plat: imx8mm: Add image io-storage logic for TBBR FIP booting
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
Change-Id: I9833a54d0938d70886ac88b1922b17edf1dee8e0
diff --git a/plat/imx/imx8m/imx8mm/imx8mm_io_storage.c b/plat/imx/imx8m/imx8mm/imx8mm_io_storage.c
new file mode 100644
index 0000000..ff6687e
--- /dev/null
+++ b/plat/imx/imx8m/imx8mm/imx8mm_io_storage.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <drivers/io/io_block.h>
+#include <drivers/io/io_driver.h>
+#include <drivers/io/io_fip.h>
+#include <drivers/io/io_driver.h>
+#include <drivers/io/io_memmap.h>
+#include <drivers/mmc.h>
+#include <lib/utils_def.h>
+#include <tbbr_img_def.h>
+#include <tools_share/firmware_image_package.h>
+
+#include <platform_def.h>
+
+static const io_dev_connector_t *fip_dev_con;
+static uintptr_t fip_dev_handle;
+
+#ifndef IMX8MM_FIP_MMAP
+static const io_dev_connector_t *mmc_dev_con;
+static uintptr_t mmc_dev_handle;
+
+static const io_block_spec_t mmc_fip_spec = {
+ .offset = IMX8MM_FIP_MMC_BASE,
+ .length = IMX8MM_FIP_SIZE
+};
+
+static const io_block_dev_spec_t mmc_dev_spec = {
+ /* It's used as temp buffer in block driver. */
+ .buffer = {
+ .offset = IMX8MM_FIP_BASE,
+ /* do we need a new value? */
+ .length = IMX8MM_FIP_SIZE
+ },
+ .ops = {
+ .read = mmc_read_blocks,
+ .write = mmc_write_blocks,
+ },
+ .block_size = MMC_BLOCK_SIZE,
+};
+
+static int open_mmc(const uintptr_t spec);
+
+#else
+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 = IMX8MM_FIP_BASE,
+ .length = IMX8MM_FIP_SIZE
+};
+static int open_memmap(const uintptr_t spec);
+#endif
+
+static int open_fip(const uintptr_t spec);
+
+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 bl32_extra1_uuid_spec = {
+ .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1,
+};
+
+static const io_uuid_spec_t bl32_extra2_uuid_spec = {
+ .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2,
+};
+
+static const io_uuid_spec_t bl33_uuid_spec = {
+ .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
+};
+
+#if TRUSTED_BOARD_BOOT
+static const io_uuid_spec_t tb_fw_cert_uuid_spec = {
+ .uuid = UUID_TRUSTED_BOOT_FW_CERT,
+};
+
+static const io_uuid_spec_t trusted_key_cert_uuid_spec = {
+ .uuid = UUID_TRUSTED_KEY_CERT,
+};
+
+static const io_uuid_spec_t soc_fw_key_cert_uuid_spec = {
+ .uuid = UUID_SOC_FW_KEY_CERT,
+};
+
+static const io_uuid_spec_t tos_fw_key_cert_uuid_spec = {
+ .uuid = UUID_TRUSTED_OS_FW_KEY_CERT,
+};
+
+static const io_uuid_spec_t tos_fw_cert_uuid_spec = {
+ .uuid = UUID_TRUSTED_OS_FW_CONTENT_CERT,
+};
+
+static const io_uuid_spec_t soc_fw_content_cert_uuid_spec = {
+ .uuid = UUID_SOC_FW_CONTENT_CERT,
+};
+
+static const io_uuid_spec_t nt_fw_key_cert_uuid_spec = {
+ .uuid = UUID_NON_TRUSTED_FW_KEY_CERT,
+};
+
+static const io_uuid_spec_t nt_fw_cert_uuid_spec = {
+ .uuid = UUID_NON_TRUSTED_FW_CONTENT_CERT,
+};
+#endif /* TRUSTED_BOARD_BOOT */
+
+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[] = {
+#ifndef IMX8MM_FIP_MMAP
+ [FIP_IMAGE_ID] = {
+ &mmc_dev_handle,
+ (uintptr_t)&mmc_fip_spec,
+ open_mmc
+ },
+#else
+ [FIP_IMAGE_ID] = {
+ &memmap_dev_handle,
+ (uintptr_t)&fip_block_spec,
+ open_memmap
+ },
+#endif
+ [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
+ },
+ [BL32_EXTRA1_IMAGE_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&bl32_extra1_uuid_spec,
+ open_fip
+ },
+ [BL32_EXTRA2_IMAGE_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&bl32_extra2_uuid_spec,
+ open_fip
+ },
+ [BL33_IMAGE_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&bl33_uuid_spec,
+ open_fip
+ },
+#if TRUSTED_BOARD_BOOT
+ [TRUSTED_BOOT_FW_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&tb_fw_cert_uuid_spec,
+ open_fip
+ },
+ [SOC_FW_KEY_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&soc_fw_key_cert_uuid_spec,
+ open_fip
+ },
+ [TRUSTED_KEY_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&trusted_key_cert_uuid_spec,
+ open_fip
+ },
+ [TRUSTED_OS_FW_KEY_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&tos_fw_key_cert_uuid_spec,
+ open_fip
+ },
+ [NON_TRUSTED_FW_KEY_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&nt_fw_key_cert_uuid_spec,
+ open_fip
+ },
+ [SOC_FW_CONTENT_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&soc_fw_content_cert_uuid_spec,
+ open_fip
+ },
+ [TRUSTED_OS_FW_CONTENT_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&tos_fw_cert_uuid_spec,
+ open_fip
+ },
+ [NON_TRUSTED_FW_CONTENT_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&nt_fw_cert_uuid_spec,
+ open_fip
+ },
+#endif /* TRUSTED_BOARD_BOOT */
+};
+
+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;
+}
+
+#ifndef IMX8MM_FIP_MMAP
+static int open_mmc(const uintptr_t spec)
+{
+ int result;
+ uintptr_t local_handle;
+
+ result = io_dev_init(mmc_dev_handle, (uintptr_t)NULL);
+ if (result == 0) {
+ result = io_open(mmc_dev_handle, spec, &local_handle);
+ if (result == 0) {
+ io_close(local_handle);
+ }
+ }
+ return result;
+}
+#else
+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;
+}
+#endif
+
+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);
+ assert(result == 0);
+
+ *image_spec = policy->image_spec;
+ *dev_handle = *policy->dev_handle;
+
+ return result;
+}
+
+void plat_imx8mm_io_setup(void)
+{
+ int result __unused;
+
+#ifndef IMX8MM_FIP_MMAP
+ result = register_io_dev_block(&mmc_dev_con);
+ assert(result == 0);
+
+ result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_dev_spec,
+ &mmc_dev_handle);
+ assert(result == 0);
+
+#else
+ result = register_io_dev_memmap(&memmap_dev_con);
+ assert(result == 0);
+
+ result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
+ &memmap_dev_handle);
+ assert(result == 0);
+#endif
+
+ result = register_io_dev_fip(&fip_dev_con);
+ assert(result == 0);
+
+ result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
+ &fip_dev_handle);
+ assert(result == 0);
+}