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[rpikern] / src / sysctl.S

diff --git a/src/sysctl.S b/src/sysctl.S
new file mode 100644 (file)
index 0000000..8112d7b
--- /dev/null
+++ b/src/sysctl.S
@@ -0,0 +1,25 @@
+       .text
+       .code 32
+
+@ wait for interrupt
+#define C7_CRM_WFI      c0
+#define C7_OP2_WFI      4
+@ clean/inval operations
+#define C7_CRM_I_INVAL  c5             @ invalidate instruction cache
+#define C7_CRM_D_INVAL  c6             @ invalidate data cache
+#define C7_CRM_INVAL    c7             @ invalidate both (reg = 0)
+#define C7_OP2_INVAL    0
+#define C7_CRM_D_CLEAN  c10            @ clean data cache
+#define C7_CRM_D_CLEAN_INVAL    c14    @ clean and invalidate data cache
+@ OP2 for cache clean/inval operations
+#define C7_OP2_ALL      0      @ reg = 0
+#define C7_OP2_ADDR     1
+#define C7_OP2_IDX      2
+@ data synchronization barrier
+#define C7_CRM_DSB      c10
+#define C7_OP2_DSB      4
+@ data memory barrier
+#define C7_CRM_DMB      c10
+#define C7_OP2_DMB      5
+
+@ vi:set filetype=armasm: