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2020-10-18firmware: Remove FW_PAYLOAD_FDT_PATH compile-time optionAnup Patel1-3/+0
The FW_PAYLOAD_FDT_PATH compile-time option is replaced by FW_FDT_PATH compile-time option which is more flexible and common across all OpenSBI firmwares. This patch removes FW_PAYLOAD_FDT_PATH and updates related documentation to use FW_FDT_PATH. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-10-18firmware: Add common FW_FDT_PATH compile-time optionAnup Patel1-0/+7
Currently, only FW_PAYLOAD has mechanism to embed external FDT using FW_PAYLOAD_FDT_PATH compile-time option. This patch adds a common FW_FDT_PATH compile-time option to embed external FDT for all OpenSBI firmwares (i.e FW_JUMP, FW_PAYLOAD, and FW_DYNAMIC). Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-06-05firmware: Remove FW_PAYLOAD_FDT and related documentationAnup Patel1-5/+0
Now that no platform is using FW_PAYLOAD_FDT mechanism, we remove related code from Makefile and related documentation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-05-10firmware: Add fw_dynamic firmwareAnup Patel1-0/+2
This patch provides first-cut implementation of fw_dynamic firmware. As compared to fw_jump and fw_payload, the fw_dynamic obtains next address, next mode and OpenSBI options from struct fw_dynamic_info. The previous booting stage can create struct fw_dynamic_info in memory and pass address of struct fw_dynamic_info in 'a2' register. Also, the struct fw_dynamic_info has versioning as well so changes to the struct fw_dynamic_info can be done in a backward compatible manner. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-04-09TOP: Allow building platform out-of-treeAnup Patel1-2/+2
This patch extends our current build-system for building platform sources which are not part of OpenSBI sources. For example: Let's say we have out-of-tree ABC platform sources. We place these sources under <XYZ>/ABC directory along with its config.mk and objects.mk. To build out-of-tree ABC platform from OpenSBI directory: $ make PLATFORM_DIR=<XYZ>/ABC OR $ make PLATFORM_DIR=<XYZ> PLATFORM=ABC To build out-of-tree ABC platform from <XYZ>/ABC directory: $ make PLATFORM_DIR=<XYZ>/ABC -C <path_to_opensbi> OR $ make PLATFORM_DIR=<XYZ> PLATFORM=ABC -C <path_to_opensbi> Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2019-03-29firmware: Introduce "options" in "struct sbi_scratch"Bin Meng1-0/+4
Introduce "options" in "struct sbi_scratch" and firmware can update it based on optional compile time flags before calling sbi_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-06firwmare: don't expand macros in FW_PAYLOAD_PATHAndreas Schwab1-2/+2
Signed-off-by: Andreas Schwab <schwab@suse.de>
2019-01-24all: Update copyright header in all filesAnup patel1-3/+3
This patch updates copyright header in all files as follows: 1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line 2. Change copyright year to 2019 for Western Digital Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-21payload: rename dummy payload to test payloadDamien Le Moal1-1/+1
Use a more neutral term more representative of this payload intent. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-21Makefile: Add support for device tree compilationDamien Le Moal1-0/+5
Add rules to compile dts files into dtb files using the device tree compiler (dtc). A platform can specify the DTS file to compile using the platform-dtb-y variable. The flattened device tree binary file to be used for building the final polatform firmware can be specified using the new FW_PAYLOAD_FDT firmware configuration option to point to the automatically compiled FDT file. Using the existing FW_PAYLOAD_FDT_PATH configuration option is still possible and will take precedence over the FW_PAYLOAD_FDT definition. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-21build: Introduce FW_PAYLOAD_ALIGNDamien Le Moal1-0/+4
The firmware payload offset defined by FW_PAYLOAD_OFFSET must specify a value large enough so the the payload does not overlap with the base firmware data, bss and text. For platforms without any strong requirement on the payload address, introduce the FW_PAYLOAD_ALIGN build parameter to automatically place the payload right after the base firmware at an address aligned with the defined value. Either FW_PAYLOAD_OFFSET or FW_PAYLOAD_ALIGN should be defined by a platform configuration. If both FW_PAYLOAD_OFFSET and FW_PAYLOAD_ALIGN are defined by a platform, FW_PAYLOAD_OFFSET has precedence and is used for building the final firmawre image. Using FW_PAYLOAD_ALIGN=4096 with the Kendryte platform rather than the abitrary FW_PAYLOAD_OFFSET=0x10000 value reduces the final firmware image size by about 20KB. Add a description of the FW_PAYLOAD_ALIGN configuration parameter in the fw_payload documentation file as well. And while at it, also fix various grammar and style issues in that file.. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-04Makefile: Use generic flags for the firmwareAlistair Francis1-7/+8
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2018-12-27firmware: Use dummy payload for FW_PAYLOADAnup Patel1-5/+8
We use recently added separate dummy payload for FW_PAYLOAD when FW_PAYLOAD_PATH is not specified. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21top: Rename "blob" to "firmware" everywhereAnup Patel1-0/+39
This patch renames "blob" to "firmware" everywhere for better and intutive naming. Signed-off-by: Anup Patel <anup@brainfault.org>
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