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>

7 files changed, 95 insertions, 0 deletions

diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 4cd0231ee539..405c28d24e15 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -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
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index 79b94523954a..c0f21cef4b5d 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -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])
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index acf9eea124c0..b55437124fda 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -23,3 +23,6 @@ config MXS_HAVE_PLATFORM_MXS_PWM
 
 config MXS_HAVE_PLATFORM_MXSFB
         bool
+
+config MXS_HAVE_PLATFORM_MXS_SAIF
+        bool
diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
index 351915c683ff..d3e8cc388629 100644
--- a/arch/arm/mach-mxs/devices/Makefile
+++ b/arch/arm/mach-mxs/devices/Makefile
@@ -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
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-saif.c b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
new file mode 100644
index 000000000000..1ec965e9fe92
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
@@ -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);
+}
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index 812d7a813a78..a8080f44c03d 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -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);
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index eaaf6ff28990..1e5fda94d96c 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -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");