diff options
Diffstat (limited to 'arch/arm/mach-imx/mm-imx25.c')
| -rw-r--r-- | arch/arm/mach-imx/mm-imx25.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mm-imx25.c b/arch/arm/mach-imx/mm-imx25.c new file mode 100644 index 00000000..02f7b5c7 --- /dev/null +++ b/arch/arm/mach-imx/mm-imx25.c @@ -0,0 +1,72 @@ +/* + * 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. + */ + +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/err.h> + +#include <asm/pgtable.h> +#include <asm/mach/map.h> + +#include <mach/common.h> +#include <mach/hardware.h> +#include <mach/mx25.h> +#include <mach/iomux-v3.h> +#include <mach/gpio.h> +#include <mach/irqs.h> + +/* + * This table defines static virtual address mappings for I/O regions. + * These are the mappings common across all MX25 boards. + */ +static struct map_desc mx25_io_desc[] __initdata = { + imx_map_entry(MX25, AVIC, MT_DEVICE_NONSHARED), + imx_map_entry(MX25, AIPS1, MT_DEVICE_NONSHARED), + imx_map_entry(MX25, AIPS2, MT_DEVICE_NONSHARED), +}; + +/* + * 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 mx25_map_io(void) +{ + iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc)); +} + +void __init imx25_init_early(void) +{ + mxc_set_cpu_type(MXC_CPU_MX25); + mxc_iomux_v3_init(MX25_IO_ADDRESS(MX25_IOMUXC_BASE_ADDR)); + mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR)); +} + +static struct mxc_gpio_port imx25_gpio_ports[] = { + DEFINE_IMX_GPIO_PORT_IRQ(MX25, 0, 1, MX25_INT_GPIO1), + DEFINE_IMX_GPIO_PORT_IRQ(MX25, 1, 2, MX25_INT_GPIO2), + DEFINE_IMX_GPIO_PORT_IRQ(MX25, 2, 3, MX25_INT_GPIO3), + DEFINE_IMX_GPIO_PORT_IRQ(MX25, 3, 4, MX25_INT_GPIO4), +}; + +void __init mx25_init_irq(void) +{ + mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR)); + mxc_gpio_init(imx25_gpio_ports, ARRAY_SIZE(imx25_gpio_ports)); +} + |