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2019-06-19platform: Move platform common to lib/utils.Atish Patra32-6870/+0
Currently, platform/common contains platform/non-platform specific common minimal drivers and libraries. This is helpful is all platforms are built within opensbi framework. Move them to lib/utils so that any external platform code also can reuse the minimalistic drivers or other common libraries. This patch doesn't introduce any functional changes. Signed-off-by: Atish Patra <atish.patra@wdc.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-06-19lib: Include helper libc functions directly in libsbi.Atish Patra6-232/+3
libsbi needs some of the custom libc functions. It should be directly included in libsbi instead of platform specific libraries. Signed-off-by: Atish Patra <atish.patra@wdc.com> Acked-by: Anup Patel <anup.patel@wdc.com>
2019-04-25platform/common/libfdt: fix unnecessary multiple inclusionsXiang Wang1-1/+1
Signed-off-by: Xiang Wang <wxjstz@126.com>
2019-04-24all: run clang-format and update checked-in filesOlof Johansson13-139/+108
Noisy commit, no functional changes. Generated with an current upstream clang-format and: clang-format -i $(find . -name \*.[ch]) Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-24all: Annotate some tables to have clang-format leave them aloneOlof Johansson2-0/+8
One of the shortcomings of clang-format is that it doesn't allow for aligned define tables, which is used for a number of constants. Add annotation to disable the automatic formatting where needed. Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-24libfdt: don't try to clang-formatOlof Johansson1-0/+1
Add an empty clang-format to disable reformatting of imported code and make it easier to merge in upstream changes of that project over time. Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-09TOP: Allow building platform out-of-treeAnup Patel1-1/+1
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>
2019-03-18platform: plic: Fix comments of programming the interrupt enable registerBin Meng1-1/+2
The codes that currently program the interrupt enable register for S-mode disagrees with what the comments say. Fix the comments. While we are here, add one line comment to describe what is done for M-mode too. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-14platform: plic: Bypass interrupt ID 0's priority programmingBin Meng1-1/+1
Per PLIC spec, interrupt ID 0 is defined to mean "no interrupt". We should bypass it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-14platform: plic: Fix plic_set_priority()Bin Meng1-1/+4
At present plic_set_priority() ignores the 'source' and the priority register to be programmed is constant. Fix it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-05lib:platform: Fix sbi_getc return type.Atish Patra4-6/+6
As per the current SBI specification, sbi_getc should return an int instead of char. In case of FIFO is empty, return -1 as per the specification. Reported-by: Sergi Granell <xerpi.g.12@gmail.com> Suggested-by:Thadeu Lima de Souza Cascardo <cascardo@cascardo.eti.br> Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-02-08platform: clint: Allow running on 32-bit systemsAlistair Francis1-0/+24
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2019-01-24all: Update copyright header in all filesAnup patel18-54/+54
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>
2019-01-23include: Rename ipi_inject() to ipi_send() for sbi_platformAnup Patel2-2/+2
For better naming, we rename ipi_inject() to ipi_send() in struct sbi_platform. We also replace term "inject" with "send" in all related places. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove target_hart and hartid parameter from TIMER callbacksAnup Patel2-6/+12
The target_hart and hartid paramter of TIMER callbacks is not required because it always current hartid which can be obtained using sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23lib: Remove source_hart and hartid parameter from IPI callbacksAnup patel2-13/+14
The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-18platform: Fix compile error caused by standard includesAnup Patel5-15/+60
Avoid using standard includes namely stdint.h, string.h, stdlib.h, etc. All standard include except stddef.h give compilation error due to differences in RISC-V toolchain configuration. Typically, the compilation error is related to "gnu-stubs-lp64.h". This patch fixes compile error caused by standard includes by providing substitutes of definetions provided by standard includes wherever required. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-18platform: No need to pass context id for plic fixup.Atish Patra2-7/+8
PLIC DT entry fixup can be done by comparing external interrupt number instead of context id. No need to invoke fixup for each plic context. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18platform: Remove string functions from tinyfdt.cAtish Patra2-26/+9
There are couple of string function defined in platform code. We no longer need them as we can directly link minimal libc. Every platform required to inclde this as PLIC driver required libc functions. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18platform: Include libfdt & libc.Atish Patra1-0/+1
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18platform: Rename fdt.c to tinyfdt.cAtish Patra4-2/+2
Libfdt already have fdt.c and fdt.h. Rename both fdt.* present in openSBI to tinyfdt.* Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18platform: Add libfdt support.Atish Patra17-0/+5875
Some of the platform (i.e. SiFive FU540) requires Device Tree modification before it is passed to higher stages. Add libfdt support now to help this process. Libfdt should only be included per platform basis. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-01-18platform: Add minimal libc support.Atish Patra2-0/+185
libfdt requires minimal libc support. Absoultely minimum functions are added in libc. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2018-12-21Disable all interrupts during warm irqchip init.Atish Patra1-1/+6
M mode is not expected to recieve any interrupts. S mode interrupts shouldn't be enabled in M mode. Signed-off-by: Atish Patra <atish.patra@wdc.com>
2018-12-21Fix plic warm init in common code.Anup Patel2-27/+25
Unleashed doesn't have S mode for hart 0. PLIC register base calculation is current wrong because of that. Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21top: Rename "plat" to "platform" everywhereAnup Patel14-0/+993
This patch renames "plat" to "platform" everywhere for better readablility. Signed-off-by: Anup Patel <anup.patel@wdc.com>
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