deprecating the mcf5235 port (#334)
diff --git a/portable/GCC/MCF5235/port.c b/portable/GCC/MCF5235/port.c
deleted file mode 100644
index 9c7e84e..0000000
--- a/portable/GCC/MCF5235/port.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- FreeRTOS V4.1.1 - Copyright (C) 2003-2006 Richard Barry.
- MCF5235 Port - Copyright (C) 2006 Christian Walter.
-
- This file is part of the FreeRTOS distribution.
-
- FreeRTOS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License** as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- FreeRTOS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with FreeRTOS; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- A special exception to the GPL can be applied should you wish to distribute
- a combined work that includes FreeRTOS, without being obliged to provide
- the source code for any proprietary components. See the licensing section
- of https://www.FreeRTOS.org for full details of how and when the exception
- can be applied.
-
- ***************************************************************************
- ***************************************************************************
- * *
- * Get the FreeRTOS eBook! See https://www.FreeRTOS.org/Documentation *
- * *
- * This is a concise, step by step, 'hands on' guide that describes both *
- * general multitasking concepts and FreeRTOS specifics. It presents and *
- * explains numerous examples that are written using the FreeRTOS API. *
- * Full source code for all the examples is provided in an accompanying *
- * .zip file. *
- * *
- ***************************************************************************
- ***************************************************************************
-
- Please ensure to read the configuration and relevant port sections of the
- online documentation.
-
- https://www.FreeRTOS.org - Documentation, latest information, license and
- contact details.
-
- https://www.highintegritysystems.com/safertos/ - A version that is
- certified for use in safety critical systems.
-
- https://www.highintegritysystems.com/openrtos/ - Commercial support,
- development, porting, licensing and training services.
-*/
-
-#include <stdlib.h>
-
-#include "FreeRTOS.h"
-#include "FreeRTOSConfig.h"
-#include "task.h"
-
-/* ------------------------ Types ----------------------------------------- */
-typedef volatile uint32_t vuint32;
-typedef volatile uint16_t vuint16;
-typedef volatile uint8_t vuint8;
-
-/* ------------------------ Defines --------------------------------------- */
-#define portVECTOR_TABLE __RAMVEC
-#define portVECTOR_SYSCALL ( 32 + portTRAP_YIELD )
-#define portVECTOR_TIMER ( 64 + 36 )
-
-#define MCF_PIT_PRESCALER 512UL
-#define MCF_PIT_TIMER_TICKS ( FSYS_2 / MCF_PIT_PRESCALER )
-#define MCF_PIT_MODULUS_REGISTER(freq) ( MCF_PIT_TIMER_TICKS / ( freq ) - 1UL)
-
-#define MCF_PIT_PMR0 ( *( vuint16 * )( void * )( &__IPSBAR[ 0x150002 ] ) )
-#define MCF_PIT_PCSR0 ( *( vuint16 * )( void * )( &__IPSBAR[ 0x150000 ] ) )
-#define MCF_PIT_PCSR_PRE(x) ( ( ( x ) & 0x000F ) << 8 )
-#define MCF_PIT_PCSR_EN ( 0x0001 )
-#define MCF_PIT_PCSR_RLD ( 0x0002 )
-#define MCF_PIT_PCSR_PIF ( 0x0004 )
-#define MCF_PIT_PCSR_PIE ( 0x0008 )
-#define MCF_PIT_PCSR_OVW ( 0x0010 )
-#define MCF_INTC0_ICR36 ( *( vuint8 * )( void * )( &__IPSBAR[ 0x000C64 ] ) )
-#define MCF_INTC0_IMRH ( *( vuint32 * )( void * )( &__IPSBAR[ 0x000C08 ] ) )
-#define MCF_INTC0_IMRH_INT_MASK36 ( 0x00000010 )
-#define MCF_INTC0_IMRH_MASKALL ( 0x00000001 )
-#define MCF_INTC0_ICRn_IP(x) ( ( ( x ) & 0x07 ) << 0 )
-#define MCF_INTC0_ICRn_IL(x) ( ( ( x ) & 0x07 ) << 3 )
-
-#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
-#define portINITIAL_CRITICAL_NESTING ( ( uint32_t ) 10 )
-
-/* ------------------------ Static variables ------------------------------ */
-volatile uint32_t ulCriticalNesting = portINITIAL_CRITICAL_NESTING;
-
-/* ------------------------ Static functions ------------------------------ */
-#if configUSE_PREEMPTION == 0
-static void prvPortPreemptiveTick ( void ) __attribute__ ((interrupt_handler));
-#else
-static void prvPortPreemptiveTick ( void );
-#endif
-
-/* ------------------------ Start implementation -------------------------- */
-
-StackType_t *
-pxPortInitialiseStack( StackType_t * pxTopOfStack, TaskFunction_t pxCode,
- void *pvParameters )
-{
- /* Place the parameter on the stack in the expected location. */
- *pxTopOfStack = ( StackType_t ) pvParameters;
- pxTopOfStack--;
-
- /* Place dummy return address on stack. Tasks should never terminate so
- * we can set this to anything. */
- *pxTopOfStack = ( StackType_t ) 0;
- pxTopOfStack--;
-
- /* Create a Motorola Coldfire exception stack frame. First comes the return
- * address. */
- *pxTopOfStack = ( StackType_t ) pxCode;
- pxTopOfStack--;
-
- /* Format, fault-status, vector number for exception stack frame. Task
- * run in supervisor mode. */
- *pxTopOfStack = 0x40002000UL | ( portVECTOR_SYSCALL + 32 ) << 18;
- pxTopOfStack--;
-
- /* Set the initial critical section nesting counter to zero. This value
- * is used to restore the value of ulCriticalNesting. */
- *pxTopOfStack = 0;
- *pxTopOfStack--;
-
- *pxTopOfStack = ( StackType_t ) 0xA6; /* A6 / FP */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA5; /* A5 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA4; /* A4 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA3; /* A3 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA2; /* A2 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA1; /* A1 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xA0; /* A0 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD7; /* D7 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD6; /* D6 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD5; /* D5 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD4; /* D4 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD3; /* D3 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD2; /* D2 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD1; /* D1 */
- pxTopOfStack--;
- *pxTopOfStack = ( StackType_t ) 0xD0; /* D0 */
-
- return pxTopOfStack;
-}
-
-/*
- * Called by portYIELD() or taskYIELD() to manually force a context switch.
- */
-static void
-prvPortYield( void )
-{
- asm volatile ( "move.w #0x2700, %sr\n\t" );
-#if _GCC_USES_FP == 1
- asm volatile ( "unlk %fp\n\t" );
-#endif
- /* Perform the context switch. First save the context of the current task. */
- portSAVE_CONTEXT( );
-
- /* Find the highest priority task that is ready to run. */
- vTaskSwitchContext( );
-
- /* Restore the context of the new task. */
- portRESTORE_CONTEXT( );
-}
-
-#if configUSE_PREEMPTION == 0
-/*
- * The ISR used for the scheduler tick depends on whether the cooperative or
- * the preemptive scheduler is being used.
- */
-static void
-prvPortPreemptiveTick ( void )
-{
- /* The cooperative scheduler requires a normal IRQ service routine to
- * simply increment the system tick.
- */
-
- xTaskIncrementTick();
- MCF_PIT_PCSR0 |= MCF_PIT_PCSR_PIF;
-}
-
-#else
-
-static void
-prvPortPreemptiveTick( void )
-{
- asm volatile ( "move.w #0x2700, %sr\n\t" );
-#if _GCC_USES_FP == 1
- asm volatile ( "unlk %fp\n\t" );
-#endif
- portSAVE_CONTEXT( );
- MCF_PIT_PCSR0 |= MCF_PIT_PCSR_PIF;
- if( xTaskIncrementTick() != pdFALSE )
- {
- vTaskSwitchContext( );
- }
- portRESTORE_CONTEXT( );
-}
-#endif
-
-void
-vPortEnterCritical()
-{
- /* FIXME: We should store the old IPL here - How are we supposed to do
- * this.
- */
- ( void )portSET_IPL( portIPL_MAX );
-
- /* Now interrupts are disabled ulCriticalNesting can be accessed
- * directly. Increment ulCriticalNesting to keep a count of how many times
- * portENTER_CRITICAL() has been called. */
- ulCriticalNesting++;
-}
-
-void
-vPortExitCritical()
-{
- if( ulCriticalNesting > portNO_CRITICAL_NESTING )
- {
- /* Decrement the nesting count as we are leaving a critical section. */
- ulCriticalNesting--;
-
- /* If the nesting level has reached zero then interrupts should be
- re-enabled. */
- if( ulCriticalNesting == portNO_CRITICAL_NESTING )
- {
- ( void )portSET_IPL( 0 );
- }
- }
-}
-
-BaseType_t
-xPortStartScheduler( void )
-{
- extern void ( *portVECTOR_TABLE[ ] ) ( );
-
- /* Add entry in vector table for yield system call. */
- portVECTOR_TABLE[ portVECTOR_SYSCALL ] = prvPortYield;
- /* Add entry in vector table for periodic timer. */
- portVECTOR_TABLE[ portVECTOR_TIMER ] = prvPortPreemptiveTick;
-
- /* Configure the timer for the system clock. */
- if ( configTICK_RATE_HZ > 0)
- {
- /* Configure prescaler */
- MCF_PIT_PCSR0 = MCF_PIT_PCSR_PRE( 0x9 ) | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_OVW;
- /* Initialize the periodic timer interrupt. */
- MCF_PIT_PMR0 = MCF_PIT_MODULUS_REGISTER( configTICK_RATE_HZ );
- /* Configure interrupt priority and level and unmask interrupt. */
- MCF_INTC0_ICR36 = MCF_INTC0_ICRn_IL( 0x1 ) | MCF_INTC0_ICRn_IP( 0x1 );
- MCF_INTC0_IMRH &= ~( MCF_INTC0_IMRH_INT_MASK36 | MCF_INTC0_IMRH_MASKALL );
- /* Enable interrupts */
- MCF_PIT_PCSR0 |= MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_EN | MCF_PIT_PCSR_PIF;
- }
-
- /* Restore the context of the first task that is going to run. */
- portRESTORE_CONTEXT( );
-
- /* Should not get here. */
- return pdTRUE;
-}
-
-void
-vPortEndScheduler( void )
-{
-}
diff --git a/portable/GCC/MCF5235/portmacro.h b/portable/GCC/MCF5235/portmacro.h
deleted file mode 100644
index 065667f..0000000
--- a/portable/GCC/MCF5235/portmacro.h
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- FreeRTOS V4.1.1 - Copyright (C) 2003-2006 Richard Barry.
- MCF5235 Port - Copyright (C) 2006 Christian Walter.
-
- This file is part of the FreeRTOS distribution.
-
- FreeRTOS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License** as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- FreeRTOS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with FreeRTOS; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- A special exception to the GPL can be applied should you wish to distribute
- a combined work that includes FreeRTOS, without being obliged to provide
- the source code for any proprietary components. See the licensing section
- of https://www.FreeRTOS.org for full details of how and when the exception
- can be applied.
-
- ***************************************************************************
- ***************************************************************************
- * *
- * Get the FreeRTOS eBook! See https://www.FreeRTOS.org/Documentation *
- * *
- * This is a concise, step by step, 'hands on' guide that describes both *
- * general multitasking concepts and FreeRTOS specifics. It presents and *
- * explains numerous examples that are written using the FreeRTOS API. *
- * Full source code for all the examples is provided in an accompanying *
- * .zip file. *
- * *
- ***************************************************************************
- ***************************************************************************
-
- Please ensure to read the configuration and relevant port sections of the
- online documentation.
-
- https://www.FreeRTOS.org - Documentation, latest information, license and
- contact details.
-
- https://www.highintegritysystems.com/safertos/ - A version that is
- certified for use in safety critical systems.
-
- https://www.highintegritysystems.com/openrtos/ - Commercial support,
- development, porting,
- licensing and training services.
-*/
-
-#ifndef PORTMACRO_H
-#define PORTMACRO_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* ------------------------ Data types for Coldfire ----------------------- */
-#define portCHAR char
-#define portFLOAT float
-#define portDOUBLE double
-#define portLONG long
-#define portSHORT short
-#define portSTACK_TYPE unsigned int
-#define portBASE_TYPE int
-
-typedef portSTACK_TYPE StackType_t;
-typedef long BaseType_t;
-typedef unsigned long UBaseType_t;
-
-#if( configUSE_16_BIT_TICKS == 1 )
- typedef uint16_t TickType_t;
- #define portMAX_DELAY ( TickType_t ) 0xffff
-#else
- typedef uint32_t TickType_t;
- #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
-#endif
-
-/* ------------------------ Architecture specifics ------------------------ */
-#define portSTACK_GROWTH ( -1 )
-#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
-#define portBYTE_ALIGNMENT 4
-
-#define portTRAP_YIELD 0 /* Trap 0 */
-#define portIPL_MAX 7 /* Only NMI interrupt 7 allowed. */
-
-/* ------------------------ FreeRTOS macros for port ---------------------- */
-
-/*
- * This function must be called when the current state of the active task
- * should be stored. It must be called immediately after exception
- * processing from the CPU, i.e. there exists a Coldfire exception frame at
- * the current position in the stack. The function reserves space on
- * the stack for the CPU registers and other task dependent values (e.g
- * ulCriticalNesting) and updates the top of the stack in the TCB.
- */
-#define portSAVE_CONTEXT() \
- asm volatile ( /* reserve space for task state. */ \
- "lea.l (-64, %sp), %sp\n\t" \
- /* push data register %d0-%d7/%a0-%a6 on stack. */ \
- "movem.l %d0-%d7/%a0-%a6, (%sp)\n\t" \
- /* push ulCriticalNesting counter on stack. */ \
- "lea.l (60, %sp), %a0\n\t" \
- "move.l ulCriticalNesting, (%a0)\n\t" \
- /* set the new top of the stack in the TCB. */ \
- "move.l pxCurrentTCB, %a0\n\t" \
- "move.l %sp, (%a0)");
-
-/*.
- * This function restores the current active and continues its execution.
- * It loads the current TCB and restores the processor registers, the
- * task dependent values (e.g ulCriticalNesting). Finally execution
- * is continued by executing an rte instruction.
- */
-#define portRESTORE_CONTEXT() \
- asm volatile ( "move.l pxCurrentTCB, %sp\n\t" \
- "move.l (%sp), %sp\n\t" \
- /* stack pointer now points to the saved registers. */ \
- "movem.l (%sp), %d0-%d7/%a0-%a6\n\t" \
- /* restore ulCriticalNesting counter from stack. */ \
- "lea.l (%sp, 60), %sp\n\t" \
- "move.l (%sp)+, ulCriticalNesting\n\t" \
- /* stack pointer now points to exception frame. */ \
- "rte\n\t" );
-
-#define portENTER_CRITICAL() \
- vPortEnterCritical();
-
-#define portEXIT_CRITICAL() \
- vPortExitCritical();
-
-#define portSET_IPL( xIPL ) \
- asm_set_ipl( xIPL )
-
-#define portDISABLE_INTERRUPTS() \
- do { ( void )portSET_IPL( portIPL_MAX ); } while( 0 )
-#define portENABLE_INTERRUPTS() \
- do { ( void )portSET_IPL( 0 ); } while( 0 )
-
-#define portYIELD() \
- asm volatile ( " trap %0\n\t" : : "i"(portTRAP_YIELD) )
-
-#define portNOP() \
- asm volatile ( "nop\n\t" )
-
-#define portENTER_SWITCHING_ISR() \
- asm volatile ( "move.w #0x2700, %sr" ); \
- /* Save the context of the interrupted task. */ \
- portSAVE_CONTEXT( ); \
- {
-
-#define portEXIT_SWITCHING_ISR( SwitchRequired ) \
- /* If a switch is required we call vTaskSwitchContext(). */ \
- if( SwitchRequired ) \
- { \
- vTaskSwitchContext( ); \
- } \
- } \
- portRESTORE_CONTEXT( );
-
-/* ------------------------ Function prototypes --------------------------- */
-void vPortEnterCritical( void );
-void vPortExitCritical( void );
-int asm_set_ipl( uint32_t int uiNewIPL );
-
-/* ------------------------ Compiler specifics ---------------------------- */
-#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) \
- void vFunction( void *pvParameters )
-
-#define portTASK_FUNCTION( vFunction, pvParameters ) \
- void vFunction( void *pvParameters )
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* PORTMACRO_H */
-
diff --git a/portable/GCC/MCF5235/readme.md b/portable/GCC/MCF5235/readme.md
new file mode 100644
index 0000000..650cfcc
--- /dev/null
+++ b/portable/GCC/MCF5235/readme.md
@@ -0,0 +1,2 @@
+The MCF5235 port is deprecated. The last FreeRTOS version that includes this port is 10.4.3.
+
