upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/eltec/elppc/eepro100_srom.c

98 lines
2.2 KiB

/*
* (C) Copyright 2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* 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,
(unsigned int *) &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 */
/*----------------------------------------------------------------------------*/