1 files changed, 78 insertions, 0 deletions

diff --git a/include/asm-cris/arch-v32/hwregs/supp_reg.h b/include/asm-cris/arch-v32/hwregs/supp_reg.h
new file mode 100644
index 000000000000..ffe49625ae36
--- /dev/null
+++ b/include/asm-cris/arch-v32/hwregs/supp_reg.h
@@ -0,0 +1,78 @@
+#ifndef __SUPP_REG_H__
+#define __SUPP_REG_H__
+
+/* Macros for reading and writing support/special registers. */
+
+#ifndef STRINGIFYFY
+#define STRINGIFYFY(i) #i
+#endif
+
+#ifndef STRINGIFY
+#define STRINGIFY(i) STRINGIFYFY(i)
+#endif
+
+#define SPEC_REG_BZ     "BZ"
+#define SPEC_REG_VR     "VR"
+#define SPEC_REG_PID    "PID"
+#define SPEC_REG_SRS    "SRS"
+#define SPEC_REG_WZ     "WZ"
+#define SPEC_REG_EXS    "EXS"
+#define SPEC_REG_EDA    "EDA"
+#define SPEC_REG_MOF    "MOF"
+#define SPEC_REG_DZ     "DZ"
+#define SPEC_REG_EBP    "EBP"
+#define SPEC_REG_ERP    "ERP"
+#define SPEC_REG_SRP    "SRP"
+#define SPEC_REG_NRP    "NRP"
+#define SPEC_REG_CCS    "CCS"
+#define SPEC_REG_USP    "USP"
+#define SPEC_REG_SPC    "SPC"
+
+#define RW_MM_CFG       0
+#define RW_MM_KBASE_LO  1
+#define RW_MM_KBASE_HI  2
+#define RW_MM_CAUSE     3
+#define RW_MM_TLB_SEL   4
+#define RW_MM_TLB_LO    5
+#define RW_MM_TLB_HI    6
+#define RW_MM_TLB_PGD   7
+
+#define BANK_GC         0
+#define BANK_IM         1
+#define BANK_DM         2
+#define BANK_BP         3
+
+#define RW_GC_CFG       0
+#define RW_GC_CCS       1
+#define RW_GC_SRS       2
+#define RW_GC_NRP       3
+#define RW_GC_EXS       4
+#define RW_GC_R0        8
+#define RW_GC_R1        9
+
+#define SPEC_REG_WR(r,v) \
+__asm__ __volatile__ ("move %0, $" r : : "r" (v));
+
+#define SPEC_REG_RD(r,v) \
+__asm__ __volatile__ ("move $" r ",%0" : "=r" (v));
+
+#define NOP() \
+        __asm__ __volatile__ ("nop");
+
+#define SUPP_BANK_SEL(b)                \
+        SPEC_REG_WR(SPEC_REG_SRS,b);    \
+        NOP();                          \
+        NOP();                          \
+        NOP();
+
+#define SUPP_REG_WR(r,v) \
+__asm__ __volatile__ ("move %0, $S" STRINGIFYFY(r) "\n\t"       \
+                      "nop\n\t"                                 \
+                      "nop\n\t"                                 \
+                      "nop\n\t"                                 \
+                      : : "r" (v));
+
+#define SUPP_REG_RD(r,v) \
+__asm__ __volatile__ ("move $S" STRINGIFYFY(r) ",%0" : "=r" (v));
+
+#endif /* __SUPP_REG_H__ */