ARM: imx: dynamically allocate imx-ssi devices

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

7 files changed, 144 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index 9ab784b..d736c3d 100644
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -5,6 +5,9 @@ config IMX_HAVE_PLATFORM_FLEXCAN
 config IMX_HAVE_PLATFORM_IMX_I2C
 	bool
 
+config IMX_HAVE_PLATFORM_IMX_SSI
+	bool
+
 config IMX_HAVE_PLATFORM_IMX_UART
 	bool
 
diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index 2062ab4..ac77383 100644
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_IMX_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_I2C) += platform-imx-i2c.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_SSI) += platform-imx-ssi.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_UART) += platform-imx-uart.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_NAND) += platform-mxc_nand.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_SPI_IMX) +=  platform-spi_imx.o
diff --git a/arch/arm/plat-mxc/devices/platform-imx-ssi.c b/arch/arm/plat-mxc/devices/platform-imx-ssi.c
new file mode 100644
index 0000000..1535bc9
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-imx-ssi.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * 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 <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#define imx_imx_ssi_data_entry(soc, _id, _hwid, _size)			\
+	[_id] = {							\
+		.id = _id,						\
+		.iobase = soc ## _SSI ## _hwid ## _BASE_ADDR,		\
+		.iosize = _size,					\
+		.irq = soc ## _INT_SSI ## _hwid,			\
+		.dmatx0 = soc ## _DMA_REQ_SSI ## _hwid ## _TX0,		\
+		.dmarx0 = soc ## _DMA_REQ_SSI ## _hwid ## _RX0,		\
+		.dmatx1 = soc ## _DMA_REQ_SSI ## _hwid ## _TX1,		\
+		.dmarx1 = soc ## _DMA_REQ_SSI ## _hwid ## _RX1,		\
+	}
+
+#ifdef CONFIG_SOC_IMX21
+const struct imx_imx_ssi_data imx21_imx_ssi_data[] __initconst = {
+#define imx21_imx_ssi_data_entry(_id, _hwid)				\
+	imx_imx_ssi_data_entry(MX21, _id, _hwid, SZ_4K)
+	imx21_imx_ssi_data_entry(0, 1),
+	imx21_imx_ssi_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX21 */
+
+#ifdef CONFIG_ARCH_MX25
+const struct imx_imx_ssi_data imx25_imx_ssi_data[] __initconst = {
+#define imx25_imx_ssi_data_entry(_id, _hwid)				\
+	imx_imx_ssi_data_entry(MX25, _id, _hwid, SZ_4K)
+	imx25_imx_ssi_data_entry(0, 1),
+	imx25_imx_ssi_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_ARCH_MX25 */
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_imx_ssi_data imx27_imx_ssi_data[] __initconst = {
+#define imx27_imx_ssi_data_entry(_id, _hwid)				\
+	imx_imx_ssi_data_entry(MX27, _id, _hwid, SZ_4K)
+	imx27_imx_ssi_data_entry(0, 1),
+	imx27_imx_ssi_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX27 */
+
+#ifdef CONFIG_ARCH_MX31
+const struct imx_imx_ssi_data imx31_imx_ssi_data[] __initconst = {
+#define imx31_imx_ssi_data_entry(_id, _hwid)				\
+	imx_imx_ssi_data_entry(MX31, _id, _hwid, SZ_4K)
+	imx31_imx_ssi_data_entry(0, 1),
+	imx31_imx_ssi_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_ARCH_MX31 */
+
+#ifdef CONFIG_ARCH_MX35
+const struct imx_imx_ssi_data imx35_imx_ssi_data[] __initconst = {
+#define imx35_imx_ssi_data_entry(_id, _hwid)				\
+	imx_imx_ssi_data_entry(MX35, _id, _hwid, SZ_4K)
+	imx35_imx_ssi_data_entry(0, 1),
+	imx35_imx_ssi_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_ARCH_MX35 */
+
+struct platform_device *__init imx_add_imx_ssi(
+		const struct imx_imx_ssi_data *data,
+		const struct imx_ssi_platform_data *pdata)
+{
+	struct resource res[] = {
+		{
+			.start = data->iobase,
+			.end = data->iobase + data->iosize - 1,
+			.flags = IORESOURCE_MEM,
+		}, {
+			.start = data->irq,
+			.end = data->irq,
+			.flags = IORESOURCE_IRQ,
+		},
+#define DMARES(_name) {							\
+	.name = #_name,							\
+	.start = data->dma ## _name,					\
+	.end = data->dma ## _name,					\
+	.flags = IORESOURCE_DMA,					\
+}
+		DMARES(tx0),
+		DMARES(rx0),
+		DMARES(tx1),
+		DMARES(rx1),
+	};
+
+	return imx_add_platform_device("imx-ssi", data->id,
+			res, ARRAY_SIZE(res),
+			pdata, sizeof(*pdata));
+}
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 12bdc7d..84bfe44 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -25,6 +25,21 @@ struct platform_device *__init imx_add_imx_i2c(int id,
 		resource_size_t iobase, resource_size_t iosize, int irq,
 		const struct imxi2c_platform_data *pdata);
 
+#include <mach/ssi.h>
+struct imx_imx_ssi_data {
+	int id;
+	resource_size_t iobase;
+	resource_size_t iosize;
+	resource_size_t irq;
+	resource_size_t dmatx0;
+	resource_size_t dmarx0;
+	resource_size_t dmatx1;
+	resource_size_t dmarx1;
+};
+struct platform_device *__init imx_add_imx_ssi(
+		const struct imx_imx_ssi_data *data,
+		const struct imx_ssi_platform_data *pdata);
+
 #include <mach/imx-uart.h>
 struct imx_imx_uart_3irq_data {
 	int id;
diff --git a/arch/arm/plat-mxc/include/mach/mx25.h b/arch/arm/plat-mxc/include/mach/mx25.h
index 4a6f800..8f809eb 100644
--- a/arch/arm/plat-mxc/include/mach/mx25.h
+++ b/arch/arm/plat-mxc/include/mach/mx25.h
@@ -77,4 +77,13 @@
 #define MX25_INT_UART1		45
 #define MX25_INT_FEC		57
 
+#define MX25_DMA_REQ_SSI2_RX1	22
+#define MX25_DMA_REQ_SSI2_TX1	23
+#define MX25_DMA_REQ_SSI2_RX0	24
+#define MX25_DMA_REQ_SSI2_TX0	25
+#define MX25_DMA_REQ_SSI1_RX1	26
+#define MX25_DMA_REQ_SSI1_TX1	27
+#define MX25_DMA_REQ_SSI1_RX0	28
+#define MX25_DMA_REQ_SSI1_TX0	29
+
 #endif /* ifndef __MACH_MX25_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx31.h b/arch/arm/plat-mxc/include/mach/mx31.h
index afee3ab..eb8bbc7 100644
--- a/arch/arm/plat-mxc/include/mach/mx31.h
+++ b/arch/arm/plat-mxc/include/mach/mx31.h
@@ -197,6 +197,15 @@ static inline void mx31_setup_weimcs(size_t cs,
 #define MX31_INT_EXT_WDOG	62
 #define MX31_INT_EXT_TV		63
 
+#define MX31_DMA_REQ_SSI2_RX1	22
+#define MX31_DMA_REQ_SSI2_TX1	23
+#define MX31_DMA_REQ_SSI2_RX0	24
+#define MX31_DMA_REQ_SSI2_TX0	25
+#define MX31_DMA_REQ_SSI1_RX1	26
+#define MX31_DMA_REQ_SSI1_TX1	27
+#define MX31_DMA_REQ_SSI1_RX0	28
+#define MX31_DMA_REQ_SSI1_TX0	29
+
 #define MX31_PROD_SIGNATURE		0x1	/* For MX31 */
 
 /* silicon revisions specific to i.MX31 */
diff --git a/arch/arm/plat-mxc/include/mach/mx35.h b/arch/arm/plat-mxc/include/mach/mx35.h
index af3038c..867b8c0c 100644
--- a/arch/arm/plat-mxc/include/mach/mx35.h
+++ b/arch/arm/plat-mxc/include/mach/mx35.h
@@ -173,6 +173,15 @@
 #define MX35_INT_EXT_WDOG	62
 #define MX35_INT_EXT_TV		63
 
+#define MX35_DMA_REQ_SSI2_RX1   22
+#define MX35_DMA_REQ_SSI2_TX1   23
+#define MX35_DMA_REQ_SSI2_RX0   24
+#define MX35_DMA_REQ_SSI2_TX0   25
+#define MX35_DMA_REQ_SSI1_RX1   26
+#define MX35_DMA_REQ_SSI1_TX1   27
+#define MX35_DMA_REQ_SSI1_RX0   28
+#define MX35_DMA_REQ_SSI1_TX0   29
+
 #define MX35_PROD_SIGNATURE		0x1	/* For MX31 */
 
 /* silicon revisions specific to i.MX31 */