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| author | Soby Mathew <soby.mathew@arm.com> | 2018-01-15 14:45:33 +0000 |
|---|---|---|
| committer | Soby Mathew <soby.mathew@arm.com> | 2018-02-26 16:31:11 +0000 |
| commit | cab0b5b0452556c9f7ba3fa98c233d3a6a62b023 (patch) | |
| tree | 7f373d294d652a62b4ec7fa508f50c24af37d831 /plat/arm/board/fvp/fvp_io_storage.c | |
| parent | c228956afa415685d7555578f252dfe4d0d1695e (diff) | |
ARM Platforms: Load HW_CONFIG in BL2
The patch adds the necessary changes to load HW_CONFIG in BL2 for
ARM Platforms :
1. The load address of HW_CONFIG is specified via the `hw_config_addr`
property in TB_FW_CONFIG is loaded by BL1. The `hw_config_max_size`
property defines the maximum size to be expected for the HW_CONFIG.
The `arm_dyn_cfg_helpers.c` and corresponding header implements
utility functions to parse these DT properties defined.
The `arm_dyn_cfg.c` implements wrappers to these helpers to enable
them to be invoked from ARM platform layer.
2. `HW_CONFIG` is added to the `bl2_mem_params_descs[]` array which is
the list of images to be loaded by BL2.
3. The `libfdt` sources are now included when BL2 is built
4. A new helper `populate_next_bl_params_config()` is introduced in
desc_image_load.c to populate the subsequent executable BL images
with the `hw_config` and the corresponding `fw_config` if available.
The `plat_get_next_bl_params()` API for ARM platforms is modified to
invoke this new helper.
5. The implementation of `bl2_early_platform_setup2()` is modified to
consider `arg0` as well in addition to `arg1` passed from BL1.
6. Bump up the BL2 size for Juno to accommodate the inclusion of libfdt.
Change-Id: I80f1554adec41753e0d179a5237364f04fe13a3f
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Diffstat (limited to 'plat/arm/board/fvp/fvp_io_storage.c')
| -rw-r--r-- | plat/arm/board/fvp/fvp_io_storage.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/plat/arm/board/fvp/fvp_io_storage.c b/plat/arm/board/fvp/fvp_io_storage.c index f18303ff..11c7c3bc 100644 --- a/plat/arm/board/fvp/fvp_io_storage.c +++ b/plat/arm/board/fvp/fvp_io_storage.c @@ -19,6 +19,7 @@ #define BL32_IMAGE_NAME "bl32.bin" #define BL33_IMAGE_NAME "bl33.bin" #define TB_FW_CONFIG_NAME "fvp_tb_fw_config.dtb" +#define HW_CONFIG_NAME "hw_config.dtb" #if TRUSTED_BOARD_BOOT #define TRUSTED_BOOT_FW_CERT_NAME "tb_fw.crt" @@ -56,6 +57,10 @@ static const io_file_spec_t sh_file_spec[] = { .path = TB_FW_CONFIG_NAME, .mode = FOPEN_MODE_RB }, + [HW_CONFIG_ID] = { + .path = HW_CONFIG_NAME, + .mode = FOPEN_MODE_RB + }, #if TRUSTED_BOARD_BOOT [TRUSTED_BOOT_FW_CERT_ID] = { .path = TRUSTED_BOOT_FW_CERT_NAME, |