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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>
This commit is contained in:
Dong Aisheng 2011-07-20 11:41:42 +08:00 committed by Sascha Hauer
parent cf66ea8e14
commit c8ebcac823
7 changed files with 95 additions and 0 deletions
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1
arch/arm/mach-mxs/Kconfig
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@ -48,6 +48,7 @@ config MACH_MX28EVK
select MXS_HAVE_PLATFORM_FLEXCAN
select MXS_HAVE_PLATFORM_MXS_MMC
select MXS_HAVE_PLATFORM_MXSFB
select MXS_HAVE_PLATFORM_MXS_SAIF
select MXS_OCOTP
help
Include support for MX28EVK platform. This includes specific

3
arch/arm/mach-mxs/devices-mx28.h
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@ -45,3 +45,6 @@ extern const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst;
struct platform_device *__init mx28_add_mxsfb(
const struct mxsfb_platform_data *pdata);
extern const struct mxs_saif_data mx28_saif_data[] __initconst;
#define mx28_add_saif(id) mxs_add_saif(&mx28_saif_data[id])

3
arch/arm/mach-mxs/devices/Kconfig
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@ -23,3 +23,6 @@ config MXS_HAVE_PLATFORM_MXS_PWM
config MXS_HAVE_PLATFORM_MXSFB
bool
config MXS_HAVE_PLATFORM_MXS_SAIF
bool

1
arch/arm/mach-mxs/devices/Makefile
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@ -8,3 +8,4 @@ obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_MMC) += platform-mxs-mmc.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
obj-y += platform-gpio-mxs.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_SAIF) += platform-mxs-saif.o

60
arch/arm/mach-mxs/devices/platform-mxs-saif.c Normal file
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@ -0,0 +1,60 @@
/*
* Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
*/
#include <linux/compiler.h>
#include <linux/err.h>
#include <linux/init.h>
#include <mach/mx23.h>
#include <mach/mx28.h>
#include <mach/devices-common.h>
#define mxs_saif_data_entry_single(soc, _id) \
{ \
.id = _id, \
.iobase = soc ## _SAIF ## _id ## _BASE_ADDR, \
.irq = soc ## _INT_SAIF ## _id, \
.dma = soc ## _DMA_SAIF ## _id, \
.dmairq = soc ## _INT_SAIF ## _id ##_DMA, \
}
#define mxs_saif_data_entry(soc, _id) \
[_id] = mxs_saif_data_entry_single(soc, _id)
#ifdef CONFIG_SOC_IMX28
const struct mxs_saif_data mx28_saif_data[] __initconst = {
mxs_saif_data_entry(MX28, 0),
mxs_saif_data_entry(MX28, 1),
};
#endif
struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
{
struct resource res[] = {
{
.start = data->iobase,
.end = data->iobase + SZ_4K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = data->irq,
.end = data->irq,
.flags = IORESOURCE_IRQ,
}, {
.start = data->dma,
.end = data->dma,
.flags = IORESOURCE_DMA,
}, {
.start = data->dmairq,
.end = data->dmairq,
.flags = IORESOURCE_IRQ,
},
};
return mxs_add_platform_device("mxs-saif", data->id, res,
ARRAY_SIZE(res), NULL, 0);
}

12
arch/arm/mach-mxs/include/mach/devices-common.h
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@ -92,3 +92,15 @@ struct platform_device *__init mxs_add_mxs_mmc(
/* pwm */
struct platform_device *__init mxs_add_mxs_pwm(
resource_size_t iobase, int id);
/* saif */
struct mxs_saif_data {
int id;
resource_size_t iobase;
resource_size_t irq;
resource_size_t dma;
resource_size_t dmairq;
};
struct platform_device *__init mxs_add_saif(
const struct mxs_saif_data *data);

15
arch/arm/mach-mxs/mach-mx28evk.c
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@ -183,6 +183,18 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
/* led */
MX28_PAD_AUART1_TX__GPIO_3_5 | MXS_PAD_CTRL,
/* saif0 & saif1 */
MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |
(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
};
/* led */
@ -392,6 +404,9 @@ static void __init mx28evk_init(void)
mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
mx28_add_saif(0);
mx28_add_saif(1);
/* power on mmc slot by writing 0 to the gpio */
ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
"mmc0-slot-power");