1 files changed, 150 insertions, 0 deletions
diff --git a/plat/hisilicon/poplar/plat_storage.c b/plat/hisilicon/poplar/plat_storage.c
new file mode 100644
index 00000000..623a61b7
--- /dev/null
+++ b/plat/hisilicon/poplar/plat_storage.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <firmware_image_package.h>
+#include <io_block.h>
+#include <io_driver.h>
+#include <io_fip.h>
+#include <io_memmap.h>
+#include <io_storage.h>
+#include <mmio.h>
+#include <partition/partition.h>
+#include <semihosting.h>
+#include <string.h>
+#include <tbbr_img_def.h>
+#include <utils.h>
+#include "platform_def.h"
+
+static const io_dev_connector_t *mmap_dev_con;
+static const io_dev_connector_t *fip_dev_con;
+
+static uintptr_t mmap_dev_handle;
+static uintptr_t fip_dev_handle;
+
+static int open_mmap(const uintptr_t spec);
+static int open_fip(const uintptr_t spec);
+
+static const io_block_spec_t loader_fip_spec = {
+	.offset		= FIP_BASE,
+	.length		= FIP_SIZE
+};
+
+static const io_uuid_spec_t bl2_uuid_spec = {
+	.uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2,
+};
+
+static const io_uuid_spec_t bl31_uuid_spec = {
+	.uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31,
+};
+
+static const io_uuid_spec_t bl33_uuid_spec = {
+	.uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
+};
+
+struct plat_io_policy {
+	uintptr_t	*dev_handle;
+	uintptr_t	image_spec;
+	int		(*check)(const uintptr_t spec);
+};
+
+static const struct plat_io_policy policies[] = {
+	[FIP_IMAGE_ID] = {
+		&mmap_dev_handle,
+		(uintptr_t)&loader_fip_spec,
+		open_mmap
+	},
+	[BL2_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl2_uuid_spec,
+		open_fip
+	},
+	[BL31_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl31_uuid_spec,
+		open_fip
+	},
+	[BL33_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl33_uuid_spec,
+		open_fip
+	},
+};
+
+static int open_mmap(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	result = io_dev_init(mmap_dev_handle, (uintptr_t)NULL);
+	if (result == 0) {
+		result = io_open(mmap_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			io_close(local_image_handle);
+		}
+	}
+	return result;
+}
+
+static int open_fip(const uintptr_t spec)
+{
+	uintptr_t local_image_handle;
+	int result;
+
+	result = io_dev_init(fip_dev_handle, (uintptr_t) FIP_IMAGE_ID);
+	if (result == 0) {
+		result = io_open(fip_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			io_close(local_image_handle);
+		} else {
+			VERBOSE("error opening fip\n");
+		}
+	} else {
+		VERBOSE("error initializing fip\n");
+	}
+
+	return result;
+}
+
+int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
+			  uintptr_t *image_spec)
+{
+	const struct plat_io_policy *policy;
+	int result;
+
+	assert(image_id < ARRAY_SIZE(policies));
+
+	policy = &policies[image_id];
+	result = policy->check(policy->image_spec);
+	assert(result == 0);
+
+	*image_spec = policy->image_spec;
+	*dev_handle = *(policy->dev_handle);
+
+	return result;
+}
+
+void plat_io_setup(void)
+{
+	int result;
+
+	result = register_io_dev_memmap(&mmap_dev_con);
+	assert(result == 0);
+
+	result = register_io_dev_fip(&fip_dev_con);
+	assert(result == 0);
+
+	result = io_dev_open(fip_dev_con, (uintptr_t)&loader_fip_spec,
+				&fip_dev_handle);
+	assert(result == 0);
+
+	result = io_dev_open(mmap_dev_con, (uintptr_t)NULL, &mmap_dev_handle);
+	assert(result == 0);
+
+	(void) result;
+}