145 lines
5.7 KiB
C
145 lines
5.7 KiB
C
/************************************************************************************
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* configs/eagle100/include/board.h
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* include/arch/board/board.h
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*
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* Copyright (C) 2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_BOARD_BOARD_H
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#define __ARCH_BOARD_BOARD_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include "lm3s_internal.h"
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/************************************************************************************
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* 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 /* Eagle100 on-board crystall 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, 30KHz or
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* 30KHz from hibernate module) */
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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 LM3S_SYSDIV 4
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#define SYSCLK_FREQUENCY 50000000 /* 50MHz */
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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 LM3S_RCC_VALUE (SYSCON_RCC_OSCSRC | SYSCON_RCC_XTAL | SYSCON_RCC_USESYSDIV | SYSCON_RCC_SYSDIV(LM3S_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 LM3S_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV(LM3S_SYSDIV))
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/* LED definitions ******************************************************************/
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/* The Eagle-100 has only one user LED: Port E, Bit 1. Below is the mapping of this
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* single LED. 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 enabling interrupts
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* ON Steady: The systems has enabled interrupts, 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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*/
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/* ON OFF */
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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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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Name: lm3s_boardinitialize
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*
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* Description:
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* All LM3S architectures must provide the following entry point. This entry point
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* is called early in the intitialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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extern void lm3s_boardinitialize(void);
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/************************************************************************************
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* Name: lm3s_ethernetmac
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*
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* Description:
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* For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile
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* USER0 and USER1 registers. If CONFIG_LM3S_BOARDMAC is defined, this function
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* will obtain the MAC address from these registers.
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*
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************************************************************************************/
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#ifdef CONFIG_LM3S_BOARDMAC
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struct ether_addr;
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extern void lm3s_ethernetmac(struct ether_addr *ethaddr);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_BOARD_BOARD_H */
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