diff options
Diffstat (limited to 'examples/imx7d_sdb_m4/demo_apps/hello_world_ocram/hardware_init.c')
-rw-r--r-- | examples/imx7d_sdb_m4/demo_apps/hello_world_ocram/hardware_init.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/examples/imx7d_sdb_m4/demo_apps/hello_world_ocram/hardware_init.c b/examples/imx7d_sdb_m4/demo_apps/hello_world_ocram/hardware_init.c new file mode 100644 index 0000000..598d2de --- /dev/null +++ b/examples/imx7d_sdb_m4/demo_apps/hello_world_ocram/hardware_init.c @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "board.h" +#include "pin_mux.h" + +void RDC_memory_init(void) +{ + uint32_t start, end; +#if defined(__CC_ARM) + extern uint32_t Image$$VECTOR_ROM$$Base[]; + extern uint32_t Image$$ER_m_text$$Limit[]; + extern uint32_t Image$$RW_m_data$$Base[]; + extern uint32_t Image$$RW_m_data$$Limit[]; + + start = (uint32_t)Image$$VECTOR_ROM$$Base & 0xFFFFFF80; + end = (uint32_t)(Image$$ER_m_text$$Limit + (Image$$RW_m_data$$Limit - Image$$RW_m_data$$Base)); + end = (end + 0x7F) & 0xFFFFFF80; +#else + extern uint32_t __FLASH_START[]; + extern uint32_t __FLASH_END[]; + + start = (uint32_t)__FLASH_START & 0xFFFFFF80; + end = ((uint32_t)__FLASH_END + 0x7F) & 0xFFFFFF80; +#endif + + /* Grant all domains read/write access because in DSM mode Linux need to + * save/restore OCRAM content */ + RDC_SetMrAccess(RDC, rdcMrOcram, start, end, 0xFF, true, false); +} + +void hardware_init(void) +{ + /* Board specific RDC settings */ + BOARD_RdcInit(); + + /* Bound part of the OCRAM Memory to M4 Core */ + RDC_memory_init(); + + /* Board specific clock settings */ + BOARD_ClockInit(); + + /* Initialize debug uart */ + dbg_uart_init(); +} + +/******************************************************************************* + * EOF + ******************************************************************************/ |