d1654b803f
The mxs pinctrl driver will only support DT probe. That said, the mxs device drivers can only get pinctrl state from pinctrl subsystem when the drivers get probed from device tree. Before converting the whole mxs platform support over to device tree, we need to enable pinctrl dummy states for those non-DT board files to ensure the pinctrl API adopted by mxs device drivers will work for both DT and non-DT probe. Instead of calling pinctrl_provide_dummies() directly in every board file, the patch introduces soc specific calls mx23_soc_init() and mx28_soc_init() for boards' .init_machine hook to invoke, so that any soc specific setup for non-DT boot only can be added there. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
124 lines
3.6 KiB
C
124 lines
3.6 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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mx23_soc_init();
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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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