diff options
Diffstat (limited to 'kernel/arch/arm/mach-imx/mm-imx21.c')
| -rw-r--r-- | kernel/arch/arm/mach-imx/mm-imx21.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mm-imx21.c b/kernel/arch/arm/mach-imx/mm-imx21.c new file mode 100644 index 000000000..2e91ab2ca --- /dev/null +++ b/kernel/arch/arm/mach-imx/mm-imx21.c @@ -0,0 +1,99 @@ +/* + * arch/arm/mach-imx/mm-imx21.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 <linux/pinctrl/machine.h> +#include <asm/pgtable.h> +#include <asm/mach/map.h> + +#include "common.h" +#include "devices/devices-common.h" +#include "hardware.h" +#include "iomux-v1.h" + +/* MX21 memory map definition */ +static struct map_desc imx21_io_desc[] __initdata = { + /* + * this fixed mapping covers: + * - AIPI1 + * - AIPI2 + * - AITC + * - ROM Patch + * - and some reserved space + */ + imx_map_entry(MX21, AIPI, MT_DEVICE), + /* + * this fixed mapping covers: + * - CSI + * - ATA + */ + imx_map_entry(MX21, SAHB1, MT_DEVICE), + /* + * this fixed mapping covers: + * - EMI + */ + imx_map_entry(MX21, 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 mx21_map_io(void) +{ + iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc)); +} + +void __init imx21_init_early(void) +{ + mxc_set_cpu_type(MXC_CPU_MX21); + imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR), + MX21_NUM_GPIO_PORT); +} + +void __init mx21_init_irq(void) +{ + mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR)); +} + +static const struct resource imx21_audmux_res[] __initconst = { + DEFINE_RES_MEM(MX21_AUDMUX_BASE_ADDR, SZ_4K), +}; + +void __init imx21_soc_init(void) +{ + mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR)); + mxc_device_init(); + + mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + mxc_register_gpio("imx21-gpio", 1, MX21_GPIO2_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + mxc_register_gpio("imx21-gpio", 2, MX21_GPIO3_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + mxc_register_gpio("imx21-gpio", 3, MX21_GPIO4_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); + + pinctrl_provide_dummies(); + imx_add_imx_dma("imx21-dma", MX21_DMA_BASE_ADDR, + MX21_INT_DMACH0, 0); /* No ERR irq */ + platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res, + ARRAY_SIZE(imx21_audmux_res)); +} |