1 files changed, 67 insertions, 0 deletions
diff --git a/payloads/libpayload/include/mips/arch/io.h b/payloads/libpayload/include/mips/arch/io.h
new file mode 100644
index 0000000000..d2d9338037
--- /dev/null
+++ b/payloads/libpayload/include/mips/arch/io.h
@@ -0,0 +1,67 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2014 Imagination Technologies
+ *
+ * Based on arch/armv7/include/arch/io.h:
+ *   Copyright 2013 Google Inc.
+ *   Copyright (C) 1996-2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __MIPS_ARCH_IO_H__
+#define __MIPS_ARCH_IO_H__
+
+#include <arch/types.h>
+#include <arch/cache.h>
+#include <arch/byteorder.h>
+
+#define read8(a)	(*(volatile uint8_t *) (a))
+#define read16(a)	(*(volatile uint16_t *) (a))
+#define read32(a)	(*(volatile uint32_t *) (a))
+
+#define write8(v, a)	(*(volatile uint8_t *) (a) = (v))
+#define write16(v, a)	(*(volatile uint16_t *) (a) = (v))
+#define write32(v, a)	(*(volatile uint32_t *) (a) = (v))
+
+
+/*
+ * Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single call. These macros can
+ * also be used to set a multiple-bit bit pattern using a mask, by
+ * specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+
+#define out_arch(type, endian, a, v)	write##type(cpu_to_##endian(v), a)
+#define in_arch(type, endian, a)	endian##_to_cpu(read##type(a))
+
+#define readb(a)	read8(a)
+#define readw(a)	read16(a)
+#define readl(a)	read32(a)
+
+#define inb(a)		read8(a)
+#define inw(a)		read16(a)
+#define inl(a)		read32(a)
+
+#define writeb(v, a)	write8(v, a)
+#define writew(v, a)	write16(v, a)
+#define writel(v, a)	write32(v, a)
+
+#define outb(v, a)	write8(v, a)
+#define outw(v, a)	write16(v, a)
+#define outl(v, a)	write32(v, a)
+
+#endif	/* __MIPS_ARCH_IO_H__ */