mirror of
https://github.com/CTCaer/switch-l4t-atf.git
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1c75d5dfb0
The current fiptool packs all the images without any padding between them. So, the offset to each image has no alignment. This is not efficient, for example, when the FIP is read from a block-oriented device. For example, (e)MMC is accessed by block-addressing. The block size is 512 byte. So, the best case is each image is aligned by 512 byte since the DMA engine can transfer the whole of the image to its load address directly. The worst case is the offset does not have even DMA-capable alignment (this is where we stand now). In this case, we need to transfer every block to a bounce buffer, then do memcpy() from the bounce buffer to our final destination. At least, this should work with the abstraction by the block I/O layer, but the CPU-intervention for the whole data transfer makes it really slow. This commit adds a new option --align to the fiptool. This option, if given, requests the tool to align each component in the FIP file by the specified byte. Also, add a new Make option FIP_ALIGN for easier access to this feature; users can give something like FIP_ALIGN=512 from the command line, or add "FIP_ALIGN := 512" to their platform.mk file. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
146 lines
4.7 KiB
Makefile
146 lines
4.7 KiB
Makefile
#
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# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of ARM nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# Default, static values for build variables, listed in alphabetic order.
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# Dependencies between build options, if any, are handled in the top-level
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# Makefile, after this file is included. This ensures that the former is better
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# poised to handle dependencies, as all build variables would have a default
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# value by then.
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# The AArch32 Secure Payload to be built as BL32 image
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AARCH32_SP := none
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# The Target build architecture. Supported values are: aarch64, aarch32.
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ARCH := aarch64
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# Determine the version of ARM CCI product used in the platform. The platform
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# port can change this value if needed.
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ARM_CCI_PRODUCT_ID := 400
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# Determine the version of ARM GIC architecture to use for interrupt management
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# in EL3. The platform port can change this value if needed.
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ARM_GIC_ARCH := 2
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# Flag used to indicate if ASM_ASSERTION should be enabled for the build.
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ASM_ASSERTION := 0
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# Base commit to perform code check on
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BASE_COMMIT := origin/master
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# By default, consider that the platform may release several CPUs out of reset.
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# The platform Makefile is free to override this value.
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COLD_BOOT_SINGLE_CPU := 0
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# For Chain of Trust
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CREATE_KEYS := 1
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# Build flag to include AArch32 registers in cpu context save and restore during
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# world switch. This flag must be set to 0 for AArch64-only platforms.
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CTX_INCLUDE_AARCH32_REGS := 1
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# Include FP registers in cpu context
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CTX_INCLUDE_FPREGS := 0
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# Debug build
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DEBUG := 0
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# Build platform
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DEFAULT_PLAT := fvp
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# By default, use the -pedantic option in the gcc command line
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DISABLE_PEDANTIC := 0
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# Flag to enable Performance Measurement Framework
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ENABLE_PMF := 0
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# Flag to enable PSCI STATs functionality
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ENABLE_PSCI_STAT := 0
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# Flag to enable runtime instrumentation using PMF
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ENABLE_RUNTIME_INSTRUMENTATION := 0
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# Build flag to treat usage of deprecated platform and framework APIs as error.
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ERROR_DEPRECATED := 0
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# Byte alignment that each component in FIP is aligned to
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FIP_ALIGN := 0
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# Default FIP file name
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FIP_NAME := fip.bin
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# Default FWU_FIP file name
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FWU_FIP_NAME := fwu_fip.bin
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# For Chain of Trust
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GENERATE_COT := 0
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# Flag to enable new version of image loading
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LOAD_IMAGE_V2 := 0
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# NS timer register save and restore
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NS_TIMER_SWITCH := 0
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# Build PL011 UART driver in minimal generic UART mode
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PL011_GENERIC_UART := 0
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# By default, consider that the platform's reset address is not programmable.
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# The platform Makefile is free to override this value.
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PROGRAMMABLE_RESET_ADDRESS := 0
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# Flag used to choose the power state format viz Extended State-ID or the
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# Original format.
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PSCI_EXTENDED_STATE_ID := 0
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# By default, BL1 acts as the reset handler, not BL31
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RESET_TO_BL31 := 0
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# For Chain of Trust
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SAVE_KEYS := 0
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# Whether code and read-only data should be put on separate memory pages. The
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# platform Makefile is free to override this value.
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SEPARATE_CODE_AND_RODATA := 0
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# SPD choice
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SPD := none
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# Flag to introduce an infinite loop in BL1 just before it exits into the next
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# image. This is meant to help debugging the post-BL2 phase.
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SPIN_ON_BL1_EXIT := 0
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# Flags to build TF with Trusted Boot support
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TRUSTED_BOARD_BOOT := 0
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# Build option to choose whether Trusted firmware uses Coherent memory or not.
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USE_COHERENT_MEM := 1
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# Build verbosity
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V := 0
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