/************************************************************************************
* arch/arm/src/lm3s/lm3s_vectors.S
*
* 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>
/************************************************************************************
* Preprocessor Definitions
************************************************************************************/
/* Memory Map:
*
* 0x0000:0000 - Beginning of FLASH. Address of vectors (if not using bootloader)
* 0x0002:0000 - Address of vectors if using bootloader
* 0x0003:ffff - End of flash
* 0x2000:0000 - Start of SRAM and start of .data (_sdata)
* - End of .data (_edata) abd start of .bss (_sbss)
* - End of .bss (_ebss) and bottom of idle stack
* - _ebss + CONFIG_IDLETHREAD_STACKSIZE = end of idle stack, start of heap
* 0x2000:ffff - End of SRAM and end of heap
*/
#define IDLE_STACK (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
#define HEAP_BASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE-4)
/************************************************************************************
* Global Symbols
************************************************************************************/
.globl dispach_irq
/************************************************************************************
* Macros
************************************************************************************/
.macro HANDLER, label, irqno
\label:
#warning "Missing logic"
.endm
/************************************************************************************
* Vectors
************************************************************************************/
.section .vectors, "ax"
.code 16
.align 0
_vectors:
/* Processor Exceptions */
.word IDLE_STACK /* Vector 0: Reset stack pointer */
.word _start /* Vector 1: Reset vector */
.word lm3s_nmi /* Vector 2: Non-Maskable Interrupt (NMI) */
.word lm3s_hardfault /* Vector 3: Hard fault */
.word lm3s_mpu /* Vector 4: Memory management (MPU) */
.word lm3s_busfault /* Vector 5: Bus fault */
.word lm3s_usagefault /* Vector 6: Usage fault */
.word lm3s_reserved /* Vector 7: Reserved */
.word lm3s_reserved /* Vector 8: Reserved */
.word lm3s_reserved /* Vector 9: Reserved */
.word lm3s_reserved /* Vector 10: Reserved */
.word lm3s_svcall /* Vector 11: SVC call */
.word lm3s_dbgmonitor /* Vector 12: Debug monitor */
.word lm3s_reserved /* Vector 13: Reserved */
.word lm3s_pendsv /* Vector 14: Pendable system service request */
.word lm3s_systick /* Vector 15: System tick */
/* External Interrupts */
#ifdef CONFIG_ARCH_CHIP_LM3S6918
.word lm3s_gpioa /* Vector 16: GPIO Port A */
.word lm3s_gpiob /* Vector 17: GPIO Port B */
.word lm3s_gpiod /* Vector 18: GPIO Port C */
.word lm3s_gpioe /* Vector 19: GPIO Port D */
.word lm3s_gpioe /* Vector 20: GPIO Port E */
.word lm3s_uart0 /* Vector 21: UART 0 */
.word lm3s_uart1 /* Vector 22: UART 1 */
.word lm3s_ssi0 /* Vector 23: SSI 0 */
.word lm3s_i2c0 /* Vector 24: I2C 0 */
.word lm3s_reserved /* Vector 25: Reserved */
.word lm3s_reserved /* Vector 26: Reserved */
.word lm3s_reserved /* Vector 27: Reserved */
.word lm3s_reserved /* Vector 28: Reserved */
.word lm3s_reserved /* Vector 29: Reserved */
.word lm3s_adc0 /* Vector 30: ADC Sequence 0 */
.word lm3s_adc1 /* Vector 31: ADC Sequence 1 */
.word lm3s_adc2 /* Vector 32: ADC Sequence 2 */
.word lm3s_adc3 /* Vector 33: ADC Sequence 3 */
.word lm3s_wdog /* Vector 34: Watchdog Timer */
.word lm3s_tmr0a /* Vector 35: Timer 0 A */
.word lm3s_tmr0b /* Vector 36: Timer 0 B */
.word lm3s_tmr1a /* Vector 37: Timer 1 A */
.word lm3s_tmr1b /* Vector 38: Timer 1 B */
.word lm3s_tmr2a /* Vector 39: Timer 2 A */
.word lm3s_tmr2b /* Vector 40: Timer 3 B */
.word lm3s_cmp0 /* Vector 41: Analog Comparator 0 */
.word lm3s_dmp1 /* Vector 42: Analog Comparator 1 */
.word lm3s_reserved /* Vector 43: Reserved */
.word lm3s_syscon /* Vector 44: System Control */
.word lm3s_flashcon /* Vector 45: FLASH Control */
.word lm3s_gpiof /* Vector 46: GPIO Port F */
.word lm3s_gpiog /* Vector 47: GPIO Port G */
.word lm3s_gpioh /* Vector 48: GPIO Port H */
.word lm3s_reserved /* Vector 49: Reserved */
.word lm3s_ssi1 /* Vector 50: SSI 1 */
.word lm3s_tmr3a /* Vector 51: Timer 3 A */
.word lm3s_tmr3b /* Vector 52: Timer 3 B */
.word lm3s_i2c1 /* Vector 53: I2C 1 */
.word lm3s_reserved /* Vector 54: Reserved */
.word lm3s_reserved /* Vector 55: Reserved */
.word lm3s_reserved /* Vector 56: Reserved */
.word lm3s_reserved /* Vector 57: Reserved */
.word lm3s_eth /* Vector 58: Ethernet Controller */
.word lm3s_hib /* Vector 59: Hibernation Module */
.word lm3s_reserved /* Vector 60: Reserved */
.word lm3s_reserved /* Vector 61: Reserved */
.word lm3s_reserved /* Vector 62: Reserved */
.word lm3s_reserved /* Vector 63: Reserved */
.word lm3s_reserved /* Vector 64: Reserved */
.word lm3s_reserved /* Vector 65: Reserved */
.word lm3s_reserved /* Vector 66: Reserved */
.word lm3s_reserved /* Vector 67: Reserved */
.word lm3s_reserved /* Vector 68: Reserved */
.word lm3s_reserved /* Vector 69: Reserved */
.word lm3s_reserved /* Vector 70: Reserved */
#else
# error "Vectors not specified for this LM3S chip"
#endif
/************************************************************************************
* .text
************************************************************************************/
.text
.thumb_func
HANDLER lm3s_reserved, LMSB_IRQ_RESERVED /* Unexpected/reserved vector */
HANDLER lm3s_nmi, LMSB_IRQ_NMI /* Vector 2: Non-Maskable Interrupt (NMI) */
HANDLER lm3s_hardfault, LMSB_IRQ_HARDFAULT /* Vector 3: Hard fault */
HANDLER lm3s_mpu, LMSB_IRQ_MPU /* Vector 4: Memory management (MPU) */
HANDLER lm3s_busfault, LMSB_IRQ_BUSFAULT /* Vector 5: Bus fault */
HANDLER lm3s_usagefault, LMSB_IRQ_USAGEFAULT /* Vector 6: Usage fault */
HANDLER lm3s_svcall, LMSB_IRQ_SVCALL /* Vector 11: SVC call */
HANDLER lm3s_dbgmonitor, LMSB_IRQ_DBGMONITOR /* Vector 12: Debug Monitor */
HANDLER lm3s_pendsv, LMSB_IRQ_PENDSV /* Vector 14: Penable system service request */
HANDLER lm3s_systick, LMSB_IRQ_SYSTICK /* Vector 15: System tick */
#ifdef CONFIG_ARCH_CHIP_LM3S6918
HANDLER lm3s_gpioa, LM3S_IRQ_GPIOA /* Vector 16: GPIO Port A */
HANDLER lm3s_gpiob, LM3S_IRQ_GPIOB /* Vector 17: GPIO Port B */
HANDLER lm3s_gpiod, LM3S_IRQ_GPIOC /* Vector 18: GPIO Port C */
HANDLER lm3s_gpioe, LM3S_IRQ_GPIOD /* Vector 19: GPIO Port D */
HANDLER lm3s_gpioe, LM3S_IRQ_GPIOE /* Vector 20: GPIO Port E */
HANDLER lm3s_uart0, LM3S_IRQ_UART0 /* Vector 21: UART 0 */
HANDLER lm3s_uart1, LM3S_IRQ_UART1 /* Vector 22: UART 1 */
HANDLER lm3s_ssi0, LM3S_IRQ_SSI0 /* Vector 23: SSI 0 */
HANDLER lm3s_i2c0, LM3S_IRQ_I2C0 /* Vector 24: I2C 0 */
HANDLER lm3s_adc0, LM3S_IRQ_ADC0 /* Vector 30: ADC Sequence 0 */
HANDLER lm3s_adc1, LM3S_IRQ_ADC1 /* Vector 31: ADC Sequence 1 */
HANDLER lm3s_adc2, LM3S_IRQ_ADC2 /* Vector 32: ADC Sequence 2 */
HANDLER lm3s_adc3, LM3S_IRQ_ADC3 /* Vector 33: ADC Sequence 3 */
HANDLER lm3s_wdog, LM3S_IRQ_WDOG /* Vector 34: Watchdog Timer */
HANDLER lm3s_tmr0a, LM3S_IRQ_TIMER0A /* Vector 35: Timer 0 A */
HANDLER lm3s_tmr0b, LM3S_IRQ_TIMER0B /* Vector 36: Timer 0 B */
HANDLER lm3s_tmr1a, LM3S_IRQ_TIMER1A /* Vector 37: Timer 1 A */
HANDLER lm3s_tmr1b, LM3S_IRQ_TIMER1B /* Vector 38: Timer 1 B */
HANDLER lm3s_tmr2a, LM3S_IRQ_TIMER2A /* Vector 39: Timer 2 A */
HANDLER lm3s_tmr2b, LM3S_IRQ_TIMER2B /* Vector 40: Timer 3 B */
HANDLER lm3s_cmp0, LM3S_IRQ_COMPARE0 /* Vector 41: Analog Comparator 0 */
HANDLER lm3s_dmp1, LM3S_IRQ_COMPARE1 /* Vector 42: Analog Comparator 1 */
HANDLER lm3s_syscon, LM3S_IRQ_SYSCON /* Vector 44: System Control */
HANDLER lm3s_flashcon, LM3S_IRQ_FLASHCON /* Vector 45: FLASH Control */
HANDLER lm3s_gpiof, LM3S_IRQ_GPIOF /* Vector 46: GPIO Port F */
HANDLER lm3s_gpiog, LM3S_IRQ_GPIOG /* Vector 47: GPIO Port G */
HANDLER lm3s_gpioh, LM3S_IRQ_GPIOH /* Vector 48: GPIO Port H */
HANDLER lm3s_ssi1, LM3S_IRQ_SSI1 /* Vector 50: SSI 1 */
HANDLER lm3s_tmr3a, LM3S_IRQ_TIMER3A /* Vector 51: Timer 3 A */
HANDLER lm3s_tmr3b, LM3S_IRQ_TIMER3B /* Vector 52: Timer 3 B */
HANDLER lm3s_i2c1, LM3S_IRQ_I2C1 /* Vector 53: I2C 1 */
HANDLER lm3s_eth, LM3S_IRQ_ETHCON /* Vector 58: Ethernet Controller */
HANDLER lm3s_hib, LM3S_IRQ_HIBERNATE /* Vector 59: Hibernation Module */
#else
# error "Vectors not specified for this LM3S chip"
#endif
/************************************************************************************
* .rodata
************************************************************************************/
.section .rodata, "a"
/* Variables: _sbss is the start of the BSS region (see ld.script) _ebss is the end
* of the BSS regsion (see ld.script). The idle task stack starts at the end of BSS
* and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is the thread that
* the system boots on and, eventually, becomes the idle, do nothing task that runs
* only when there is nothing else to run. The heap continues from there until the
* end of memory. See g_heapbase below.
*/
.globl g_heapbase
.type g_heapbase, object
g_heapbase:
.long _ebss+CONFIG_IDLETHREAD_STACKSIZE
.size g_heapbase, .-g_heapbase
.end
