mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-19 08:28:51 +09:00
231 lines
4.6 KiB
C
231 lines
4.6 KiB
C
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/*
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* (C) Copyright 2002
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* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <net.h>
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#include <asm/io.h>
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#include <pci.h>
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#include <405gp_pci.h>
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#include <cmd_bsp.h>
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#include "pci405.h"
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#if (CONFIG_COMMANDS & CFG_CMD_BSP)
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extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
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#if 0 /* test-only */
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#include "../common/fpga.c"
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void error_print(void)
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{
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int i;
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volatile unsigned char *ptr;
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volatile unsigned long *ptr2;
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printf("\n 2nd SJA1000:\n");
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ptr = 0xf0000100;
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for (i=0; i<0x20; i++) {
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printf("%02x ", *ptr++);
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}
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ptr2 = 0xf0400008;
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printf("\nTimestamp = %x\n", *ptr2);
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udelay(1000);
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printf("Timestamp = %x\n", *ptr2);
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udelay(1000);
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printf("Timestamp = %x\n", *ptr2);
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#if 0 /* test-only */
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/*
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* Reset FPGA via FPGA_DATA pin
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*/
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printf("Resetting FPGA...\n");
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SET_FPGA(FPGA_PRG | FPGA_CLK);
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udelay(1000); /* wait 1ms */
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SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
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udelay(1000); /* wait 1ms */
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do_loadpci(NULL, 0,0, NULL);
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#endif
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}
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void read_loop(void)
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{
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int i;
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volatile unsigned char *ptr;
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volatile unsigned char val;
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volatile unsigned long *ptr2;
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printf("\nread loop on 1st sja1000...");
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while (1) {
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ptr = 0xf0000000;
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/* printf("\n1st SJA1000:\n");*/
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for (i=0; i<0x20; i++) {
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i = i;
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val = *ptr++;
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/* printf("%02x ", val);*/
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}
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/* Abort if ctrl-c was pressed */
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if (ctrlc()) {
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puts("\nAbort\n");
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return 0;
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}
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}
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}
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#endif
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/*
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* Command loadpci: wait for signal from host and boot image.
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*/
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int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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unsigned int *ptr = 0;
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int count = 0;
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int count2 = 0;
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int status;
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int i;
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char addr[16];
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char str[] = "\\|/-";
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char *local_args[2];
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#if 0 /* test-only */
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puts("\nStarting sja1000 test...");
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{
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int count;
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volatile unsigned char *ptr;
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volatile unsigned char val;
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volatile unsigned char val2;
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#if 1 /* write test */
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ptr = 0xf0000014;
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for (i=1; i<11; i++)
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*ptr++ = i;
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#endif
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count = 0;
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while (1) {
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count++;
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#if 0 /* write test */
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ptr = 0xf0000014;
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for (i=1; i<11; i++)
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*ptr++ = i;
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#endif
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#if 1 /* read test */
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ptr = 0xf0000014;
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for (i=1; i<11; i++) {
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val = *ptr++;
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#if 1
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if (val != i) {
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ptr = 0xf0000100;
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val = *ptr; /* trigger las */
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ptr = 0xf0000014;
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val2 = *ptr;
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printf("\nERROR: count=%d: soll=%x ist=%x -> staring read loop on 1st sja1000...\n", count, i, val);
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printf("soll=%x ist=%x -> staring read loop on 1st sja1000...\n", 1, val2);
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return 0; /* test-only */
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udelay(1000);
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error_print();
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read_loop();
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return 0;
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}
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#endif
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}
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#endif
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/* Abort if ctrl-c was pressed */
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if (ctrlc()) {
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puts("\nAbort\n");
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return 0;
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}
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if (!(count % 100000)) {
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printf(".");
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}
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}
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}
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#endif
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/*
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* Mark sync address
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*/
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ptr = 0;
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*ptr = 0xffffffff;
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puts("\nWaiting for image from pci host -");
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/*
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* Wait for host to write the start address
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*/
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while (*ptr == 0xffffffff) {
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count++;
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if (!(count % 100)) {
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count2++;
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putc(0x08); /* backspace */
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putc(str[count2 % 4]);
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}
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/* Abort if ctrl-c was pressed */
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if (ctrlc()) {
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puts("\nAbort\n");
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return 0;
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}
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udelay(1000);
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}
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if (*ptr == PCI_RECONFIG_MAGIC) {
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/*
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* Save own pci configuration in PRAM
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*/
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memset((char *)PCI_REGS_ADDR, 0, PCI_REGS_LEN);
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ptr = (unsigned int *)PCI_REGS_ADDR + 1;
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for (i=0; i<0x40; i+=4) {
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pci_read_config_dword(PCIDEVID_405GP, i, ptr++);
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}
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ptr = (unsigned int *)PCI_REGS_ADDR;
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*ptr = crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4);
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printf("\nStoring PCI Configuration Regs...\n");
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} else {
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sprintf(addr, "%08x", *ptr);
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/*
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* Boot image
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*/
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printf("\nBooting image at addr 0x%s ...\n", addr);
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setenv("loadaddr", addr);
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local_args[0] = argv[0];
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local_args[1] = NULL;
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status = do_bootm (cmdtp, 0, 1, local_args);
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}
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return 0;
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}
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#endif
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