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-rw-r--r--arch/blackfin/mach-bf537/boards/stamp.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 9bc7bd3..7a1d645 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -825,6 +825,29 @@ static inline void adf702x_mac_init(void)
static inline void adf702x_mac_init(void) {}
#endif
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+#include <linux/spi/ads7846.h>
+static struct bfin5xx_spi_chip ad7873_spi_chip_info = {
+ .bits_per_word = 8,
+};
+
+static int ads7873_get_pendown_state(void)
+{
+ return gpio_get_value(GPIO_PF6);
+}
+
+static struct ads7846_platform_data __initdata ad7873_pdata = {
+ .model = 7873, /* AD7873 */
+ .x_max = 0xfff,
+ .y_max = 0xfff,
+ .x_plate_ohms = 620,
+ .debounce_max = 1,
+ .debounce_rep = 0,
+ .debounce_tol = (~0),
+ .get_pendown_state = ads7873_get_pendown_state,
+};
+#endif
+
#if defined(CONFIG_MTD_DATAFLASH) \
|| defined(CONFIG_MTD_DATAFLASH_MODULE)
@@ -1026,7 +1049,18 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.mode = SPI_MODE_0,
},
#endif
-
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+ {
+ .modalias = "ads7846",
+ .max_speed_hz = 2000000, /* max spi clock (SCK) speed in HZ */
+ .bus_num = 0,
+ .irq = IRQ_PF6,
+ .chip_select = GPIO_PF10 + MAX_CTRL_CS, /* GPIO controlled SSEL */
+ .controller_data = &ad7873_spi_chip_info,
+ .platform_data = &ad7873_pdata,
+ .mode = SPI_MODE_0,
+ },
+#endif
};
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)