diff options
Diffstat (limited to 'board/esd/cpci405/cpci405.c')
-rwxr-xr-x | board/esd/cpci405/cpci405.c | 799 |
1 files changed, 799 insertions, 0 deletions
diff --git a/board/esd/cpci405/cpci405.c b/board/esd/cpci405/cpci405.c new file mode 100755 index 0000000..2ab9673 --- /dev/null +++ b/board/esd/cpci405/cpci405.c @@ -0,0 +1,799 @@ +/* + * (C) Copyright 2001-2003 + * 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 <malloc.h> +#include <net.h> + +/* ------------------------------------------------------------------------- */ +extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); /*cmd_boot.c*/ +#if 0 +#define FPGA_DEBUG +#endif + +/* fpga configuration data - generated by bin2cc */ +const unsigned char fpgadata[] = +{ +#ifdef CONFIG_CPCI405_VER2 +# ifdef CONFIG_CPCI405AB +# include "fpgadata_cpci405ab.c" +# else +# include "fpgadata_cpci4052.c" +# endif +#else +# include "fpgadata_cpci405.c" +#endif +}; + +/* + * include common fpga code (for esd boards) + */ +#include "../common/fpga.c" + + +#include "../common/auto_update.h" + +#ifdef CONFIG_CPCI405AB +au_image_t au_image[] = { + {"cpci405ab/preinst.img", 0, -1, AU_SCRIPT}, + {"cpci405ab/pImage", 0xffc00000, 0x000c0000, AU_NOR}, + {"cpci405ab/pImage.initrd", 0xffcc0000, 0x00300000, AU_NOR}, + {"cpci405ab/u-boot.img", 0xfffc0000, 0x00040000, AU_FIRMWARE}, + {"cpci405ab/postinst.img", 0, 0, AU_SCRIPT}, +}; +#else +#ifdef CONFIG_CPCI405_VER2 +au_image_t au_image[] = { + {"cpci4052/preinst.img", 0, -1, AU_SCRIPT}, + {"cpci4052/pImage", 0xffc00000, 0x000c0000, AU_NOR}, + {"cpci4052/pImage.initrd", 0xffcc0000, 0x00300000, AU_NOR}, + {"cpci4052/u-boot.img", 0xfffc0000, 0x00040000, AU_FIRMWARE}, + {"cpci4052/postinst.img", 0, 0, AU_SCRIPT}, +}; +#else +au_image_t au_image[] = { + {"cpci405/preinst.img", 0, -1, AU_SCRIPT}, + {"cpci405/pImage", 0xffc00000, 0x000c0000, AU_NOR}, + {"cpci405/pImage.initrd", 0xffcc0000, 0x00310000, AU_NOR}, + {"cpci405/u-boot.img", 0xfffd0000, 0x00030000, AU_FIRMWARE}, + {"cpci405/postinst.img", 0, 0, AU_SCRIPT}, +}; +#endif +#endif + +int N_AU_IMAGES = (sizeof(au_image) / sizeof(au_image[0])); + + +/* Prototypes */ +int cpci405_version(void); +int gunzip(void *, int, unsigned char *, unsigned long *); +void lxt971_no_sleep(void); + + +int board_early_init_f (void) +{ +#ifndef CONFIG_CPCI405_VER2 + int index, len, i; + int status; +#endif + +#ifdef FPGA_DEBUG + DECLARE_GLOBAL_DATA_PTR; + + /* set up serial port with default baudrate */ + (void) get_clocks (); + gd->baudrate = CONFIG_BAUDRATE; + serial_init (); + console_init_f(); +#endif + + /* + * First pull fpga-prg pin low, to disable fpga logic (on version 2 board) + */ + out32(GPIO0_ODR, 0x00000000); /* no open drain pins */ + out32(GPIO0_TCR, CFG_FPGA_PRG); /* setup for output */ + out32(GPIO0_OR, CFG_FPGA_PRG); /* set output pins to high */ + out32(GPIO0_OR, 0); /* pull prg low */ + + /* + * Boot onboard FPGA + */ +#ifndef CONFIG_CPCI405_VER2 + if (cpci405_version() == 1) { + status = fpga_boot((unsigned char *)fpgadata, sizeof(fpgadata)); + if (status != 0) { + /* booting FPGA failed */ +#ifndef FPGA_DEBUG + DECLARE_GLOBAL_DATA_PTR; + + /* set up serial port with default baudrate */ + (void) get_clocks (); + gd->baudrate = CONFIG_BAUDRATE; + serial_init (); + console_init_f(); +#endif + 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 = fpgadata[index]; + printf("FPGA: %s\n", &(fpgadata[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); + } + } +#endif /* !CONFIG_CPCI405_VER2 */ + + /* + * 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 (+FPGA on CPCI4052) ; active low; level sensitive + * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive + * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive + * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive + * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive + * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive + */ + mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ + mtdcr(uicer, 0x00000000); /* disable all ints */ + mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/ + if (cpci405_version() == 3) { + mtdcr(uicpr, 0xFFFFFF99); /* set int polarities */ + } else { + mtdcr(uicpr, 0xFFFFFF81); /* 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 */ + + return 0; +} + + +/* ------------------------------------------------------------------------- */ + +int ctermm2(void) +{ +#ifdef CONFIG_CPCI405_VER2 + return 0; /* no, board is cpci405 */ +#else + if ((*(unsigned char *)0xf0000400 == 0x00) && + (*(unsigned char *)0xf0000401 == 0x01)) + return 0; /* no, board is cpci405 */ + else + return -1; /* yes, board is cterm-m2 */ +#endif +} + + +int cpci405_host(void) +{ + if (mfdcr(strap) & PSR_PCI_ARBIT_EN) + return -1; /* yes, board is cpci405 host */ + else + return 0; /* no, board is cpci405 adapter */ +} + + +int cpci405_version(void) +{ + unsigned long cntrl0Reg; + unsigned long value; + + /* + * Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO) + */ + cntrl0Reg = mfdcr(cntrl0); + mtdcr(cntrl0, cntrl0Reg | 0x03000000); + out32(GPIO0_ODR, in32(GPIO0_ODR) & ~0x00180000); + out32(GPIO0_TCR, in32(GPIO0_TCR) & ~0x00180000); + udelay(1000); /* wait some time before reading input */ + value = in32(GPIO0_IR) & 0x00180000; /* get config bits */ + + /* + * Restore GPIO settings + */ + mtdcr(cntrl0, cntrl0Reg); + + switch (value) { + case 0x00180000: + /* CS2==1 && CS3==1 -> version 1 */ + return 1; + case 0x00080000: + /* CS2==0 && CS3==1 -> version 2 */ + return 2; + case 0x00100000: + /* CS2==1 && CS3==0 -> version 3 */ + return 3; + case 0x00000000: + /* CS2==0 && CS3==0 -> version 4 */ + return 4; + default: + /* should not be reached! */ + return 2; + } +} + + +int misc_init_f (void) +{ + return 0; /* dummy implementation */ +} + + +int misc_init_r (void) +{ + DECLARE_GLOBAL_DATA_PTR; + unsigned long cntrl0Reg; + + /* adjust flash start and offset */ + gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; + gd->bd->bi_flashoffset = 0; + +#ifdef CONFIG_CPCI405_VER2 + { + unsigned char *dst; + ulong len = sizeof(fpgadata); + int status; + int index; + int i; + + /* + * On CPCI-405 version 2 the environment is saved in eeprom! + * FPGA can be gzip compressed (malloc) and booted this late. + */ + + if (cpci405_version() >= 2) { + /* + * Setup GPIO pins (CS6+CS7 as GPIO) + */ + cntrl0Reg = mfdcr(cntrl0); + mtdcr(cntrl0, cntrl0Reg | 0x00300000); + + dst = malloc(CFG_FPGA_MAX_SIZE); + if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &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); + } + + /* restore gpio/cs settings */ + mtdcr(cntrl0, cntrl0Reg); + + 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'); + + free(dst); + + /* + * Reset FPGA via FPGA_DATA pin + */ + SET_FPGA(FPGA_PRG | FPGA_CLK); + udelay(1000); /* wait 1ms */ + SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA); + udelay(1000); /* wait 1ms */ + + if (cpci405_version() == 3) { + volatile unsigned short *fpga_mode = (unsigned short *)CFG_FPGA_BASE_ADDR; + volatile unsigned char *leds = (unsigned char *)CFG_LED_ADDR; + + /* + * Enable outputs in fpga on version 3 board + */ + *fpga_mode |= CFG_FPGA_MODE_ENABLE_OUTPUT; + + /* + * Set outputs to 0 + */ + *leds = 0x00; + + /* + * Reset external DUART + */ + *fpga_mode |= CFG_FPGA_MODE_DUART_RESET; + udelay(100); + *fpga_mode &= ~(CFG_FPGA_MODE_DUART_RESET); + } + } + else { + puts("\n*** U-Boot Version does not match Board Version!\n"); + puts("*** CPCI-405 Version 1.x detected!\n"); + puts("*** Please use correct U-Boot version (CPCI405 instead of CPCI4052)!\n\n"); + } + } + +#else /* CONFIG_CPCI405_VER2 */ + +#if 0 /* test-only: code-plug now not relavant for ip-address any more */ + /* + * Generate last byte of ip-addr from code-plug @ 0xf0000400 + */ + if (ctermm2()) { + char str[32]; + unsigned char ipbyte = *(unsigned char *)0xf0000400; + + /* + * Only overwrite ip-addr with allowed values + */ + if ((ipbyte != 0x00) && (ipbyte != 0xff)) { + bd->bi_ip_addr = (bd->bi_ip_addr & 0xffffff00) | ipbyte; + sprintf(str, "%ld.%ld.%ld.%ld", + (bd->bi_ip_addr & 0xff000000) >> 24, + (bd->bi_ip_addr & 0x00ff0000) >> 16, + (bd->bi_ip_addr & 0x0000ff00) >> 8, + (bd->bi_ip_addr & 0x000000ff)); + setenv("ipaddr", str); + } + } +#endif + + if (cpci405_version() >= 2) { + puts("\n*** U-Boot Version does not match Board Version!\n"); + puts("*** CPCI-405 Board Version 2.x detected!\n"); + puts("*** Please use correct U-Boot version (CPCI4052 instead of CPCI405)!\n\n"); + } + +#endif /* CONFIG_CPCI405_VER2 */ + + /* + * Select cts (and not dsr) on uart1 + */ + cntrl0Reg = mfdcr(cntrl0); + mtdcr(cntrl0, cntrl0Reg | 0x00001000); + + return (0); +} + + +/* + * Check Board Identity: + */ + +int checkboard (void) +{ +#ifndef CONFIG_CPCI405_VER2 + int index; + int len; +#endif + char str[64]; + int i = getenv_r ("serial#", str, sizeof(str)); + unsigned short ver; + + puts ("Board: "); + + if (i == -1) { + puts ("### No HW ID - assuming CPCI405"); + } else { + puts(str); + } + + ver = cpci405_version(); + printf(" (Ver %d.x, ", ver); + +#if 0 /* test-only */ + if (ver >= 2) { + volatile u16 *fpga_status = (u16 *)CFG_FPGA_BASE_ADDR + 1; + + if (*fpga_status & CFG_FPGA_STATUS_FLASH) { + puts ("FLASH Bank B, "); + } else { + puts ("FLASH Bank A, "); + } + } +#endif + + if (ctermm2()) { + char str[4]; + + /* + * Read board-id and save in env-variable + */ + sprintf(str, "%d", *(unsigned char *)0xf0000400); + setenv("boardid", str); + printf("CTERM-M2 - Id=%s)", str); + } else { + if (cpci405_host()) { + puts ("PCI Host Version)"); + } else { + puts ("PCI Adapter Version)"); + } + } + +#ifndef CONFIG_CPCI405_VER2 + puts ("\nFPGA: "); + + /* display infos on fpgaimage */ + index = 15; + for (i=0; i<4; i++) { + len = fpgadata[index]; + printf("%s ", &(fpgadata[index+1])); + index += len+3; + } +#endif + + putc ('\n'); + + /* + * Disable sleep mode in LXT971 + */ + lxt971_no_sleep(); + + 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); +} + +/* ------------------------------------------------------------------------- */ + +#ifdef CONFIG_CPCI405_VER2 +#ifdef CONFIG_IDE_RESET + +void ide_set_reset(int on) +{ + volatile unsigned short *fpga_mode = (unsigned short *)CFG_FPGA_BASE_ADDR; + + /* + * Assert or deassert CompactFlash Reset Pin + */ + if (on) { /* assert RESET */ + *fpga_mode &= ~(CFG_FPGA_MODE_CF_RESET); + } else { /* release RESET */ + *fpga_mode |= CFG_FPGA_MODE_CF_RESET; + } +} + +#endif /* CONFIG_IDE_RESET */ +#endif /* CONFIG_CPCI405_VER2 */ + + +#ifdef CONFIG_CPCI405AB + +#define ONE_WIRE_CLEAR (*(volatile unsigned short *)(CFG_FPGA_BASE_ADDR + CFG_FPGA_MODE) \ + |= CFG_FPGA_MODE_1WIRE_DIR) +#define ONE_WIRE_SET (*(volatile unsigned short *)(CFG_FPGA_BASE_ADDR + CFG_FPGA_MODE) \ + &= ~CFG_FPGA_MODE_1WIRE_DIR) +#define ONE_WIRE_GET (*(volatile unsigned short *)(CFG_FPGA_BASE_ADDR + CFG_FPGA_STATUS) \ + & CFG_FPGA_MODE_1WIRE) + +/* + * Generate a 1-wire reset, return 1 if no presence detect was found, + * return 0 otherwise. + * (NOTE: Does not handle alarm presence from DS2404/DS1994) + */ +int OWTouchReset(void) +{ + int result; + + ONE_WIRE_CLEAR; + udelay(480); + ONE_WIRE_SET; + udelay(70); + + result = ONE_WIRE_GET; + + udelay(410); + return result; +} + + +/* + * Send 1 a 1-wire write bit. + * Provide 10us recovery time. + */ +void OWWriteBit(int bit) +{ + if (bit) { + /* + * write '1' bit + */ + ONE_WIRE_CLEAR; + udelay(6); + ONE_WIRE_SET; + udelay(64); + } else { + /* + * write '0' bit + */ + ONE_WIRE_CLEAR; + udelay(60); + ONE_WIRE_SET; + udelay(10); + } +} + + +/* + * Read a bit from the 1-wire bus and return it. + * Provide 10us recovery time. + */ +int OWReadBit(void) +{ + int result; + + ONE_WIRE_CLEAR; + udelay(6); + ONE_WIRE_SET; + udelay(9); + + result = ONE_WIRE_GET; + + udelay(55); + return result; +} + + +void OWWriteByte(int data) +{ + int loop; + + for (loop=0; loop<8; loop++) { + OWWriteBit(data & 0x01); + data >>= 1; + } +} + + +int OWReadByte(void) +{ + int loop, result = 0; + + for (loop=0; loop<8; loop++) { + result >>= 1; + if (OWReadBit()) { + result |= 0x80; + } + } + + return result; +} + + +int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + volatile unsigned short val; + int result; + int i; + unsigned char ow_id[6]; + char str[32]; + unsigned char ow_crc; + + /* + * Clear 1-wire bit (open drain with pull-up) + */ + val = *(volatile unsigned short *)0xf0400000; + val &= ~0x1000; /* clear 1-wire bit */ + *(volatile unsigned short *)0xf0400000 = val; + + result = OWTouchReset(); + if (result != 0) { + puts("No 1-wire device detected!\n"); + } + + OWWriteByte(0x33); /* send read rom command */ + OWReadByte(); /* skip family code ( == 0x01) */ + for (i=0; i<6; i++) { + ow_id[i] = OWReadByte(); + } + ow_crc = OWReadByte(); /* read crc */ + + sprintf(str, "%08X%04X", *(unsigned int *)&ow_id[0], *(unsigned short *)&ow_id[4]); + printf("Setting environment variable 'ow_id' to %s\n", str); + setenv("ow_id", str); + + return 0; +} +U_BOOT_CMD( + onewire, 1, 1, do_onewire, + "onewire - Read 1-write ID\n", + NULL + ); + + +#define CFG_I2C_EEPROM_ADDR_2 0x51 /* EEPROM CAT28WC32 */ +#define CFG_ENV_SIZE_2 0x800 /* 2048 bytes may be used for env vars*/ + +/* + * Write backplane ip-address... + */ +int do_get_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + DECLARE_GLOBAL_DATA_PTR; + + bd_t *bd = gd->bd; + char *buf; + ulong crc; + char str[32]; + char *ptr; + IPaddr_t ipaddr; + + buf = malloc(CFG_ENV_SIZE_2); + if (eeprom_read(CFG_I2C_EEPROM_ADDR_2, 0, (uchar *)buf, CFG_ENV_SIZE_2)) { + puts("\nError reading backplane EEPROM!\n"); + } else { + crc = crc32(0, (uchar *)(buf+4), CFG_ENV_SIZE_2-4); + if (crc != *(ulong *)buf) { + printf("ERROR: crc mismatch %08lx %08lx\n", crc, *(ulong *)buf); + return -1; + } + + /* + * Find bp_ip + */ + ptr = strstr(buf+4, "bp_ip="); + if (ptr == NULL) { + printf("ERROR: bp_ip not found!\n"); + return -1; + } + ptr += 6; + ipaddr = string_to_ip(ptr); + + /* + * Update whole ip-addr + */ + bd->bi_ip_addr = ipaddr; + sprintf(str, "%ld.%ld.%ld.%ld", + (bd->bi_ip_addr & 0xff000000) >> 24, + (bd->bi_ip_addr & 0x00ff0000) >> 16, + (bd->bi_ip_addr & 0x0000ff00) >> 8, + (bd->bi_ip_addr & 0x000000ff)); + setenv("ipaddr", str); + printf("Updated ip_addr from bp_eeprom to %s!\n", str); + } + + free(buf); + + return 0; +} +U_BOOT_CMD( + getbpip, 1, 1, do_get_bpip, + "getbpip - Update IP-Address with Backplane IP-Address\n", + NULL + ); + +/* + * Set and print backplane ip... + */ +int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + char *buf; + char str[32]; + ulong crc; + + if (argc < 2) { + puts("ERROR!\n"); + return -1; + } + + printf("Setting bp_ip to %s\n", argv[1]); + buf = malloc(CFG_ENV_SIZE_2); + memset(buf, 0, CFG_ENV_SIZE_2); + sprintf(str, "bp_ip=%s", argv[1]); + strcpy(buf+4, str); + crc = crc32(0, (uchar *)(buf+4), CFG_ENV_SIZE_2-4); + *(ulong *)buf = crc; + + if (eeprom_write(CFG_I2C_EEPROM_ADDR_2, 0, (uchar *)buf, CFG_ENV_SIZE_2)) { + puts("\nError writing backplane EEPROM!\n"); + } + + free(buf); + + return 0; +} +U_BOOT_CMD( + setbpip, 2, 1, do_set_bpip, + "setbpip - Write Backplane IP-Address\n", + NULL + ); + +#endif /* CONFIG_CPCI405AB */ |