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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254 lines
6.4 KiB
254 lines
6.4 KiB
/*
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* (C) Copyright 2001
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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 <asm/processor.h>
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#include <command.h>
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#include <cmd_boot.h>
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#include <malloc.h>
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#include <pci.h>
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#include <405gp_pci.h>
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/* ------------------------------------------------------------------------- */
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#if 0
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#define FPGA_DEBUG
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#endif
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#define PCI_RECONFIG_MAGIC 0x07081967
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struct pci_config_regs {
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unsigned short command;
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unsigned char latency_timer;
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unsigned char int_line;
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unsigned long bar1;
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unsigned long bar2;
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unsigned long magic;
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};
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/* fpga configuration data - generated by bin2cc */
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const unsigned char fpgadata[] =
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{
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#include "fpgadata.c"
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};
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/*
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* include common fpga code (for esd boards)
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*/
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#include "../common/fpga.c"
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/* Prototypes */
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int gunzip(void *, int, unsigned char *, int *);
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int board_pre_init (void)
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{
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unsigned long cntrl0Reg;
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/*
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* IRQ 0-15 405GP internally generated; active high; level sensitive
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* IRQ 16 405GP internally generated; active low; level sensitive
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* IRQ 17-24 RESERVED
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* IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
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* IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
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* IRQ 27 (EXT IRQ 2) CAN2; active low; level sensitive
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* IRQ 28 (EXT IRQ 3) CAN3; active low; level sensitive
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* IRQ 29 (EXT IRQ 4) unused; active low; level sensitive
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* IRQ 30 (EXT IRQ 5) FPGA Timestamp; active low; level sensitive
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* IRQ 31 (EXT IRQ 6) PCI Reset; active low; level sensitive
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*/
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mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
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mtdcr(uicer, 0x00000000); /* disable all ints */
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mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
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mtdcr(uicpr, 0xFFFFFF80); /* set int polarities */
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mtdcr(uictr, 0x10000000); /* set int trigger levels */
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mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/
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mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
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/*
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* Setup GPIO pins (IRQ4/GPIO21 as GPIO)
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*/
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cntrl0Reg = mfdcr(cntrl0);
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mtdcr(cntrl0, cntrl0Reg | 0x00008000);
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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int misc_init_f (void)
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{
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return 0; /* dummy implementation */
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}
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int misc_init_r (void)
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{
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unsigned char *dst;
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ulong len = sizeof(fpgadata);
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int status;
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int index;
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int i;
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struct pci_config_regs *pci_regs;
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/*
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* On PCI-405 the environment is saved in eeprom!
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* FPGA can be gzip compressed (malloc) and booted this late.
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*/
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dst = malloc(CFG_FPGA_MAX_SIZE);
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if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, (int *)&len) != 0) {
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printf ("GUNZIP ERROR - must RESET board to recover\n");
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do_reset (NULL, 0, 0, NULL);
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}
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status = fpga_boot(dst, len);
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if (status != 0) {
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printf("\nFPGA: Booting failed ");
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switch (status) {
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case ERROR_FPGA_PRG_INIT_LOW:
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printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_INIT_HIGH:
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printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
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break;
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case ERROR_FPGA_PRG_DONE:
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printf("(Timeout: DONE not high after programming FPGA)\n ");
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break;
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}
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/* display infos on fpgaimage */
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index = 15;
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for (i=0; i<4; i++) {
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len = dst[index];
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printf("FPGA: %s\n", &(dst[index+1]));
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index += len+3;
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}
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putc ('\n');
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/* delayed reboot */
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for (i=20; i>0; i--) {
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printf("Rebooting in %2d seconds \r",i);
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for (index=0;index<1000;index++)
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udelay(1000);
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}
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putc ('\n');
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do_reset(NULL, 0, 0, NULL);
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}
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puts("FPGA: ");
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/* display infos on fpgaimage */
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index = 15;
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for (i=0; i<4; i++) {
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len = dst[index];
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printf("%s ", &(dst[index+1]));
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index += len+3;
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}
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putc ('\n');
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/*
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* Rewrite pci config regs (only after soft-reset with magic set)
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*/
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pci_regs = (struct pci_config_regs *)0x10;
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if (pci_regs->magic == PCI_RECONFIG_MAGIC) {
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puts("PCI: Found magic, rewriting config regs...\n");
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pci_write_config_word(PCIDEVID_405GP, PCI_COMMAND,
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pci_regs->command);
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pci_write_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER,
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pci_regs->latency_timer);
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pci_write_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE,
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pci_regs->int_line);
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pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1,
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pci_regs->bar1);
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pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2,
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pci_regs->bar2);
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}
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pci_regs->magic = 0; /* clear magic again */
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#if 0 /* test-only */
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pci_read_config_word(PCIDEVID_405GP, PCI_COMMAND, &(pci_regs->command));
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pci_read_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER, &(pci_regs->latency_timer));
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pci_read_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE, &(pci_regs->int_line));
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pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, &(pci_regs->bar1));
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pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, &(pci_regs->bar2));
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pci_regs->magic = PCI_RECONFIG_MAGIC; /* set magic */
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#endif
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free(dst);
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return (0);
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}
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/*
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* Check Board Identity:
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*/
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int checkboard (void)
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{
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unsigned char str[64];
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int i = getenv_r ("serial#", str, sizeof(str));
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puts ("Board: ");
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if (i == -1) {
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puts ("### No HW ID - assuming CPCI405");
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} else {
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puts (str);
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}
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putc ('\n');
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return 0;
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}
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/* ------------------------------------------------------------------------- */
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long int initdram (int board_type)
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{
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unsigned long val;
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mtdcr(memcfga, mem_mb0cf);
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val = mfdcr(memcfgd);
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#if 0
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printf("\nmb0cf=%x\n", val); /* test-only */
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printf("strap=%x\n", mfdcr(strap)); /* test-only */
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#endif
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return (4*1024*1024 << ((val & 0x000e0000) >> 17));
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}
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/* ------------------------------------------------------------------------- */
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int testdram (void)
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{
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/* TODO: XXX XXX XXX */
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printf ("test: 16 MB - ok\n");
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return (0);
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}
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/* ------------------------------------------------------------------------- */
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