diff options
Diffstat (limited to 'arch/mips/include/asm/mach-powertv/ioremap.h')
| -rw-r--r-- | arch/mips/include/asm/mach-powertv/ioremap.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/mips/include/asm/mach-powertv/ioremap.h b/arch/mips/include/asm/mach-powertv/ioremap.h deleted file mode 100644 index e6276d5146e..00000000000 --- a/arch/mips/include/asm/mach-powertv/ioremap.h +++ /dev/null @@ -1,90 +0,0 @@ -/* - * 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. - * - * Portions Copyright (C) Cisco Systems, Inc. - */ -#ifndef __ASM_MACH_POWERTV_IOREMAP_H -#define __ASM_MACH_POWERTV_IOREMAP_H - -#include <linux/types.h> - -#define LOW_MEM_BOUNDARY_PHYS 0x20000000 -#define LOW_MEM_BOUNDARY_MASK (~(LOW_MEM_BOUNDARY_PHYS - 1)) - -/* - * The bus addresses are different than the physical addresses that - * the processor sees by an offset. This offset varies by ASIC - * version. Define a variable to hold the offset and some macros to - * make the conversion simpler. */ -extern unsigned long phys_to_bus_offset; - -#ifdef CONFIG_HIGHMEM -#define MEM_GAP_PHYS 0x60000000 -/* - * TODO: We will use the hard code for conversion between physical and - * bus until the bootloader releases their device tree to us. - */ -#define phys_to_bus(x) (((x) < LOW_MEM_BOUNDARY_PHYS) ? \ - ((x) + phys_to_bus_offset) : (x)) -#define bus_to_phys(x) (((x) < MEM_GAP_PHYS_ADDR) ? \ - ((x) - phys_to_bus_offset) : (x)) -#else -#define phys_to_bus(x) ((x) + phys_to_bus_offset) -#define bus_to_phys(x) ((x) - phys_to_bus_offset) -#endif - -/* - * Determine whether the address we are given is for an ASIC device - * Params: addr Address to check - * Returns: Zero if the address is not for ASIC devices, non-zero - * if it is. - */ -static inline int asic_is_device_addr(phys_t addr) -{ - return !((phys_t)addr & (phys_t) LOW_MEM_BOUNDARY_MASK); -} - -/* - * Determine whether the address we are given is external RAM mappable - * into KSEG1. - * Params: addr Address to check - * Returns: Zero if the address is not for external RAM and - */ -static inline int asic_is_lowmem_ram_addr(phys_t addr) -{ - /* - * The RAM always starts at the following address in the processor's - * physical address space - */ - static const phys_t phys_ram_base = 0x10000000; - phys_t bus_ram_base; - - bus_ram_base = phys_to_bus_offset + phys_ram_base; - - return addr >= bus_ram_base && - addr < (bus_ram_base + (LOW_MEM_BOUNDARY_PHYS - phys_ram_base)); -} - -/* - * Allow physical addresses to be fixed up to help peripherals located - * outside the low 32-bit range -- generic pass-through version. - */ -static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size) -{ - return phys_addr; -} - -static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size, - unsigned long flags) -{ - return NULL; -} - -static inline int plat_iounmap(const volatile void __iomem *addr) -{ - return 0; -} -#endif /* __ASM_MACH_POWERTV_IOREMAP_H */ |
