More files for the Cortex-M0/NUC120 port

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5659 42af7a65-404d-4744-a932-0658087f49c3

5 files changed, 177 insertions, 4 deletions

diff --git a/nuttx/configs/nutiny-nuc120/include/board.h b/nuttx/configs/nutiny-nuc120/include/board.h
index 276ce5d04..14842db86 100644
--- a/nuttx/configs/nutiny-nuc120/include/board.h
+++ b/nuttx/configs/nutiny-nuc120/include/board.h
@@ -51,6 +51,47 @@
  * Definitions
  ************************************************************************************/
 /* Clocking *************************************************************************/
+/* Crystal frequencies */
+
+#define BOARD_HIGHSPEED_XTAL_FREQUENCY 12000000
+#define BOARD_LOWSPEED_XTAL_FREQUENCY  32768
+
+/* PLL: The PLL must be 48MHz x N times when using USB
+ *
+ * FOUT = FIN x (NF/NR) x (1 / NO)
+ * FIN  = Input reference clock frequency
+ * NF   = Feedback divider
+ *      = (FB_DV + 2)
+ * NR   = Input divider
+ *      = (IN_DV + 2)
+ * NO   = 1 if OUT_DV == 0
+ *        2 if OUT_DV == 1 or 2
+ *        4 if OUT_DV == 3
+ *
+ * FOUT = 12000000 x 48 / 3 / 4
+ *      = 48MHz
+ */
+
+#define BOARD_PLL_FIN    BOARD_HIGHSPEED_XTAL_FREQUENCY
+#define BOARD_PLL_FB_DV  46
+#define BOARD_PLL_NF     (BOARD_PLL_FB_DV+2)
+#define BOARD_PLL_IN_DV  1
+#define BOARD_PLL_NR     (BOARD_PLL_IN_DV+2)
+#define BOARD_PLL_OUT_DV 3
+#define BOARD_PLL_NO     4
+
+#define BOARD_PLL_FOUT \
+  (BOARD_PLL_FIN * BOARD_PLL_NF / BOARD_PLL_NR / BOARD_PLL_NO)
+
+/* HCLK. FOUT is the HCLK source clock. */
+
+#define BOARD_HCLK_N     0
+#define BOARD_HCLK_FREQUENCY (BOARD_PLL_FOUT / (BOARD_HCLK_N + 1))
+
+/* USB. FOUT is the source.  The USB CLK must be 48MHz */
+
+#define BOARD_USB_N     0
+#define BOARD_USB_FREQUENCY (BOARD_PLL_FOUT / (BOARD_USB_N + 1))
 
 /* LED definitions ******************************************************************/
 /* The NuTiny has a single green LED that can be controlled from sofware.  This LED
diff --git a/nuttx/configs/nutiny-nuc120/ostest/defconfig b/nuttx/configs/nutiny-nuc120/ostest/defconfig
index e13b47105..9e37c286a 100644
--- a/nuttx/configs/nutiny-nuc120/ostest/defconfig
+++ b/nuttx/configs/nutiny-nuc120/ostest/defconfig
@@ -414,7 +414,7 @@ CONFIG_DISABLE_MOUNTPOINT=y
 # Memory Management
 #
 # CONFIG_MM_SMALL is not set
-CONFIG_MM_REGIONS=2
+CONFIG_MM_REGIONS=1
 # CONFIG_GRAN is not set
 
 #
diff --git a/nuttx/configs/nutiny-nuc120/scripts/ld.script b/nuttx/configs/nutiny-nuc120/scripts/ld.script
new file mode 100644
index 000000000..aed7e1b68
--- /dev/null
+++ b/nuttx/configs/nutiny-nuc120/scripts/ld.script
@@ -0,0 +1,113 @@
+/****************************************************************************
+ * configs/nutiny-nuc120/scripts/ld.script
+ *
+ *   Copyright (C) 2013 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.
+ *
+ ****************************************************************************/
+
+/* The NUC120LE3AN has 128Kb of FLASH beginning at address 0x0000:0000 and
+ * 16Kb of SRAM at address 0x20000000. 
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x00000000, LENGTH = 128K
+    sram (rwx) : ORIGIN = 0x20000000, LENGTH = 16K
+}
+
+OUTPUT_ARCH(arm)
+ENTRY(_stext)
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		_etext = ABSOLUTE(.);
+	} > flash
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > flash
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > flash
+
+	__exidx_start = ABSOLUTE(.);
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} > flash
+	__exidx_end = ABSOLUTE(.);
+
+	_eronly = ABSOLUTE(.);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sram AT > flash
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sram
+
+	/* Stabs debugging sections. */
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/nutiny-nuc120/src/nuc_led.c b/nuttx/configs/nutiny-nuc120/src/nuc_led.c
index 873a116e3..2482e7da0 100644
--- a/nuttx/configs/nutiny-nuc120/src/nuc_led.c
+++ b/nuttx/configs/nutiny-nuc120/src/nuc_led.c
@@ -103,10 +103,14 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_ledinit
+ * Name: nuc_ledinit
+ *
+ * Description:
+ *   Initialize the on-board LED
+ *
  ****************************************************************************/
 
-void up_ledinit(void)
+void nuc_ledinit(void)
 {
   nuc_configgpio(GPIO_LED);
 }
diff --git a/nuttx/configs/nutiny-nuc120/src/nutiny-nuc120.h b/nuttx/configs/nutiny-nuc120/src/nutiny-nuc120.h
index f7f3184bc..55744fb61 100644
--- a/nuttx/configs/nutiny-nuc120/src/nutiny-nuc120.h
+++ b/nuttx/configs/nutiny-nuc120/src/nutiny-nuc120.h
@@ -52,7 +52,7 @@
 
 /* NuTiny-EVB-120 GPIOs *****************************************************************************/
 /* The NuTiny has a single green LED that can be controlled from sofware.  This LED
- * is connected to PIN17.  It is pulled high so a low value will illuminate the LED.
+ * is connected to PIN17 (PB.0).  It is pulled high so a low value will illuminate the LED.
  *
  * If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
  * NuTiny.  The following definitions describe how NuttX controls the LEDs:
@@ -71,6 +71,8 @@
  *   LED_IDLE             NUC1XX is is sleep mode   (Optional, not used)
  */
 
+#define GPIO_LED (GPIO_OUTPUT | GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN8)
+
 /* Button definitions ***************************************************************/
 /* The NuTiny has no buttons */
 
@@ -111,6 +113,19 @@ void weak_function nuc_spiinitialize(void);
 void weak_function nuc_usbinitialize(void);
 #endif
 
+/****************************************************************************************************
+ * Name: nuc_ledinit
+ *
+ * Description:
+ *   Initialize the on-board LED
+ *
+ ****************************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void nuc_ledinit(void);
+#endif
+
+
 #endif /* __ASSEMBLY__ */
 #endif /* __CONFIGS_NUTINY_NUC120_SRC_NUTINY_NUC120_H */