support M7 imxrt-ok1052 board

2022-03-07 18:24:10 +08:00
parent a5f48c65b7
commit 23099c5326
35 changed files with 5335 additions and 0 deletions
@@ -0,0 +1,113 @@
+/****************************************************************************
+ * boards/arm/imxrt/imxrt1052-ok/kernel/imxrt_userspace.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdlib.h>
+
+#include <nuttx/userspace.h>
+#include <nuttx/wqueue.h>
+#include <nuttx/mm/mm.h>
+
+#if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_NUTTX_USERSPACE
+#  error "CONFIG_NUTTX_USERSPACE not defined"
+#endif
+
+#if CONFIG_NUTTX_USERSPACE != 0x60200000
+#  error "CONFIG_NUTTX_USERSPACE must be 0x60200000 to match user-space.ld"
+#endif
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* These 'addresses' of these values are setup by the linker script.
+ * They are not actual uint32_t storage locations!
+ * They are only used meaningfully in the following way:
+ *
+ *  - The linker script defines, for example, the symbol_sdata.
+ *  - The declareion extern uint32_t _sdata; makes C happy.  C will believe
+ *    that the value _sdata is the address of a uint32_t variable _data (it
+ *    is not!).
+ *  - We can recoved the linker value then by simply taking the address of
+ *    of _data.  like:  uint32_t *pdata = &_sdata;
+ */
+
+extern uint32_t _stext;           /* Start of .text */
+extern uint32_t _etext;           /* End_1 of .text + .rodata */
+extern const uint32_t _eronly;    /* End+1 of read only section (.text + .rodata) */
+extern uint32_t _sdata;           /* Start of .data */
+extern uint32_t _edata;           /* End+1 of .data */
+extern uint32_t _sbss;            /* Start of .bss */
+extern uint32_t _ebss;            /* End+1 of .bss */
+
+/* This is the user space entry point */
+
+int CONFIG_USER_ENTRYPOINT(int argc, char *argv[]);
+
+const struct userspace_s userspace locate_data(".userspace") =
+{
+  /* General memory map */
+
+  .us_entrypoint    = (main_t)CONFIG_USER_ENTRYPOINT,
+  .us_textstart     = (uintptr_t)&_stext,
+  .us_textend       = (uintptr_t)&_etext,
+  .us_datasource    = (uintptr_t)&_eronly,
+  .us_datastart     = (uintptr_t)&_sdata,
+  .us_dataend       = (uintptr_t)&_edata,
+  .us_bssstart      = (uintptr_t)&_sbss,
+  .us_bssend        = (uintptr_t)&_ebss,
+
+  /* Memory manager heap structure */
+
+  .us_heap          = &g_mmheap,
+
+  /* Task/thread startup routines */
+
+  .task_startup     = nxtask_startup,
+
+  /* Signal handler trampoline */
+
+  .signal_handler   = up_signal_handler,
+
+  /* User-space work queue support (declared in include/nuttx/wqueue.h) */
+
+#ifdef CONFIG_LIBC_USRWORK
+  .work_usrstart    = work_usrstart,
+#endif
+};
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+#endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */