diff options
Diffstat (limited to 'plat/hisilicon/hikey/hikey_io_storage.c')
| -rw-r--r-- | plat/hisilicon/hikey/hikey_io_storage.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/plat/hisilicon/hikey/hikey_io_storage.c b/plat/hisilicon/hikey/hikey_io_storage.c new file mode 100644 index 00000000..57c66d50 --- /dev/null +++ b/plat/hisilicon/hikey/hikey_io_storage.c @@ -0,0 +1,210 @@ +/* + * 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 <emmc.h> +#include <errno.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 <platform_def.h> +#include <semihosting.h> /* For FOPEN_MODE_... */ +#include <string.h> +#include "hikey_private.h" + +#define EMMC_BLOCK_SHIFT 9 + +/* Page 1024, since only a few pages before 2048 are used as partition table */ +#define SERIALNO_EMMC_OFFSET (1024 * 512) + +struct plat_io_policy { + uintptr_t *dev_handle; + uintptr_t image_spec; + int (*check)(const uintptr_t spec); +}; + +static const io_dev_connector_t *emmc_dev_con; +static uintptr_t emmc_dev_handle; +static const io_dev_connector_t *fip_dev_con; +static uintptr_t fip_dev_handle; + +static int check_emmc(const uintptr_t spec); +static int check_fip(const uintptr_t spec); + +static const io_block_spec_t emmc_fip_spec = { + .offset = HIKEY_FIP_BASE, + .length = HIKEY_FIP_MAX_SIZE, +}; + +static const io_block_dev_spec_t emmc_dev_spec = { + /* It's used as temp buffer in block driver. */ +#ifdef IMAGE_BL1 + .buffer = { + .offset = HIKEY_BL1_MMC_DATA_BASE, + .length = HIKEY_BL1_MMC_DATA_SIZE, + }, +#else + .buffer = { + .offset = HIKEY_MMC_DATA_BASE, + .length = HIKEY_MMC_DATA_SIZE, + }, +#endif + .ops = { + .read = emmc_read_blocks, + .write = emmc_write_blocks, + }, + .block_size = EMMC_BLOCK_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 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, +}; + +static const io_uuid_spec_t scp_bl2_uuid_spec = { + .uuid = UUID_SCP_FIRMWARE_SCP_BL2, +}; + +static const struct plat_io_policy policies[] = { + [FIP_IMAGE_ID] = { + &emmc_dev_handle, + (uintptr_t)&emmc_fip_spec, + check_emmc + }, + [BL2_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl2_uuid_spec, + check_fip + }, + [SCP_BL2_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&scp_bl2_uuid_spec, + check_fip + }, + [BL31_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl31_uuid_spec, + check_fip + }, + [BL32_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl32_uuid_spec, + check_fip + }, + [BL32_EXTRA1_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl32_extra1_uuid_spec, + check_fip + }, + [BL32_EXTRA2_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl32_extra2_uuid_spec, + check_fip + }, + [BL33_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl33_uuid_spec, + check_fip + } +}; + +static int check_emmc(const uintptr_t spec) +{ + int result; + uintptr_t local_handle; + + result = io_dev_init(emmc_dev_handle, (uintptr_t)NULL); + if (result == 0) { + result = io_open(emmc_dev_handle, spec, &local_handle); + if (result == 0) + io_close(local_handle); + } + return result; +} + +static int check_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; +} + +void hikey_io_setup(void) +{ + int result; + + result = register_io_dev_block(&emmc_dev_con); + assert(result == 0); + + result = register_io_dev_fip(&fip_dev_con); + assert(result == 0); + + result = io_dev_open(emmc_dev_con, (uintptr_t)&emmc_dev_spec, + &emmc_dev_handle); + assert(result == 0); + + result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle); + assert(result == 0); + + /* Ignore improbable errors in release builds */ + (void)result; +} + +/* 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); + assert(result == 0); + + *image_spec = policy->image_spec; + *dev_handle = *(policy->dev_handle); + + return result; +} |