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We move andes directory to platform/generic as the necessary fdt
drivers are available, the users can enable the console, timer, ipi,
irqchip and reset devices by adding device tree nodes stated in the
docs/platform/andes-ae350.md.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Add domains_init platform hook for Andes AE350, users can add domain
description in device tree and select FDT domain support in Kconfig
to achieve system-level partitioning.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Move Andes PLICSW ipi device to fdt ipi framework, this patch is based
on Leo's modified IPI scheme on PLICSW.
Current IPI scheme uses bit 0 of pending reigster on PLICSW to send IPI
from hart 0 to hart 7, but bit 0 needs to be hardwired to 0 according
to spec. After some investigation, self-IPI seems to be seldom or never
used, so we re-order the IPI scheme to support 8 core platforms.
dts example (Quad-core AX45MP):
plicsw: interrupt-controller@e6400000 {
compatible = "andestech,plicsw";
reg = <0x00000000 0xe6400000 0x00000000 0x00400000>;
interrupts-extended = <&CPU0_intc 3
&CPU1_intc 3
&CPU2_intc 3
&CPU3_intc 3>;
interrupt-controller;
#address-cells = <2>;
#interrupt-cells = <2>;
};
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This patch adds fw_platform_init() to initialize ae350 platform.name
and platform.hart_count by parsing device tree.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Andes PLIC is compatible with plic driver. The PLIC base address and
number of source can be obtained by parsing the device tree.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Add ATCWDT200 as reset device of AE350 platform, this driver requires
SMU to program the reset vector registers before triggering WDT software
restart signal.
dts example:
smu@f0100000 {
compatible = "andestech,atcsmu";
reg = <0x00000000 0xf0100000 0x00000000 0x00001000>;
};
wdt: wdt@f0500000 {
compatible = "andestech,atcwdt200";
reg = <0x00000000 0xf0500000 0x00000000 0x00001000>;
interrupts = <3 4>;
interrupt-parent = <&plic0>;
clock-frequency = <15000000>;
};
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Since we can get the PLMT base address and timer frequency from
device tree, move plmt timer device to fdt timer framework.
dts example (Quad-core AX45MP):
cpus {
...
timebase-frequency = <0x3938700>;
...
}
soc {
...
plmt0@e6000000 {
compatible = "andestech,plmt0";
reg = <0x00 0xe6000000 0x00 0x100000>;
interrupts-extended = <&cpu0_intc 0x07
&cpu1_intc 0x07
&cpu2_intc 0x07
&cpu3_intc 0x07>;
};
...
}
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Andes UART is compatible with uart8250 driver. We can use
fdt_serial_init() as platform console init hook.
dts example:
serial0: serial@f0300000 {
compatible = "andestech,uart16550", "ns16550a";
reg = <0x00000000 0xf0300000 0x00000000 0x00001000>;
interrupts = <9 4>;
interrupt-parent = <&plic0>;
clock-frequency = <19660800>;
current-speed = <38400>;
reg-shift = <2>;
reg-offset = <32>;
reg-io-width = <4>;
no-loopback-test = <1>;
};
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This patch makes andes platform name and version can be set in
menuconfig interface.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The boot-time cache operations have been handled by U-boot SPL, so we
can drop duplicate code.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The options defined in config.mk can be specified in objects.mk of each
platform so let us remove config.mk from all platforms.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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We update FDT support makefile to use kconfig for enabling/disabling.
To avoid compilation errors, we also enable FDT for each platform.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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We update irqchip drivers makefile to use kconfig for enabling/disabling
drivers. To avoid compile errors, we also enable appropriate irqchip
drivers for each platform.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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We update serial drivers makefile to use kconfig for enabling/disabling
drivers. To avoid compile errors, we also enable appropriate serial
drivers for each platform.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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We extend the top-level makefile to allow kconfig based configuration
for each platform where each platform has it's own set of configs with
"defconfig" being the default config.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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reg-offset property is used for offset to apply to the mapbase
from the start of the registers in 8250 UART. In Linux kernel,
it has been handled in 8250 UART driver.
dt-bindings:
<linux>/Documentation/devicetree/bindings/serial/8250.yaml
Signed-off-by: Zong Li <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This simply adds an helper to get fdt address which is more explicit than
sbi_scratch_thishart_arg1_ptr.
Signed-off-by: Alexandre Ghiti <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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plicsw_ipi_sync() is a forward declaration but without the actual
implementation. Drop it.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This is not used anywhere. Drop it.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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- %s/CLINT/PLICSW
- replace '.' with a space
- add a space around * in plicsw_cold_ipi_init()
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Instead of having ipi_send() and ipi_clear() callbacks in
platform operations, it will be much simpler for ipi driver
to directly register these operations as a device to sbi_ipi
implementation.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
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Instead of having timer_value(), timer_event_start(), and
timer_event_stop() callbacks in platform operations, it will
be much simpler for timer driver to directly register these
operations as device to the sbi_timer implementation.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
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Instead of having console_putc() and console_getc() callbacks in
platform operations, it will be much simpler for console driver to
directly register these operations as device to the sbi_console
implementation.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
Reviewed-by: Xiang W <[email protected]>
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We had added args pointer in ecall handler to ensure that ecall
handler only implements functionality and does not deal with
SBI calling convention. This also helped us to keep SBI calling
convention related code in one place at sbi_ecall_handler().
The Keystone Enclavce project needs access to the trap regsiters
in their ecall handler so that they can context switch enclaves
in custom SBI calls. To help the Keystone Enclave project, we
replace the args pointer in ecall handler parameter with a const
pointer to trap registers.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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Few platforms have dummy system reset functions so let's remove
these dummy system reset functions to allow generic code deal
with it in the right way.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Alistair Francis <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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This patch contains the following AE350 specific SBIs:
- get mcache_ctl status
- get mmisc_ctl status
- set mcache_ctl status
- set mmisc_ctl status
- I-cache operation
- D-cache operation
- enable/disable L1-I-cache prefetch
- enable/disable L1-D-cache prefetch
- enable/disable non-blocking load store
- enable/disable write-around
Signed-off-by: Nylon Chen <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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We add AE350 platform specific SBI handler to implement
AE350 specific SBI calls.
Signed-off-by: Nylon Chen <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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We extend all PLIC functions to have a "struct plic_data *"
parameter pointing to PLIC details. This allows platforms to
use these functions for multiple PLIC instances.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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The "target_hart" and "hart_count" parameters of PLIC cold and
warm init functions are only used for sanity checks and not
required in PLIC initialization.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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We can achieve shutdown, cold reboot, and warm reboot using just
one sbi_platform callback so we combine system_reboot() and
system_shutdown() callbacks into one system_reset() callback.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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The default (usually last) PMP region provides S-mode access to
complete memory range not covered by other PMP regions.
Currently, the default PMP region is described as platform specific
PMP region which is not appropriate because all platforms need it
and default PMP region should be part of generic library.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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FDT helper file contain both fdt fixup and parsing functions.
Split the fixup related functions to a separate file for a better code
organization.
Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Platform andes/ae350, ariane-fpga, qemu/virt and sifive/fu540 codes
have been updated to call this general DT fix-up helper.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This calls fdt_reserved_memory_fixup() helper in the platform's
final_init() routine.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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Now that we have a dedicated fdt_helper.c file for DT releated
helper routines, move plic_fdt_fixup() codes from plic.c to
fdt_helper.c and rename it to fdt_plic_fixup() at the same time,
to keep name consistency in the same file.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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Adjust the order of include header files in alphabetical order in
platform codes. Also remove unnecessary inclusions.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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As of today all platforms use 8KB of per-HART stack hence there is
no need for each platform to define its own macro or use the magic
number. Create one macro for all platforms. Platform still can use
its own version if needed.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The sbi_current_hartid() being a regular function is quite
expensive because for callers it is a function call instead
of a direct CSR read. This patch converts sbi_current_hartid()
into a macro in riscv_asm.h.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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The disabled_hard_mask in sbi_platform is only 64bits wide so we
cannot disable a HART with HARTID > 63. To tackle this, we remove
disabled_hart_mask and replace it with hart_disabled() platform
callback.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This commit provides basic support for the AE350 platform.
Signed-off-by: Zong Li <[email protected]>
Signed-off-by: Nylon Chen <[email protected]>
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