e00f0b4a93
This enables our mx31moboard to be used on the different baseboards that we are developping according to the application needs. There are not many differences between the boards for now, but when other peripherals are available for mx31 the differences are going to grow. v2: takes Sascha's comments into account Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/*
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* Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mtd/partitions.h>
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#include <linux/memory.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx3.h>
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#include <mach/board-mx31moboard.h>
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#include "devices.h"
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static struct physmap_flash_data mx31moboard_flash_data = {
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.width = 2,
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};
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static struct resource mx31moboard_flash_resource = {
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.start = 0xa0000000,
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.end = 0xa1ffffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device mx31moboard_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &mx31moboard_flash_data,
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},
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.resource = &mx31moboard_flash_resource,
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.num_resources = 1,
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};
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct platform_device *devices[] __initdata = {
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&mx31moboard_flash,
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};
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static int mxc_uart0_pins[] = {
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MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
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MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
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};
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static int mxc_uart4_pins[] = {
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MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
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MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
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};
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static int mx31moboard_baseboard;
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core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
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/*
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* Board specific initialization.
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*/
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static void __init mxc_board_init(void)
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{
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platform_add_devices(devices, ARRAY_SIZE(devices));
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mxc_iomux_setup_multiple_pins(mxc_uart0_pins, ARRAY_SIZE(mxc_uart0_pins), "uart0");
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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mxc_iomux_setup_multiple_pins(mxc_uart4_pins, ARRAY_SIZE(mxc_uart4_pins), "uart4");
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mxc_register_device(&mxc_uart_device4, &uart_pdata);
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switch (mx31moboard_baseboard) {
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case MX31NOBOARD:
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break;
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case MX31DEVBOARD:
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mx31moboard_devboard_init();
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break;
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case MX31MARXBOT:
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mx31moboard_marxbot_init();
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break;
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default:
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printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n", mx31moboard_baseboard);
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}
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}
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/*
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* This structure defines static mappings for the mx31moboard.
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*/
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static struct map_desc mx31moboard_io_desc[] __initdata = {
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{
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.virtual = AIPS1_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
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.length = AIPS1_SIZE,
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.type = MT_DEVICE_NONSHARED
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}, {
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.virtual = AIPS2_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
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.length = AIPS2_SIZE,
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.type = MT_DEVICE_NONSHARED
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},
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};
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/*
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* Set up static virtual mappings.
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*/
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void __init mx31moboard_map_io(void)
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{
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mxc_map_io();
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iotable_init(mx31moboard_io_desc, ARRAY_SIZE(mx31moboard_io_desc));
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}
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static void __init mx31moboard_timer_init(void)
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{
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mx31_clocks_init(26000000);
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}
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struct sys_timer mx31moboard_timer = {
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.init = mx31moboard_timer_init,
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};
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MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
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/* Maintainer: Valentin Longchamp, EPFL Mobots group */
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.phys_io = AIPS1_BASE_ADDR,
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.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx31moboard_map_io,
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.init_irq = mxc_init_irq,
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.init_machine = mxc_board_init,
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.timer = &mx31moboard_timer,
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MACHINE_END
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