+#define EEPROM_LEN 256
+void load_sernum_ethaddr (void)
+{
+ int ret;
+ char buf[EEPROM_LEN];
+ char mac[32];
+ char *use_eeprom;
+ u16 checksumcrc16 = 0;
+
+ /* read the MACs from EEprom */
+ status_led_set (0, STATUS_LED_ON);
+ status_led_set (1, STATUS_LED_ON);
+ ret = eeprom_read (CFG_I2C_EEPROM_ADDR, 0, (uchar *)buf, EEPROM_LEN);
+ if (ret == 0) {
+ checksumcrc16 = cyg_crc16 ((uchar *)buf, EEPROM_LEN - 2);
+ /* check, if the EEprom is programmed:
+ * - The Prefix(Byte 0,1,2) is equal to "ATR"
+ * - The checksum, stored in the last 2 Bytes, is correct
+ */
+ if ((strncmp (buf,"ATR",3) != 0) ||
+ ((checksumcrc16 >> 8) != buf[EEPROM_LEN - 2]) ||
+ ((checksumcrc16 & 0xff) != buf[EEPROM_LEN - 1])) {
+ /* EEprom is not programmed */
+ printf("%s: EEPROM Checksum not OK\n", __FUNCTION__);
+ } else {
+ /* get the MACs */
+ sprintf (mac, "%02x:%02x:%02x:%02x:%02x:%02x",
+ buf[3],
+ buf[4],
+ buf[5],
+ buf[6],
+ buf[7],
+ buf[8]);
+ setenv ("ethaddr", (char *) mac);
+ sprintf (mac, "%02x:%02x:%02x:%02x:%02x:%02x",
+ buf[9],
+ buf[10],
+ buf[11],
+ buf[12],
+ buf[13],
+ buf[14]);
+ setenv ("eth1addr", (char *) mac);
+ return;
+ }
+ }
+
+ /* some error reading the EEprom */
+ if ((use_eeprom = getenv ("use_eeprom_ethaddr")) == NULL) {
+ /* dont use bootcmd */
+ setenv("bootdelay", "-1");
+ return;
+ }
+ /* == default ? use standard */
+ if (strncmp (use_eeprom, "default", 7) == 0) {
+ return;
+ }
+ /* Env doesnt exist -> hang */
+ status_led_blink ();
+ /* here we do this "handy" because we have no interrupts
+ at this time */
+ puts ("### EEPROM ERROR ### Please RESET the board ###\n");
+ for (;;) {
+ __led_toggle (12);
+ udelay (100000);
+ }
+ return;
+}
+
+#ifdef CONFIG_PREBOOT
+
+static uchar kbd_magic_prefix[] = "key_magic";
+static uchar kbd_command_prefix[] = "key_cmd";
+
+struct kbd_data_t {
+ char s1;
+ char s2;
+};
+
+struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
+{
+ char *val;
+ unsigned long tmp;
+
+ /* use the DIPs for some bootoptions */
+ val = getenv (ENV_NAME_DIP);
+ tmp = simple_strtoul (val, NULL, 16);
+
+ kbd_data->s2 = (tmp & 0x0f);
+ kbd_data->s1 = (tmp & 0xf0) >> 4;
+ return kbd_data;
+}
+
+static int compare_magic (const struct kbd_data_t *kbd_data, char *str)
+{
+ char s1 = str[0];
+
+ if (s1 >= '0' && s1 <= '9')
+ s1 -= '0';
+ else if (s1 >= 'a' && s1 <= 'f')
+ s1 = s1 - 'a' + 10;
+ else if (s1 >= 'A' && s1 <= 'F')
+ s1 = s1 - 'A' + 10;
+ else
+ return -1;
+
+ if (s1 != kbd_data->s1) return -1;
+
+ s1 = str[1];
+ if (s1 >= '0' && s1 <= '9')
+ s1 -= '0';
+ else if (s1 >= 'a' && s1 <= 'f')
+ s1 = s1 - 'a' + 10;
+ else if (s1 >= 'A' && s1 <= 'F')
+ s1 = s1 - 'A' + 10;
+ else
+ return -1;
+
+ if (s1 != kbd_data->s2) return -1;
+ return 0;
+}
+
+static char *key_match (const struct kbd_data_t *kbd_data)
+{
+ char magic[sizeof (kbd_magic_prefix) + 1];
+ char *suffix;
+ char *kbd_magic_keys;
+
+ /*
+ * The following string defines the characters that can be appended
+ * to "key_magic" to form the names of environment variables that
+ * hold "magic" key codes, i. e. such key codes that can cause
+ * pre-boot actions. If the string is empty (""), then only
+ * "key_magic" is checked (old behaviour); the string "125" causes
+ * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
+ */
+ if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
+ kbd_magic_keys = "";
+
+ /* loop over all magic keys;
+ * use '\0' suffix in case of empty string
+ */
+ for (suffix = kbd_magic_keys; *suffix ||
+ suffix == kbd_magic_keys; ++suffix) {
+ sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
+ if (compare_magic (kbd_data, getenv (magic)) == 0) {
+ char cmd_name[sizeof (kbd_command_prefix) + 1];
+ char *cmd;
+
+ sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
+ cmd = getenv (cmd_name);
+
+ return (cmd);
+ }
+ }
+ return (NULL);
+}
+
+#endif /* CONFIG_PREBOOT */
+
+static int pcs440ep_readinputs (void)
+{
+ int i;
+ char value[20];
+
+ /* read the inputs and set the Envvars */
+ /* Revision Level Bit 26 - 29 */
+ i = ((in32 (GPIO0_IR) & 0x0000003c) >> 2);
+ i = swapbits[i];
+ sprintf (value, "%02x", i);
+ setenv (ENV_NAME_REVLEV, value);
+ /* Solder Switch Bit 30 - 33 */
+ i = (in32 (GPIO0_IR) & 0x00000003) << 2;
+ i += (in32 (GPIO1_IR) & 0xc0000000) >> 30;
+ i = swapbits[i];
+ sprintf (value, "%02x", i);
+ setenv (ENV_NAME_SOLDER, value);
+ /* DIP Switch Bit 49 - 56 */
+ i = ((in32 (GPIO1_IR) & 0x00007f80) >> 7);
+ i = (swapbits[i & 0x0f] << 4) + swapbits[(i & 0xf0) >> 4];
+ sprintf (value, "%02x", i);
+ setenv (ENV_NAME_DIP, value);
+ return 0;
+}
+
+
+#if defined(CONFIG_SHA1_CHECK_UB_IMG)
+/*************************************************************************
+ * calculate a SHA1 sum for the U-Boot image in Flash.
+ *
+ ************************************************************************/
+static int pcs440ep_sha1 (int docheck)
+{
+ unsigned char *data;
+ unsigned char *ptroff;
+ unsigned char output[20];
+ unsigned char org[20];
+ int i, len = CONFIG_SHA1_LEN;
+
+ memcpy ((char *)CFG_LOAD_ADDR, (char *)CONFIG_SHA1_START, len);
+ data = (unsigned char *)CFG_LOAD_ADDR;
+ ptroff = &data[len + SHA1_SUM_POS];
+
+ for (i = 0; i < SHA1_SUM_LEN; i++) {
+ org[i] = ptroff[i];
+ ptroff[i] = 0;
+ }
+
+ sha1_csum ((unsigned char *) data, len, (unsigned char *)output);
+
+ if (docheck == 2) {
+ for (i = 0; i < 20 ; i++) {
+ printf("%02X ", output[i]);
+ }
+ printf("\n");
+ }
+ if (docheck == 1) {
+ for (i = 0; i < 20 ; i++) {
+ if (org[i] != output[i]) return 1;
+ }
+ }
+ return 0;
+}
+
+/*************************************************************************
+ * do some checks after the SHA1 checksum from the U-Boot Image was
+ * calculated.
+ *
+ ************************************************************************/
+static void pcs440ep_checksha1 (void)
+{
+ int ret;
+ char *cs_test;
+
+ status_led_set (0, STATUS_LED_OFF);
+ status_led_set (1, STATUS_LED_OFF);
+ status_led_set (2, STATUS_LED_ON);
+ ret = pcs440ep_sha1 (1);
+ if (ret == 0) return;
+
+ if ((cs_test = getenv ("cs_test")) == NULL) {
+ /* Env doesnt exist -> hang */
+ status_led_blink ();
+ /* here we do this "handy" because we have no interrupts
+ at this time */
+ puts ("### SHA1 ERROR ### Please RESET the board ###\n");
+ for (;;) {
+ __led_toggle (2);
+ udelay (100000);
+ }
+ }
+
+ if (strncmp (cs_test, "off", 3) == 0) {
+ printf ("SHA1 U-Boot sum NOT ok!\n");
+ setenv ("bootdelay", "-1");
+ }
+}
+#else
+static __inline__ void pcs440ep_checksha1 (void) { do {} while (0);}
+#endif
+