c981214ac4
Add I2C support for MX27ADS board Signed-off-by: Vladimir Barinov <vbarinov@embeddedalley.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
213 lines
5.2 KiB
C
213 lines
5.2 KiB
C
/*
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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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/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/i2c.h>
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#include <mach/common.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/gpio.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux.h>
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#include <mach/board-mx27ads.h>
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#include <mach/mxc_nand.h>
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#include <mach/i2c.h>
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#include "devices.h"
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static unsigned int mx27ads_pins[] = {
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/* UART0 */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* UART1 */
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PE3_PF_UART2_CTS,
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PE4_PF_UART2_RTS,
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PE6_PF_UART2_TXD,
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PE7_PF_UART2_RXD,
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/* UART2 */
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PE8_PF_UART3_TXD,
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PE9_PF_UART3_RXD,
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PE10_PF_UART3_CTS,
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PE11_PF_UART3_RTS,
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/* UART3 */
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PB26_AF_UART4_RTS,
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PB28_AF_UART4_TXD,
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PB29_AF_UART4_CTS,
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PB31_AF_UART4_RXD,
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/* UART4 */
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PB18_AF_UART5_TXD,
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PB19_AF_UART5_RXD,
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PB20_AF_UART5_CTS,
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PB21_AF_UART5_RTS,
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/* UART5 */
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PB10_AF_UART6_TXD,
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PB12_AF_UART6_CTS,
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PB11_AF_UART6_RXD,
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PB13_AF_UART6_RTS,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* I2C2 */
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PC5_PF_I2C2_SDA,
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PC6_PF_I2C2_SCL,
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};
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static struct mxc_nand_platform_data mx27ads_nand_board_info = {
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.width = 1,
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.hw_ecc = 1,
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};
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/* ADS's NOR flash */
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static struct physmap_flash_data mx27ads_flash_data = {
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.width = 2,
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};
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static struct resource mx27ads_flash_resource = {
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.start = 0xc0000000,
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.end = 0xc0000000 + 0x02000000 - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device mx27ads_nor_mtd_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &mx27ads_flash_data,
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},
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.num_resources = 1,
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.resource = &mx27ads_flash_resource,
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};
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static struct imxi2c_platform_data mx27ads_i2c_data = {
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.bitrate = 100000,
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};
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static struct i2c_board_info mx27ads_i2c_devices[] = {
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};
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static struct platform_device *platform_devices[] __initdata = {
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&mx27ads_nor_mtd_device,
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&mxc_fec_device,
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};
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static struct imxuart_platform_data uart_pdata[] = {
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{
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.flags = IMXUART_HAVE_RTSCTS,
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},
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};
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static void __init mx27ads_board_init(void)
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{
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mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
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"mx27ads");
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mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
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mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
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mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
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mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
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mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
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mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
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mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);
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/* only the i2c master 1 is used on this CPU card */
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i2c_register_board_info(1, mx27ads_i2c_devices,
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ARRAY_SIZE(mx27ads_i2c_devices));
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mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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static void __init mx27ads_timer_init(void)
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{
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unsigned long fref = 26000000;
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if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
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fref = 27000000;
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mx27_clocks_init(fref);
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}
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static struct sys_timer mx27ads_timer = {
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.init = mx27ads_timer_init,
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};
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static struct map_desc mx27ads_io_desc[] __initdata = {
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{
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.virtual = PBC_BASE_ADDRESS,
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.pfn = __phys_to_pfn(CS4_BASE_ADDR),
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.length = SZ_1M,
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.type = MT_DEVICE,
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},
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};
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static void __init mx27ads_map_io(void)
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{
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mx27_map_io();
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iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
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}
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MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
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/* maintainer: Freescale Semiconductor, Inc. */
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.phys_io = AIPI_BASE_ADDR,
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.io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx27ads_map_io,
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.init_irq = mxc_init_irq,
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.init_machine = mx27ads_board_init,
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.timer = &mx27ads_timer,
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MACHINE_END
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