Add a driver for SST 25 FLASH

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4868 42af7a65-404d-4744-a932-0658087f49c3

configs/mirtoo/nsh/defconfig

@@ -163,6 +163,14 @@ CONFIG_PIC32MX_IOPORTA=y
 CONFIG_PIC32MX_IOPORTB=y
 CONFIG_PIC32MX_IOPORTC=y
 
+#
+# Mirtoo Board Settings
+#
+CONFIG_MTD_SST25=n
+#CONFIG_SST25_SPIMODE
+#CONFIG_SST25_SPIFREQUENCY
+CONFIG_SST25_SECTOR512=n
+
 #
 # PIC32MX Configuration Settings
 #
@@ -346,6 +354,8 @@ CONFIG_DEBUG=n
 CONFIG_DEBUG_VERBOSE=n
 CONFIG_DEBUG_SYMBOLS=n
 CONFIG_DEBUG_SCHED=n
+CONFIG_DEBUG_FS=n
+CONFIG_DEBUG_SPI=n
 
 CONFIG_HAVE_CXX=n
 CONFIG_HAVE_CXXINITIALIZE=n

configs/mirtoo/src/Makefile

@@ -44,6 +44,10 @@ ifeq ($(CONFIG_PIC32MX_SPI2),y)
 CSRCS		+= up_spi2.c
 endif
 
+ifeq ($(CONFIG_NSH_ARCHINIT),y)
+CSRCS		+= up_nsh.c
+endif
+
 AOBJS		= $(ASRCS:.S=$(OBJEXT))
 COBJS		= $(CSRCS:.c=$(OBJEXT))
 
@@ -53,8 +57,8 @@ OBJS		= $(AOBJS) $(COBJS)
 ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
 ifeq ($(WINTOOL),y)
   CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
-  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
-  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/mips32}"
+		   -I "${shell cygpath -w $(ARCH_SRCDIR)/mips32}"
 else
   CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/mips32
 endif

configs/mirtoo/src/up_nsh.c

@@ -0,0 +1,126 @@
+/****************************************************************************
+ * config/mirtoo/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 <stdbool.h>
+#include <stdio.h>
+#include <errno.h>
+#include <debug.h>
+
+#ifdef CONFIG_PIC32MX_SPI2
+#  include <nuttx/spi.h>
+#  include <nuttx/mtd.h>
+#endif
+
+#include "pic32mx-internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+/* Can't support the SST25 device if it SPI2 or SST25 support is not enabled */
+
+#define HAVE_SST25  1
+#if !defined(CONFIG_PIC32MX_SPI2) || !defined(CONFIG_MTD_SST25)
+#  undef HAVE_SST25
+#endif
+
+/* Can't support SST25 features if mountpoints are disabled */
+
+#if defined(CONFIG_DISABLE_MOUNTPOINT)
+#  undef HAVE_SST25
+#endif
+
+/* Use minor device number 0 is not is provided */
+
+#ifndef CONFIG_NSH_SST25MINOR
+#  define CONFIG_NSH_SST25MINOR 0
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+#ifdef HAVE_SST25
+  FAR struct spi_dev_s *spi;
+  FAR struct mtd_dev_s *mtd;
+  int ret;
+
+  /* Get the SPI port */
+
+  spi = up_spiinitialize(2);
+  if (!spi)
+    {
+      fdbg("ERROR: Failed to initialize SPI port 2\n");
+      return -ENODEV;
+    }
+
+  /* Now bind the SPI interface to the SST 25 SPI FLASH driver */
+
+  mtd = sst25_initialize(spi);
+  if (!mtd)
+    {
+      fdbg("ERROR: Failed to bind SPI port 2 to the SST 25 FLASH driver\n");
+      return -ENODEV;
+    }
+
+  /* And finally, use the FTL layer to wrap the MTD driver as a block driver */
+
+  ret = ftl_initialize(CONFIG_NSH_SST25MINOR, mtd);
+  if (ret < 0)
+    {
+      fdbg("ERROR: Initialize the FTL layer\n");
+      return -ENODEV;
+    }
+#endif
+  return OK;
+}

configs/mirtoo/src/up_spi2.c

@@ -51,7 +51,7 @@
 #include "chip.h"
 #include "pic32mx-internal.h"
 #include "pic32mx-pps.h"
-#include "mirtoo_internal.h"
+#include "mirtoo-internal.h"
 
 #ifdef CONFIG_PIC32MX_SPI2
 
@@ -119,8 +119,6 @@
 
 void weak_function pic32mx_spi2initialize(void)
 {
-  uint32_t regval;
-
   /* Make sure that TRIS pins are set correctly.  Configure the SPI pins as digital
    * inputs and outputs first.
    */
@@ -171,7 +169,7 @@ void weak_function pic32mx_spi2initialize(void)
 struct spi_dev_s;
 enum spi_dev_e;
 
-void  pic31mx_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+void  pic32mx_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
 {
   spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
 
@@ -185,13 +183,13 @@ void  pic31mx_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool s
     }
 }
 
-uint8_t pic31mx_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+uint8_t pic32mx_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
 {
   return 0;
 }
 
 #ifdef CONFIG_SPI_CMDDATA
-int pic31mx_spi2cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
+int pic32mx_spi2cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
 {
   return 0;
 }