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>

1 files changed, 72 insertions, 0 deletions

diff --git a/arch/mips/mach-octeon/include/mach/cvmx-helper-srio.h b/arch/mips/mach-octeon/include/mach/cvmx-helper-srio.h
new file mode 100644
index 0000000000..2b7571dced
--- /dev/null
+++ b/arch/mips/mach-octeon/include/mach/cvmx-helper-srio.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ *
+ * Functions for SRIO initialization, configuration,
+ * and monitoring.
+ */
+
+#ifndef __CVMX_HELPER_SRIO_H__
+#define __CVMX_HELPER_SRIO_H__
+
+/**
+ * @INTERNAL
+ * Convert interface number to sRIO link number
+ * per SoC model.
+ *
+ * @param xiface Interface to convert
+ *
+ * @return Srio link number
+ */
+int __cvmx_helper_srio_port(int xiface);
+
+/**
+ * @INTERNAL
+ * Probe a SRIO interface and determine the number of ports
+ * connected to it. The SRIO interface should still be down after
+ * this call.
+ *
+ * @param xiface Interface to probe
+ *
+ * @return Number of ports on the interface. Zero to disable.
+ */
+int __cvmx_helper_srio_probe(int xiface);
+
+/**
+ * @INTERNAL
+ * Bringup and enable a SRIO interface. After this call packet
+ * I/O should be fully functional. This is called with IPD
+ * enabled but PKO disabled.
+ *
+ * @param xiface Interface to bring up
+ *
+ * @return Zero on success, negative on failure
+ */
+int __cvmx_helper_srio_enable(int xiface);
+
+/**
+ * @INTERNAL
+ * Return the link state of an IPD/PKO port as returned by SRIO link status.
+ *
+ * @param ipd_port IPD/PKO port to query
+ *
+ * @return Link state
+ */
+cvmx_helper_link_info_t __cvmx_helper_srio_link_get(int ipd_port);
+
+/**
+ * @INTERNAL
+ * Configure an IPD/PKO port for the specified link state. This
+ * function does not influence auto negotiation at the PHY level.
+ * The passed link state must always match the link state returned
+ * by cvmx_helper_link_get(). It is normally best to use
+ * cvmx_helper_link_autoconf() instead.
+ *
+ * @param ipd_port  IPD/PKO port to configure
+ * @param link_info The new link state
+ *
+ * @return Zero on success, negative on failure
+ */
+int __cvmx_helper_srio_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
+
+#endif