Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / include / nios2.h

diff --git a/qemu/roms/u-boot/include/nios2.h b/qemu/roms/u-boot/include/nios2.h
new file mode 100644 (file)
index 0000000..0539ec3
--- /dev/null
+++ b/qemu/roms/u-boot/include/nios2.h
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __NIOS2_H__
+#define __NIOS2_H__
+
+/*------------------------------------------------------------------------
+ * Control registers -- use with wrctl() & rdctl()
+ *----------------------------------------------------------------------*/
+#define CTL_STATUS     0               /* Processor status reg         */
+#define CTL_ESTATUS    1               /* Exception status reg         */
+#define CTL_BSTATUS    2               /* Break status reg             */
+#define CTL_IENABLE    3               /* Interrut enable reg          */
+#define CTL_IPENDING   4               /* Interrut pending reg         */
+
+/*------------------------------------------------------------------------
+ * Access to control regs
+ *----------------------------------------------------------------------*/
+
+#define rdctl(reg) __builtin_rdctl(reg)
+#define wrctl(reg, val) __builtin_wrctl(reg, val)
+
+/*------------------------------------------------------------------------
+ * Control reg bit masks
+ *----------------------------------------------------------------------*/
+#define STATUS_IE      (1<<0)          /* Interrupt enable             */
+#define STATUS_U       (1<<1)          /* User-mode                    */
+
+/*------------------------------------------------------------------------
+ * Bit-31 Cache bypass -- only valid for data access. When data cache
+ * is not implemented, bit 31 is ignored for compatibility.
+ *----------------------------------------------------------------------*/
+#define CACHE_BYPASS(a) ((a) | 0x80000000)
+#define CACHE_NO_BYPASS(a) ((a) & ~0x80000000)
+
+#endif /* __NIOS2_H__ */