diff --git a/drivers/staging/wilc1000/linux_wlan_spi.c b/drivers/staging/wilc1000/linux_wlan_spi.c
index 1d8922d6eb6ad715ce1840b6f1b74620f0f58479..5e3bff05a95fdb41cd1fb4b174bef064ac902964 100644
--- a/drivers/staging/wilc1000/linux_wlan_spi.c
+++ b/drivers/staging/wilc1000/linux_wlan_spi.c
@@ -17,33 +17,6 @@
 
 #define USE_SPI_DMA     0       /* johnny add */
 
-#ifdef WILC_ASIC_A0
- #if defined(PLAT_PANDA_ES_OMAP4460)
-  #define MIN_SPEED 12000000
-  #define MAX_SPEED 24000000
- #elif defined(PLAT_WMS8304)
-  #define MIN_SPEED 12000000
-  #define MAX_SPEED 24000000 /* 4000000 */
- #elif defined(CUSTOMER_PLATFORM)
-/*
-  TODO : define Clock speed under 48M.
- *
- * ex)
- * #define MIN_SPEED 24000000
- * #define MAX_SPEED 48000000
- */
- #else
-  #define MIN_SPEED 24000000
-  #define MAX_SPEED 48000000
- #endif
-#else /* WILC_ASIC_A0 */
-/* Limit clk to 6MHz on FPGA. */
- #define MIN_SPEED 6000000
- #define MAX_SPEED 6000000
-#endif /* WILC_ASIC_A0 */
-
-static u32 SPEED = MIN_SPEED;
-
 static const struct wilc1000_ops wilc1000_spi_ops;
 
 static int wilc_bus_probe(struct spi_device *spi)
@@ -119,7 +92,6 @@ int wilc_spi_write(u8 *b, u32 len)
 				struct spi_transfer tr = {
 					.tx_buf = b + (i * TXRX_PHASE_SIZE),
 					.len = TXRX_PHASE_SIZE,
-					.speed_hz = SPEED,
 					.bits_per_word = 8,
 					.delay_usecs = 0,
 				};
@@ -145,7 +117,6 @@ int wilc_spi_write(u8 *b, u32 len)
 			struct spi_transfer tr = {
 				.tx_buf = b + (blk * TXRX_PHASE_SIZE),
 				.len = remainder,
-				.speed_hz = SPEED,
 				.bits_per_word = 8,
 				.delay_usecs = 0,
 			};
@@ -187,7 +158,6 @@ int wilc_spi_write(u8 *b, u32 len)
 		struct spi_transfer tr = {
 			.tx_buf = b,
 			.len = len,
-			.speed_hz = SPEED,
 			.delay_usecs = 0,
 		};
 		char *r_buffer = kzalloc(len, GFP_KERNEL);
@@ -249,7 +219,6 @@ int wilc_spi_read(u8 *rb, u32 rlen)
 				struct spi_transfer tr = {
 					.rx_buf = rb + (i * TXRX_PHASE_SIZE),
 					.len = TXRX_PHASE_SIZE,
-					.speed_hz = SPEED,
 					.bits_per_word = 8,
 					.delay_usecs = 0,
 				};
@@ -273,7 +242,6 @@ int wilc_spi_read(u8 *rb, u32 rlen)
 			struct spi_transfer tr = {
 				.rx_buf = rb + (blk * TXRX_PHASE_SIZE),
 				.len = remainder,
-				.speed_hz = SPEED,
 				.bits_per_word = 8,
 				.delay_usecs = 0,
 			};
@@ -313,7 +281,6 @@ int wilc_spi_read(u8 *rb, u32 rlen)
 		struct spi_transfer tr = {
 			.rx_buf = rb,
 			.len = rlen,
-			.speed_hz = SPEED,
 			.delay_usecs = 0,
 
 		};
@@ -359,7 +326,6 @@ int wilc_spi_write_read(u8 *wb, u8 *rb, u32 rlen)
 			.rx_buf = rb,
 			.tx_buf = wb,
 			.len = rlen,
-			.speed_hz = SPEED,
 			.bits_per_word = 8,
 			.delay_usecs = 0,
 
@@ -384,11 +350,3 @@ int wilc_spi_write_read(u8 *wb, u8 *rb, u32 rlen)
 
 	return ret;
 }
-
-int wilc_spi_set_max_speed(void)
-{
-	SPEED = MAX_SPEED;
-
-	PRINT_INFO(BUS_DBG, "@@@@@@@@@@@@ change SPI speed to %d @@@@@@@@@\n", SPEED);
-	return 1;
-}
diff --git a/drivers/staging/wilc1000/linux_wlan_spi.h b/drivers/staging/wilc1000/linux_wlan_spi.h
index f434f79913abc2612552b334a01a788178f9c913..baa98cc9a247e603b5bfcbd404f00fe35a6f19ab 100644
--- a/drivers/staging/wilc1000/linux_wlan_spi.h
+++ b/drivers/staging/wilc1000/linux_wlan_spi.h
@@ -7,6 +7,4 @@ int wilc_spi_init(void);
 int wilc_spi_write(u8 *b, u32 len);
 int wilc_spi_read(u8 *rb, u32 rlen);
 int wilc_spi_write_read(u8 *wb, u8 *rb, u32 rlen);
-int wilc_spi_set_max_speed(void);
-
 #endif
diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
index 39dd75665ba7425f010dfe5bfd3d863a6f143668..1c5dcda4b6345c548f45fcd5d112556483f996f3 100644
--- a/drivers/staging/wilc1000/wilc_spi.c
+++ b/drivers/staging/wilc1000/wilc_spi.c
@@ -793,15 +793,6 @@ static int _wilc_spi_init(struct wilc *wilc, wilc_debug_func func)
 	return 1;
 }
 
-static void wilc_spi_max_bus_speed(void)
-{
-	wilc_spi_set_max_speed();
-}
-
-static void wilc_spi_default_bus_speed(void)
-{
-}
-
 static int wilc_spi_read_size(u32 *size)
 {
 	int ret;
@@ -1036,6 +1027,4 @@ const struct wilc_hif_func wilc_hif_spi = {
 	.hif_block_tx_ext = _wilc_spi_write,
 	.hif_block_rx_ext = _wilc_spi_read,
 	.hif_sync_ext = wilc_spi_sync_ext,
-	.hif_set_max_bus_speed = wilc_spi_max_bus_speed,
-	.hif_set_default_bus_speed = wilc_spi_default_bus_speed,
 };
diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index 20bca44bc8ba59bd067e079bd3f2cc31b2a883f1..ee13771eb54cda4399a7faa8a9b3a4ef3db82030 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -251,8 +251,6 @@ struct wilc_hif_func {
 	int (*hif_block_tx_ext)(u32, u8 *, u32);
 	int (*hif_block_rx_ext)(u32, u8 *, u32);
 	int (*hif_sync_ext)(int);
-	void (*hif_set_max_bus_speed)(void);
-	void (*hif_set_default_bus_speed)(void);
 	int (*enable_interrupt)(struct wilc *nic);
 	void (*disable_interrupt)(struct wilc *nic);
 };