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samples: openamp: Add support for mps2_an521

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AN521 is a dual core FPGA on MPS2+ with both cores are CM33. Add openAMP
to support on it.

Core 0 is primary core, it runs as master, core 1 is remote, it runs
as slave.

Signed-off-by: Karl Zhang <karl.zhang@linaro.org>
This commit is contained in:
Karl Zhang 2019-07-15 18:39:41 +08:00 • committed by Kumar Gala
commit 88c3679933
7 changed files with 55 additions and 3 deletions
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7
samples/subsys/ipc/openamp/CMakeLists.txt
View file

@ -5,8 +5,13 @@ cmake_minimum_required(VERSION 3.13.1)
# SPDX-License-Identifier: Apache-2.0
#
set(REMOTE_ZEPHYR_DIR ${CMAKE_CURRENT_BINARY_DIR}/openamp_remote-prefix/src/openamp_remote-build/zephyr)
if("${BOARD}" STREQUAL "lpcxpresso54114_m4")
set(BOARD_REMOTE "lpcxpresso54114_m0")
elseif("${BOARD}" STREQUAL "mps2_an521")
set(QEMU_EXTRA_FLAGS "-device;loader,file=${REMOTE_ZEPHYR_DIR}/zephyr.elf")
set(BOARD_REMOTE "mps2_an521_nonsecure")
else()
message(FATAL_ERROR "${BOARD} was not supported for this sample")
endif()
@ -28,7 +33,7 @@ ExternalProject_Add(
INSTALL_COMMAND "" # This particular build system has no install command
CMAKE_CACHE_ARGS -DBOARD:string=${BOARD_REMOTE}
CMAKE_CACHE_ARGS -DDTC_OVERLAY_FILE:string=${DTC_OVERLAY_FILE}
BUILD_BYPRODUCTS "${CMAKE_CURRENT_BINARY_DIR}/openamp_remote-prefix/src/openamp_remote-build/zephyr/zephyr.bin"
BUILD_BYPRODUCTS "${REMOTE_ZEPHYR_DIR}/zephyr.bin"
# NB: Do we need to pass on more CMake variables?
BUILD_ALWAYS True
)

8
samples/subsys/ipc/openamp/README.rst
View file

@ -18,6 +18,14 @@ Building the application for lpcxpresso54114_m4
:board: lpcxpresso54114_m4
:goals: debug
Building the application for mps2_an521
***************************************
.. zephyr-app-commands::
:zephyr-app: samples/subsys/ipc/openamp
:board: mps2_an521
:goals: debug
Open a serial terminal (minicom, putty, etc.) and connect the board with the
following settings:

20
samples/subsys/ipc/openamp/mps2_an521.overlay Normal file
View file

@ -0,0 +1,20 @@
/*
* Copyright (c) 2019 Linaro Limited
*
* SPDX-License-Identifier: Apache-2.0
*/
/ {
chosen {
/*
* shared memory reserved for the inter-processor communication
*/
zephyr,ipc_shm = &sramx;
zephyr,ipc = &mhu0;
};
sramx: memory@28180000 {
compatible = "mmio-sram";
reg = <0x28180000 0x8000>;
};
};

4
samples/subsys/ipc/openamp/remote/CMakeLists.txt
View file

@ -4,7 +4,9 @@ cmake_minimum_required(VERSION 3.13.1)
#
# SPDX-License-Identifier: Apache-2.0
#
if(("${BOARD}" STREQUAL "lpcxpresso54114_m0"))
if(("${BOARD}" STREQUAL "lpcxpresso54114_m0")
OR "${BOARD}" STREQUAL "mps2_an521_nonsecure")
message(INFO " ${BOARD} compile as slave in this sample")
else()
message(FATAL_ERROR "${BOARD} was not supported for this sample")

6
samples/subsys/ipc/openamp/remote/src/main.c
View file

@ -73,9 +73,15 @@ static u32_t virtio_get_features(struct virtio_device *vdev)
static void virtio_notify(struct virtqueue *vq)
{
#if defined(CONFIG_SOC_MPS2_AN521)
u32_t current_core = sse_200_platform_get_cpu_id();
ipm_send(ipm_handle, 0, current_core ? 0 : 1, 0, 1);
#else
u32_t dummy_data = 0x00110011; /* Some data must be provided */
ipm_send(ipm_handle, 0, 0, &dummy_data, sizeof(dummy_data));
#endif /* #if defined(CONFIG_SOC_MPS2_AN521) */
}
struct virtio_dispatch dispatch = {

2
samples/subsys/ipc/openamp/sample.yaml
View file

@ -4,7 +4,7 @@ sample:
name: OpenAMP example integration
tests:
sample.ipc.openamp:
platform_whitelist: lpcxpresso54114_m4
platform_whitelist: lpcxpresso54114_m4 mps2_an521
tags: ipm
harness: console
harness_config:

11
samples/subsys/ipc/openamp/src/main.c
View file

@ -84,9 +84,15 @@ static void virtio_set_features(struct virtio_device *vdev,
static void virtio_notify(struct virtqueue *vq)
{
#if defined(CONFIG_SOC_MPS2_AN521)
u32_t current_core = sse_200_platform_get_cpu_id();
ipm_send(ipm_handle, 0, current_core ? 0 : 1, 0, 1);
#else
u32_t dummy_data = 0x55005500; /* Some data must be provided */
ipm_send(ipm_handle, 0, 0, &dummy_data, sizeof(dummy_data));
#endif /* #if defined(CONFIG_SOC_MPS2_AN521) */
}
struct virtio_dispatch dispatch = {
@ -279,6 +285,11 @@ void main(void)
k_thread_create(&thread_data, thread_stack, APP_TASK_STACK_SIZE,
(k_thread_entry_t)app_task,
NULL, NULL, NULL, K_PRIO_COOP(7), 0, K_NO_WAIT);
#if defined(CONFIG_SOC_MPS2_AN521)
wakeup_cpu1();
k_sleep(500);
#endif /* #if defined(CONFIG_SOC_MPS2_AN521) */
}
/* Make sure we clear out the status flag very early (before we bringup the