blob: bb3566297f2fb5155e75fc61c4e0201e042a3bc5 [file] [log] [blame]
/*
* Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <common/debug.h>
#include <drivers/io/io_block.h>
#include <drivers/io/io_driver.h>
#include <drivers/io/io_fip.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 IMX_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 = IMX_FIP_MMC_BASE,
.length = IMX_FIP_SIZE
};
static const io_block_dev_spec_t mmc_dev_spec = {
/* It's used as temp buffer in block driver. */
.buffer = {
.offset = IMX_FIP_BASE,
/* do we need a new value? */
.length = IMX_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 = IMX_FIP_BASE,
.length = IMX_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 */
/* TODO: this structure is replicated multiple times. rationalize it ! */
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 IMX_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 IMX_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_imx_io_setup(void)
{
int result __unused;
#ifndef IMX_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);
}