40cd67eee6
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/****************************************************************************
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* boards/arm/tiva/lm3s6432-s2e/include/board.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_TIVA_LM3S6432_S2E_INCLUDE_BOARD_H
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#define __BOARDS_ARM_TIVA_LM3S6432_S2E_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* RCC settings */
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#define SYSCON_RCC_XTAL SYSCON_RCC_XTAL8000KHZ /* S2E on-board crystal is 8.00 MHz */
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#define XTAL_FREQUENCY 8000000
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/* Oscillator source is the main oscillator (not internal, internal/4,
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* 30KHz or 30KHz from hibernate module)
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*/
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#define SYSCON_RCC_OSCSRC SYSCON_RCC_OSCSRC_MOSC
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#define SYSCON_RCC2_OSCSRC SYSCON_RCC2_OSCSRC2_MOSC
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#define OSCSRC_FREQUENCY XTAL_FREQUENCY
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/* Use system divider = 4; this corresponds to a system clock frequency
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* of (400 / 2) / 4 = 50MHz
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*/
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#define TIVA_SYSDIV 4
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#define SYSCLK_FREQUENCY 50000000 /* 50MHz */
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/* Peripheral Clock (PCLK)
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*
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* Same frequency as the SYSCLK
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*/
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#define PCLK_FREQUENCY SYSCLK_FREQUENCY
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/* Other RCC settings:
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*
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* - Main and internal oscillators enabled.
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* - PLL and sys dividers not bypassed
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* - PLL not powered down
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* - No auto-clock gating reset
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*/
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#define TIVA_RCC_VALUE (SYSCON_RCC_OSCSRC | SYSCON_RCC_XTAL | SYSCON_RCC_USESYSDIV | SYSCON_RCC_SYSDIV(TIVA_SYSDIV))
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/* RCC2 settings -- RCC2 not used. Other RCC2 settings
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*
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* - PLL and sys dividers not bypassed.
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* - PLL not powered down
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* - Not using RCC2
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*/
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#define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV(TIVA_SYSDIV))
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/* LED definitions **********************************************************/
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/* The S2E has two LEDs on PF2/PF3, shared with the Ethernet.
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* In keeping with the other lm3s6xxx port, we use one of these for
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* debugging.
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* Below is the mapping of this single LED.
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* From this single LED, we can get the following information:
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*
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* OFF Steady: The system has failed to boot to the point of
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* enabling interrupts
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* ON Steady: The systems has enabled interrupts,
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* but none have been received
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* Dull glow: The system is taking interrupts
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* Slow blinking: The system has panicked
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* ON OFF
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*/
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#define LED_STARTED 0 /* OFF OFF */
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#define LED_HEAPALLOCATE 1 /* OFF OFF */
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#define LED_IRQSENABLED 2 /* ON ON */
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#define LED_STACKCREATED 3 /* ON ON */
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#define LED_INIRQ 4 /* ON OFF */
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#define LED_SIGNAL 5 /* ON OFF */
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#define LED_ASSERTION 6 /* ON OFF */
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#define LED_PANIC 7 /* ON OFF */
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#endif /* __BOARDS_ARM_TIVA_LM3S6432_S2E_INCLUDE_BOARD_H */
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