diff options
Diffstat (limited to 'drivers/io/io_fip.c')
| -rw-r--r-- | drivers/io/io_fip.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/io/io_fip.c b/drivers/io/io_fip.c index 5d49fffaa..02f85d603 100644 --- a/drivers/io/io_fip.c +++ b/drivers/io/io_fip.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -46,6 +46,7 @@ typedef struct { */ typedef struct { uintptr_t dev_spec; + uint16_t plat_toc_flag; } fip_dev_state_t; static const uuid_t uuid_null; @@ -220,6 +221,11 @@ static int fip_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params) uintptr_t backend_handle; fip_toc_header_t header; size_t bytes_read; + fip_dev_state_t *state; + + assert(dev_info != NULL); + + state = (fip_dev_state_t *)dev_info->info; /* Obtain a reference to the image by querying the platform layer */ result = plat_get_image_source(image_id, &backend_dev_handle, @@ -248,6 +254,11 @@ static int fip_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params) result = -ENOENT; } else { VERBOSE("FIP header looks OK.\n"); + /* + * Store 16-bit Platform ToC flags field which occupies + * bits [32-47] in fip header. + */ + state->plat_toc_flag = (header.flags >> 32) & 0xffff; } } @@ -453,3 +464,17 @@ int register_io_dev_fip(const io_dev_connector_t **dev_con) return result; } + +/* Function to retrieve plat_toc_flags, previously saved in FIP dev */ +int fip_dev_get_plat_toc_flag(io_dev_info_t *dev_info, uint16_t *plat_toc_flag) +{ + fip_dev_state_t *state; + + assert(dev_info != NULL); + + state = (fip_dev_state_t *)dev_info->info; + + *plat_toc_flag = state->plat_toc_flag; + + return 0; +} |