diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 8456292..4a09ce9 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -653,6 +653,13 @@
 };
 #endif
 
+#if defined(CONFIG_AD2S90) || defined(CONFIG_AD2S90_MODULE)
+static struct bfin5xx_spi_chip ad2s90_spi_chip_info = {
+	.enable_dma = 0,
+	.bits_per_word = 16,
+};
+#endif
+
 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 
@@ -967,6 +974,16 @@
 	},
 #endif
 
+#if defined(CONFIG_AD2S90) || defined(CONFIG_AD2S90_MODULE)
+	{
+		.modalias = "ad2s90",
+		.bus_num = 0,
+		.chip_select = 3,            /* change it for your board */
+		.platform_data = NULL,
+		.controller_data = &ad2s90_spi_chip_info,
+	},
+#endif
+
 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 	{
 		.modalias = "mmc_spi",