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In order to support 32-bit guests move the start address to a 4MB
allignment. As 64-bit kernels have a requirement on being 2MB alligned
let's just make this the default for both 32 and 64 bit kernels.
Signed-off-by: Alistair Francis <[email protected]>
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In order to support 32-bit guests move the start address to a 4MB
allignment. As 64-bit kernels have a requirement on being 2MB alligned
let's just make this the default for both 32 and 64 bit kernels.
Signed-off-by: Alistair Francis <[email protected]>
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The QEMU virt machine can be either 32 or 66 bit. Don't hard code the
CPU bit length and instead let the compiler determine it.
Signed-off-by: Alistair Francis <[email protected]>
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Currently, only hart 1 is enabled for fu540 platform to support U-boot.
Introduce a compile time FU540_ENABLED_HART_MASK option so that specific
harts can be selected for booting. As fu540 is a multicore, we should
boot all cores by default except hart 0.
Signed-off-by: Atish Patra <[email protected]>
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Create commented template files to use as a base for new platforms
support implementation.
Signed-off-by: Damien Le Moal <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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It is not necessary that platform has MMIO-based timer value
register. It can also have some custom (implementation specific)
CSR for timer value.
This patch renames SBI_PLATFORM_HAS_MMIO_TIMER_VALUE to
SBI_PLATFORM_HAS_TIMER_VALUE to imply "platform timer value"
instead of "mmio timer value".
Signed-off-by: Anup Patel <[email protected]>
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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 <[email protected]>
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The hartid parameter in IRQCHIP callbacks of sbi_platform
is not required because current hartid can be determined
using sbi_current_hartid() API.
Signed-off-by: Anup Patel <[email protected]>
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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 <[email protected]>
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We simplify early_init() and final_init() callbacks of sbi_platform
by removing "hartid" parameter.
Signed-off-by: Anup Patel <[email protected]>
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The Kendryte k210 board initial loader does not provide a device tree
for the firmware and subsequent payload. Add the k210.dts device tree
description file to solve this. This file describes only the SoC core
components: CPUs, memory and PLIC.
Automatically compile and add this file to the firmware generated
using the FW_PAYLOAD_FDT_PATH configuration parameter.
Signed-off-by: Damien Le Moal <[email protected]>
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Clear console input when intializing it.
Signed-off-by: Damien Le Moal <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Perform following DT updates.
1. Mask hart if mmu is not supported.
2. Add stdout-path under chosen node.
Signed-off-by: Atish Patra <[email protected]>
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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 <[email protected]>
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Signed-off-by: Atish Patra <[email protected]>
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Libfdt already have fdt.c and fdt.h.
Rename both fdt.* present in openSBI to tinyfdt.*
Signed-off-by: Atish Patra <[email protected]>
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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 <[email protected]>
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libfdt requires minimal libc support. Absoultely
minimum functions are added in libc.
Signed-off-by: Atish Patra <[email protected]>
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Simplify sysctl.c code to only the used CPU freqency function.
This reduces the size of the final firmware by 4KB.
Signed-off-by: Damien Le Moal <[email protected]>
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k210_console_putc() and k210_console_init() are local functions. Declare
them as static.
Signed-off-by: Damien Le Moal <[email protected]>
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The Kendryte K210 platform support was contributed by Damien
hence fix author name.
Signed-off-by: Anup Patel <[email protected]>
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We rename sifive/hifive_u540 platform support to sifive/fu540
to match the SoC name which is SiFive FU540 (as-per user manual).
In fact, we can expect no (or very minimal) board specific
quirks in sifive/fu540 platform support. These board specific
quirks can be turned on/off in-future using PLATFORM_<xyz>
make command-line option.
Signed-off-by: Anup Patel <[email protected]>
Signed-off-by: Atish Patra <[email protected]>
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We rename target_hart parameter of PMP platform callbacks to
hartid for clarity because the parameter represents current
hartid.
Signed-off-by: Anup Patel <[email protected]>
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Instead of having separate timer_init() hooks for cold and
warm boot, this patch updates struct sbi_platform to have just
one timer_init() hook. The type of boot (cold or warm) is now
a boolean flag parameter for the updated timer_init() hook.
Signed-off-by: Anup Patel <[email protected]>
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Instead of having separate ipi_init() hooks for cold and warm boot,
this patch updates struct sbi_platform to have just one ipi_init()
hook. The type of boot (cold or warm) is now a boolean flag parameter
for the updated ipi_init() hook.
Signed-off-by: Anup Patel <[email protected]>
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Instead of having separate irqchip_init() hooks for cold and
warm boot, this patch updates struct sbi_platform to have just
one irqchip_init() hook. The type of boot (cold or warm) is now
a boolean flag parameter for the updated irqchip_init() hook.
Signed-off-by: Anup Patel <[email protected]>
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Instead of having separate early_init() and final_init() hooks
for cold and warm boot, this patch updates struct sbi_platform
to have just one early_init() and one final_init() hook. The
type of boot (cold or warm) is now a boolean flag parameter for
the updated early_init() and final_init() hooks.
Signed-off-by: Anup Patel <[email protected]>
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The PLAT_HART_COUNT and PLAT_HART_STACK_SIZE are only used
by platform code so no need of exposing these to everyone
by adding it to platform-cppflags-y.
Signed-off-by: Anup Patel <[email protected]>
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The PLAT_NAME is used only in platform.c for all platforms hence
remove it.
Signed-off-by: Anup Patel <[email protected]>
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M mode is not expected to recieve any interrupts.
S mode interrupts shouldn't be enabled in M mode.
Signed-off-by: Atish Patra <[email protected]>
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As of now, uboot doesn't have support for SMP.
Moreover, unleashed board has a E51 hart which
doesn't not support S mode.
We should only boot only 1 non-zero hart.
Signed-off-by: Atish Patra <[email protected]>
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Pass S-Mode and M-mode context id separately to common warm init.
Signed-off-by: Atish Patra <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
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Unleashed doesn't have S mode for hart 0.
PLIC register base calculation is current wrong because of that.
Signed-off-by: Atish Patra <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
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Signed-off-by: Atish Patra <[email protected]>
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Conditionnally delegate page fault exceptions from M mode to S mode
based on the platform features.
Signed-off-by: Damien Le Moal <[email protected]>
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The math.h is not required anymore and it also gives
compile error for certain toolchains hence thsi patch
removes math.h include from kendryte/k210/sysctl.c.
Signed-off-by: Anup Patel <[email protected]>
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Use functions defined in sbi/riscv_asm.h.
Signed-off-by: Damien Le Moal <[email protected]>
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Booting now.
Signed-off-by: Damien Le Moal <[email protected]>
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Allow a platform to report its supported features in more details.
The new features defined are:
* SBI_PLATFORM_HAS_PMP
* SBI_PLATFORM_HAS_SCOUNTEREN
* SBI_PLATFORM_HAS_MCOUNTEREN
In addition, define the macro SBI_PLATFORM_DEFAULT_FEATURES as the set
of features that are generally expected to be supported by a Linux
capable platform.
Operations touching the features controlled with these falgs are not
executed if the platform does not set the corresponding feature flags.
Signed-off-by: Damien Le Moal <[email protected]>
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This patch renames "plat" to "platform" everywhere for better
readablility.
Signed-off-by: Anup Patel <[email protected]>
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