diff options
Diffstat (limited to 'arch/arm/mach-imx/mm-imx27.c')
-rw-r--r-- | arch/arm/mach-imx/mm-imx27.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mm-imx27.c b/arch/arm/mach-imx/mm-imx27.c new file mode 100644 index 00000000000..bcedce9c87d --- /dev/null +++ b/arch/arm/mach-imx/mm-imx27.c @@ -0,0 +1,86 @@ +/* + * arch/arm/mach-imx/mm-imx27.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 <linux/mm.h> +#include <linux/init.h> +#include <mach/hardware.h> +#include <mach/common.h> +#include <asm/pgtable.h> +#include <asm/mach/map.h> + +/* MX27 memory map definition */ +static struct map_desc imx27_io_desc[] __initdata = { + /* + * this fixed mapping covers: + * - AIPI1 + * - AIPI2 + * - AITC + * - ROM Patch + * - and some reserved space + */ + { + .virtual = MX27_AIPI_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(MX27_AIPI_BASE_ADDR), + .length = MX27_AIPI_SIZE, + .type = MT_DEVICE + }, + /* + * this fixed mapping covers: + * - CSI + * - ATA + */ + { + .virtual = MX27_SAHB1_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(MX27_SAHB1_BASE_ADDR), + .length = MX27_SAHB1_SIZE, + .type = MT_DEVICE + }, + /* + * this fixed mapping covers: + * - EMI + */ + { + .virtual = MX27_X_MEMC_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(MX27_X_MEMC_BASE_ADDR), + .length = MX27_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 mx27_map_io(void) +{ + mxc_set_cpu_type(MXC_CPU_MX27); + mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR)); + + iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc)); +} + +int imx27_register_gpios(void); + +void __init mx27_init_irq(void) +{ + imx27_register_gpios(); + mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR)); +} |