diff --git a/buspirate_spi.c b/buspirate_spi.c
index 09f10c3..fb066c2 100644
--- a/buspirate_spi.c
+++ b/buspirate_spi.c
@@ -133,7 +133,6 @@
 					 const unsigned char *writearr, unsigned char *readarr);
 
 static struct spi_master spi_master_buspirate = {
-	.type		= SPI_CONTROLLER_BUSPIRATE,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= MAX_DATA_UNSPECIFIED,
 	.max_data_write	= MAX_DATA_UNSPECIFIED,
@@ -663,4 +662,4 @@
 	memcpy(readarr, bp_commbuf + 1, readcnt);
 
 	return ret;
-}
\ No newline at end of file
+}
diff --git a/ch341a_spi.c b/ch341a_spi.c
index 83d5ccf..d3af32f 100644
--- a/ch341a_spi.c
+++ b/ch341a_spi.c
@@ -385,7 +385,6 @@
 }
 
 static const struct spi_master spi_master_ch341a_spi = {
-	.type		= SPI_CONTROLLER_CH341A_SPI,
 	.features	= SPI_MASTER_4BA,
 	/* flashrom's current maximum is 256 B. CH341A was tested on Linux and Windows to accept atleast
 	 * 128 kB. Basically there should be no hard limit because transfers are broken up into USB packets
diff --git a/dediprog.c b/dediprog.c
index 5af1eec..3566109 100644
--- a/dediprog.c
+++ b/dediprog.c
@@ -966,7 +966,6 @@
 }
 
 static struct spi_master spi_master_dediprog = {
-	.type		= SPI_CONTROLLER_DEDIPROG,
 	.features	= SPI_MASTER_NO_4BA_MODES,
 	.max_data_read	= 16, /* 18 seems to work fine as well, but 19 times out sometimes with FW 5.15. */
 	.max_data_write	= 16,
diff --git a/digilent_spi.c b/digilent_spi.c
index d42c90f..13a876e 100644
--- a/digilent_spi.c
+++ b/digilent_spi.c
@@ -313,7 +313,6 @@
 }
 
 static const struct spi_master spi_master_digilent_spi = {
-	.type		= SPI_CONTROLLER_DIGILENT_SPI,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= 252,
 	.max_data_write	= 252,
diff --git a/dummyflasher.c b/dummyflasher.c
index 2ff9898..8f3dfda 100644
--- a/dummyflasher.c
+++ b/dummyflasher.c
@@ -107,7 +107,6 @@
 static void dummy_chip_readn(const struct flashctx *flash, uint8_t *buf, const chipaddr addr, size_t len);
 
 static const struct spi_master spi_master_dummyflasher = {
-	.type		= SPI_CONTROLLER_DUMMY,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= MAX_DATA_READ_UNLIMITED,
 	.max_data_write	= MAX_DATA_UNSPECIFIED,
diff --git a/ft2232_spi.c b/ft2232_spi.c
index 5c4d06b..34b43dd 100644
--- a/ft2232_spi.c
+++ b/ft2232_spi.c
@@ -154,7 +154,6 @@
 				   unsigned char *readarr);
 
 static const struct spi_master spi_master_ft2232 = {
-	.type		= SPI_CONTROLLER_FT2232,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= 64 * 1024,
 	.max_data_write	= 256,
diff --git a/ichspi.c b/ichspi.c
index 6932678..6601040 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -1666,7 +1666,6 @@
 }
 
 static const struct spi_master spi_master_ich7 = {
-	.type = SPI_CONTROLLER_ICH7,
 	.max_data_read = 64,
 	.max_data_write = 64,
 	.command = ich_spi_send_command,
@@ -1677,7 +1676,6 @@
 };
 
 static const struct spi_master spi_master_ich9 = {
-	.type = SPI_CONTROLLER_ICH9,
 	.max_data_read = 64,
 	.max_data_write = 64,
 	.command = ich_spi_send_command,
@@ -1990,7 +1988,6 @@
 }
 
 static const struct spi_master spi_master_via = {
-	.type = SPI_CONTROLLER_VIA,
 	.max_data_read = 16,
 	.max_data_write = 16,
 	.command = ich_spi_send_command,
diff --git a/it85spi.c b/it85spi.c
index 3dbba78..3cd5514 100644
--- a/it85spi.c
+++ b/it85spi.c
@@ -276,7 +276,6 @@
 				   unsigned char *readarr);
 
 static const struct spi_master spi_master_it85xx = {
-	.type		= SPI_CONTROLLER_IT85XX,
 	.max_data_read	= 64,
 	.max_data_write	= 64,
 	.command	= it85xx_spi_send_command,
diff --git a/it87spi.c b/it87spi.c
index 9e7a8ea..f8b2b0f 100644
--- a/it87spi.c
+++ b/it87spi.c
@@ -108,7 +108,6 @@
 				      unsigned int start, unsigned int len);
 
 static const struct spi_master spi_master_it87xx = {
-	.type		= SPI_CONTROLLER_IT87XX,
 	.max_data_read	= MAX_DATA_UNSPECIFIED,
 	.max_data_write	= MAX_DATA_UNSPECIFIED,
 	.command	= it8716f_spi_send_command,
diff --git a/jlink_spi.c b/jlink_spi.c
index 08a9ba9..8a69b41 100644
--- a/jlink_spi.c
+++ b/jlink_spi.c
@@ -152,7 +152,6 @@
 }
 
 static const struct spi_master spi_master_jlink_spi = {
-	.type		= SPI_CONTROLLER_JLINK_SPI,
 	/* Maximum data read size in one go (excluding opcode+address). */
 	.max_data_read	= JTAG_MAX_TRANSFER_SIZE - 5,
 	/* Maximum data write size in one go (excluding opcode+address). */
diff --git a/linux_spi.c b/linux_spi.c
index 711ab4a..de09e60 100644
--- a/linux_spi.c
+++ b/linux_spi.c
@@ -54,7 +54,6 @@
 			       unsigned int start, unsigned int len);
 
 static const struct spi_master spi_master_linux = {
-	.type		= SPI_CONTROLLER_LINUX,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= MAX_DATA_UNSPECIFIED, /* TODO? */
 	.max_data_write	= MAX_DATA_UNSPECIFIED, /* TODO? */
diff --git a/mstarddc_spi.c b/mstarddc_spi.c
index afe4e12..db11157 100644
--- a/mstarddc_spi.c
+++ b/mstarddc_spi.c
@@ -220,7 +220,6 @@
 }
 
 static const struct spi_master spi_master_mstarddc = {
-	.type = SPI_CONTROLLER_MSTARDDC,
 	.max_data_read = 256,
 	.max_data_write = 256,
 	.command = mstarddc_spi_send_command,
diff --git a/pickit2_spi.c b/pickit2_spi.c
index 4354025..e13e721 100644
--- a/pickit2_spi.c
+++ b/pickit2_spi.c
@@ -350,7 +350,6 @@
 }
 
 static const struct spi_master spi_master_pickit2 = {
-	.type		= SPI_CONTROLLER_PICKIT2,
 	.max_data_read	= 40,
 	.max_data_write	= 40,
 	.command	= pickit2_spi_send_command,
diff --git a/programmer.h b/programmer.h
index 8f0183f..e342898 100644
--- a/programmer.h
+++ b/programmer.h
@@ -571,64 +571,6 @@
 char *extract_programmer_param(const char *param_name);
 
 /* spi.c */
-enum spi_controller {
-	SPI_CONTROLLER_NONE,
-#if CONFIG_INTERNAL == 1
-#if defined(__i386__) || defined(__x86_64__)
-	SPI_CONTROLLER_ICH7,
-	SPI_CONTROLLER_ICH9,
-	SPI_CONTROLLER_IT85XX,
-	SPI_CONTROLLER_IT87XX,
-	SPI_CONTROLLER_SB600,
-	SPI_CONTROLLER_YANGTZE,
-	SPI_CONTROLLER_VIA,
-	SPI_CONTROLLER_WBSIO,
-#endif
-#endif
-#if CONFIG_FT2232_SPI == 1
-	SPI_CONTROLLER_FT2232,
-#endif
-#if CONFIG_DUMMY == 1
-	SPI_CONTROLLER_DUMMY,
-#endif
-#if CONFIG_BUSPIRATE_SPI == 1
-	SPI_CONTROLLER_BUSPIRATE,
-#endif
-#if CONFIG_DEDIPROG == 1
-	SPI_CONTROLLER_DEDIPROG,
-#endif
-#if CONFIG_OGP_SPI == 1 || CONFIG_NICINTEL_SPI == 1 || CONFIG_RAYER_SPI == 1 || CONFIG_PONY_SPI == 1 || (CONFIG_INTERNAL == 1 && (defined(__i386__) || defined(__x86_64__)))
-	SPI_CONTROLLER_BITBANG,
-#endif
-#if CONFIG_LINUX_MTD == 1
-	SPI_CONTROLLER_LINUX_MTD,
-#endif
-#if CONFIG_LINUX_SPI == 1
-	SPI_CONTROLLER_LINUX,
-#endif
-#if CONFIG_SERPROG == 1
-	SPI_CONTROLLER_SERPROG,
-#endif
-#if CONFIG_USBBLASTER_SPI == 1
-	SPI_CONTROLLER_USBBLASTER,
-#endif
-#if CONFIG_MSTARDDC_SPI == 1
-	SPI_CONTROLLER_MSTARDDC,
-#endif
-#if CONFIG_PICKIT2_SPI == 1
-	SPI_CONTROLLER_PICKIT2,
-#endif
-#if CONFIG_CH341A_SPI == 1
-	SPI_CONTROLLER_CH341A_SPI,
-#endif
-#if CONFIG_DIGILENT_SPI == 1
-	SPI_CONTROLLER_DIGILENT_SPI,
-#endif
-#if CONFIG_JLINK_SPI == 1
-	SPI_CONTROLLER_JLINK_SPI,
-#endif
-};
-
 #define MAX_DATA_UNSPECIFIED 0
 #define MAX_DATA_READ_UNLIMITED 64 * 1024
 #define MAX_DATA_WRITE_UNLIMITED 256
@@ -638,7 +580,6 @@
 						        register, 4BA mode switch) don't work */
 
 struct spi_master {
-	enum spi_controller type;
 	uint32_t features;
 	unsigned int max_data_read; // (Ideally,) maximum data read size in one go (excluding opcode+address).
 	unsigned int max_data_write; // (Ideally,) maximum data write size in one go (excluding opcode+address).
diff --git a/sb600spi.c b/sb600spi.c
index 1efb2ce..fd9487c 100644
--- a/sb600spi.c
+++ b/sb600spi.c
@@ -61,7 +61,6 @@
 				  const unsigned char *writearr, unsigned char *readarr);
 
 static struct spi_master spi_master_sb600 = {
-	.type = SPI_CONTROLLER_SB600,
 	.max_data_read = FIFO_SIZE_OLD,
 	.max_data_write = FIFO_SIZE_OLD - 3,
 	.command = sb600_spi_send_command,
@@ -72,7 +71,6 @@
 };
 
 static struct spi_master spi_master_yangtze = {
-	.type = SPI_CONTROLLER_YANGTZE,
 	.max_data_read = FIFO_SIZE_YANGTZE - 3, /* Apparently the big SPI 100 buffer is not a ring buffer. */
 	.max_data_write = FIFO_SIZE_YANGTZE - 3,
 	.command = spi100_spi_send_command,
diff --git a/serprog.c b/serprog.c
index b7ef35c..b6c85c9 100644
--- a/serprog.c
+++ b/serprog.c
@@ -300,7 +300,6 @@
 				    const unsigned char *writearr,
 				    unsigned char *readarr);
 static struct spi_master spi_master_serprog = {
-	.type		= SPI_CONTROLLER_SERPROG,
 	.features	= SPI_MASTER_4BA,
 	.max_data_read	= MAX_DATA_READ_UNLIMITED,
 	.max_data_write	= MAX_DATA_WRITE_UNLIMITED,
diff --git a/usbblaster_spi.c b/usbblaster_spi.c
index f9d72c2..886cb57 100644
--- a/usbblaster_spi.c
+++ b/usbblaster_spi.c
@@ -208,7 +208,6 @@
 
 
 static const struct spi_master spi_master_usbblaster = {
-	.type		= SPI_CONTROLLER_USBBLASTER,
 	.max_data_read	= 256,
 	.max_data_write	= 256,
 	.command	= usbblaster_spi_send_command,
diff --git a/wbsio_spi.c b/wbsio_spi.c
index d7651c0..28b568e 100644
--- a/wbsio_spi.c
+++ b/wbsio_spi.c
@@ -65,7 +65,6 @@
 			  unsigned int start, unsigned int len);
 
 static const struct spi_master spi_master_wbsio = {
-	.type = SPI_CONTROLLER_WBSIO,
 	.max_data_read = MAX_DATA_UNSPECIFIED,
 	.max_data_write = MAX_DATA_UNSPECIFIED,
 	.command = wbsio_spi_send_command,