diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx31pdk.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx31pdk.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx31pdk.c b/arch/arm/mach-mx3/mx31pdk.c new file mode 100644 index 000000000000..d464d068a4a6 --- /dev/null +++ b/arch/arm/mach-mx3/mx31pdk.c @@ -0,0 +1,115 @@ +/* + * Copyright 2008 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/irq.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/memory.h> +#include <asm/mach/map.h> +#include <mach/common.h> +#include <mach/board-mx31pdk.h> +#include <mach/imx-uart.h> +#include <mach/iomux-mx3.h> +#include "devices.h" + +/*! + * @file mx31pdk.c + * + * @brief This file contains the board-specific initialization routines. + * + * @ingroup System + */ + +static struct imxuart_platform_data uart_pdata = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static inline void mxc_init_imx_uart(void) +{ + mxc_iomux_mode(MX31_PIN_CTS1__CTS1); + mxc_iomux_mode(MX31_PIN_RTS1__RTS1); + mxc_iomux_mode(MX31_PIN_TXD1__TXD1); + mxc_iomux_mode(MX31_PIN_RXD1__RXD1); + + mxc_register_device(&mxc_uart_device0, &uart_pdata); +} + +/*! + * This structure defines static mappings for the i.MX31PDK board. + */ +static struct map_desc mx31pdk_io_desc[] __initdata = { + { + .virtual = AIPS1_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(AIPS1_BASE_ADDR), + .length = AIPS1_SIZE, + .type = MT_DEVICE_NONSHARED + }, { + .virtual = AIPS2_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(AIPS2_BASE_ADDR), + .length = AIPS2_SIZE, + .type = MT_DEVICE_NONSHARED + }, +}; + +/*! + * Set up static virtual mappings. + */ +static void __init mx31pdk_map_io(void) +{ + mxc_map_io(); + iotable_init(mx31pdk_io_desc, ARRAY_SIZE(mx31pdk_io_desc)); +} + +/*! + * Board specific initialization. + */ +static void __init mxc_board_init(void) +{ + mxc_init_imx_uart(); +} + +static void __init mx31pdk_timer_init(void) +{ + mxc_clocks_init(26000000); + mxc_timer_init("ipg_clk.0"); +} + +static struct sys_timer mx31pdk_timer = { + .init = mx31pdk_timer_init, +}; + +/* + * The following uses standard kernel macros defined in arch.h in order to + * initialize __mach_desc_MX31PDK data structure. + */ +MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)") + /* Maintainer: Freescale Semiconductor, Inc. */ + .phys_io = AIPS1_BASE_ADDR, + .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc, + .boot_params = PHYS_OFFSET + 0x100, + .map_io = mx31pdk_map_io, + .init_irq = mxc_init_irq, + .init_machine = mxc_board_init, + .timer = &mx31pdk_timer, +MACHINE_END |