mirror of https://gitee.com/openkylin/linux.git
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*
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* board setup for STMP378x-Development-Board
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*
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* based on mx23evk board setup and information gained form the original
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* plat-stmp based board setup, now converted to mach-mxs.
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*
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* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright (C) 2011 Wolfram Sang, Pengutronix e.K.
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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; version 2 of the License.
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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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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/spi/spi.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 <mach/common.h>
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#include <mach/iomux-mx23.h>
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#include "devices-mx23.h"
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#define STMP378X_DEVB_MMC0_WRITE_PROTECT MXS_GPIO_NR(1, 30)
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#define STMP378X_DEVB_MMC0_SLOT_POWER MXS_GPIO_NR(1, 29)
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#define STMP378X_DEVB_PAD_AUART (MXS_PAD_4MA | MXS_PAD_1V8 | MXS_PAD_NOPULL)
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static const iomux_cfg_t stmp378x_dvb_pads[] __initconst = {
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/* duart (extended setup missing in old boardcode, too */
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MX23_PAD_PWM0__DUART_RX,
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MX23_PAD_PWM1__DUART_TX,
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/* auart */
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MX23_PAD_AUART1_RX__AUART1_RX | STMP378X_DEVB_PAD_AUART,
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MX23_PAD_AUART1_TX__AUART1_TX | STMP378X_DEVB_PAD_AUART,
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MX23_PAD_AUART1_CTS__AUART1_CTS | STMP378X_DEVB_PAD_AUART,
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MX23_PAD_AUART1_RTS__AUART1_RTS | STMP378X_DEVB_PAD_AUART,
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/* mmc */
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MX23_PAD_SSP1_DATA0__SSP1_DATA0 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA1__SSP1_DATA1 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA2__SSP1_DATA2 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DATA3__SSP1_DATA3 |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_CMD__SSP1_CMD |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX23_PAD_SSP1_DETECT__SSP1_DETECT |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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MX23_PAD_SSP1_SCK__SSP1_SCK |
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(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
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MX23_PAD_PWM4__GPIO_1_30 | MXS_PAD_CTRL, /* write protect */
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MX23_PAD_PWM3__GPIO_1_29 | MXS_PAD_CTRL, /* power enable */
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};
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static struct mxs_mmc_platform_data stmp378x_dvb_mmc_pdata __initdata = {
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.wp_gpio = STMP378X_DEVB_MMC0_WRITE_PROTECT,
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};
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static struct spi_board_info spi_board_info[] __initdata = {
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#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
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{
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.modalias = "enc28j60",
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.max_speed_hz = 6 * 1000 * 1000,
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.bus_num = 1,
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.chip_select = 0,
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.platform_data = NULL,
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},
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#endif
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};
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static void __init stmp378x_dvb_init(void)
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{
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int ret;
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mxs_iomux_setup_multiple_pads(stmp378x_dvb_pads,
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ARRAY_SIZE(stmp378x_dvb_pads));
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mx23_add_duart();
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mx23_add_auart0();
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mx23_add_rtc_stmp3xxx();
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/* power on mmc slot */
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ret = gpio_request_one(STMP378X_DEVB_MMC0_SLOT_POWER,
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GPIOF_OUT_INIT_LOW, "mmc0-slot-power");
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if (ret)
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pr_warn("could not power mmc (%d)\n", ret);
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mx23_add_mxs_mmc(0, &stmp378x_dvb_mmc_pdata);
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spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
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}
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static void __init stmp378x_dvb_timer_init(void)
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{
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mx23_clocks_init();
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}
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static struct sys_timer stmp378x_dvb_timer = {
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.init = stmp378x_dvb_timer_init,
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};
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MACHINE_START(STMP378X, "STMP378X")
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.map_io = mx23_map_io,
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.init_irq = mx23_init_irq,
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.timer = &stmp378x_dvb_timer,
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.init_machine = stmp378x_dvb_init,
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.restart = mxs_restart,
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MACHINE_END
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