84 lines
3.2 KiB
C
84 lines
3.2 KiB
C
/****************************************************************************
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* calypso_heap.c
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* Initialize memory interfaces of Calypso MCU
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*
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* Copyright (C) 2011 Stefan Richter <ichgeh@l--putt.de>
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*
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* All rights reserved.
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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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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <arch/board/board.h>
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#include <arch/calypso/clock.h>
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#include <arch/calypso/timer.h>
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#include "up_arch.h"
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#include "up_internal.h"
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/****************************************************************************
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* Name: up_addregion
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*
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* Description:
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* This function is called right after basics are initialized and right
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* before IRQ system setup.
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*
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****************************************************************************/
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void up_addregion(void)
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{
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#ifdef CONFIG_ARCH_BOARD_COMPALE99
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/* Disable watchdog in first non-common function */
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wdog_enable(0);
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#endif
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// XXX: change to initialization of extern memory with save defaults
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/* Configure memory interface */
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calypso_mem_cfg(CALYPSO_nCS0, 3, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS1, 3, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS2, 5, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_nCS3, 5, CALYPSO_MEM_16bit, 1);
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calypso_mem_cfg(CALYPSO_CS4, 0, CALYPSO_MEM_8bit, 1);
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calypso_mem_cfg(CALYPSO_nCS6, 0, CALYPSO_MEM_32bit, 1);
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calypso_mem_cfg(CALYPSO_nCS7, 0, CALYPSO_MEM_32bit, 0);
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/* Set VTCXO_DIV2 = 1, configure PLL for 104 MHz and give ARM half of that */
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calypso_clock_set(2, CALYPSO_PLL13_104_MHZ, ARM_MCLK_DIV_2);
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/* Configure the RHEA bridge with some sane default values */
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calypso_rhea_cfg(0, 0, 0xff, 0, 1, 0, 0);
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}
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