diff options
Diffstat (limited to 'board/esd/pci405')
| -rw-r--r-- | board/esd/pci405/pci405.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c new file mode 100644 index 0000000..ed86c02 --- /dev/null +++ b/board/esd/pci405/pci405.c @@ -0,0 +1,254 @@ +/* + * (C) Copyright 2001 + * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com + * + * 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 + */ + +#include <common.h> +#include <asm/processor.h> +#include <command.h> +#include <cmd_boot.h> +#include <malloc.h> +#include <pci.h> +#include <405gp_pci.h> + +/* ------------------------------------------------------------------------- */ + +#if 0 +#define FPGA_DEBUG +#endif + +#define PCI_RECONFIG_MAGIC 0x07081967 + + +struct pci_config_regs { + unsigned short command; + unsigned char latency_timer; + unsigned char int_line; + unsigned long bar1; + unsigned long bar2; + unsigned long magic; +}; + + +/* fpga configuration data - generated by bin2cc */ +const unsigned char fpgadata[] = +{ +#include "fpgadata.c" +}; + +/* + * include common fpga code (for esd boards) + */ +#include "../common/fpga.c" + + +/* Prototypes */ +int gunzip(void *, int, unsigned char *, int *); + + +int board_pre_init (void) +{ + unsigned long cntrl0Reg; + + /* + * IRQ 0-15 405GP internally generated; active high; level sensitive + * IRQ 16 405GP internally generated; active low; level sensitive + * IRQ 17-24 RESERVED + * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive + * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive + * IRQ 27 (EXT IRQ 2) CAN2; active low; level sensitive + * IRQ 28 (EXT IRQ 3) CAN3; active low; level sensitive + * IRQ 29 (EXT IRQ 4) unused; active low; level sensitive + * IRQ 30 (EXT IRQ 5) FPGA Timestamp; active low; level sensitive + * IRQ 31 (EXT IRQ 6) PCI Reset; active low; level sensitive + */ + mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ + mtdcr(uicer, 0x00000000); /* disable all ints */ + mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/ + mtdcr(uicpr, 0xFFFFFF80); /* set int polarities */ + mtdcr(uictr, 0x10000000); /* set int trigger levels */ + mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/ + mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ + + /* + * Setup GPIO pins (IRQ4/GPIO21 as GPIO) + */ + cntrl0Reg = mfdcr(cntrl0); + mtdcr(cntrl0, cntrl0Reg | 0x00008000); + + return 0; +} + + +/* ------------------------------------------------------------------------- */ + +int misc_init_f (void) +{ + return 0; /* dummy implementation */ +} + + +int misc_init_r (void) +{ + unsigned char *dst; + ulong len = sizeof(fpgadata); + int status; + int index; + int i; + struct pci_config_regs *pci_regs; + + /* + * On PCI-405 the environment is saved in eeprom! + * FPGA can be gzip compressed (malloc) and booted this late. + */ + + dst = malloc(CFG_FPGA_MAX_SIZE); + if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, (int *)&len) != 0) { + printf ("GUNZIP ERROR - must RESET board to recover\n"); + do_reset (NULL, 0, 0, NULL); + } + + status = fpga_boot(dst, len); + if (status != 0) { + printf("\nFPGA: Booting failed "); + switch (status) { + case ERROR_FPGA_PRG_INIT_LOW: + printf("(Timeout: INIT not low after asserting PROGRAM*)\n "); + break; + case ERROR_FPGA_PRG_INIT_HIGH: + printf("(Timeout: INIT not high after deasserting PROGRAM*)\n "); + break; + case ERROR_FPGA_PRG_DONE: + printf("(Timeout: DONE not high after programming FPGA)\n "); + break; + } + + /* display infos on fpgaimage */ + index = 15; + for (i=0; i<4; i++) { + len = dst[index]; + printf("FPGA: %s\n", &(dst[index+1])); + index += len+3; + } + putc ('\n'); + /* delayed reboot */ + for (i=20; i>0; i--) { + printf("Rebooting in %2d seconds \r",i); + for (index=0;index<1000;index++) + udelay(1000); + } + putc ('\n'); + do_reset(NULL, 0, 0, NULL); + } + + puts("FPGA: "); + + /* display infos on fpgaimage */ + index = 15; + for (i=0; i<4; i++) { + len = dst[index]; + printf("%s ", &(dst[index+1])); + index += len+3; + } + putc ('\n'); + + /* + * Rewrite pci config regs (only after soft-reset with magic set) + */ + pci_regs = (struct pci_config_regs *)0x10; + if (pci_regs->magic == PCI_RECONFIG_MAGIC) { + puts("PCI: Found magic, rewriting config regs...\n"); + pci_write_config_word(PCIDEVID_405GP, PCI_COMMAND, + pci_regs->command); + pci_write_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER, + pci_regs->latency_timer); + pci_write_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE, + pci_regs->int_line); + pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, + pci_regs->bar1); + pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, + pci_regs->bar2); + } + pci_regs->magic = 0; /* clear magic again */ + +#if 0 /* test-only */ + pci_read_config_word(PCIDEVID_405GP, PCI_COMMAND, &(pci_regs->command)); + pci_read_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER, &(pci_regs->latency_timer)); + pci_read_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE, &(pci_regs->int_line)); + pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, &(pci_regs->bar1)); + pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, &(pci_regs->bar2)); + pci_regs->magic = PCI_RECONFIG_MAGIC; /* set magic */ +#endif + + free(dst); + return (0); +} + + +/* + * Check Board Identity: + */ + +int checkboard (void) +{ + unsigned char str[64]; + int i = getenv_r ("serial#", str, sizeof(str)); + + puts ("Board: "); + + if (i == -1) { + puts ("### No HW ID - assuming CPCI405"); + } else { + puts (str); + } + putc ('\n'); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +long int initdram (int board_type) +{ + unsigned long val; + + mtdcr(memcfga, mem_mb0cf); + val = mfdcr(memcfgd); + +#if 0 + printf("\nmb0cf=%x\n", val); /* test-only */ + printf("strap=%x\n", mfdcr(strap)); /* test-only */ +#endif + + return (4*1024*1024 << ((val & 0x000e0000) >> 17)); +} + +/* ------------------------------------------------------------------------- */ + +int testdram (void) +{ + /* TODO: XXX XXX XXX */ + printf ("test: 16 MB - ok\n"); + + return (0); +} + +/* ------------------------------------------------------------------------- */ |