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[ARM] 4461/1: MXC platform and i.MX31ADS core support

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This patch adds the foundation pieces for
the Freescale MXC platforms, including
i.MX2 and i.MX3 based systems.

The bare-bones MX31 support in this patch
boots to the rootdev panic with 8250 serial
console configured "console=ttyS0,115200".
It assumes that Redboot is the boot loader.

Signed-off-by: Quinn Jensen <quinn.jensen@freescale.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Quinn Jensen
2007-07-09 22:06:53 +01:00
committed by Russell King
parent 4b300c362d
commit 52c543f90c
26 changed files with 1563 additions and 2 deletions
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64
arch/arm/mach-mx3/mm.c Normal file
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/*
* 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));
}