Move i2c support to common

src/board/arduino/mega2560/include/board/i2c.h

@@ -1,8 +1,6 @@
 #ifndef _BOARD_I2C_H
 #define _BOARD_I2C_H
 
-#include <arch/i2c.h>
-
 void i2c_init(unsigned long baud);
 
 #endif // _BOARD_I2C_H

src/board/system76/galp3-c/smbus.c

@@ -1,4 +1,5 @@
 #include <board/smbus.h>
+#include <ec/i2c.h>
 
 void smbus_init(void) {
     // 9.2 MHz * 4.7 us = 43.24
@@ -17,4 +18,7 @@ void smbus_init(void) {
 
     // Clock set to 50 Hz
     SCLKTSA = 1;
+
+    // Set up for i2c usage
+    i2c_reset(true);
 }

src/board/system76/galp3-c/stdio.c

@@ -1,9 +1,9 @@
 #include <stdio.h>
 
-#include <ec/i2c.h>
+#include <common/i2c.h>
 
 int putchar(int c) {
     unsigned char byte = (unsigned char)c;
-    i2c_write(0x76, &byte, 1);
+    i2c_send(0x76, &byte, 1);
     return (int)byte;
 }