Basic i.MX1 low-level boot

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1695 42af7a65-404d-4744-a932-0658087f49c3

configs/mx1ads/include/board.h

@@ -48,6 +48,20 @@
 /************************************************************************************
  * Definitions
  ************************************************************************************/
+ 
+/* LED definitions ******************************************************************/
+
+/* The MX1ADS has only one usable LED: Port A, bit 2 */
+
+                                /* ON   OFF */
+#define LED_STARTED       0     /* OFF  OFF */
+#define LED_HEAPALLOCATE  1     /* OFF  OFF */
+#define LED_IRQSENABLED   2     /* OFF  OFF */
+#define LED_STACKCREATED  3     /* OFF  OFF */
+#define LED_INIRQ         4     /* ON   OFF */
+#define LED_SIGNAL        5     /* ON   OFF */
+#define LED_ASSERTION     6     /* ON   OFF */
+#define LED_PANIC         7     /* ON   OFF */
 
 /************************************************************************************
  * Inline Functions

configs/mx1ads/ostest/Make.defs

@@ -57,7 +57,7 @@ endif
 ifeq ($(ARCHCCMAJOR),4)
   ARCHCPUFLAGS		= -mtune=arm9tdmi -march=armv4t -msoft-float -fno-builtin
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mtune=arm9tdmi -march=armv5te -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mtune=arm9tdmi -march=armv4t -msoft-float -fno-builtin
 endif
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow

configs/mx1ads/ostest/defconfig

@@ -50,6 +50,8 @@
 # CONFIG_DRAM_SIZE - Describes the installed DRAM.
 # CONFIG_DRAM_START - The start address of DRAM (physical)
 # CONFIG_DRAM_VSTART - The startaddress of DRAM (virtual)
+# CONFIG_ARCH_LOWVECTORS - Leave ARM interrupt vectors at 0x0000:0000
+#   instead of moving to 0xffff:0000
 # CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
 #   stack. If defined, this symbol is the size of the interrupt
 #   stack in bytes.  If not defined, the user task stacks will be
@@ -64,9 +66,10 @@ CONFIG_ARCH_BOARD=mx1ads
 CONFIG_ARCH_BOARD_MX1ADS=y
 CONFIG_BOARD_LOOPSPERMSEC=16945
 CONFIG_DRAM_SIZE=0x01000000
-CONFIG_DRAM_START=0x01000000
+CONFIG_DRAM_START=0x08000000
 CONFIG_DRAM_VSTART=0x00000000
-CONFIG_DRAM_NUTTXENTRY=0x01008000
+CONFIG_DRAM_NUTTXENTRY=0x01004000
+CONFIG_ARCH_LOWVECTORS=y
 CONFIG_ARCH_INTERRUPTSTACK=0
 CONFIG_ARCH_STACKDUMP=y
 
@@ -158,7 +161,7 @@ CONFIG_HAVE_LIBM=n
 CONFIG_EXAMPLE=ostest
 CONFIG_DEBUG=n
 CONFIG_DEBUG_VERBOSE=n
-CONFIG_MM_REGIONS=1
+CONFIG_MM_REGIONS=2
 CONFIG_ARCH_LOWPUTC=y
 CONFIG_RR_INTERVAL=200
 CONFIG_SCHED_INSTRUMENTATION=n

configs/mx1ads/src/up_leds.c

@@ -54,6 +54,22 @@
  * Private Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: imx_ledon
+ ****************************************************************************/
+
+static inline void imx_ledon(void)
+{
+}
+
+/****************************************************************************
+ * Name: imx_ledoff
+ ****************************************************************************/
+
+static void imx_ledoff(void)
+{
+}
+
 /****************************************************************************
  * Public Funtions
  ****************************************************************************/
@@ -65,7 +81,9 @@
 #ifdef CONFIG_ARCH_LEDS
 void up_ledinit(void)
 {
-# error "Missing implementation"
+  /* Configure Port A, Bit 2 as an output, initial value=1 */
+
+  imxgpio_configoutput(GPIOA, 2, 1);
 }
 
 /****************************************************************************
@@ -74,7 +92,23 @@ void up_ledinit(void)
 
 void up_ledon(int led)
 {
-# error "Missing implementation"
+  switch (led)
+    {
+      case LED_STARTED:
+      case LED_HEAPALLOCATE:
+      case LED_IRQSENABLED:
+      case LED_STACKCREATED:
+        imxgpio_setoutput(GPIOA, 2);  /* Port A, Bit 2 = 1 */
+        break;
+
+      case LED_INIRQ:
+      case LED_SIGNAL:
+      case LED_ASSERTION:
+      case LED_PANIC:
+      default:
+        imxgpio_clroutput(GPIOA, 2);  /* Port A, Bit 2 = 0 */
+        break;
+    }
 }
 
 /****************************************************************************
@@ -83,6 +117,7 @@ void up_ledon(int led)
 
 void up_ledoff(int led)
 {
-# error "Missing implementation"
+  imxgpio_clroutput(GPIOA, 2);  /* Port A, Bit 2 = 0 */
 }
+
 #endif /* CONFIG_ARCH_LEDS */