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Diffstat (limited to 'arch/arm/mach-mx3/mm.c')
-rw-r--r-- | arch/arm/mach-mx3/mm.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mm.c b/arch/arm/mach-mx3/mm.c new file mode 100644 index 0000000..41dad48 --- /dev/null +++ b/arch/arm/mach-mx3/mm.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 1999,2000 Arm Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * Copyright (C) 2002 Shane Nay (shane@minirl.com) + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * - add MX31 specific definitions + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/mm.h> +#include <linux/init.h> +#include <asm/hardware.h> +#include <asm/pgtable.h> +#include <asm/mach/map.h> +#include <asm/arch/common.h> + +/*! + * @file mm.c + * + * @brief This file creates static virtual to physical mappings, common to all MX3 boards. + * + * @ingroup Memory + */ + +/*! + * This table defines static virtual address mappings for I/O regions. + * These are the mappings common across all MX3 boards. + */ +static struct map_desc mxc_io_desc[] __initdata = { + { + .virtual = X_MEMC_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR), + .length = X_MEMC_SIZE, + .type = MT_DEVICE + }, { + .virtual = AVIC_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(AVIC_BASE_ADDR), + .length = AVIC_SIZE, + .type = MT_NONSHARED_DEVICE + }, +}; + +/*! + * This function initializes the memory map. It is called during the + * system startup to create static physical to virtual memory mappings + * for the IO modules. + */ +void __init mxc_map_io(void) +{ + iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); +} |