1 files changed, 0 insertions, 83 deletions
diff --git a/src/southbridge/intel/i82801cx/smbus.c b/src/southbridge/intel/i82801cx/smbus.c
deleted file mode 100644
index 324f82f286..0000000000
--- a/src/southbridge/intel/i82801cx/smbus.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <smbus.h>
-#include <pci.h>
-#include <arch/io.h>
-#include "i82801cx.h"
-
-#define PM_BUS 0
-#define PM_DEVFN PCI_DEVFN(0x1f,3)
-
-void smbus_enable(void)
-{
-	/* iobase addr */
-	pcibios_write_config_dword(PM_BUS, PM_DEVFN, SMB_BASE,
-							   SMBUS_IO_BASE | PCI_BASE_ADDRESS_SPACE_IO);
-	/* smbus enable */
-	pcibios_write_config_byte(PM_BUS, PM_DEVFN, HOSTC, HST_EN);
-	/* iospace enable */
-	pcibios_write_config_word(PM_BUS, PM_DEVFN, PCI_COMMAND, PCI_COMMAND_IO);
-
-    /* Disable interrupt generation */
-    outb(0, SMBUS_IO_BASE + SMBHSTCTL);
-}
-
-static void smbus_wait_until_ready(void)
-{
-	// Loop while HOST_BUSY
-	while((inb(SMBUS_IO_BASE + SMBHSTSTAT) & 1) == 1) {
-		/* nop */
-	}
-}
-
-static void smbus_wait_until_done(void)
-{
-	unsigned char byte;
-
-	// Loop while HOST_BUSY
-	do {
-		byte = inb(SMBUS_IO_BASE + SMBHSTSTAT);
-	}
-	while((byte &1) == 1);
-
-	// Wait for SUCCESS or error or BYTE_DONE
-	while( (byte & ~1) == 0) {
-		byte = inb(SMBUS_IO_BASE + SMBHSTSTAT);
-	}
-}
-
-int smbus_read_byte(unsigned device, unsigned address, unsigned char *result)
-{
-	unsigned char host_status_register;
-	unsigned char byte;
-
-	smbus_wait_until_ready();
-
-	/* setup transaction */
-	/* disable interrupts */
-	outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & (~1), SMBUS_IO_BASE + SMBHSTCTL);
-	/* set to read from the specified device  */
-	outb(((device & 0x7f) << 1) | 1, SMBUS_IO_BASE + SMBHSTADD);
-	/* 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 */
-	smbus_wait_until_done();
-
-	host_status_register = inb(SMBUS_IO_BASE + SMBHSTSTAT);
-
-	/* read results of transaction */
-	byte = inb(SMBUS_IO_BASE + SMBHSTDAT0);
-
-	*result = byte;
-	return host_status_register != 0x02;		// return true if !SUCCESS
-}