/* * DaVinci memory space definitions * * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> * * 2007 (c) MontaVista Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_H /************************************************************************** * Included Files **************************************************************************/ #include <asm/page.h> #include <asm/sizes.h> /************************************************************************** * Definitions **************************************************************************/ #define DAVINCI_DDR_BASE 0x80000000 #define DAVINCI_IRAM_BASE 0x00008000 /* ARM Internal RAM */ #define PHYS_OFFSET DAVINCI_DDR_BASE /* * Increase size of DMA-consistent memory region */ #define CONSISTENT_DMA_SIZE (14<<20) #ifndef __ASSEMBLY__ /* * Restrict DMA-able region to workaround silicon bug. The bug * restricts buffers available for DMA to video hardware to be * below 128M */ static inline void __arch_adjust_zones(int node, unsigned long *size, unsigned long *holes) { unsigned int sz = (128<<20) >> PAGE_SHIFT; if (node != 0) sz = 0; size[1] = size[0] - sz; size[0] = sz; } #define arch_adjust_zones(node, zone_size, holes) \ if ((meminfo.bank[0].size >> 20) > 128) __arch_adjust_zones(node, zone_size, holes) #define ISA_DMA_THRESHOLD (PHYS_OFFSET + (128<<20) - 1) #endif /* * Bus address is physical address */ #define __virt_to_bus(x) __virt_to_phys(x) #define __bus_to_virt(x) __phys_to_virt(x) #endif /* __ASM_ARCH_MEMORY_H */