| /* |
| * 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__ */ |