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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-mx5/mm-mx50.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-mx5/mm-mx50.c')
-rw-r--r-- | arch/arm/mach-mx5/mm-mx50.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mm-mx50.c b/arch/arm/mach-mx5/mm-mx50.c new file mode 100644 index 00000000..b9c363b5 --- /dev/null +++ b/arch/arm/mach-mx5/mm-mx50.c @@ -0,0 +1,72 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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. + * + * Create static mapping between physical to virtual memory. + */ + +#include <linux/mm.h> +#include <linux/init.h> + +#include <asm/mach/map.h> + +#include <mach/hardware.h> +#include <mach/common.h> +#include <mach/iomux-v3.h> +#include <mach/gpio.h> +#include <mach/irqs.h> + +/* + * Define the MX50 memory map. + */ +static struct map_desc mx50_io_desc[] __initdata = { + imx_map_entry(MX50, TZIC, MT_DEVICE), + imx_map_entry(MX50, SPBA0, MT_DEVICE), + imx_map_entry(MX50, AIPS1, MT_DEVICE), + imx_map_entry(MX50, AIPS2, MT_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 mx50_map_io(void) +{ + iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc)); +} + +void __init imx50_init_early(void) +{ + mxc_set_cpu_type(MXC_CPU_MX50); + mxc_iomux_v3_init(MX50_IO_ADDRESS(MX50_IOMUXC_BASE_ADDR)); + mxc_arch_reset_init(MX50_IO_ADDRESS(MX50_WDOG_BASE_ADDR)); +} + +static struct mxc_gpio_port imx50_gpio_ports[] = { + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 0, 1, MX50_INT_GPIO1_LOW, MX50_INT_GPIO1_HIGH), + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 1, 2, MX50_INT_GPIO2_LOW, MX50_INT_GPIO2_HIGH), + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 2, 3, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH), + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 3, 4, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH), + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 4, 5, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH), + DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 5, 6, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH), +}; + +void __init mx50_init_irq(void) +{ + tzic_init_irq(MX50_IO_ADDRESS(MX50_TZIC_BASE_ADDR)); + mxc_gpio_init(imx50_gpio_ports, ARRAY_SIZE(imx50_gpio_ports)); +} |