Remove CONFIG_ARCH_CALIBRATION. It is awkward to use and no longer necessary now that we have apps/examples/calib_udelay.

arch/Kconfig

@@ -705,16 +705,6 @@ config BOARD_LOOPSPERMSEC
 		driver initialization.  These delay loops must be calibrated for each
 		board in order to assure accurate timing by the delay loops.
 
-config ARCH_CALIBRATION
-	bool "Calibrate delay loop"
-	default n
-	---help---
-		Enables some built in instrumentation that causes a 100 second delay
-		during boot-up.  This 100 second delay serves no purpose other than it
-		allows you to calibrate BOARD_LOOPSPERMSEC.  You simply use a stop
-		watch to measure the actual delay then adjust BOARD_LOOPSPERMSEC until
-		the actual delay is 100 seconds.
-
 comment "Interrupt options"
 
 config ARCH_HAVE_INTERRUPTSTACK

arch/arm/src/common/up_initialize.c

@@ -65,33 +65,6 @@
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Name: up_color_intstack
  *
@@ -145,10 +118,6 @@ void up_initialize(void)
 
   CURRENT_REGS = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Colorize the interrupt stack */
 
   up_color_intstack();

arch/avr/src/common/up_initialize.c

@@ -107,33 +107,6 @@
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Name: up_color_intstack
  *
@@ -187,10 +160,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Colorize the interrupt stack */
 
   up_color_intstack();

arch/hc/src/common/up_initialize.c

@@ -59,37 +59,6 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -117,10 +86,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Add any extra memory fragments to the memory manager */
 
   up_addregion();

arch/mips/src/common/up_initialize.c

@@ -61,37 +61,6 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -119,10 +88,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Add any extra memory fragments to the memory manager */
 
   up_addregion();

arch/or1k/src/common/up_initialize.c

@@ -124,33 +124,6 @@ static void up_enable_dcache(void)
 }
 #endif
 
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Name: up_color_intstack
  *
@@ -204,10 +177,6 @@ void up_initialize(void)
 
   CURRENT_REGS = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Colorize the interrupt stack */
 
   up_color_intstack();

arch/renesas/src/common/up_initialize.c

@@ -59,45 +59,6 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* Define to enable timing loop calibration */
-
-#undef CONFIG_ARCH_CALIBRATION
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) & defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  swarn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  swarn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -125,10 +86,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Initialize the interrupt subsystem */
 
   up_irqinitialize();

arch/risc-v/src/common/up_initialize.c

@@ -55,31 +55,6 @@
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG)
-static void up_calibratedelay(void)
-{
-  int i;
-  lldbg("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-  lldbg("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Name: up_color_intstack
  *
@@ -129,10 +104,6 @@ static inline void up_color_intstack(void)
 
 void up_initialize(void)
 {
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Colorize the interrupt stack */
 
   up_color_intstack();

arch/x86/src/common/up_initialize.c

@@ -61,37 +61,6 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -119,10 +88,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Add any extra memory fragments to the memory manager */
 
   up_addregion();

arch/xtensa/src/common/xtensa_initialize.c

@@ -60,37 +60,6 @@
 
 #include "xtensa.h"
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -127,10 +96,6 @@ void up_initialize(void)
   CURRENT_REGS = NULL;
 #endif
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
   /* Add any extra memory fragments to the memory manager */
 
   xtensa_add_region();

arch/z16/src/common/up_initialize.c

@@ -72,37 +72,6 @@
 
 volatile FAR chipreg_t *g_current_regs;
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -130,10 +99,6 @@ void up_initialize(void)
 
   g_current_regs = NULL;
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
 #if CONFIG_MM_REGIONS > 1
   /* Add any extra memory fragments to the memory manager */
 

arch/z80/src/common/up_initialize.c

@@ -61,37 +61,6 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: up_calibratedelay
- *
- * Description:
- *   Delay loops are provided for short timing loops.  This function, if
- *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
- *   can then determine if the timing loops are properly calibrated.
- *
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG_FEATURES)
-static void up_calibratedelay(void)
-{
-  int i;
-
-  _warn("Beginning 100s delay\n");
-  for (i = 0; i < 100; i++)
-    {
-      up_mdelay(1000);
-    }
-
-  _warn("End 100s delay\n");
-}
-#else
-# define up_calibratedelay()
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -119,10 +88,6 @@ void up_initialize(void)
 
   INIT_IRQCONTEXT();
 
-  /* Calibrate the timing loop */
-
-  up_calibratedelay();
-
 #if CONFIG_MM_REGIONS > 1
   /* Add any extra memory fragments to the memory manager */
 

configs/amber/README.txt

@@ -423,13 +423,6 @@ Amber Web Server Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
        CONFIG_AVR_INT0=n

configs/avr32dev1/README.txt

@@ -387,13 +387,6 @@ AVR32DEV1 Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     CONFIG_AVR32_GPIOIRQ - GPIO interrupt support

configs/bambino-200e/README.txt

@@ -229,13 +229,6 @@ Bambino-200e Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_LPC43_ADC0=y

configs/c5471evm/README.txt

@@ -91,13 +91,6 @@ ARM/C5471-specific Configuration Options
 
 	CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
 
-	CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-	   cause a 100 second delay during boot-up.  This 100 second delay
-	   serves no purpose other than it allows you to calibratre
-	   CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-	   the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-	   the delay actually is 100 seconds.
-
   C5471 specific device driver settings
 
 	CONFIG_SERIAL_IRDA_CONSOLE - selects the IRDA UART for the

configs/cloudctrl/README.txt

@@ -258,13 +258,6 @@ Cloudctrl-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     AHB

configs/demo9s12ne64/README.txt

@@ -305,13 +305,6 @@ HCS12/DEMO9S12NEC64-specific Configuration Options
 
 	CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
 
-	CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-	   cause a 100 second delay during boot-up.  This 100 second delay
-	   serves no purpose other than it allows you to calibratre
-	   CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-	   the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-	   the delay actually is 100 seconds.
-
   GPIO Interrupts
 
     CONFIG_HCS12_GPIOIRQ - Enable general support for GPIO IRQs

configs/dk-tm4c129x/README.txt

@@ -598,13 +598,6 @@ DK-TM4129X Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   Only GPIOP and GPIOQ pins can be used as interrupting sources on the
   TM4C129X.  Additional interrupt support can be disabled if desired to

configs/ea3131/README.txt

@@ -534,15 +534,11 @@ ARM/EA3131-specific Configuration Options
 
     CONFIG_ARCH_BUTTONS -  Enable support for buttons. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
     CONFIG_ARCH_DMA - Support DMA initialization
+
     CONFIG_ARCH_LOWVECTORS - define if vectors reside at address 0x0000:00000
       Undefine if vectors reside at address 0xffff:0000
+
     CONFIG_ARCH_ROMPGTABLE - A pre-initialized, read-only page table is available.
       If defined, then board-specific logic must also define PGTABLE_BASE_PADDR,
       PGTABLE_BASE_VADDR, and all memory section mapping in a file named

configs/ea3152/README.txt

@@ -340,15 +340,11 @@ ARM/EA3152-specific Configuration Options
 
     CONFIG_ARCH_BUTTONS -  Enable support for buttons. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
     CONFIG_ARCH_DMA - Support DMA initialization
+
     CONFIG_ARCH_LOWVECTORS - define if vectors reside at address 0x0000:00000
       Undefine if vectors reside at address 0xffff:0000
+
     CONFIG_ARCH_ROMPGTABLE - A pre-initialized, read-only page table is available.
       If defined, then board-specific logic must also define PGTABLE_BASE_PADDR,
       PGTABLE_BASE_VADDR, and all memory section mapping in a file named

configs/eagle100/README.txt

@@ -126,13 +126,6 @@ Eagle100-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOH and GPIOJ must be disabled because they do not exist on the LM3S6918.
   Additional interrupt support can be disabled if desired to reduce memory

configs/ekk-lm3s9b96/README.txt

@@ -133,13 +133,6 @@ Stellaris EKK-LM3S9B96 Evaluation Kit Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOJ must be disabled because it does not exist on the LM3S9B96.
   Additional interrupt support can be disabled if desired to reduce memory

configs/fire-stm32v2/README.txt

@@ -369,13 +369,6 @@ M3 Wildfire-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
     AHB
     ---

configs/freedom-k64f/README.txt

@@ -709,13 +709,6 @@ Freedom K64F Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     CONFIG_KINETIS_TRACE    -- Enable trace clocking on power up.

configs/freedom-k66f/README.txt

@@ -712,13 +712,6 @@ Freedom K66F Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     CONFIG_KINETIS_TRACE    -- Enable trace clocking on power up.

configs/freedom-kl25z/README.txt

@@ -207,13 +207,6 @@ Freedom KL25Z-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled as follows.  These settings are for
   all of the K25Z100/120 line and may not be available for the MKL25Z128
   in particular:

configs/freedom-kl26z/README.txt

@@ -185,13 +185,6 @@ Freedom KL26Z-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled as follows.  These settings are for
   all of the K25Z100/120 line and may not be available for the MKL26Z128
   in particular:

configs/hymini-stm32v/README.txt

@@ -159,13 +159,6 @@ HY-Mini specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
     AHB
     ---

configs/kwikstik-k40/README.txt

@@ -202,13 +202,6 @@ KwikStik-K40-specific Configuration Options
 
     CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibrate
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     CONFIG_KINETIS_TRACE    -- Enable trace clocking on power up.

configs/lincoln60/README.txt

@@ -109,13 +109,6 @@ Lincoln 60 Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
       CONFIG_LPC17_MAINOSC=y
       CONFIG_LPC17_PLL0=y

configs/lm3s6432-s2e/README.txt

@@ -129,13 +129,6 @@ Stellaris MDL-S2E Reference Design Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOH and GPIOJ must be disabled because they do not exist on the LM3S6432.
   Additional interrupt support can be disabled if desired to reduce memory

configs/lm3s6965-ek/README.txt

@@ -276,13 +276,6 @@ Stellaris LM3S6965 Evaluation Kit Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOJ must be disabled because it does not exist on the LM3S6965.
   Additional interrupt support can be disabled if desired to reduce memory

configs/lm3s8962-ek/README.txt

@@ -196,13 +196,6 @@ Stellaris LM3S8962 Evaluation Kit Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOJ must be disabled because it does not exist on the LM3S8962.
   Additional interrupt support can be disabled if desired to reduce memory

configs/lm4f120-launchpad/README.txt

@@ -405,13 +405,6 @@ LM4F120 LaunchPad Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   There are configurations for disabling support for interrupts GPIO ports.
   GPIOJ must be disabled because it does not exist on the LM4F120.
   Additional interrupt support can be disabled if desired to reduce memory

configs/lpc4330-xplorer/README.txt

@@ -481,13 +481,6 @@ LPC4330-Xplorer Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_LPC43_ADC0=y

configs/lpc4337-ws/README.txt

@@ -520,13 +520,6 @@ LPC4337-ws Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_LPC43_ADC0=y

configs/lpc4357-evb/README.txt

@@ -517,13 +517,6 @@ LPC4357-EVB Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_LPC43_ADC0=y

configs/lpc4370-link2/README.txt

@@ -520,13 +520,6 @@ LPC4370-Link2 Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_LPC43_ADC0=y

configs/lpcxpresso-lpc1115/README.txt

@@ -455,13 +455,6 @@ LPCXpresso Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
       CONFIG_LPC11_MAINOSC=y
       CONFIG_LPC11_PLL0=y

configs/lpcxpresso-lpc1768/README.txt

@@ -427,13 +427,6 @@ LPCXpresso Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
       CONFIG_LPC17_MAINOSC=y
       CONFIG_LPC17_PLL0=y

configs/mbed/README.txt

@@ -72,13 +72,6 @@ mbed Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
       CONFIG_LPC17_MAINOSC=y
       CONFIG_LPC17_PLL0=y

configs/mcb1700/README.txt

@@ -73,13 +73,6 @@ mcb1700 Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
       CONFIG_LPC17_MAINOSC=y
       CONFIG_LPC17_PLL0=y

configs/mcu123-lpc214x/README.txt

@@ -254,13 +254,6 @@ ARM/LPC214X-specific Configuration Options
 
 	CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
 
-	CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-	   cause a 100 second delay during boot-up.  This 100 second delay
-	   serves no purpose other than it allows you to calibratre
-	   CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-	   the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-	   the delay actually is 100 seconds.
-
   LPC2148 specific chip initialization
 
     These provide register setup values:

configs/micropendous3/README.txt

@@ -442,13 +442,6 @@ Micropendous3 Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
       CONFIG_AVR_INT0=n

configs/mikroe-stm32f4/README.txt

@@ -282,13 +282,6 @@ Mikroe-STM32F4-specific Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
   Individual subsystems can be enabled:
 
     AHB1

configs/mirtoo/README.txt

@@ -702,13 +702,6 @@ PIC32MX Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     PIC32MX Configuration
 
       CONFIG_PIC32MX_MVEC - Select muli- vs. single-vectored interrupts

configs/moteino-mega/README.txt

@@ -183,13 +183,6 @@ MoteinoMEGA Configuration Options
 
     CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
 
-    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-       cause a 100 second delay during boot-up.  This 100 second delay
-       serves no purpose other than it allows you to calibratre
-       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-       the delay actually is 100 seconds.
-
     Individual subsystems can be enabled:
 
        CONFIG_AVR_INT0=n

configs/ne64badge/README.txt

@@ -412,13 +412,6 @@ HCS12/NE64BADGE-specific Configuration Options
 
 	CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
 
-	CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-	   cause a 100 second delay during boot-up.  This 100 second delay
-	   serves no purpose other than it allows you to calibratre
-	   CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
-	   the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
-	   the delay actually is 100 seconds.
-
   GPIO Interrupts
 
     CONFIG_HCS12_GPIOIRQ - Enable general support for GPIO IRQs

configs/nr5m100-nexys4/nsh/defconfig

@@ -4,7 +4,6 @@
 # CONFIG_STANDARD_SERIAL is not set
 CONFIG_ARCH_BOARD_NR5M100_NEXYS4=y
 CONFIG_ARCH_BOARD="nr5m100-nexys4"
-CONFIG_ARCH_CALIBRATION=y
 CONFIG_ARCH_CHIP_NR5=y
 CONFIG_ARCH_CHIP_NR5M100=y
 CONFIG_ARCH_RISCV=y