On 2013-09-12 08:59, Hesham AL-Matary wrote:
---
  c/src/lib/libcpu/arm/shared/include/arm-cp15.h | 21 +++++++++++++++++++++
  1 file changed, 21 insertions(+)

diff --git a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h 
b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
index 0117a5e..badf96e 100644
--- a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
+++ b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
@@ -7,6 +7,7 @@
   */

  /*
+ * Copyright (c) 2013 Hesham AL-Matary
   * Copyright (c) 2009-2013 embedded brains GmbH.  All rights reserved.
   *
   *  embedded brains GmbH
@@ -139,6 +140,7 @@ extern "C" {
  #define ARM_CP15_CTRL_NMFI (1U << 27)
  #define ARM_CP15_CTRL_EE (1U << 25)
  #define ARM_CP15_CTRL_VE (1U << 24)
+#define ARM_CP15_CTRL_XP (1U << 23) // ARMv6

Please avoid // comments.

  #define ARM_CP15_CTRL_U (1U << 22)
  #define ARM_CP15_CTRL_FI (1U << 21)
  #define ARM_CP15_CTRL_UWXN (1U << 20)
@@ -173,6 +175,25 @@ extern "C" {

  /** @} */

+/**
+ * @name Fault Status Register Defines
+ *
+ * @{
+ */
+
+#define ARM_CP15_FAULT_STATUS_MASK 0x040F

What is the purpose of this mask?

How can I access the FSR?

+
+#define ARM_CP15_FSR_ALIGNMENT_FAULT   0x00000001
+#define ARM_CP15_FSR_BACKGROUND_FAULT  0x0000
+#define ARM_CP15_FSR_ACCESS_PERMISSION_FAULT 0x000D
+#define ARM_CP15_FSR_PRECISE_EXTERNAL_ABORT_FAULT 0x0008
+#define ARM_CP15_FSR_IMPRECISE_EXTERNAL_ABORT_FAULT 0x0406
+#define ARM_CP15_FSR_PRECISE_PARITY_ERROR_EXCEPTION 0x0006
+#define ARM_CP15_FSR_IMPRECISE_PARITY_ERROR_EXCEPTION 0x0408
+#define ARM_CP15_FSR_DEBUG_EVENT 0x0002
+
+/** @} */
+
  static inline uint32_t arm_cp15_get_id_code(void)
  {
    ARM_SWITCH_REGISTERS;



--
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.hu...@embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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