[PATCH 02/18] bsp/arm: Invalidate SCU

[Ralf Kirchner]

---
 c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-regs.h  |   12 ++++++++++++
 c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-start.h |   10 ++++++++++
 2 Dateien geändert, 22 Zeilen hinzugefügt(+)

diff --git a/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-regs.h b/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-regs.h
index 0910e4c..28640d2 100644
--- a/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-regs.h
+++ b/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-regs.h
@@ -46,6 +46,18 @@ typedef struct {
 #define A9MPCORE_SCU_CFG_TAG_RAM_SIZE_SET(reg, val) BSP_FLD32SET(reg, val, 8, 15)
   uint32_t pwrst;
   uint32_t invss;
+#define A9MPCORE_SCU_INVSS_CPU0(ways) BSP_FLD32(val, 0, 3)
+#define A9MPCORE_SCU_INVSS_CPU0_GET(reg) /* Write only register */
+#define A9MPCORE_SCU_INVSS_CPU0_SET(reg, val) BSP_FLD32SET(reg, val, 0, 3)
+#define A9MPCORE_SCU_INVSS_CPU1(ways) BSP_FLD32(val, 4, 7)
+#define A9MPCORE_SCU_INVSS_CPU1_GET(reg) /* Write only register */
+#define A9MPCORE_SCU_INVSS_CPU1_SET(reg, val) BSP_FLD32SET(reg, val, 4, 7)
+#define A9MPCORE_SCU_INVSS_CPU2(ways) BSP_FLD32(val, 8, 11)
+#define A9MPCORE_SCU_INVSS_CPU2_GET(reg) /* Write only register */
+#define A9MPCORE_SCU_INVSS_CPU2_SET(reg, val) BSP_FLD32SET(reg, val, 8, 11)
+#define A9MPCORE_SCU_INVSS_CPU3(ways) BSP_FLD32(val, 12, 15)
+#define A9MPCORE_SCU_INVSS_CPU3_GET(reg) /* Write only register */
+#define A9MPCORE_SCU_INVSS_CPU3_SET(reg, val) BSP_FLD32SET(reg, val, 12, 15)
   uint32_t reserved_10[12];
   uint32_t fltstart;
   uint32_t fltend;
diff --git a/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-start.h b/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-start.h
index dd1b7c1..ad4cf42 100644
--- a/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-start.h
+++ b/c/src/lib/libbsp/arm/shared/include/arm-a9mpcore-start.h
@@ -70,6 +70,13 @@ BSP_START_TEXT_SECTION static inline arm_a9mpcore_start_set_vector_base(void)
   }
 }
 
+BSP_START_TEXT_SECTION static inline arm_a9mpcore_start_scu_invalidate(const uint32_t cpu_id, const uint32_t ways)
+{
+  volatile a9mpcore_scu *scu = (volatile a9mpcore_scu *) BSP_ARM_A9MPCORE_SCU_BASE;
+  
+  scu->invss = ( ( ways & 0xF ) << ( ( cpu_id & 0x3 ) * 4 ) );
+}
+
 BSP_START_TEXT_SECTION static inline arm_a9mpcore_start_hook_0(void)
 {
 #ifdef RTEMS_SMP
@@ -86,6 +93,9 @@ BSP_START_TEXT_SECTION static inline arm_a9mpcore_start_hook_0(void)
   arm_cp15_set_auxiliary_control(actlr);
 
   cpu_id = arm_cortex_a9_get_multiprocessor_cpu_id();
+  
+  arm_a9mpcore_start_scu_invalidate(cpu_id, 0xF);
+  
   if (cpu_id != 0) {
     arm_a9mpcore_start_set_vector_base();
 
-- 
1.7.10.4