diff options
Diffstat (limited to 'plat/intel/soc/common/socfpga_storage.c')
| -rw-r--r-- | plat/intel/soc/common/socfpga_storage.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/plat/intel/soc/common/socfpga_storage.c b/plat/intel/soc/common/socfpga_storage.c new file mode 100644 index 0000000..a2f2c18 --- /dev/null +++ b/plat/intel/soc/common/socfpga_storage.c @@ -0,0 +1,193 @@ +/* + * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2019, Intel Corporation. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch_helpers.h> +#include <assert.h> +#include <common/debug.h> +#include <common/tbbr/tbbr_img_def.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/io/io_storage.h> +#include <drivers/mmc.h> +#include <drivers/partition/partition.h> +#include <lib/mmio.h> +#include <tools_share/firmware_image_package.h> + +#include "socfpga_private.h" + +#define PLAT_FIP_BASE (0) +#define PLAT_FIP_MAX_SIZE (0x1000000) +#define PLAT_MMC_DATA_BASE (0xffe3c000) +#define PLAT_MMC_DATA_SIZE (0x2000) +#define PLAT_QSPI_DATA_BASE (0x3C00000) +#define PLAT_QSPI_DATA_SIZE (0x1000000) + + +static const io_dev_connector_t *fip_dev_con; +static const io_dev_connector_t *boot_dev_con; + +static uintptr_t fip_dev_handle; +static uintptr_t boot_dev_handle; + +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, +}; + +uintptr_t a2_lba_offset; +const char a2[] = {0xa2, 0x0}; + +static const io_block_spec_t gpt_block_spec = { + .offset = 0, + .length = MMC_BLOCK_SIZE +}; + +static int check_fip(const uintptr_t spec); +static int check_dev(const uintptr_t spec); + +static io_block_dev_spec_t boot_dev_spec; +static int (*register_io_dev)(const io_dev_connector_t **); + +static io_block_spec_t fip_spec = { + .offset = PLAT_FIP_BASE, + .length = PLAT_FIP_MAX_SIZE, +}; + +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] = { + &boot_dev_handle, + (uintptr_t)&fip_spec, + check_dev + }, + [BL2_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl2_uuid_spec, + check_fip + }, + [BL31_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t)&bl31_uuid_spec, + check_fip + }, + [BL33_IMAGE_ID] = { + &fip_dev_handle, + (uintptr_t) &bl33_uuid_spec, + check_fip + }, + [GPT_IMAGE_ID] = { + &boot_dev_handle, + (uintptr_t) &gpt_block_spec, + check_dev + }, +}; + +static int check_dev(const uintptr_t spec) +{ + int result; + uintptr_t local_handle; + + result = io_dev_init(boot_dev_handle, (uintptr_t)NULL); + if (result == 0) { + result = io_open(boot_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; + + 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); + } + return result; +} + +void socfpga_io_setup(int boot_source) +{ + int result; + + switch (boot_source) { + case BOOT_SOURCE_SDMMC: + register_io_dev = ®ister_io_dev_block; + boot_dev_spec.buffer.offset = PLAT_MMC_DATA_BASE; + boot_dev_spec.buffer.length = MMC_BLOCK_SIZE; + boot_dev_spec.ops.read = mmc_read_blocks; + boot_dev_spec.ops.write = mmc_write_blocks; + boot_dev_spec.block_size = MMC_BLOCK_SIZE; + break; + + case BOOT_SOURCE_QSPI: + register_io_dev = ®ister_io_dev_memmap; + fip_spec.offset = fip_spec.offset + PLAT_QSPI_DATA_BASE; + break; + + default: + ERROR("Unsupported boot source\n"); + panic(); + break; + } + + result = (*register_io_dev)(&boot_dev_con); + assert(result == 0); + + result = register_io_dev_fip(&fip_dev_con); + assert(result == 0); + + result = io_dev_open(boot_dev_con, (uintptr_t)&boot_dev_spec, + &boot_dev_handle); + assert(result == 0); + + result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle); + assert(result == 0); + + if (boot_source == BOOT_SOURCE_SDMMC) { + partition_init(GPT_IMAGE_ID); + fip_spec.offset = get_partition_entry(a2)->start; + } + + (void)result; +} + +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; +} |