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>
If /chosen was missing, chosen_offset would never get updated with the new
/chosen node. This would cause fdt_setprop_u32 to fail. This patch fixes
this by setting chosen_offset. In addition, log any errors from setting
boot-hartid as well.
Fixes: 5370478d1c ("riscv: Add boot hartid to device tree")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
At present there is only one Kconfig option CONFIG_SIFIVE_CLINT to
control the enabling of SiFive CLINT support in both SPL (M-mode)
and U-Boot proper (S-mode). So for a typical SPL config that the
SiFive CLINT driver is enabled in both SPL and U-Boot proper, that
means the S-mode U-Boot tries to access the memory-mapped CLINT
registers directly, instead of the normal 'rdtime' instruction.
This was not a problem before, as the hardware does not forbid the
access from S-mode. However this becomes an issue now with OpenSBI
commit 8b569803475e ("lib: utils/sys: Add CLINT memregion in the root domain")
that the SiFive CLINT register space is protected by PMP for M-mode
access only. U-Boot proper does not boot any more with the latest
OpenSBI, that access exceptions are fired forever from U-Boot when
trying to read the timer value via the SiFive CLINT driver in U-Boot.
To solve this, we need to split current SiFive CLINT support between
SPL and U-Boot proper, using 2 separate Kconfig options.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
This reverts commit bc8bbb77f7.
This commit breaks U-Boot booting on SiFive Unleashed board, as
there is no such CSR on U54 core.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Testing showed that disabling AI while leaving PLL1 enabled disabled the
aisram. This suggests that AI is a more appropriate clock for that ram
bank.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
This is more consistent with the naming of other ram banks, and matches
what Linux is doing.
Reported-by: Damien Le Moal <Damien.LeMoal@wdc.com>
Signed-off-by: Sean Anderson <seanga2@gmail.com>
These devices are necessary for the clock driver, which is required by the
sram driver, to run pre-relocation.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Add a callback harts_early_init() to start.S to allow different riscv
hart perform setup code for each hart as early as possible. Since all
the harts enter the callback, they must be able to run the same
setup.
Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add support for stack protector for UBOOT, SPL, and TPL
as well as new pytest for stackprotector
Signed-off-by: Joel Peshkin <joel.peshkin@broadcom.com>
Adjust UEFI build flags.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
The uart nodes already provide <clocks> property for the driver to
dynamically calculate the correct clock frequency. There is no need
to keep the hard-coded <clock-frequency> property.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
Tested-by: Padmarao Begari <padmarao.begari@microchip.com>
Provide optimized versions of memcpy(), memmove(), memset() copied from
the Linux kernel.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
The value returned by setjmp must be nonzero. If zero is passed as
parameter it must be replaced by 1.
This patch reduces the code size a bit.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
In preparation to add SiFive Unmatched board support, let's rename
the existing fu540 board to unleashed.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This adds the necessary bindings. Most of them are already there.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Acked-by: Rick Chen <rick@andestech.com>
The _SUPPORT suffix is from an earlier time and interferes with use of
the CONFIG_IS_ENABLED() macro. Rename the option to drop the suffix.
Tidy up the TODO that prompted this.
Signed-off-by: Simon Glass <sjg@chromium.org>
This device has four IOs connected to the SPI flash. Add the appropriate
bindings.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Liang <ycliang@andestech.com>
phys_addr_t and phys_size_t are currently defined as `unsigned long`,
but RV32 supports 34-bit physical address, hence both phys_addr_t and
phys_size_t should be defined to 64-bit using `unsigned long long`.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
When testing QEMU RISC-V 'virt' machine with a 2 GiB memory
configuration, it was discovered gd->ram_top is assigned to
value zero in setup_dest_addr().
While gd->ram_top should not be declared as type `unsigned long`,
which will be updated in a future patch, the current logic in
board_get_usable_ram_top() can be updated to cover both 64-bit
and 32-bit RISC-V.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
