+
+#if defined(CONFIG_RESET_PHY_R)
+void reset_phy(void)
+{
+#ifdef CONFIG_LXT971_NO_SLEEP
+
+ /*
+ * Disable sleep mode in LXT971
+ */
+ lxt971_no_sleep();
+#endif
+}
+#endif
+
+#if defined(CONFIG_SYS_EEPROM_WREN)
+/* Input: <dev_addr> I2C address of EEPROM device to enable.
+ * <state> -1: deliver current state
+ * 0: disable write
+ * 1: enable write
+ * Returns: -1: wrong device address
+ * 0: dis-/en- able done
+ * 0/1: current state if <state> was -1.
+ */
+int eeprom_write_enable (unsigned dev_addr, int state)
+{
+ if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) {
+ return -1;
+ } else {
+ switch (state) {
+ case 1:
+ /* Enable write access, clear bit GPIO0. */
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_EEPROM_WP);
+ state = 0;
+ break;
+ case 0:
+ /* Disable write access, set bit GPIO0. */
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
+ state = 0;
+ break;
+ default:
+ /* Read current status back. */
+ state = (0 == (in_be32((void*)GPIO0_OR) & CONFIG_SYS_EEPROM_WP));
+ break;
+ }
+ }
+ return state;
+}
+
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int query = argc == 1;
+ int state = 0;
+
+ if (query) {
+ /* Query write access state. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, -1);
+ if (state < 0) {
+ puts ("Query of write access state failed.\n");
+ } else {
+ printf ("Write access for device 0x%0x is %sabled.\n",
+ CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis");
+ state = 0;
+ }
+ } else {
+ if ('0' == argv[1][0]) {
+ /* Disable write access. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 0);
+ } else {
+ /* Enable write access. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 1);
+ }
+ if (state < 0) {
+ puts ("Setup of write access state failed.\n");
+ }
+ }
+
+ return state;
+}
+
+U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
+ "eepwren - Enable / disable / query EEPROM write access\n",
+ NULL);
+#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */