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/*
* (C) Copyright 2001
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <pci.h>
#include <asm/io.h>
#define OK 0
#define ERROR (-1)
extern u_long pci9054_iobase;
/***************************************************************************
*
* Routines for PLX PCI9054 eeprom access
*
*/
static unsigned int PciEepromReadLongVPD (int offs)
{
unsigned int value;
unsigned int ret;
int count;
pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c,
(offs << 16) | 0x0003);
count = 0;
for (;;) {
udelay (10 * 1000);
pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c, &ret);
if ((ret & 0x80000000) != 0) {
break;
} else {
count++;
if (count > 10) {
printf ("\nTimeout: ret=%08x - Please try again!\n", ret);
break;
}
}
}
pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x50, &value);
return value;
}
static int PciEepromWriteLongVPD (int offs, unsigned int value)
{
unsigned int ret;
int count;
pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x50, value);
pci_write_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c,
(offs << 16) | 0x80000003);
count = 0;
for (;;) {
udelay (10 * 1000);
pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN, 0x4c, &ret);
if ((ret & 0x80000000) == 0) {
break;
} else {
count++;
if (count > 10) {
printf ("\nTimeout: ret=%08x - Please try again!\n", ret);
break;
}
}
}
return true;
}
static void showPci9054 (void)
{
int val;
int l, i;
/* read 9054-values */
for (l = 0; l < 6; l++) {
printf ("%02x: ", l * 0x10);
for (i = 0; i < 4; i++) {
pci_read_config_dword (CONFIG_SYS_PCI9054_DEV_FN,
l * 16 + i * 4,
(unsigned int *)&val);
printf ("%08x ", val);
}
printf ("\n");
}
printf ("\n");
for (l = 0; l < 7; l++) {
printf ("%02x: ", l * 0x10);
for (i = 0; i < 4; i++)
printf ("%08x ",
PciEepromReadLongVPD ((i + l * 4) * 4));
printf ("\n");
}
printf ("\n");
}
static void updatePci9054 (void)
{
/*
* Set EEPROM write-protect register to 0
*/
out_be32 ((void *)(pci9054_iobase + 0x0c),
in_be32 ((void *)(pci9054_iobase + 0x0c)) & 0xffff00ff);
/* Long Serial EEPROM Load Registers... */
PciEepromWriteLongVPD (0x00, 0x905410b5);
PciEepromWriteLongVPD (0x04, 0x09800001); /* other input controller */
PciEepromWriteLongVPD (0x08, 0x28140100);
PciEepromWriteLongVPD (0x0c, 0x00000000); /* MBOX0... */
PciEepromWriteLongVPD (0x10, 0x00000000);
/* las0: fpga access (0x0000.0000 ... 0x0003.ffff) */
PciEepromWriteLongVPD (0x14, 0xfffc0000); /* LAS0RR... */
PciEepromWriteLongVPD (0x18, 0x00000001); /* LAS0BA */
PciEepromWriteLongVPD (0x1c, 0x00200000); /* MARBR... */
PciEepromWriteLongVPD (0x20, 0x00300500); /* LMISC/BIGEND */
PciEepromWriteLongVPD (0x24, 0x00000000); /* EROMRR... */
PciEepromWriteLongVPD (0x28, 0x00000000); /* EROMBA */
PciEepromWriteLongVPD (0x2c, 0x43030000); /* LBRD0... */
PciEepromWriteLongVPD (0x30, 0x00000000); /* DMRR... */
PciEepromWriteLongVPD (0x34, 0x00000000);
PciEepromWriteLongVPD (0x38, 0x00000000);
PciEepromWriteLongVPD (0x3c, 0x00000000); /* DMPBAM... */
PciEepromWriteLongVPD (0x40, 0x00000000);
/* Extra Long Serial EEPROM Load Registers... */
PciEepromWriteLongVPD (0x44, 0x010212fe); /* PCISID... */
/* las1: 505-sram access (0x0004.0000 ... 0x001f.ffff) */
/* Offset to LAS1: Group 1: 0x00040000 */
/* Group 2: 0x00080000 */
/* Group 3: 0x000c0000 */
PciEepromWriteLongVPD (0x48, 0xffe00000); /* LAS1RR */
PciEepromWriteLongVPD (0x4c, 0x00040001); /* LAS1BA */
PciEepromWriteLongVPD (0x50, 0x00000208); /* LBRD1 */ /* so wars bisher */
PciEepromWriteLongVPD (0x54, 0x00004c06); /* HotSwap... */
printf ("Finished writing defaults into PLX PCI9054 EEPROM!\n");
}
static void clearPci9054 (void)
{
/*
* Set EEPROM write-protect register to 0
*/
out_be32 ((void *)(pci9054_iobase + 0x0c),
in_be32 ((void *)(pci9054_iobase + 0x0c)) & 0xffff00ff);
/* Long Serial EEPROM Load Registers... */
PciEepromWriteLongVPD (0x00, 0xffffffff);
PciEepromWriteLongVPD (0x04, 0xffffffff); /* other input controller */
printf ("Finished clearing PLX PCI9054 EEPROM!\n");
}
/* ------------------------------------------------------------------------- */
int do_pci9054 (cmd_tbl_t * cmdtp, int flag, int argc,
char * const argv[])
{
if (strcmp (argv[1], "info") == 0) {
showPci9054 ();
return 0;
}
if (strcmp (argv[1], "update") == 0) {
updatePci9054 ();
return 0;
}
if (strcmp (argv[1], "clear") == 0) {
clearPci9054 ();
return 0;
}
return cmd_usage(cmdtp);
}
U_BOOT_CMD(
pci9054, 3, 1, do_pci9054,
"PLX PCI9054 EEPROM access",
"pci9054 info - print EEPROM values\n"
"pci9054 update - updates EEPROM with default values"
);
/* ------------------------------------------------------------------------- */
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