| /* | |
| * 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 */ |