At some point back in 2018 prior_stage_fdt_address and OF_PRIOR_STAGE got
introduced, in order to support a DTB handed over by an earlier stage boo
loader. However we have another option in the Kconfig (OF_BOARD) which has
identical semantics.
On RISC-V some of the boards pick up the DTB from a1 and copy it in their
private gd_t. Apart from that they copy it to prior_stage_fdt_address, if
the Kconfig option is selected, which is unnecessary.
So let's switch the config option for those boards to OF_BOARD and define
the required board_fdt_blob_setup() for them.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reserved memory nodes can have additional flags. Support reading and
writing these flags to ensure that reserved memory nodes can be properly
parsed and emitted.
This converts support for the existing "no-map" flag to avoid extending
the argument list for fdtdec_add_reserved_memory() to excessive length.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reserved memory nodes can have a compatible string list to identify the
type of reserved memory that they represent. Support specifying an
optional compatible string list when creating these nodes.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Add a host Kconfig for OF_LIBFDT. With this we can use
CONFIG_IS_ENABLED(OF_LIBFDT) directly in the tools build, so drop the
unnecessary indirection.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
If Coherence Manager were not set in the beginning,
u-boot-spl would sometimes fail to boot to u-boot proper.
Enable CM and I/D cache at the same time in harts_early_init
Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Provide sysreset driver using the SBI system reset extension.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Samuel Holland <samuel@sholland.org>
Add the System Reset Extension and the Hart State Management Extension
definitions.
Add missing RFENCE Extension enum values.
The SBI 0.1 extension constants are needed for the sbi command. Remove
an #ifdef.
Cf. https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The no-map property is wrongly skipped if a no-map reserved memory
node follows one without that property. Fix this by not remembering
the absence of a no-map property across loop iterations.
Fixes: d4ea649f17 ("riscv: Provide a mechanism to fix DT for reserved memory")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.
Reviewed-by: Rick Chen <rick@andestech.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Leo <ycliang@andestech.com>
Cc: Rick Chen <rick@andestech.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
We usually use a space in function declaration, rather than a tab.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Invokes the common cache_init function to initialize ccache.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
The enable_caches is a generic hook for architecture-implemented, we
define this function to enable composable cache of sifive platforms.
In sifive_cache, it invokes the generic cache_enable interface of cache
uclass to execute the relative implementation in SiFive ccache driver.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
The enable_caches is a generic hook for architecture-implemented, we
leverage this function to enable caches for RISC-V
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
To make analyzing exceptions easier output the code that leads to it.
We already do the same on the ARM platform.
Here is an example:
=> exception ebreak
Unhandled exception: Breakpoint
EPC: 000000008ff5d50e RA: 000000008ff5d62c TVAL: 0000000000000000
EPC: 000000008020b50e RA: 000000008020b62c reloc adjusted
Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)
To disassemble the code we can use the decodecode script:
$ echo 'Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)' | \
CROSS_COMPILE=riscv64-linux-gnu- scripts/decodecode
Code: 2785 0693 07a0 dce3 fef6 47a5 d563 00e7 (9002)
All code
========
0: 2785 addiw a5,a5,1
2: 07a00693 li a3,122
6: fef6dce3 bge a3,a5,0xfffffffffffffffe
a: 47a5 li a5,9
c: 00e7d563 bge a5,a4,0x16
10:* 9002 ebreak <-- trapping instruction
...
Code starting with the faulting instruction
===========================================
0: 9002 ebreak
...
As it is not always clear if the first 16 bits are at the start or in the
middle of a 32bit instruction it may become necessary to strip the first
u16 from the output before calling decodecode to get the correct
disassembled code.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <trini@konsulko.com>
We move the SYS_CACHE_SHIFT_N options from arch/arm/Kconfig to
arch/Kconfig, and introduce SYS_CACHE_SHIFT_4 to provide a size of 16.
Introduce select statements for other architectures based on current
usage. For MIPS, we take the existing arch-specific symbol and migrate
to the generic symbol. This lets us remove a little bit of otherwise
unused code.
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Anup Patel <anup.patel@wdc.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Leo <ycliang@andestech.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Add the Linux magic to the EFI file header to allow running our test
programs with GRUB's linux command.
MajorImageVersion = 1 indicates a kernel that can consume the
EFI_LOAD_FILE2_PROTOCOL. This allows to dump the GRUB provided intird with
our initrddump.efi tool.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Rename these options so that CONFIG_IS_ENABLED can be used with them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
This patch reverts the following commits:
- 4b4159d0f3 ("riscv: dts: add dts for unmatched rev1")
- ffe9a394df ("board: sifive: support spl multi-dtb on unmatched board")
We won't plan to support unmatched that the revision below 3 in u-boot,
so they can be dropped because they might be useless.
Changed in v2:
- rebase codebase to the latest master branch
Signed-off-by: Zong Li <zong.li@sifive.com>
Suggested-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
If force_reloc flag is not set and booti is called for an address
ouside RAM (i. e. QSPI NOR flash), we should honor that and not try
to force relocation in a bogus fashion.
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Previous device tree for OpenPiton emits a warning during compilation.
This commit fixes the previous warning adds dts to the OpenPiton RISC-V
board and added the device tree to MAINTAINER file.
Signed-off-by: Tianrui Wei <tianrui-wei@outlook.com>
Reported-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
The difference between unmatched rev3 and rev1 is DDR timing, the rev3
uses 1866 MT/s for 16GiB, and rev1 uses 2133 MT/s for 8GiB.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
There are different DDR parameter settings for different board
revisions. Add a new interface to get the PCB revision to determine
which DT should be selected at runtime.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Enable SPL_I2C_SUPPORT for fu740, and add 'u-boot,dm-spl' property in
i2c node.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This patch adds openpiton-riscv64 SOC support. In particular, this
board supports a standard bootflow through zsbl->u-boot SPL->
opensbi->u-boot proper->Linux. There are separate defconfigs for
building u-boot SPL and u-boot proper
Signed-off-by: Tianrui Wei <tianrui-wei@outlook.com>
Signed-off-by: Jonathan Balkind <jbalkind@ucsb.edu>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Linux has had some stability issues when using AISRAM with a different
frequency from SRAM. Mirror their change here now that we relocate into
AISRAM.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Current logic in riscv_get_ipi() for Andes PLICSW does not look
correct. The mask to test IPI pending bits for a hart should be
left shifted by (8 * gd->arch.boot_hart), just the same as what
is done in riscv_send_ipi().
Fixes: 8b3e97badf ("riscv: add functions for reading the IPI status")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Tested-by: Rick Chen <rick@andestech.com>
At present the AE350 SPL defconfig is using OF_PRIOR_STAGE. The
intention was to use gdb to load device tree before running U-Boot
SPL/proper from RAM. When we switch to OF_SEPARATE we will have to
use our own DT but without "u-boot,dm-spl" in several essential
nodes, SPL does not boot.
Let's add all the required "u-boot,dm-spl" for SPL config.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
All the device nodes that refer to plic0 as their interrupt parent
have 2 cells encoded in their interrupts property, but plic0 only
provides 1 cell in #interrupt-cells which is incorrect.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
PLIC nodes don't have child nodes, so #address-cells is not needed.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
There are two spaces before "debug' in bootargs. Drop one.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
The SPDX license header is currently missing. Add one.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Add defconfig and board support for HiFive Unmatched.
Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Add dts support for fu740. The HiFive Unmatched support is based on
fu740 cpu and drivers in following patch set.
Signed-off-by: Green Wan <green.wan@sifive.com>
[greentime.hu: set fu740 speed to 1.2GHz]
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
This commit does the same thing as Linux commit 33def8498fdd.
Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.
Remove the quote operator # from compiler_attributes.h __section macro.
Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Now that we have switched to binman to generate u-boot.itb for all
RISC-V boards, USE_SPL_FIT_GENERATOR is no longer needed and can
be dropped.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use the new BINMAN_STANDALONE_FDT option for AE350 based SPL defconfigs,
so that binman is now used to generate u-boot.itb.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>
By utilizing the newly introduced BINMAN_STANDALONE_FDT option, along
with a new dedicated device tree source file for the QEMU virt target
used for binman only, we can now use binman to generate u-boot.itb.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Sort the RISC-V DTS build targets by their Kconfig target names in
alphabetical order.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present SiFive Unleashed board uses the Makefile to create the FIT,
using USE_SPL_FIT_GENERATOR, which is deprecated as per the Makefile
warning. Update to use binman instead.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently all assembly optimized implementation of memory routines
show up at the top level of the RISC-V architecture Kconfig menu.
Let's group them together into a submenu.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
At present U-Boot SPL fails to boot on SiFive Unleashed board, due
to a load address misaligned exception happens when loading the FIT
image in spl_load_simple_fit(). The exception happens in memmove()
which is called by fdt_splice_().
Commit 8f0dc4cfd1 introduces an assembly version of memmove but
it does take misalignment into account (it checks if length is a
multiple of machine word size but pointers need also be aligned).
As a result it will generate misaligned load/store for the majority
of cases and causes significant performance regression on hardware
that traps misaligned load/store and emulate them using firmware.
The current behaviour of memcpy is that it checks if both src and
dest pointers are co-aligned (aka congruent modular SZ_REG). If
aligned, it will copy data word-by-word after first aligning
pointers to word boundary. If src and dst are not co-aligned,
however, byte-wise copy will be performed.
This patch was taken from the Linux kernel patch [1], which has not
been applied at the time being. It fixes the memmove and optimises
memcpy for misaligned cases. It will first align destination pointer
to word-boundary regardless whether src and dest are co-aligned or
not. If they indeed are, then wordwise copy is performed. If they
are not co-aligned, then it will load two adjacent words from src
and use shifts to assemble a full machine word. Some additional
assembly level micro-optimisation is also performed to ensure more
instructions can be compressed (e.g. prefer a0 to t6).
With this patch, U-Boot boots again on SiFive Unleashed board.
[1] https://patchwork.kernel.org/project/linux-riscv/patch/20210216225555.4976-1-gary@garyguo.net/
Fixes: 8f0dc4cfd1 ("riscv: assembler versions of memcpy, memmove, memset")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
