Updates for STM3210E-EVAL SRAM

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4579 42af7a65-404d-4744-a932-0658087f49c3

3 files changed, 132 insertions, 102 deletions

diff --git a/nuttx/configs/stm3210e-eval/README.txt b/nuttx/configs/stm3210e-eval/README.txt
index 08d5b572b..c356a17d5 100755
--- a/nuttx/configs/stm3210e-eval/README.txt
+++ b/nuttx/configs/stm3210e-eval/README.txt
@@ -16,6 +16,7 @@ Contents
   - LEDs
   - Temperature Sensor
   - RTC
+  - FSMC SRAM
   - STM3210E-EVAL-specific Configuration Options
   - Configurations
 
@@ -350,6 +351,21 @@ RTC
    overflow interrupt may be lost even if the STM32 is powered down only momentarily.
    Therefore hi-res solution is only useful in systems where the power is always on.
 
+FSMC SRAM
+=========
+
+The 8-Mbit SRAM is connected to the STM32 at PG10 which will be FSMC_NE3, Bank1
+SRAM3.  This memory will appear at address 0x68000000.
+
+The on-board SRAM can be configured by setting
+
+  CONFIG_STM32_FSMC=y                         : Enables the FSMC
+  CONFIG_STM32_FSMC_SRAM=y                    : Enable external SRAM support
+  CONFIG_HEAP2_BASE=0x68000000                : SRAM will be located at 0x680000000
+  CONFIG_HEAP2_END=(0x68000000+(1*1024*1024)) : The size of the SRAM is 1Mbyte
+  CONFIG_MM_REGIONS=2                         : There will be two memory regions
+                                              : in the heap
+
 STM3210E-EVAL-specific Configuration Options
 ============================================
 
diff --git a/nuttx/configs/stm3210e-eval/include/board.h b/nuttx/configs/stm3210e-eval/include/board.h
index 8e2e88612..8a479a7e5 100755
--- a/nuttx/configs/stm3210e-eval/include/board.h
+++ b/nuttx/configs/stm3210e-eval/include/board.h
@@ -144,6 +144,14 @@
 #  define SDIO_SDXFR_CLKDIV     (3 << SDIO_CLKCR_CLKDIV_SHIFT)
 #endif
 
+/* SRAM definitions *****************************************************************/
+/* The 8 Mbit SRAM is provided on the PT3 board using the FSMC_NE3 chip select. */
+
+/* This is the Bank1 SRAM3 address: */
+
+#define BOARD_SRAM_BASE    0x68000000     /* Bank2 SRAM3 base address */
+#define BOARD_SRAM_SIZE    (1*1024*1024)  /* 8-Mbit = 1-Mbyte */
+
 /* LED definitions ******************************************************************/
 
 /* The STM3210E-EVAL board has 4 LEDs that we will encode as: */
diff --git a/nuttx/configs/stm3210e-eval/src/up_boot.c b/nuttx/configs/stm3210e-eval/src/up_boot.c
index 8646fee5b..5f111f9bb 100644
--- a/nuttx/configs/stm3210e-eval/src/up_boot.c
+++ b/nuttx/configs/stm3210e-eval/src/up_boot.c
@@ -1,102 +1,108 @@
-/************************************************************************************

- * configs/stm3210e-eval/src/up_boot.c

- * arch/arm/src/board/up_boot.c

- *

- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.

- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>

- *

- * 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 <debug.h>

-

-#include <arch/board/board.h>

-

-#include "up_arch.h"

-#include "stm3210e-internal.h"

-

-/************************************************************************************

- * Definitions

- ************************************************************************************/

-

-/************************************************************************************

- * Private Functions

- ************************************************************************************/

-

-/************************************************************************************

- * Public Functions

- ************************************************************************************/

-

-/************************************************************************************

- * Name: stm32_boardinitialize

- *

- * Description:

- *   All STM32 architectures must provide the following entry point.  This entry point

- *   is called early in the intitialization -- after all memory has been configured

- *   and mapped but before any devices have been initialized.

- *

- ************************************************************************************/

-

-void stm32_boardinitialize(void)

-{

-  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function

-   * stm32_spiinitialize() has been brought into the link.

-   */

-

-#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)

-  if (stm32_spiinitialize)

-    {

-      stm32_spiinitialize();

-    }

-#endif

-

-   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not

-    * disabled, and 3) the weak function stm32_usbinitialize() has been brought

-    * into the build.

-    */

-

-#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)

-  if (stm32_usbinitialize)

-    {

-      stm32_usbinitialize();

-    }

-#endif

-

-  /* Configure on-board LEDs if LED support has been selected. */

-

-#ifdef CONFIG_ARCH_LEDS

-  up_ledinit();

-#endif

-}

+/************************************************************************************
+ * configs/stm3210e-eval/src/up_boot.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2009, 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 <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "stm3210e-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void stm32_boardinitialize(void)
+{
+  /* If the FSMC and FSMC_SRAM are selected, then enable SRAM access */
+
+#if defined(CONFIG_STM32_FSMC) && defined(CONFIG_STM32_FSMC_SRAM)
+  stm32_selectsram();
+#endif
+
+  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
+   * stm32_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
+  if (stm32_spiinitialize)
+    {
+      stm32_spiinitialize();
+    }
+#endif
+
+   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
+    * disabled, and 3) the weak function stm32_usbinitialize() has been brought
+    * into the build.
+    */
+
+#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
+  if (stm32_usbinitialize)
+    {
+      stm32_usbinitialize();
+    }
+#endif
+
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  up_ledinit();
+#endif
+}