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authorwdenk <wdenk>2002-10-25 20:35:49 +0000
committerwdenk <wdenk>2002-10-25 20:35:49 +0000
commit217c9dad827c91a7ac168a8eaacf0e17af7608b9 (patch)
tree07a002742d97f8005a63ff95fff55e266d6ad2f1 /board/eltec/elppc/eepro100_srom.c
parentce23b153d8aa8c235ea59c78b12bd7f1aa3cc57b (diff)
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Initial revision
Diffstat (limited to 'board/eltec/elppc/eepro100_srom.c')
-rw-r--r--board/eltec/elppc/eepro100_srom.c113
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diff --git a/board/eltec/elppc/eepro100_srom.c b/board/eltec/elppc/eepro100_srom.c
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+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Local network srom writing for first time run
+ */
+
+/* includes */
+#include <common.h>
+#include <pci.h>
+#include <net.h>
+#include "srom.h"
+
+extern int eepro100_write_eeprom (struct eth_device* dev,
+ int location, int addr_len, unsigned short data);
+
+/*----------------------------------------------------------------------------*/
+
+unsigned short eepro100_srom_checksum (unsigned short *sromdata)
+{
+ unsigned short sum = 0;
+ unsigned int i;
+
+ for (i = 0; i < (EE_SIZE-1); i++)
+ {
+ sum += sromdata[i];
+ }
+ return (EE_CHECKSUM - sum);
+}
+
+/*----------------------------------------------------------------------------*/
+
+int eepro100_srom_store (unsigned short *source)
+{
+ int count;
+ struct eth_device onboard_dev;
+
+ /* get onboard network iobase */
+ pci_read_config_dword(PCI_BDF(0,0x10,0), PCI_BASE_ADDRESS_0,
+ &onboard_dev.iobase);
+ onboard_dev.iobase &= ~0xf;
+
+ source[63] = eepro100_srom_checksum (source);
+
+ for (count=0; count < EE_SIZE; count++)
+ {
+ if ( eepro100_write_eeprom ((struct eth_device*)&onboard_dev,
+ count, EE_ADDR_BITS, SROM_SHORT(source)) == -1 )
+ return -1;
+ source++;
+ }
+ return 0;
+}
+
+/*----------------------------------------------------------------------------*/
+
+#ifdef EEPRO100_SROM_CHECK
+
+extern int read_eeprom (struct eth_device* dev, int location, int addr_len);
+
+void eepro100_srom_load (unsigned short *destination)
+{
+ int count;
+ struct eth_device onboard_dev;
+#ifdef DEBUG
+ int lr = 0;
+ printf ("eepro100_srom_download:\n");
+#endif
+
+ /* get onboard network iobase */
+ pci_read_config_dword(PCI_BDF(0,0x10,0), PCI_BASE_ADDRESS_0,
+ &onboard_dev.iobase);
+ onboard_dev.iobase &= ~0xf;
+
+ memset (destination, 0x65, 128);
+
+ for (count=0; count < 0x40; count++)
+ {
+ *destination++ = read_eeprom (struct eth_device*)&onboard_dev,
+ count, EE_ADDR_BITS);
+#ifdef DEBUG
+ printf ("%04x ", *(destination - 1));
+ if (lr++ == 7)
+ {
+ printf("\n");
+ lr = 0;
+ }
+#endif
+ }
+}
+#endif /* EEPRO100_SROM_CHECK */
+
+/*----------------------------------------------------------------------------*/