sb/intel/i82801ex: Remove unused code

Only board using this code was tyan s2735 which was removed in
f76de841f1 "[REMOVAL] tyan/s2735"

Change-Id: I03a101adc1eedfa9669e0b44c54c2c6fa08bd5f2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19507
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 0 insertions, 104 deletions

diff --git a/src/southbridge/intel/i82801ex/smbus.h b/src/southbridge/intel/i82801ex/smbus.h
deleted file mode 100644
index dbb7b7a416..0000000000
--- a/src/southbridge/intel/i82801ex/smbus.h
+++ /dev/null
@@ -1,104 +0,0 @@
-#include <device/smbus_def.h>
-
-#define SMBHSTSTAT 0x0
-#define SMBHSTCTL  0x2
-#define SMBHSTCMD  0x3
-#define SMBXMITADD 0x4
-#define SMBHSTDAT0 0x5
-#define SMBHSTDAT1 0x6
-#define SMBBLKDAT  0x7
-#define SMBTRNSADD 0x9
-#define SMBSLVDATA 0xa
-#define SMLINK_PIN_CTL 0xe
-#define SMBUS_PIN_CTL  0xf
-
-#define SMBUS_TIMEOUT (100*1000*10)
-
-
-static void smbus_delay(void)
-{
-	outb(0x80, 0x80);
-}
-
-static int smbus_wait_until_ready(unsigned smbus_io_base)
-{
-	unsigned loops = SMBUS_TIMEOUT;
-	unsigned char byte;
-	do {
-		smbus_delay();
-		if (--loops == 0)
-			break;
-		byte = inb(smbus_io_base + SMBHSTSTAT);
-	} while (byte & 1);
-	return loops?0:-1;
-}
-
-static int smbus_wait_until_done(unsigned smbus_io_base)
-{
-	unsigned loops = SMBUS_TIMEOUT;
-	unsigned char byte;
-	do {
-	        smbus_delay();
-	        if (--loops == 0)
-	               break;
-	        byte = inb(smbus_io_base + SMBHSTSTAT);
-	} while ((byte & 1) || (byte & ~((1<<6)|(1<<0))) == 0);
-	return loops?0:-1;
-}
-
-static inline int smbus_wait_until_blk_done(unsigned smbus_io_base)
-{
-	unsigned loops = SMBUS_TIMEOUT;
-	unsigned char byte;
-	do {
-	        smbus_delay();
-	        if (--loops == 0)
-	               break;
-	        byte = inb(smbus_io_base + SMBHSTSTAT);
-	} while ((byte&(1<<7)) == 0);
-	return loops?0:-1;
-}
-
-static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned address)
-{
-	unsigned char global_status_register;
-	unsigned char byte;
-
-	if (smbus_wait_until_ready(smbus_io_base) < 0) {
-		return SMBUS_WAIT_UNTIL_READY_TIMEOUT;
-	}
-	/* setup transaction */
-	/* disable interrupts */
-	outb(inb(smbus_io_base + SMBHSTCTL) & (~1), smbus_io_base + SMBHSTCTL);
-	/* set the device I'm talking too */
-	outb(((device & 0x7f) << 1) | 1, smbus_io_base + SMBXMITADD);
-	/* set the command/address... */
-	outb(address & 0xFF, smbus_io_base + SMBHSTCMD);
-	/* set up for a byte data read */
-	outb((inb(smbus_io_base + SMBHSTCTL) & 0xE3) | (0x2 << 2), smbus_io_base + SMBHSTCTL);
-	/* clear any lingering errors, so the transaction will run */
-	outb(inb(smbus_io_base + SMBHSTSTAT), smbus_io_base + SMBHSTSTAT);
-
-	/* clear the data byte...*/
-	outb(0, smbus_io_base + SMBHSTDAT0);
-
-	/* start the command */
-	outb((inb(smbus_io_base + SMBHSTCTL) | 0x40), smbus_io_base + SMBHSTCTL);
-
-	/* poll for transaction completion */
-	if (smbus_wait_until_done(smbus_io_base) < 0) {
-		return SMBUS_WAIT_UNTIL_DONE_TIMEOUT;
-	}
-
-	global_status_register = inb(smbus_io_base + SMBHSTSTAT);
-
-	/* Ignore the In Use Status... */
-	global_status_register &= ~(3 << 5);
-
-	/* read results of transaction */
-	byte = inb(smbus_io_base + SMBHSTDAT0);
-	if (global_status_register != (1 << 1)) {
-		return SMBUS_ERROR;
-	}
-	return byte;
-}