037c9ea0a4
Summary The naming standard at https://cwiki.apache.org/confluence/display/NUTTX/Naming+FAQ requires that all MCU-private files begin with the name of the architecture, not up_. This PR addresses only these name changes for the up_*.h files. There are only three, but almost 1680 files that include them: up_arch.h up_internal.h up_vfork.h The only change to the files is from including up_arch.h to arm_arch.h (for example). The entire job required to be compatible with that Naming Convention will also require changing the naming of the up_() functions that are used only within arch/arm and board/arm. Impact There should be not impact of this change (other that one step toward more consistent naming). Testing stm32f4discovery:netnsh
160 lines
5.3 KiB
C
160 lines
5.3 KiB
C
/****************************************************************************
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* boards/arm/samv7/same70-xplained/src/sam_boot.c
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <nuttx/clock.h>
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#include <arch/board/board.h>
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#include "arm_arch.h"
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#include "sam_start.h"
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#include "sam_pck.h"
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#include "same70-xplained.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_boardinitialize
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*
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* Description:
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* All SAMV7 architectures must provide the following entry point. This
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* entry point is called early in the initialization -- after clocking and
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* memory have been configured but before caches have been enabled and
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* before any devices have been initialized.
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*
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****************************************************************************/
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void sam_boardinitialize(void)
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{
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#ifdef CONFIG_SCHED_TICKLESS
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uint32_t frequency;
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uint32_t actual;
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/* If Tickless mode is selected then enabled PCK6 as a possible clock
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* source for the timer/counters. The ideal frequency could be:
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*
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* frequency = 1,000,000 / CONFIG_USEC_PER_TICK
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*
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* The main crystal is selected as the frequency source. The maximum
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* prescaler value is 256 so the minimum frequency is 46,875 Hz which
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* corresponds to a period of 21.3 microseconds. A value of
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* CONFIG_USEC_PER_TICK=20, or 50KHz, would give an exact solution with
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* a divider of 240.
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*/
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frequency = USEC_PER_SEC / CONFIG_USEC_PER_TICK;
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DEBUGASSERT(frequency >= (BOARD_MAINOSC_FREQUENCY / 256));
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actual = sam_pck_configure(PCK6, PCKSRC_MAINCK, frequency);
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/* We expect to achieve this frequency exactly */
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DEBUGASSERT(actual == frequency);
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UNUSED(actual);
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/* Enable PCK6 */
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sam_pck_enable(PCK6, true);
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#endif
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#ifdef CONFIG_SAMV7_SDRAMC
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/* Configure SDRAM if it has been enabled in the NuttX configuration.
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* Here we assume, of course, that we are not running out SDRAM.
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*/
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sam_sdram_config();
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#endif
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#ifdef CONFIG_SAMV7_SPI
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/* Configure SPI chip selects if SPI has been enabled */
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sam_spidev_initialize();
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#endif
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#ifdef HAVE_USB
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/* Setup USB-related GPIO pins for the SAME70-XPLD board. */
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sam_usbinitialize();
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#endif
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#ifdef HAVE_NETWORK
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/* Configure board resources to support networking if the 1) networking is
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* enabled, and 2) the EMAC module is enabled
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*/
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sam_netinitialize();
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#endif
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/* Configure on-board LEDs if LED support has been selected. */
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#ifdef CONFIG_ARCH_LEDS
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board_autoled_initialize();
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#endif
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}
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/****************************************************************************
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* Name: board_late_initialize
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*
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* Description:
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* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
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* initialization call will be performed in the boot-up sequence to a
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* function called board_late_initialize(). board_late_initialize() will be
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* called immediately after up_intitialize() is called and just before the
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* initial application is started. This additional initialization phase
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* may be used, for example, to initialize board-specific device drivers.
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*
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****************************************************************************/
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#ifdef CONFIG_BOARD_LATE_INITIALIZE
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void board_late_initialize(void)
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{
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/* Perform board initialization */
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sam_bringup();
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}
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#endif /* CONFIG_BOARD_LATE_INITIALIZE */
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