+int i2c_init_board(void)
+{
+ int i, icr;
+
+ /* disable I2C controller first, otherwhise it thinks we want to */
+ /* talk to the slave port... */
+ icr = ICR; ICR &= ~(ICR_SCLE | ICR_IUE);
+
+ /* set gpio pin low _before_ we change direction to output */
+ GPCR(70) = GPIO_bit(70);
+
+ /* now toggle between output=low and high-impedance */
+ for (i = 0; i < 20; i++) {
+ GPDR(70) |= GPIO_bit(70); /* output */
+ udelay(10);
+ GPDR(70) &= ~GPIO_bit(70); /* input */
+ udelay(10);
+ }
+
+ ICR = icr;
+
+ return 0;
+}
+
+
+/**
+ * misc_init_r: - misc initialisation routines
+ */
+
+int misc_init_r(void)
+{
+ uchar *str;
+
+ /* determine if the software update key is pressed during startup */
+ if (GPLR0 & 0x00000800) {
+ printf("using bootcmd_normal (sw-update button not pressed)\n");
+ str = getenv("bootcmd_normal");
+ } else {
+ printf("using bootcmd_update (sw-update button pressed)\n");
+ str = getenv("bootcmd_update");
+ }
+
+ setenv("bootcmd",str);
+
+ return 0;
+}