mmu_el3(unsigned long total_base,
 			unsigned long ro_limit,
 			unsigned long coh_start,
 			unsigned long coh_limit);
-void hikey960_init_ufs(void);
 void hikey960_io_setup(void);
 int hikey960_read_boardid(unsigned int *id);
 void set_retention_ticks(unsigned int val);