feat(synquacer): add BL2 support

Add BL2 support by default. Move the legacy mode behind the
RESET_TO_BL31 define.

Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: Masahisa Kojima <masahisa.kojima@linaro.org>
Cc: Manish V Badarkhe <manish.badarkhe@arm.com>
Cc: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: Ic490745a7e8f6114172733428ebd6bd6adfcc1ec
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
diff --git a/plat/socionext/synquacer/sq_bl2_setup.c b/plat/socionext/synquacer/sq_bl2_setup.c
new file mode 100644
index 0000000..a98d912
--- /dev/null
+++ b/plat/socionext/synquacer/sq_bl2_setup.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2022, Socionext Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <common/desc_image_load.h>
+#include <common/image_decompress.h>
+#include <drivers/arm/pl011.h>
+#include <drivers/io/io_storage.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+#include <plat/common/platform.h>
+
+#include <platform_def.h>
+#include <sq_common.h>
+
+static console_t console;
+
+void bl2_el3_early_platform_setup(u_register_t x0, u_register_t x1,
+				  u_register_t x2, u_register_t x3)
+{
+	/* Initialize the console to provide early debug support */
+	(void)console_pl011_register(PLAT_SQ_BOOT_UART_BASE,
+			       PLAT_SQ_BOOT_UART_CLK_IN_HZ,
+			       SQ_CONSOLE_BAUDRATE, &console);
+	console_set_scope(&console, CONSOLE_FLAG_BOOT);
+}
+
+void bl2_el3_plat_arch_setup(void)
+{
+	int ret;
+
+	sq_mmap_setup(BL2_BASE, BL2_SIZE, NULL);
+
+	ret = sq_io_setup();
+	if (ret) {
+		ERROR("failed to setup io devices\n");
+		plat_error_handler(ret);
+	}
+}
+
+void bl2_platform_setup(void)
+{
+}
+
+void plat_flush_next_bl_params(void)
+{
+	flush_bl_params_desc();
+}
+
+bl_load_info_t *plat_get_bl_image_load_info(void)
+{
+	return get_bl_load_info_from_mem_params_desc();
+}
+
+bl_params_t *plat_get_next_bl_params(void)
+{
+	return get_next_bl_params_from_mem_params_desc();
+}
+
+void bl2_plat_preload_setup(void)
+{
+}
+
+int bl2_plat_handle_pre_image_load(unsigned int image_id)
+{
+	struct image_info *image_info;
+
+	image_info = sq_get_image_info(image_id);
+
+	return mmap_add_dynamic_region(image_info->image_base,
+				      image_info->image_base,
+				      image_info->image_max_size,
+				      MT_MEMORY | MT_RW | MT_NS);
+}
+
+int bl2_plat_handle_post_image_load(unsigned int image_id)
+{
+	return 0;
+}