| /* |
| * Copyright (c) 2013-2014 Wind River Systems, Inc. |
| * |
| * Licensed 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. |
| */ |
| |
| /** |
| * @file |
| * @brief TI LM3S6965 System Control Peripherals interface |
| * |
| * |
| * Library for controlling target-specific devices present in the 0x400fe000 |
| * peripherals memory region. |
| * |
| * Currently, only enabling the main OSC with default value is implemented. |
| */ |
| |
| #include <stdint.h> |
| #include <toolchain.h> |
| #include <sections.h> |
| |
| #include "scp.h" |
| |
| /* System Control Peripheral (SCP) Registers */ |
| |
| volatile struct __scp __scp_section __scp; |
| |
| /** |
| * |
| * @brief Enable main oscillator with default frequency of 6MHz |
| * |
| * @return N/A |
| */ |
| void _ScpMainOscEnable(void) |
| { |
| union __rcc reg; |
| |
| reg.value = __scp.clock.rcc.value; |
| reg.bit.moscdis = 0; |
| reg.bit.oscsrc = _SCP_OSC_SOURCE_MAIN; |
| reg.bit.xtal = _SCP_CRYSTAL_6MHZ; |
| |
| __scp.clock.rcc.value = reg.value; |
| } |