diff options
author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
---|---|---|
committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-imx/mm-imx27.c | |
download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip |
initial_commit
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 00000000..a6761a39 --- /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> +#include <mach/gpio.h> +#include <mach/irqs.h> +#include <mach/iomux-v1.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 + */ + imx_map_entry(MX27, AIPI, MT_DEVICE), + /* + * this fixed mapping covers: + * - CSI + * - ATA + */ + imx_map_entry(MX27, SAHB1, MT_DEVICE), + /* + * this fixed mapping covers: + * - EMI + */ + imx_map_entry(MX27, X_MEMC, 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) +{ + iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc)); +} + +void __init imx27_init_early(void) +{ + mxc_set_cpu_type(MXC_CPU_MX27); + mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR)); + imx_iomuxv1_init(MX27_IO_ADDRESS(MX27_GPIO_BASE_ADDR), + MX27_NUM_GPIO_PORT); +} + +static struct mxc_gpio_port imx27_gpio_ports[] = { + DEFINE_IMX_GPIO_PORT_IRQ(MX27, 0, 1, MX27_INT_GPIO), + DEFINE_IMX_GPIO_PORT(MX27, 1, 2), + DEFINE_IMX_GPIO_PORT(MX27, 2, 3), + DEFINE_IMX_GPIO_PORT(MX27, 3, 4), + DEFINE_IMX_GPIO_PORT(MX27, 4, 5), + DEFINE_IMX_GPIO_PORT(MX27, 5, 6), +}; + +void __init mx27_init_irq(void) +{ + mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR)); + mxc_gpio_init(imx27_gpio_ports, ARRAY_SIZE(imx27_gpio_ports)); +} |