plat: marvell: Add common ARMADA platform components

Add common Marvell ARMADA platform components.
This patch also includes common components for Marvell
ARMADA 8K platforms.

Change-Id: I42192fdc6525a42e46b3ac2ad63c83db9bcbfeaf
Signed-off-by: Hanna Hawa <hannah@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/plat/marvell/common/marvell_io_storage.c b/plat/marvell/common/marvell_io_storage.c
new file mode 100644
index 0000000..cb9ece2
--- /dev/null
+++ b/plat/marvell/common/marvell_io_storage.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <assert.h>
+#include <bl_common.h>		/* For ARRAY_SIZE */
+#include <debug.h>
+#include <firmware_image_package.h>
+#include <io_driver.h>
+#include <io_fip.h>
+#include <io_memmap.h>
+#include <io_storage.h>
+#include <platform_def.h>
+#include <string.h>
+
+/* IO devices */
+static const io_dev_connector_t *fip_dev_con;
+static uintptr_t fip_dev_handle;
+static const io_dev_connector_t *memmap_dev_con;
+static uintptr_t memmap_dev_handle;
+
+static const io_block_spec_t fip_block_spec = {
+	.offset = PLAT_MARVELL_FIP_BASE,
+	.length = PLAT_MARVELL_FIP_MAX_SIZE
+};
+
+static const io_uuid_spec_t bl2_uuid_spec = {
+	.uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2,
+};
+
+static const io_uuid_spec_t scp_bl2_uuid_spec = {
+	.uuid = UUID_SCP_FIRMWARE_SCP_BL2,
+};
+
+static const io_uuid_spec_t bl31_uuid_spec = {
+	.uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31,
+};
+static const io_uuid_spec_t bl32_uuid_spec = {
+	.uuid = UUID_SECURE_PAYLOAD_BL32,
+};
+static const io_uuid_spec_t bl33_uuid_spec = {
+	.uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
+};
+
+static int open_fip(const uintptr_t spec);
+static int open_memmap(const uintptr_t spec);
+
+struct plat_io_policy {
+	uintptr_t *dev_handle;
+	uintptr_t image_spec;
+	int (*check)(const uintptr_t spec);
+};
+
+/* By default, Marvell platforms load images from the FIP */
+static const struct plat_io_policy policies[] = {
+	[FIP_IMAGE_ID] = {
+		&memmap_dev_handle,
+		(uintptr_t)&fip_block_spec,
+		open_memmap
+	},
+	[BL2_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl2_uuid_spec,
+		open_fip
+	},
+	[SCP_BL2_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&scp_bl2_uuid_spec,
+		open_fip
+	},
+	[BL31_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl31_uuid_spec,
+		open_fip
+	},
+	[BL32_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl32_uuid_spec,
+		open_fip
+	},
+	[BL33_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl33_uuid_spec,
+		open_fip
+	},
+};
+
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak plat_marvell_io_setup
+#pragma weak plat_marvell_get_alt_image_source
+
+
+static int open_fip(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	/* See if a Firmware Image Package is available */
+	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) {
+			VERBOSE("Using FIP\n");
+			io_close(local_image_handle);
+		}
+	}
+	return result;
+}
+
+
+static int open_memmap(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	result = io_dev_init(memmap_dev_handle, (uintptr_t)NULL);
+	if (result == 0) {
+		result = io_open(memmap_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			VERBOSE("Using Memmap\n");
+			io_close(local_image_handle);
+		}
+	}
+	return result;
+}
+
+
+void marvell_io_setup(void)
+{
+	int io_result;
+
+	io_result = register_io_dev_fip(&fip_dev_con);
+	assert(io_result == 0);
+
+	io_result = register_io_dev_memmap(&memmap_dev_con);
+	assert(io_result == 0);
+
+	/* Open connections to devices and cache the handles */
+	io_result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
+				&fip_dev_handle);
+	assert(io_result == 0);
+
+	io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
+				&memmap_dev_handle);
+	assert(io_result == 0);
+
+	/* Ignore improbable errors in release builds */
+	(void)io_result;
+}
+
+void plat_marvell_io_setup(void)
+{
+	marvell_io_setup();
+}
+
+int plat_marvell_get_alt_image_source(
+	unsigned int image_id __attribute__((unused)),
+	uintptr_t *dev_handle __attribute__((unused)),
+	uintptr_t *image_spec __attribute__((unused)))
+{
+	/* By default do not try an alternative */
+	return -ENOENT;
+}
+
+/*
+ * Return an IO device handle and specification which can be used to access
+ * an image. Use this to enforce platform load policy
+ */
+int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
+			  uintptr_t *image_spec)
+{
+	int result;
+	const struct plat_io_policy *policy;
+
+	assert(image_id < ARRAY_SIZE(policies));
+
+	policy = &policies[image_id];
+	result = policy->check(policy->image_spec);
+	if (result == 0) {
+		*image_spec = policy->image_spec;
+		*dev_handle = *(policy->dev_handle);
+	} else {
+		VERBOSE("Trying alternative IO\n");
+		result = plat_marvell_get_alt_image_source(image_id, dev_handle,
+						       image_spec);
+	}
+
+	return result;
+}
+
+/*
+ * See if a Firmware Image Package is available,
+ * by checking if TOC is valid or not.
+ */
+int marvell_io_is_toc_valid(void)
+{
+	int result;
+
+	result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
+
+	return result == 0;
+}