From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-ixp23xx/include/mach/memory.h | 34 +++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 arch/arm/mach-ixp23xx/include/mach/memory.h (limited to 'arch/arm/mach-ixp23xx/include/mach/memory.h') diff --git a/arch/arm/mach-ixp23xx/include/mach/memory.h b/arch/arm/mach-ixp23xx/include/mach/memory.h new file mode 100644 index 00000000..6cf0704e --- /dev/null +++ b/arch/arm/mach-ixp23xx/include/mach/memory.h @@ -0,0 +1,34 @@ +/* + * arch/arm/mach-ixp23xx/include/mach/memory.h + * + * Copyright (c) 2003-2004 Intel Corp. + * + * 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; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#include + +/* + * Physical DRAM offset. + */ +#define PLAT_PHYS_OFFSET (0x00000000) + +#define IXP23XX_PCI_SDRAM_OFFSET (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0) + +#define __phys_to_bus(x) ((x) + (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET)) +#define __bus_to_phys(x) ((x) - (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET)) + +#define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v)) +#define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b)) +#define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p)) +#define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b)) + +#define arch_is_coherent() 1 + +#endif -- cgit v1.2.3