mips: octeon: Add misc remaining header files

Import misc remaining header files from 2013 U-Boot. These 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>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

1 files changed, 113 insertions, 0 deletions

diff --git a/arch/mips/mach-octeon/include/mach/cvmx-scratch.h b/arch/mips/mach-octeon/include/mach/cvmx-scratch.h
new file mode 100644
index 00000000000..d567a8453b7
--- /dev/null
+++ b/arch/mips/mach-octeon/include/mach/cvmx-scratch.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ *
+ * This file provides support for the processor local scratch memory.
+ * Scratch memory is byte addressable - all addresses are byte addresses.
+ */
+
+#ifndef __CVMX_SCRATCH_H__
+#define __CVMX_SCRATCH_H__
+
+/* Note: This define must be a long, not a long long in order to compile
+	without warnings for both 32bit and 64bit. */
+#define CVMX_SCRATCH_BASE (-32768l) /* 0xffffffffffff8000 */
+
+/* Scratch line for LMTST/LMTDMA on Octeon3 models */
+#ifdef CVMX_CAVIUM_OCTEON3
+#define CVMX_PKO_LMTLINE 2ull
+#endif
+
+/**
+ * Reads an 8 bit value from the processor local scratchpad memory.
+ *
+ * @param address byte address to read from
+ *
+ * @return value read
+ */
+static inline u8 cvmx_scratch_read8(u64 address)
+{
+	return *CASTPTR(volatile u8, CVMX_SCRATCH_BASE + address);
+}
+
+/**
+ * Reads a 16 bit value from the processor local scratchpad memory.
+ *
+ * @param address byte address to read from
+ *
+ * @return value read
+ */
+static inline u16 cvmx_scratch_read16(u64 address)
+{
+	return *CASTPTR(volatile u16, CVMX_SCRATCH_BASE + address);
+}
+
+/**
+ * Reads a 32 bit value from the processor local scratchpad memory.
+ *
+ * @param address byte address to read from
+ *
+ * @return value read
+ */
+static inline u32 cvmx_scratch_read32(u64 address)
+{
+	return *CASTPTR(volatile u32, CVMX_SCRATCH_BASE + address);
+}
+
+/**
+ * Reads a 64 bit value from the processor local scratchpad memory.
+ *
+ * @param address byte address to read from
+ *
+ * @return value read
+ */
+static inline u64 cvmx_scratch_read64(u64 address)
+{
+	return *CASTPTR(volatile u64, CVMX_SCRATCH_BASE + address);
+}
+
+/**
+ * Writes an 8 bit value to the processor local scratchpad memory.
+ *
+ * @param address byte address to write to
+ * @param value   value to write
+ */
+static inline void cvmx_scratch_write8(u64 address, u64 value)
+{
+	*CASTPTR(volatile u8, CVMX_SCRATCH_BASE + address) = (u8)value;
+}
+
+/**
+ * Writes a 32 bit value to the processor local scratchpad memory.
+ *
+ * @param address byte address to write to
+ * @param value   value to write
+ */
+static inline void cvmx_scratch_write16(u64 address, u64 value)
+{
+	*CASTPTR(volatile u16, CVMX_SCRATCH_BASE + address) = (u16)value;
+}
+
+/**
+ * Writes a 16 bit value to the processor local scratchpad memory.
+ *
+ * @param address byte address to write to
+ * @param value   value to write
+ */
+static inline void cvmx_scratch_write32(u64 address, u64 value)
+{
+	*CASTPTR(volatile u32, CVMX_SCRATCH_BASE + address) = (u32)value;
+}
+
+/**
+ * Writes a 64 bit value to the processor local scratchpad memory.
+ *
+ * @param address byte address to write to
+ * @param value   value to write
+ */
+static inline void cvmx_scratch_write64(u64 address, u64 value)
+{
+	*CASTPTR(volatile u64, CVMX_SCRATCH_BASE + address) = value;
+}
+
+#endif /* __CVMX_SCRATCH_H__ */