[Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support

 - Enable kernel generic spidev driver for blackfin SPI ADC
 - spi_adc driver, document and test sample not synced

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

7 files changed, 103 insertions, 38 deletions

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 1795aab79064..b0c17afd4b76 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -517,6 +517,14 @@ static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
         .bits_per_word = 16,
 };
 #endif
+
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
         || defined(CONFIG_MTD_M25P80_MODULE)
@@ -634,6 +642,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI controller data */
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 4026c2f3ab4e..4a42d624e558 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -134,6 +134,13 @@ static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 };
 #endif
 
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
         {
@@ -168,6 +175,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .controller_data = &ad1836_spi_chip_info,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI (0) */
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 41ec72f8a08c..a645f6fd091b 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -226,6 +226,13 @@ static struct bfin5xx_spi_chip spi_mmc_chip_info = {
 };
 #endif
 
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
         {
@@ -312,6 +319,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_2,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI (0) */
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 119e6ea83384..9e2277e0d25c 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -487,6 +487,13 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
         || defined(CONFIG_MTD_M25P80_MODULE)
@@ -593,6 +600,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .controller_data = &spi_ad7877_chip_info,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI controller data */
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 638da39a2f34..d5330d4f79d3 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -420,6 +420,13 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bf54x_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
         || defined(CONFIG_MTD_M25P80_MODULE)
@@ -445,6 +452,15 @@ static struct spi_board_info bf54x_spi_board_info[] __initdata = {
         .controller_data = &spi_ad7877_chip_info,
 },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI (0) */
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 63259d0828af..43c1b0982819 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -266,6 +266,13 @@ static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
         .bits_per_word = 16,
 };
 #endif
+
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
 #endif
 
 /* SPI (0) */
@@ -310,6 +317,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .controller_data = &ad1836_spi_chip_info,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
diff --git a/include/asm-blackfin/bfin5xx_spi.h b/include/asm-blackfin/bfin5xx_spi.h
index 1a0b57f6a3d4..9fa19158e38d 100644
--- a/include/asm-blackfin/bfin5xx_spi.h
+++ b/include/asm-blackfin/bfin5xx_spi.h
@@ -1,6 +1,6 @@
 /************************************************************
-*
-* Copyright (C) 2004, Analog Devices. All Rights Reserved
+
+* Copyright (C) 2006-2008, Analog Devices. All Rights Reserved
 *
 * FILE bfin5xx_spi.h
 * PROGRAMMER(S): Luke Yang (Analog Devices Inc.)
@@ -32,42 +32,6 @@
 #define SPI_BAUD_OFF            0x14
 #define SPI_SHAW_OFF            0x18
 
-#define CMD_SPI_OUT_ENABLE    1
-#define CMD_SPI_SET_BAUDRATE  2
-#define CMD_SPI_SET_POLAR     3
-#define CMD_SPI_SET_PHASE     4
-#define CMD_SPI_SET_MASTER    5
-#define CMD_SPI_SET_SENDOPT   6
-#define CMD_SPI_SET_RECVOPT   7
-#define CMD_SPI_SET_ORDER     8
-#define CMD_SPI_SET_LENGTH16  9
-#define CMD_SPI_GET_STAT      11
-#define CMD_SPI_GET_CFG       12
-#define CMD_SPI_SET_CSAVAIL   13
-#define CMD_SPI_SET_CSHIGH    14        /* CS unavail */
-#define CMD_SPI_SET_CSLOW     15        /* CS avail */
-#define CMD_SPI_MISO_ENABLE   16
-#define CMD_SPI_SET_CSENABLE  17
-#define CMD_SPI_SET_CSDISABLE 18
-
-#define CMD_SPI_SET_TRIGGER_MODE  19
-#define CMD_SPI_SET_TRIGGER_SENSE 20
-#define CMD_SPI_SET_TRIGGER_EDGE  21
-#define CMD_SPI_SET_TRIGGER_LEVEL 22
-
-#define CMD_SPI_SET_TIME_SPS      23
-#define CMD_SPI_SET_TIME_SAMPLES  24
-#define CMD_SPI_GET_SYSTEMCLOCK   25
-
-#define CMD_SPI_SET_WRITECONTINUOUS     26
-#define CMD_SPI_SET_SKFS                27
-
-#define CMD_SPI_GET_ALLCONFIG 32        /* For debug */
-
-#define SPI_DEFAULT_BARD    0x0100
-
-#define SPI0_IRQ_NUM        IRQ_SPI
-#define SPI_ERR_TRIG       -1
 
 #define BIT_CTL_ENABLE      0x4000
 #define BIT_CTL_OPENDRAIN   0x2000
@@ -148,6 +112,10 @@
 #define CFG_SPI_CS6VALUE    6
 #define CFG_SPI_CS7VALUE    7
 
+#define CMD_SPI_SET_BAUDRATE  2
+#define CMD_SPI_GET_SYSTEMCLOCK   25
+#define CMD_SPI_SET_WRITECONTINUOUS     26
+
 /* device.platform_data for SSP controller devices */
 struct bfin5xx_spi_master {
         u16 num_chipselect;