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/****************************************************************************
* config/lpc4330-xplorer/src/up_nsh.c
* arch/arm/src/board/up_nsh.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <debug.h>
#include <errno.h>
/* This should be removed someday when we are confident in SPIFI */
#ifdef CONFIG_DEBUG_FS
# include "up_arch.h"
# include "chip/lpc43_cgu.h"
# include "chip/lpc43_ccu.h"
#endif
#include "chip.h"
#include <nuttx/ramdisk.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* USB Configuration ********************************************************/
/* PORT and SLOT number probably depend on the board configuration */
#ifdef CONFIG_ARCH_BOARD_LPC4330_XPLORER
# define CONFIG_NSH_HAVEUSBDEV 1
#else
# error "Unrecognized board"
# undef CONFIG_NSH_HAVEUSBDEV
#endif
/* Can't support USB features if USB is not enabled */
#ifndef CONFIG_USBDEV
# undef CONFIG_NSH_HAVEUSBDEV
#endif
/* SPIFI Configuration ******************************************************/
/* CONFIG_SPIFI_BLKDRVR - Enable to create a block driver on the SPFI device.
* CONFIG_SPIFI_DEVNO - SPIFI minor device number. The SPFI device will be
* at /dev/ramN, where N is the value of CONFIG_SPIFI_DEVNO. Default: 0.
* CONFIG_SPIFI_RDONLY - Create a read only device on SPIFI.
* CONFIG_SPIFI_OFFSET - Offset the beginning of the block driver this many
* bytes into the device address space. Default 0.
* CONFIG_SPIFI_BLKSIZE - The size of one block. SPIFI is not block oriented,
* so most any size of the block used in the SPIFI block device can be
* used. NOTE: FAT will support only sector sizes of 512, 1024, 2048, or
* 4096. Default: 512
* CONFIG_SPIFI_NBLOCKS - The number of blocks in the file system, each of
* size CONFIG_SPIFI_BLKSIZE. The end of the file system will be at
* device offset:
* CONFIG_SPIFI_OFFSET + CONFIG_SPIFI_BLKSIZE*CONFIG_SPIFI_NBLOCKS
* The must assure that this does offset does not go beyond the end of
* the FLASH memory.
*/
#ifdef CONFIG_SPIFI_BLKDRVR
# ifndef CONFIG_SPIFI_DEVNO
# define CONFIG_SPIFI_DEVNO 0
# endif
# ifndef CONFIG_SPIFI_OFFSET
# define CONFIG_SPIFI_OFFSET 0
# endif
# ifndef CONFIG_SPIFI_BLKSIZE
# define CONFIG_SPIFI_BLKSIZE 512
# endif
# ifndef CONFIG_SPIFI_NBLOCKS
# error "Need number of SPIFI blocks (CONFIG_SPIFI_NBLOCKS)"
# endif
#endif
#define SPIFI_BUFFER \
(FAR uint8_t *)(LPC43_LOCSRAM_SPIFI_BASE + CONFIG_SPIFI_OFFSET)
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lib_lowprintf(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lib_lowprintf
# else
# define message printf
# endif
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_spifi_initialize
*
* Description:
* Make the SPIFI (or part of it) into a block driver that can hold a
* file system.
*
* SPIFI AHB register clock:
* Base clock = BASE_M4_CLK
* Branch clock = CLK_M4_SPIFI
* SPIFI serial clock input:
* Base clock = BASE_SPIFI_CLK
* Branch clock = SPIFI_CLK
*
****************************************************************************/
#ifdef CONFIG_SPIFI_BLKDRVR
static int nsh_spifi_initialize(void)
{
/* This should be removed someday when we are confident in SPIFI */
#ifdef CONFIG_DEBUG_FS
fdbg("BASE_SPIFI_CLK=%08x\n",
getreg32(LPC43_BASE_SPIFI_CLK));
fdbg("SPFI CFG=%08x STAT=%08x\n",
getreg32(LPC43_CCU1_SPIFI_CFG), getreg32(LPC43_CCU1_SPIFI_STAT));
fdbg("M4 SPFI CFG=%08x STAT=%08x\n",
getreg32(LPC43_CCU1_M4_SPIFI_CFG), getreg32(LPC43_CCU1_M4_SPIFI_STAT));
#endif
#ifdef CONFIG_SPIFI_RDONLY
/* Register a read-only SPIFI RAM disk at /dev/ramN, where N is the
* value of CONFIG_SPIFI_DEVNO.
*/
return romdisk_register(CONFIG_SPIFI_DEVNO, SPIFI_BUFFER,
CONFIG_SPIFI_NBLOCKS, CONFIG_SPIFI_BLKSIZE);
#else
/* Register a write-able SPIFI RAM disk at /dev/ramN, where N is the
* value of CONFIG_SPIFI_DEVNO.
*/
return ramdisk_register(CONFIG_SPIFI_DEVNO, SPIFI_BUFFER,
CONFIG_SPIFI_NBLOCKS, CONFIG_SPIFI_BLKSIZE,
true);
#endif
}
#else
# define nsh_spifi_initialize() (OK)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int nsh_archinitialize(void)
{
/* Initialize the SPIFI block device */
return nsh_spifi_initialize();
}
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