Wolfgang Denk
17 years ago
commit
7f20221735
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#ifndef __ADDR_MAP_H |
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#define __ADDR_MAP_H |
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/*
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* Copyright 2008 Freescale Semiconductor, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* Version 2 as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <asm/types.h> |
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extern phys_addr_t addrmap_virt_to_phys(void *vaddr); |
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extern unsigned long addrmap_phys_to_virt(phys_addr_t paddr); |
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extern void addrmap_set_entry(unsigned long vaddr, phys_addr_t paddr, |
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phys_size_t size, int idx); |
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#endif |
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@ -0,0 +1,81 @@ |
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/*
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* Copyright 2008 Freescale Semiconductor, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* Version 2 as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#include <addr_map.h> |
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static struct { |
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phys_addr_t paddr; |
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phys_size_t size; |
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unsigned long vaddr; |
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} address_map[CONFIG_SYS_NUM_ADDR_MAP]; |
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phys_addr_t addrmap_virt_to_phys(void * vaddr) |
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{ |
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int i; |
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for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++) { |
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u64 base, upper, addr; |
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if (address_map[i].size == 0) |
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continue; |
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addr = (u64)((u32)vaddr); |
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base = (u64)(address_map[i].vaddr); |
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upper = (u64)(address_map[i].size) + base - 1; |
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if (addr >= base && addr <= upper) { |
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return addr - address_map[i].vaddr + address_map[i].paddr; |
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} |
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} |
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return (phys_addr_t)(~0); |
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} |
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unsigned long addrmap_phys_to_virt(phys_addr_t paddr) |
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{ |
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int i; |
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for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++) { |
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u64 base, upper, addr; |
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if (address_map[i].size == 0) |
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continue; |
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addr = (u64)paddr; |
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base = (u64)(address_map[i].paddr); |
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upper = (u64)(address_map[i].size) + base - 1; |
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if (addr >= base && addr <= upper) { |
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return paddr - address_map[i].paddr + address_map[i].vaddr; |
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} |
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} |
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return (unsigned long)(~0); |
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} |
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void addrmap_set_entry(unsigned long vaddr, phys_addr_t paddr, |
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phys_size_t size, int idx) |
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{ |
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if (idx > CONFIG_SYS_NUM_ADDR_MAP) |
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return; |
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address_map[idx].vaddr = vaddr; |
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address_map[idx].paddr = paddr; |
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address_map[idx].size = size; |
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} |
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