diff options
Diffstat (limited to 'Drivers/CMSIS/DSP/DSP_Lib_TestSuite/DspLibTest_FVP_A5/RTE/Device/ARMCA5/startup_ARMCA5.c')
| -rw-r--r-- | Drivers/CMSIS/DSP/DSP_Lib_TestSuite/DspLibTest_FVP_A5/RTE/Device/ARMCA5/startup_ARMCA5.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/DspLibTest_FVP_A5/RTE/Device/ARMCA5/startup_ARMCA5.c b/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/DspLibTest_FVP_A5/RTE/Device/ARMCA5/startup_ARMCA5.c new file mode 100644 index 000000000..535a2005d --- /dev/null +++ b/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/DspLibTest_FVP_A5/RTE/Device/ARMCA5/startup_ARMCA5.c @@ -0,0 +1,138 @@ +/****************************************************************************** + * @file startup_ARMCA5.c + * @brief CMSIS Device System Source File for Arm Cortex-A5 Device Series + * @version V1.00 + * @date 10. January 2018 + * + * @note + * + ******************************************************************************/ +/* + * Copyright (c) 2009-2018 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <ARMCA5.h> + +/*---------------------------------------------------------------------------- + Definitions + *----------------------------------------------------------------------------*/ +#define USR_MODE 0x10 // User mode +#define FIQ_MODE 0x11 // Fast Interrupt Request mode +#define IRQ_MODE 0x12 // Interrupt Request mode +#define SVC_MODE 0x13 // Supervisor mode +#define ABT_MODE 0x17 // Abort mode +#define UND_MODE 0x1B // Undefined Instruction mode +#define SYS_MODE 0x1F // System mode + +/*---------------------------------------------------------------------------- + Internal References + *----------------------------------------------------------------------------*/ +void Vectors (void) __attribute__ ((naked, section("RESET"))); +void Reset_Handler (void) __attribute__ ((naked)); + +/*---------------------------------------------------------------------------- + Exception / Interrupt Handler + *----------------------------------------------------------------------------*/ +void Undef_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SVC_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void PAbt_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void DAbt_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void IRQ_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void FIQ_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); + +/*---------------------------------------------------------------------------- + Exception / Interrupt Vector Table + *----------------------------------------------------------------------------*/ +void Vectors(void) { + __ASM volatile( + "LDR PC, =Reset_Handler \n" + "LDR PC, =Undef_Handler \n" + "LDR PC, =SVC_Handler \n" + "LDR PC, =PAbt_Handler \n" + "LDR PC, =DAbt_Handler \n" + "NOP \n" + "LDR PC, =IRQ_Handler \n" + "LDR PC, =FIQ_Handler \n" + ); +} + +/*---------------------------------------------------------------------------- + Reset Handler called on controller reset + *----------------------------------------------------------------------------*/ +void Reset_Handler(void) { + __ASM volatile( + + // Mask interrupts + "CPSID if \n" + + // Put any cores other than 0 to sleep + "MRC p15, 0, R0, c0, c0, 5 \n" // Read MPIDR + "ANDS R0, R0, #3 \n" + "goToSleep: \n" + "WFINE \n" + "BNE goToSleep \n" + + // Reset SCTLR Settings + "MRC p15, 0, R0, c1, c0, 0 \n" // Read CP15 System Control register + "BIC R0, R0, #(0x1 << 12) \n" // Clear I bit 12 to disable I Cache + "BIC R0, R0, #(0x1 << 2) \n" // Clear C bit 2 to disable D Cache + "BIC R0, R0, #0x1 \n" // Clear M bit 0 to disable MMU + "BIC R0, R0, #(0x1 << 11) \n" // Clear Z bit 11 to disable branch prediction + "BIC R0, R0, #(0x1 << 13) \n" // Clear V bit 13 to disable hivecs + "MCR p15, 0, R0, c1, c0, 0 \n" // Write value back to CP15 System Control register + "ISB \n" + + // Configure ACTLR + "MRC p15, 0, r0, c1, c0, 1 \n" // Read CP15 Auxiliary Control Register + "ORR r0, r0, #(1 << 1) \n" // Enable L2 prefetch hint (UNK/WI since r4p1) + "MCR p15, 0, r0, c1, c0, 1 \n" // Write CP15 Auxiliary Control Register + + // Set Vector Base Address Register (VBAR) to point to this application's vector table + "LDR R0, =Vectors \n" + "MCR p15, 0, R0, c12, c0, 0 \n" + + // Setup Stack for each exceptional mode + "CPS #0x11 \n" + "LDR SP, =Image$$FIQ_STACK$$ZI$$Limit \n" + "CPS #0x12 \n" + "LDR SP, =Image$$IRQ_STACK$$ZI$$Limit \n" + "CPS #0x13 \n" + "LDR SP, =Image$$SVC_STACK$$ZI$$Limit \n" + "CPS #0x17 \n" + "LDR SP, =Image$$ABT_STACK$$ZI$$Limit \n" + "CPS #0x1B \n" + "LDR SP, =Image$$UND_STACK$$ZI$$Limit \n" + "CPS #0x1F \n" + "LDR SP, =Image$$ARM_LIB_STACK$$ZI$$Limit \n" + + // Call SystemInit + "BL SystemInit \n" + + // Unmask interrupts + "CPSIE if \n" + + // Call __main + "BL __main \n" + ); +} + +/*---------------------------------------------------------------------------- + Default Handler for Exceptions / Interrupts + *----------------------------------------------------------------------------*/ +void Default_Handler(void) { + while(1); +} |