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arch: arm: aarch32: Add CMSIS extension header

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This commit adds an "extension" header for the CMSIS to provide the
core register access functions and macros that are not currently
available in the CMSIS.

The functions and macros defined in this header should be eventually
added to the upstream CMSIS and, once added, removed in this header.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit is contained in:
Stephanos Ioannidis 2020-04-08 15:43:03 +09:00 • committed by Carles Cufí
commit cc8305ee02
2 changed files with 66 additions and 0 deletions
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2
include/arch/arm/aarch32/cortex_a_r/cmsis.h
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@ -40,4 +40,6 @@ extern "C" {
#error "Unknown device" #error "Unknown device"
#endif #endif
#include <arch/arm/aarch32/cortex_a_r/cmsis_ext.h>
#endif /* ZEPHYR_INCLUDE_ARCH_ARM_AARCH32_CORTEX_A_R_CMSIS_H_ */ #endif /* ZEPHYR_INCLUDE_ARCH_ARM_AARCH32_CORTEX_A_R_CMSIS_H_ */

64
include/arch/arm/aarch32/cortex_a_r/cmsis_ext.h Normal file
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@ -0,0 +1,64 @@
/*
* Copyright (c) 2020 Stephanos Ioannidis <root@stephanos.io>
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief CMSIS extension
*
* This header provides CMSIS-style register access functions and macros that
* are not currently available in the CMSIS.
*
* NOTE: cmsis.h includes this file; do not manually include this file.
*/
#ifndef ZEPHYR_INCLUDE_ARCH_ARM_AARCH32_CORTEX_A_R_CMSIS_EXT_H_
#define ZEPHYR_INCLUDE_ARCH_ARM_AARCH32_CORTEX_A_R_CMSIS_EXT_H_
/* FSR Register Definitions */
#define FSR_FS_BACKGROUND_FAULT (0)
#define FSR_FS_ALIGNMENT_FAULT (1)
#define FSR_FS_DEBUG_EVENT (2)
#define FSR_FS_SYNC_EXTERNAL_ABORT (8)
#define FSR_FS_PERMISSION_FAULT (13)
#define FSR_FS_ASYNC_EXTERNAL_ABORT (22)
#define FSR_FS_ASYNC_PARITY_ERROR (24)
#define FSR_FS_SYNC_PARITY_ERROR (25)
/* DBGDSCR Register Definitions */
#define DBGDSCR_MOE_Pos (2U)
#define DBGDSCR_MOE_Msk (0xFUL << DBGDSCR_MOE_Pos)
#define DBGDSCR_MOE_HALT_REQUEST (0)
#define DBGDSCR_MOE_BREAKPOINT (1)
#define DBGDSCR_MOE_ASYNC_WATCHPOINT (2)
#define DBGDSCR_MOE_BKPT_INSTRUCTION (3)
#define DBGDSCR_MOE_EXT_DEBUG_REQUEST (4)
#define DBGDSCR_MOE_VECTOR_CATCH (5)
#define DBGDSCR_MOE_OS_UNLOCK_CATCH (8)
#define DBGDSCR_MOE_SYNC_WATCHPOINT (10)
__STATIC_FORCEINLINE uint32_t __get_DFAR(void)
{
uint32_t result;
__get_CP(15, 0, result, 6, 0, 0);
return result;
}
__STATIC_FORCEINLINE uint32_t __get_IFAR(void)
{
uint32_t result;
__get_CP(15, 0, result, 6, 0, 2);
return result;
}
__STATIC_FORCEINLINE uint32_t __get_DBGDSCR(void)
{
uint32_t result;
__get_CP(14, 0, result, 0, 1, 0);
return result;
}
#endif /* ZEPHYR_INCLUDE_ARCH_ARM_AARCH32_CORTEX_A_R_CMSIS_EXT_H_ */