Timing adapter fix, init constructor priority

The timing adapters are attached to the Ethos-U AXI ports and should
only be initialized if the platform has been built with NPU support.

Add priority to init the constructor, insuring it will run before
any other constructor. This is important because the init constructor
sets up UART.

Change-Id: I189687437b95b11f6503c7631720e7883c24ada6

4 files changed, 10 insertions, 8 deletions

diff --git a/drivers/mhu_v2/src/mhu_v2.cpp b/drivers/mhu_v2/src/mhu_v2.cpp
index 1144a0f..cdeb90b 100644
--- a/drivers/mhu_v2/src/mhu_v2.cpp
+++ b/drivers/mhu_v2/src/mhu_v2.cpp
@@ -197,12 +197,12 @@ void MHUv2::printAIDR(bool tx, bool rx) {
     if (tx) {
         aidr = getTxAIDR();
         a    = reinterpret_cast<struct aidr_t *>(&aidr);
-        LOG_INFO("TX MHUv2 reports: Major rev: %d, Minor rev: %d", a->ARCH_MAJOR_REV, a->ARCH_MINOR_REV);
+        LOG("TX MHUv2 reports: Major rev: %d, Minor rev: %d", a->ARCH_MAJOR_REV, a->ARCH_MINOR_REV);
     }
     if (rx) {
         aidr = getRxAIDR();
         a    = reinterpret_cast<struct aidr_t *>(&aidr);
-        LOG_INFO("RX MHUv2 reports: Major rev: %d, Minor rev: %d", a->ARCH_MAJOR_REV, a->ARCH_MINOR_REV);
+        LOG("RX MHUv2 reports: Major rev: %d, Minor rev: %d", a->ARCH_MAJOR_REV, a->ARCH_MINOR_REV);
     }
 }
 
diff --git a/targets/common/src/init.cpp b/targets/common/src/init.cpp
index 54e4590..0876070 100644
--- a/targets/common/src/init.cpp
+++ b/targets/common/src/init.cpp
@@ -18,6 +18,6 @@
 
 #include <target.hpp>
 
-__attribute__((constructor)) void init() {
+__attribute__((constructor(500))) void init() {
     EthosU::targetSetup();
 }
diff --git a/targets/corstone-300/CMakeLists.txt b/targets/corstone-300/CMakeLists.txt
index 5dc3804..7c8db4e 100644
--- a/targets/corstone-300/CMakeLists.txt
+++ b/targets/corstone-300/CMakeLists.txt
@@ -124,9 +124,8 @@ target_sources(ethosu_target_startup INTERFACE
     target.cpp)
 
 target_link_libraries(ethosu_target_startup INTERFACE
-    $<$<TARGET_EXISTS:ethosu_core_driver>:ethosu_core_driver>
+    $<$<TARGET_EXISTS:ethosu_core_driver>:ethosu_core_driver;timing_adapter>
     mpu
-    timing_adapter
     ethosu_mhu_dummy
     ethosu_uart_cmsdk_apb)
 
diff --git a/targets/corstone-300/target.cpp b/targets/corstone-300/target.cpp
index 87ba0c4..8f8db83 100644
--- a/targets/corstone-300/target.cpp
+++ b/targets/corstone-300/target.cpp
@@ -24,11 +24,10 @@
 
 #ifdef ETHOSU
 #include <ethosu_driver.h>
+#include <timing_adapter.h>
 #endif
 
 #include "mpu.hpp"
-#include <timing_adapter.h>
-
 #include "uart_stdout.h"
 
 #include <inttypes.h>
@@ -67,6 +66,8 @@ struct ethosu_driver ethosu0_driver;
  * Timing Adapters
  ****************************************************************************/
 
+#ifdef ETHOSU
+
 #ifndef ETHOSU_TA_MAXR_0
 #define ETHOSU_TA_MAXR_0 0
 #endif
@@ -203,6 +204,8 @@ struct timing_adapter_settings ethosu_ta_settings[ETHOSU_NPU_TA_COUNT] = {{ETHOS
                                                                            ETHOSU_TA_HISTBIN_1,
                                                                            ETHOSU_TA_HISTCNT_1}};
 
+#endif
+
 /****************************************************************************
  * Cache maintenance
  ****************************************************************************/
@@ -283,6 +286,7 @@ void targetSetup() {
     // Initialize UART driver
     UartStdOutInit();
 
+#ifdef ETHOSU
     // Initialize timing adapter(s)
     for (int i = 0; i < ETHOSU_NPU_COUNT; i++) {
         for (int j = 0; j < ETHOSU_NPU_TA_COUNT; j++) {
@@ -295,7 +299,6 @@ void targetSetup() {
         }
     }
 
-#ifdef ETHOSU
     // Initialize Ethos-U NPU driver
     if (ethosu_init(&ethosu0_driver,
                     reinterpret_cast<void *>(ETHOSU_BASE_ADDRESS),