diff --git a/cbtable.c b/cbtable.c
index 4aa260b..96b5d96 100644
--- a/cbtable.c
+++ b/cbtable.c
@@ -207,7 +207,7 @@
 			(((char *)lb_table) + lb_table->header_bytes);
 		if (forward->tag == LB_TAG_FORWARD) {
 			start = forward->forward;
-			start &= ~(getpagesize()-1);
+			start &= ~(getpagesize() - 1);
 			physunmap(table_area, BYTES_TO_MAP);
 			table_area = physmap("high tables", start, BYTES_TO_MAP);
 			lb_table = find_lb_table(table_area, 0x00000, 0x1000);
diff --git a/chipset_enable.c b/chipset_enable.c
index 3eb8b28..21864af 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -846,7 +846,7 @@
 	}
 
 	/* 4. Clean up */
-	munmap (mmcr, getpagesize());
+	munmap(mmcr, getpagesize());
 	return 0;
 }
 
diff --git a/ichspi.c b/ichspi.c
index 5de654b..19f4b80 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -19,7 +19,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
- *
  */
 
 /*
@@ -340,7 +339,7 @@
  *
  * It should be called before ICH sends any spi command.
  */
-int ich_init_opcodes()
+int ich_init_opcodes(void)
 {
 	int rc = 0;
 	OPCODES *curopcodes_done;
@@ -429,8 +428,8 @@
 	opmenu = REGREAD32(ICH7_REG_OPMENU);
 	opmenu |= ((uint64_t)REGREAD32(ICH7_REG_OPMENU + 4)) << 32;
 
-	for (opcode_index=0; opcode_index<8; opcode_index++) {
-		if((opmenu & 0xff) == op.opcode) {
+	for (opcode_index = 0; opcode_index < 8; opcode_index++) {
+		if ((opmenu & 0xff) == op.opcode) {
 			break;
 		}
 		opmenu >>= 8;
@@ -525,7 +524,6 @@
 			REGWRITE32(ICH9_REG_FDATA0 +
 				   ((a - 1) - ((a - 1) % 4)), temp32);
 		}
-
 	}
 
 	/* Assemble SSFS + SSFC */
@@ -547,8 +545,8 @@
 	opmenu = REGREAD32(ICH9_REG_OPMENU);
 	opmenu |= ((uint64_t)REGREAD32(ICH9_REG_OPMENU + 4)) << 32;
 
-	for (opcode_index=0; opcode_index<8; opcode_index++) {
-		if((opmenu & 0xff) == op.opcode) {
+	for (opcode_index = 0; opcode_index < 8; opcode_index++) {
+		if ((opmenu & 0xff) == op.opcode) {
 			break;
 		}
 		opmenu >>= 8;
diff --git a/m29f002.c b/m29f002.c
index a0fdf55..040cd2a 100644
--- a/m29f002.c
+++ b/m29f002.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of flashrom.
+ * This file is part of the flashrom project.
  *
  * Copyright (C) 2009 Peter Stuge <peter@stuge.se>
  *
@@ -20,7 +20,8 @@
 
 #include "flash.h"
 
-int erase_m29f002(struct flashchip *flash) {
+int erase_m29f002(struct flashchip *flash)
+{
 	volatile uint8_t *bios = flash->virtual_memory;
 	chip_writeb(0xaa, bios + 0x555);
 	chip_writeb(0x55, bios + 0xaaa);
@@ -33,7 +34,9 @@
 	return 0;
 }
 
-static void rewrite_block(volatile uint8_t *bios, uint8_t *src, volatile uint8_t *dst, int size) {
+static void rewrite_block(volatile uint8_t *bios, uint8_t *src,
+			  volatile uint8_t *dst, int size)
+{
 	/* erase */
 	chip_writeb(0xaa, bios + 0x555);
 	chip_writeb(0x55, bios + 0xaaa);
@@ -56,13 +59,16 @@
 	}
 }
 
-static void do_block(volatile uint8_t *bios, uint8_t *src, int i, unsigned long start, int size) {
+static void do_block(volatile uint8_t *bios, uint8_t *src, int i,
+		     unsigned long start, int size)
+{
 	printf("%d at address: 0x%08lx", i, start);
 	rewrite_block(bios, src + start, bios + start, size);
 	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
 }
 
-int write_m29f002t(struct flashchip *flash, uint8_t *buf) {
+int write_m29f002t(struct flashchip *flash, uint8_t *buf)
+{
 	int i, page_size = flash->page_size;
 	volatile uint8_t *bios = flash->virtual_memory;
 
@@ -73,17 +79,18 @@
 
 	printf("Programming block: ");
 	for (i = 0; i < 3; i++)
-		do_block(bios, buf, i, i*page_size, page_size);
-	do_block(bios, buf, i++, 0x30000, 32*1024);
-	do_block(bios, buf, i++, 0x38000, 8*1024);
-	do_block(bios, buf, i++, 0x3a000, 8*1024);
-	do_block(bios, buf, i, 0x3c000, 16*1024);
+		do_block(bios, buf, i, i * page_size, page_size);
+	do_block(bios, buf, i++, 0x30000, 32 * 1024);
+	do_block(bios, buf, i++, 0x38000, 8 * 1024);
+	do_block(bios, buf, i++, 0x3a000, 8 * 1024);
+	do_block(bios, buf, i, 0x3c000, 16 * 1024);
 
 	printf("\n");
 	return 0;
 }
 
-int write_m29f002b(struct flashchip *flash, uint8_t *buf) {
+int write_m29f002b(struct flashchip *flash, uint8_t *buf)
+{
 	int i = 0, page_size = flash->page_size;
 	volatile uint8_t *bios = flash->virtual_memory;
 
@@ -93,12 +100,12 @@
 	 */
 
 	printf("Programming block: ");
-	do_block(bios, buf, i++, 0x00000, 16*1024);
-	do_block(bios, buf, i++, 0x04000, 8*1024);
-	do_block(bios, buf, i++, 0x06000, 8*1024);
-	do_block(bios, buf, i++, 0x08000, 32*1024);
+	do_block(bios, buf, i++, 0x00000, 16 * 1024);
+	do_block(bios, buf, i++, 0x04000, 8 * 1024);
+	do_block(bios, buf, i++, 0x06000, 8 * 1024);
+	do_block(bios, buf, i++, 0x08000, 32 * 1024);
 	for (; i < 7; i++)
-		do_block(bios, buf, i, (i-3)*page_size, page_size);
+		do_block(bios, buf, i, (i - 3) * page_size, page_size);
 
 	printf("\n");
 	return 0;
diff --git a/physmap.c b/physmap.c
index 0fb6c5c..49e1bfc 100644
--- a/physmap.c
+++ b/physmap.c
@@ -16,6 +16,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -55,13 +56,14 @@
 
 	if (-1 == fd_mem) {
 		/* Open the memory device UNCACHED. Important for MMIO. */
-		if (-1 == (fd_mem = open(MEM_DEV, O_RDWR|O_SYNC))) {
+		if (-1 == (fd_mem = open(MEM_DEV, O_RDWR | O_SYNC))) {
 			perror("Critical error: open(" MEM_DEV ")");
 			exit(2);
 		}
 	}
 
-	virt_addr = mmap(0, len, PROT_WRITE|PROT_READ, MAP_SHARED, fd_mem, (off_t)phys_addr);
+	virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
+			 fd_mem, (off_t)phys_addr);
 	return MAP_FAILED == virt_addr ? NULL : virt_addr;
 }
 
diff --git a/spi.c b/spi.c
index 57f4b13..036c836 100644
--- a/spi.c
+++ b/spi.c
@@ -85,7 +85,7 @@
 	return 0;
 }
 
-int spi_write_enable()
+int spi_write_enable(void)
 {
 	const unsigned char cmd[JEDEC_WREN_OUTSIZE] = { JEDEC_WREN };
 
@@ -93,7 +93,7 @@
 	return spi_command(sizeof(cmd), 0, cmd, NULL);
 }
 
-int spi_write_disable()
+int spi_write_disable(void)
 {
 	const unsigned char cmd[JEDEC_WRDI_OUTSIZE] = { JEDEC_WRDI };
 
@@ -229,7 +229,7 @@
 	return 1;
 }
 
-uint8_t spi_read_status_register()
+uint8_t spi_read_status_register(void)
 {
 	const unsigned char cmd[JEDEC_RDSR_OUTSIZE] = { JEDEC_RDSR };
 	unsigned char readarr[2]; /* JEDEC_RDSR_INSIZE=1 but wbsio needs 2 */
@@ -245,8 +245,7 @@
 	return readarr[0];
 }
 
-/* Prettyprint the status register. Common definitions.
- */
+/* Prettyprint the status register. Common definitions. */
 void spi_prettyprint_status_register_common(uint8_t status)
 {
 	printf_debug("Chip status register: Bit 5 / Block Protect 3 (BP3) is "
@@ -501,7 +500,7 @@
 	return 0;
 }
 
-int spi_write_status_enable()
+int spi_write_status_enable(void)
 {
 	const unsigned char cmd[JEDEC_EWSR_OUTSIZE] = { JEDEC_EWSR };
 
@@ -616,15 +615,17 @@
 	return 1;
 }
 
-int spi_aai_write(struct flashchip *flash, uint8_t *buf) {
+int spi_aai_write(struct flashchip *flash, uint8_t *buf)
+{
 	uint32_t pos = 2, size = flash->total_size * 1024;
 	unsigned char w[6] = {0xad, 0, 0, 0, buf[0], buf[1]};
 	switch (flashbus) {
-		case BUS_TYPE_WBSIO_SPI:
-			fprintf(stderr, "%s: impossible with Winbond SPI masters, degrading to byte program\n", __func__);
-			return spi_chip_write(flash, buf);
-		default:
-			break;
+	case BUS_TYPE_WBSIO_SPI:
+		fprintf(stderr, "%s: impossible with Winbond SPI masters,"
+				" degrading to byte program\n", __func__);
+		return spi_chip_write(flash, buf);
+	default:
+		break;
 	}
 	flash->erase(flash);
 	spi_write_enable();
diff --git a/udelay.c b/udelay.c
index 5bf441a..516e208 100644
--- a/udelay.c
+++ b/udelay.c
@@ -31,7 +31,7 @@
 	for (i = 0; i < time * micro; i++) ;
 }
 
-void myusec_calibrate_delay()
+void myusec_calibrate_delay(void)
 {
 	int count = 1000;
 	unsigned long timeusec;
diff --git a/wbsio_spi.c b/wbsio_spi.c
index 5ad9455..a3e96fd 100644
--- a/wbsio_spi.c
+++ b/wbsio_spi.c
@@ -29,13 +29,14 @@
 
 static uint16_t wbsio_spibase = 0;
 
-static uint16_t wbsio_get_spibase(uint16_t port) {
+static uint16_t wbsio_get_spibase(uint16_t port)
+{
 	uint8_t id;
 	uint16_t flashport = 0;
 
 	w836xx_ext_enter(port);
 	id = wbsio_read(port, 0x20);
-	if(id != 0xa0) {
+	if (id != 0xa0) {
 		fprintf(stderr, "\nW83627 not found at 0x%x, id=0x%02x want=0xa0.\n", port, id);
 		goto done;
 	}
@@ -58,7 +59,8 @@
 	return flashport;
 }
 
-int wbsio_check_for_spi(const char *name) {
+int wbsio_check_for_spi(const char *name)
+{
 	if (0 == (wbsio_spibase = wbsio_get_spibase(WBSIO_PORT1)))
 		if (0 == (wbsio_spibase = wbsio_get_spibase(WBSIO_PORT2)))
 			return 1;
@@ -88,7 +90,9 @@
  * Would one more byte of RAM in the chip (to get all 24 bits) really make
  * such a big difference?
  */
-int wbsio_spi_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr) {
+int wbsio_spi_command(unsigned int writecnt, unsigned int readcnt,
+		      const unsigned char *writearr, unsigned char *readarr)
+{
 	int i;
 	uint8_t mode = 0;
 
@@ -169,7 +173,8 @@
 	return 0;
 }
 
-int wbsio_spi_read(struct flashchip *flash, uint8_t *buf) {
+int wbsio_spi_read(struct flashchip *flash, uint8_t *buf)
+{
 	int size = flash->total_size * 1024;
 
 	if (flash->total_size > 1024) {
@@ -181,7 +186,8 @@
 	return 0;
 }
 
-int wbsio_spi_write(struct flashchip *flash, uint8_t *buf) {
+int wbsio_spi_write(struct flashchip *flash, uint8_t *buf)
+{
 	int pos, size = flash->total_size * 1024;
 
 	if (flash->total_size > 1024) {