#include "cs5535_smbus.h" #define SMBUS_IO_BASE 0x6000 /* initialization for SMBus Controller */ static void cs5535_enable_smbus(void) { unsigned char val; /* reset SMBUS controller */ outb(0, SMBUS_IO_BASE + SMB_CTRL2); /* Set SCL freq and enable SMB controller */ val = inb(SMBUS_IO_BASE + SMB_CTRL2); val |= ((0x20 << 1) | SMB_CTRL2_ENABLE); outb(val, SMBUS_IO_BASE + SMB_CTRL2); /* Setup SMBus host controller address to 0xEF */ val = inb(SMBUS_IO_BASE + SMB_ADD); val |= (0xEF | SMB_ADD_SAEN); outb(val, SMBUS_IO_BASE + SMB_ADD); }