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ARM: mxs: add saif device
Signed-off-by: Dong Aisheng <b29396@freescale.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
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arch/arm/mach-mxs
@ -48,6 +48,7 @@ config MACH_MX28EVK
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select MXS_HAVE_PLATFORM_FLEXCAN
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select MXS_HAVE_PLATFORM_MXS_MMC
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select MXS_HAVE_PLATFORM_MXSFB
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select MXS_HAVE_PLATFORM_MXS_SAIF
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select MXS_OCOTP
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help
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Include support for MX28EVK platform. This includes specific
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@ -45,3 +45,6 @@ extern const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst;
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struct platform_device *__init mx28_add_mxsfb(
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const struct mxsfb_platform_data *pdata);
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extern const struct mxs_saif_data mx28_saif_data[] __initconst;
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#define mx28_add_saif(id) mxs_add_saif(&mx28_saif_data[id])
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@ -23,3 +23,6 @@ config MXS_HAVE_PLATFORM_MXS_PWM
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config MXS_HAVE_PLATFORM_MXSFB
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bool
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config MXS_HAVE_PLATFORM_MXS_SAIF
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bool
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@ -8,3 +8,4 @@ obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_MMC) += platform-mxs-mmc.o
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obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
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obj-y += platform-gpio-mxs.o
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obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.o
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obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_SAIF) += platform-mxs-saif.o
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60
arch/arm/mach-mxs/devices/platform-mxs-saif.c
Normal file
60
arch/arm/mach-mxs/devices/platform-mxs-saif.c
Normal file
@ -0,0 +1,60 @@
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/*
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* Copyright 2011 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 it under
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* the terms of the GNU General Public License version 2 as published by the
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* Free Software Foundation.
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*/
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#include <linux/compiler.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <mach/mx23.h>
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#include <mach/mx28.h>
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#include <mach/devices-common.h>
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#define mxs_saif_data_entry_single(soc, _id) \
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{ \
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.id = _id, \
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.iobase = soc ## _SAIF ## _id ## _BASE_ADDR, \
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.irq = soc ## _INT_SAIF ## _id, \
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.dma = soc ## _DMA_SAIF ## _id, \
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.dmairq = soc ## _INT_SAIF ## _id ##_DMA, \
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}
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#define mxs_saif_data_entry(soc, _id) \
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[_id] = mxs_saif_data_entry_single(soc, _id)
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#ifdef CONFIG_SOC_IMX28
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const struct mxs_saif_data mx28_saif_data[] __initconst = {
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mxs_saif_data_entry(MX28, 0),
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mxs_saif_data_entry(MX28, 1),
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};
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#endif
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struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
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{
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struct resource res[] = {
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{
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.start = data->iobase,
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.end = data->iobase + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = data->irq,
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.end = data->irq,
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.flags = IORESOURCE_IRQ,
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}, {
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.start = data->dma,
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.end = data->dma,
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.flags = IORESOURCE_DMA,
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}, {
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.start = data->dmairq,
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.end = data->dmairq,
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.flags = IORESOURCE_IRQ,
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},
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};
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return mxs_add_platform_device("mxs-saif", data->id, res,
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ARRAY_SIZE(res), NULL, 0);
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}
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@ -92,3 +92,15 @@ struct platform_device *__init mxs_add_mxs_mmc(
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/* pwm */
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struct platform_device *__init mxs_add_mxs_pwm(
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resource_size_t iobase, int id);
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/* saif */
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struct mxs_saif_data {
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int id;
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resource_size_t iobase;
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resource_size_t irq;
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resource_size_t dma;
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resource_size_t dmairq;
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};
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struct platform_device *__init mxs_add_saif(
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const struct mxs_saif_data *data);
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@ -183,6 +183,18 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
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/* led */
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MX28_PAD_AUART1_TX__GPIO_3_5 | MXS_PAD_CTRL,
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/* saif0 & saif1 */
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MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |
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(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |
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(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |
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(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |
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(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |
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(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
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};
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/* led */
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@ -392,6 +404,9 @@ static void __init mx28evk_init(void)
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mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
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mx28_add_saif(0);
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mx28_add_saif(1);
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/* power on mmc slot by writing 0 to the gpio */
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ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
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"mmc0-slot-power");
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