mips: octeon: Add misc cvmx-helper header files

Import misc cvmx-helper header files from 2013 U-Boot. They will be used
by the later added drivers to support PCIe and networking on the MIPS
Octeon II / III platforms.

Signed-off-by: Aaron Williams <awilliams@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/mips/mach-octeon/include/mach/cvmx-helper-pko.h b/arch/mips/mach-octeon/include/mach/cvmx-helper-pko.h
new file mode 100644
index 0000000..806102d
--- /dev/null
+++ b/arch/mips/mach-octeon/include/mach/cvmx-helper-pko.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ *
+ * PKO helper, configuration API
+ */
+
+#ifndef __CVMX_HELPER_PKO_H__
+#define __CVMX_HELPER_PKO_H__
+
+/* CSR typedefs have been moved to cvmx-pko-defs.h */
+
+/**
+ * cvmx_override_pko_queue_priority(int ipd_port, u64
+ * priorities[16]) is a function pointer. It is meant to allow
+ * customization of the PKO queue priorities based on the port
+ * number. Users should set this pointer to a function before
+ * calling any cvmx-helper operations.
+ */
+void (*cvmx_override_pko_queue_priority)(int ipd_port, u8 *priorities);
+
+/**
+ * Gets the fpa pool number of pko pool
+ */
+s64 cvmx_fpa_get_pko_pool(void);
+
+/**
+ * Gets the buffer size of pko pool
+ */
+u64 cvmx_fpa_get_pko_pool_block_size(void);
+
+/**
+ * Gets the buffer size  of pko pool
+ */
+u64 cvmx_fpa_get_pko_pool_buffer_count(void);
+
+int cvmx_helper_pko_init(void);
+
+/*
+ * This function is a no-op
+ * included here for backwards compatibility only.
+ */
+static inline int cvmx_pko_initialize_local(void)
+{
+	return 0;
+}
+
+int __cvmx_helper_pko_drain(void);
+int __cvmx_helper_interface_setup_pko(int interface);
+
+#endif /* __CVMX_HELPER_PKO_H__ */