From eea643f7ff04fe17c3ff71d41a9487c0753bd821 Mon Sep 17 00:00:00 2001 From: Juergen Beisert Date: Sat, 5 Jul 2008 10:02:56 +0200 Subject: i.MX2 family: Add basic mach support (sources) This patch adds basic mach support for the mx2 processor family, based on the original freescale code and adapted to mainline kernel coding style. Signed-off-by: Juergen Beisert --- arch/arm/mach-mx2/generic.c | 74 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 arch/arm/mach-mx2/generic.c (limited to 'arch/arm/mach-mx2/generic.c') diff --git a/arch/arm/mach-mx2/generic.c b/arch/arm/mach-mx2/generic.c new file mode 100644 index 000000000000..07875cf00de9 --- /dev/null +++ b/arch/arm/mach-mx2/generic.c @@ -0,0 +1,74 @@ +/* + * generic.c + * + * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include +#include +#include +#include +#include + +/* MX27 memory map definition */ +static struct map_desc mxc_io_desc[] __initdata = { + /* + * this fixed mapping covers: + * - AIPI1 + * - AIPI2 + * - AITC + * - ROM Patch + * - and some reserved space + */ + { + .virtual = AIPI_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(AIPI_BASE_ADDR), + .length = AIPI_SIZE, + .type = MT_DEVICE + }, + /* + * this fixed mapping covers: + * - CSI + * - ATA + */ + { + .virtual = SAHB1_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(SAHB1_BASE_ADDR), + .length = SAHB1_SIZE, + .type = MT_DEVICE + }, + /* + * this fixed mapping covers: + * - EMI + */ + { + .virtual = X_MEMC_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR), + .length = X_MEMC_SIZE, + .type = MT_DEVICE + } +}; + +/* + * Initialize the memory map. It is called during the + * system startup to create static physical to virtual + * memory map for the IO modules. + */ +void __init mxc_map_io(void) +{ + iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); +} -- cgit v1.2.2