board/esd/cpci405/cpci405.c - github/trini/u-boot - Gitiles

 /*
  * (C) Copyright 2001-2003
  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <command.h>
 #include <malloc.h>
 #include <net.h>
 #include <pci.h>

 DECLARE_GLOBAL_DATA_PTR;

 extern void __ft_board_setup(void *blob, bd_t *bd);

 #undef FPGA_DEBUG

 /* fpga configuration data - generated by bin2cc */
 const unsigned char fpgadata[] =
 {
 #if defined(CONFIG_CPCI405_VER2)
 # if defined(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"

 #if defined(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
 #if defined(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);
 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
 	/* 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)
 	 */
 	out_be32((void *)GPIO0_ODR, 0x00000000);	     /* no open drain pins	*/
 	out_be32((void *)GPIO0_TCR, CONFIG_SYS_FPGA_PRG); /* setup for output	*/
 	out_be32((void *)GPIO0_OR, CONFIG_SYS_FPGA_PRG); /* set output pins to high */
 	out_be32((void *)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
 			/* 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 sens.
 	 * 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(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
 	mtdcr(UIC0ER, 0x00000000);	/* disable all ints */
 	mtdcr(UIC0CR, 0x00000000);	/* set all to be non-critical*/
 #if defined(CONFIG_CPCI405_6U)
 	if (cpci405_version() == 3) {
 		mtdcr(UIC0PR, 0xFFFFFF99);	/* set int polarities */
 	} else {
 		mtdcr(UIC0PR, 0xFFFFFF81);	/* set int polarities */
 	}
 #else
 	mtdcr(UIC0PR, 0xFFFFFF81);	/* set int polarities */
 #endif
 	mtdcr(UIC0TR, 0x10000000);	/* set int trigger levels */
 	mtdcr(UIC0VCR, 0x00000001);	/* set vect base=0,
 					 * INT0 highest priority */
 	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */

 	return 0;
 }

 int ctermm2(void)
 {
 #if defined(CONFIG_CPCI405_VER2)
 	return 0;			/* no, board is cpci405 */
 #else
 	if ((in_8((void*)0xf0000400) == 0x00) &&
 	    (in_8((void*)0xf0000401) == 0x01))
 		return 0;		/* no, board is cpci405 */
 	else
 		return -1;		/* yes, board is cterm-m2 */
 #endif
 }

 int cpci405_host(void)
 {
 	if (mfdcr(CPC0_PSR) & 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 CPC0_CR0Reg;
 	unsigned long value;

 	/*
 	 * Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO)
 	 */
 	CPC0_CR0Reg = mfdcr(CPC0_CR0);
 	mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x03000000);
 	out_be32((void*)GPIO0_ODR, in_be32((void*)GPIO0_ODR) & ~0x00180000);
 	out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) & ~0x00180000);
 	udelay(1000); /* wait some time before reading input */
 	value = in_be32((void*)GPIO0_IR) & 0x00180000; /* get config bits */

 	/*
 	 * Restore GPIO settings
 	 */
 	mtdcr(CPC0_CR0, CPC0_CR0Reg);

 	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 or 6U board */
 		return 3;
 	case 0x00000000:
 		/* CS2==0 && CS3==0 -> version 4 */
 		return 4;
 	default:
 		/* should not be reached! */
 		return 2;
 	}
 }

 int misc_init_r (void)
 {
 	unsigned long CPC0_CR0Reg;

 	/* adjust flash start and offset */
 	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
 	gd->bd->bi_flashoffset = 0;

 #if defined(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)
 		 */
 		CPC0_CR0Reg = mfdcr(CPC0_CR0);
 		mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00300000);

 		dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
 		if (gunzip(dst, CONFIG_SYS_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(CPC0_CR0, CPC0_CR0Reg);

 		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 defined(CONFIG_CPCI405_6U)
 #error HIER GETH ES WEITER MIT IO ACCESSORS
 		if (cpci405_version() == 3) {
 			/*
 			 * Enable outputs in fpga on version 3 board
 			 */
 			out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
 				 in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
 				 CONFIG_SYS_FPGA_MODE_ENABLE_OUTPUT);

 			/*
 			 * Set outputs to 0
 			 */
 			out_8((void*)CONFIG_SYS_LED_ADDR, 0x00);

 			/*
 			 * Reset external DUART
 			 */
 			out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
 				 in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
 				 CONFIG_SYS_FPGA_MODE_DUART_RESET);
 			udelay(100);
 			out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
 				 in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
 				 ~CONFIG_SYS_FPGA_MODE_DUART_RESET);
 		}
 #endif
 	}
 	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 (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
 	 */
 	CPC0_CR0Reg = mfdcr(CPC0_CR0);
 	mtdcr(CPC0_CR0, CPC0_CR0Reg | 0x00001000);

 	return 0;
 }

 /*
  * Check Board Identity:
  */

 int checkboard(void)
 {
 #ifndef CONFIG_CPCI405_VER2
 	int index;
 	int len;
 #endif
 	char str[64];
 	int i = getenv_f("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 (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');
 	return 0;
 }

 void reset_phy(void)
 {
 #if defined(CONFIG_LXT971_NO_SLEEP)

 	/*
 	 * Disable sleep mode in LXT971
 	 */
 	lxt971_no_sleep();
 #endif
 }

 #if defined(CONFIG_CPCI405_VER2) && defined (CONFIG_IDE_RESET)
 void ide_set_reset(int on)
 {
 	/*
 	 * Assert or deassert CompactFlash Reset Pin
 	 */
 	if (on) {	/* assert RESET */
 		out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
 			 in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
 			 ~CONFIG_SYS_FPGA_MODE_CF_RESET);
 	} else {	/* release RESET */
 		out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
 			 in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) |
 			 CONFIG_SYS_FPGA_MODE_CF_RESET);
 	}
 }

 #endif /* CONFIG_IDE_RESET && CONFIG_CPCI405_VER2 */

 #if defined(CONFIG_PCI)
 void cpci405_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
 {
 	unsigned char int_line = 0xff;

 	/*
 	 * Write pci interrupt line register (cpci405 specific)
 	 */
 	switch (PCI_DEV(dev) & 0x03) {
 	case 0:
 		int_line = 27 + 2;
 		break;
 	case 1:
 		int_line = 27 + 3;
 		break;
 	case 2:
 		int_line = 27 + 0;
 		break;
 	case 3:
 		int_line = 27 + 1;
 		break;
 	}

 	pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
 }

 int pci_pre_init(struct pci_controller *hose)
 {
 	hose->fixup_irq = cpci405_pci_fixup_irq;
 	return 1;
 }
 #endif /* defined(CONFIG_PCI) */

 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 int ft_board_setup(void *blob, bd_t *bd)
 {
 	int rc;

 	__ft_board_setup(blob, bd);

 	/*
 	 * Disable PCI in adapter mode.
 	 */
 	if (!cpci405_host()) {
 		rc = fdt_find_and_setprop(blob, "/plb/pci@ec000000", "status",
 					  "disabled", sizeof("disabled"), 1);
 		if (rc) {
 			printf("Unable to update property status in PCI node, "
 			       "err=%s\n",
 			       fdt_strerror(rc));
 		}
 	}

 	return 0;
 }
 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */

 #if defined(CONFIG_CPCI405AB)
 #define ONE_WIRE_CLEAR	 out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +	\
 					  CONFIG_SYS_FPGA_MODE),	\
 				  in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
 						  CONFIG_SYS_FPGA_MODE)) | \
 					  CONFIG_SYS_FPGA_MODE_1WIRE_DIR)

 #define ONE_WIRE_SET	 out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +	\
 					  CONFIG_SYS_FPGA_MODE),	\
 				  in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
 						  CONFIG_SYS_FPGA_MODE)) & \
 					  ~CONFIG_SYS_FPGA_MODE_1WIRE_DIR)

 #define ONE_WIRE_GET	 (in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
 					  CONFIG_SYS_FPGA_STATUS)) &  \
 			  CONFIG_SYS_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 * const argv[])
 {
 	unsigned short val;
 	int result;
 	int i;
 	unsigned char ow_id[6];
 	char str[32];

 	/*
 	 * Clear 1-wire bit (open drain with pull-up)
 	 */
 	val = in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +
 			      CONFIG_SYS_FPGA_MODE));
 	val &= ~CONFIG_SYS_FPGA_MODE_1WIRE; /* clear 1-wire bit */
 	out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +
 			 CONFIG_SYS_FPGA_MODE), 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();
 	OWReadByte(); /* read crc */

 	sprintf(str, "%02X%02X%02X%02X%02X%02X",
 		ow_id[0], ow_id[1], ow_id[2], ow_id[3], ow_id[4], ow_id[5]);
 	printf("Setting environment variable 'ow_id' to %s\n", str);
 	setenv("ow_id", str);

 	return 0;
 }
 U_BOOT_CMD(
 	onewire,	1,	1,	do_onewire,
 	"Read 1-write ID",
 	""
 );

 #define CONFIG_SYS_I2C_EEPROM_ADDR_2 0x51 /* EEPROM CAT24WC32 */
 #define CONFIG_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 * const argv[])
 {
 	char *buf;
 	ulong crc;
 	char str[32];
 	char *ptr;
 	IPaddr_t ipaddr;

 	buf = malloc(CONFIG_ENV_SIZE_2);
 	if (eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR_2, 0,
 			(uchar *)buf, CONFIG_ENV_SIZE_2))
 		puts("\nError reading backplane EEPROM!\n");
 	else {
 		crc = crc32(0, (uchar *)(buf+4), CONFIG_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
 		 */
 		sprintf(str, "%pI4", &ipaddr);
 		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,
 	"Update IP-Address with Backplane IP-Address",
 	""
 );

 /*
  * Set and print backplane ip...
  */
 int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char * const 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(CONFIG_ENV_SIZE_2);
 	memset(buf, 0, CONFIG_ENV_SIZE_2);
 	sprintf(str, "bp_ip=%s", argv[1]);
 	strcpy(buf+4, str);
 	crc = crc32(0, (uchar *)(buf+4), CONFIG_ENV_SIZE_2 - 4);
 	*(ulong *)buf = crc;

 	if (eeprom_write(CONFIG_SYS_I2C_EEPROM_ADDR_2,
 			 0, (uchar *)buf, CONFIG_ENV_SIZE_2))
 		puts("\nError writing backplane EEPROM!\n");

 	free(buf);

 	return 0;
 }
 U_BOOT_CMD(
 	setbpip,	2,	1,	do_set_bpip,
 	"Write Backplane IP-Address",
 	""
 );

 #endif /* CONFIG_CPCI405AB */
	/*
	* (C) Copyright 2001-2003
	* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/
	#include <common.h>
	#include <libfdt.h>
	#include <fdt_support.h>
	#include <asm/processor.h>
	#include <asm/io.h>
	#include <command.h>
	#include <malloc.h>
	#include <net.h>
	#include <pci.h>

	DECLARE_GLOBAL_DATA_PTR;

	extern void __ft_board_setup(void blob, bd_t bd);

	#undef FPGA_DEBUG

	/* fpga configuration data - generated by bin2cc */
	const unsigned char fpgadata[] =
	{
	#if defined(CONFIG_CPCI405_VER2)
	# if defined(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"

	#if defined(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
	#if defined(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);
	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
	/* 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)
	*/
	out_be32((void )GPIO0_ODR, 0x00000000); / no open drain pins */
	out_be32((void )GPIO0_TCR, CONFIG_SYS_FPGA_PRG); / setup for output */
	out_be32((void )GPIO0_OR, CONFIG_SYS_FPGA_PRG); / set output pins to high */
	out_be32((void )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
	/* 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 sens.
	* 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(UIC0SR, 0xFFFFFFFF); /* clear all ints */
	mtdcr(UIC0ER, 0x00000000); /* disable all ints */
	mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
	#if defined(CONFIG_CPCI405_6U)
	if (cpci405_version() == 3) {
	mtdcr(UIC0PR, 0xFFFFFF99); /* set int polarities */
	} else {
	mtdcr(UIC0PR, 0xFFFFFF81); /* set int polarities */
	}
	#else
	mtdcr(UIC0PR, 0xFFFFFF81); /* set int polarities */
	#endif
	mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
	mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,
	* INT0 highest priority */
	mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */

	return 0;
	}

	int ctermm2(void)
	{
	#if defined(CONFIG_CPCI405_VER2)
	return 0; /* no, board is cpci405 */
	#else
	if ((in_8((void*)0xf0000400) == 0x00) &&
	(in_8((void*)0xf0000401) == 0x01))
	return 0; /* no, board is cpci405 */
	else
	return -1; /* yes, board is cterm-m2 */
	#endif
	}

	int cpci405_host(void)
	{
	if (mfdcr(CPC0_PSR) & 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 CPC0_CR0Reg;
	unsigned long value;

	/*
	* Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO)
	*/
	CPC0_CR0Reg = mfdcr(CPC0_CR0);
	mtdcr(CPC0_CR0, CPC0_CR0Reg \| 0x03000000);
	out_be32((void)GPIO0_ODR, in_be32((void)GPIO0_ODR) & ~0x00180000);
	out_be32((void)GPIO0_TCR, in_be32((void)GPIO0_TCR) & ~0x00180000);
	udelay(1000); /* wait some time before reading input */
	value = in_be32((void)GPIO0_IR) & 0x00180000; / get config bits */

	/*
	* Restore GPIO settings
	*/
	mtdcr(CPC0_CR0, CPC0_CR0Reg);

	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 or 6U board */
	return 3;
	case 0x00000000:
	/* CS2==0 && CS3==0 -> version 4 */
	return 4;
	default:
	/* should not be reached! */
	return 2;
	}
	}

	int misc_init_r (void)
	{
	unsigned long CPC0_CR0Reg;

	/* adjust flash start and offset */
	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
	gd->bd->bi_flashoffset = 0;

	#if defined(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)
	*/
	CPC0_CR0Reg = mfdcr(CPC0_CR0);
	mtdcr(CPC0_CR0, CPC0_CR0Reg \| 0x00300000);

	dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
	if (gunzip(dst, CONFIG_SYS_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(CPC0_CR0, CPC0_CR0Reg);

	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 defined(CONFIG_CPCI405_6U)
	#error HIER GETH ES WEITER MIT IO ACCESSORS
	if (cpci405_version() == 3) {
	/*
	* Enable outputs in fpga on version 3 board
	*/
	out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
	in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) \|
	CONFIG_SYS_FPGA_MODE_ENABLE_OUTPUT);

	/*
	* Set outputs to 0
	*/
	out_8((void*)CONFIG_SYS_LED_ADDR, 0x00);

	/*
	* Reset external DUART
	*/
	out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
	in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) \|
	CONFIG_SYS_FPGA_MODE_DUART_RESET);
	udelay(100);
	out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
	in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
	~CONFIG_SYS_FPGA_MODE_DUART_RESET);
	}
	#endif
	}
	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 (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
	*/
	CPC0_CR0Reg = mfdcr(CPC0_CR0);
	mtdcr(CPC0_CR0, CPC0_CR0Reg \| 0x00001000);

	return 0;
	}

	/*
	* Check Board Identity:
	*/

	int checkboard(void)
	{
	#ifndef CONFIG_CPCI405_VER2
	int index;
	int len;
	#endif
	char str[64];
	int i = getenv_f("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 (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');
	return 0;
	}

	void reset_phy(void)
	{
	#if defined(CONFIG_LXT971_NO_SLEEP)

	/*
	* Disable sleep mode in LXT971
	*/
	lxt971_no_sleep();
	#endif
	}

	#if defined(CONFIG_CPCI405_VER2) && defined (CONFIG_IDE_RESET)
	void ide_set_reset(int on)
	{
	/*
	* Assert or deassert CompactFlash Reset Pin
	*/
	if (on) { /* assert RESET */
	out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
	in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) &
	~CONFIG_SYS_FPGA_MODE_CF_RESET);
	} else { /* release RESET */
	out_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR,
	in_be16((void*)CONFIG_SYS_FPGA_BASE_ADDR) \|
	CONFIG_SYS_FPGA_MODE_CF_RESET);
	}
	}

	#endif /* CONFIG_IDE_RESET && CONFIG_CPCI405_VER2 */

	#if defined(CONFIG_PCI)
	void cpci405_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
	{
	unsigned char int_line = 0xff;

	/*
	* Write pci interrupt line register (cpci405 specific)
	*/
	switch (PCI_DEV(dev) & 0x03) {
	case 0:
	int_line = 27 + 2;
	break;
	case 1:
	int_line = 27 + 3;
	break;
	case 2:
	int_line = 27 + 0;
	break;
	case 3:
	int_line = 27 + 1;
	break;
	}

	pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line);
	}

	int pci_pre_init(struct pci_controller *hose)
	{
	hose->fixup_irq = cpci405_pci_fixup_irq;
	return 1;
	}
	#endif /* defined(CONFIG_PCI) */

	#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
	int ft_board_setup(void blob, bd_t bd)
	{
	int rc;

	__ft_board_setup(blob, bd);

	/*
	* Disable PCI in adapter mode.
	*/
	if (!cpci405_host()) {
	rc = fdt_find_and_setprop(blob, "/plb/pci@ec000000", "status",
	"disabled", sizeof("disabled"), 1);
	if (rc) {
	printf("Unable to update property status in PCI node, "
	"err=%s\n",
	fdt_strerror(rc));
	}
	}

	return 0;
	}
	#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */

	#if defined(CONFIG_CPCI405AB)
	#define ONE_WIRE_CLEAR out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
	CONFIG_SYS_FPGA_MODE), \
	in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
	CONFIG_SYS_FPGA_MODE)) \| \
	CONFIG_SYS_FPGA_MODE_1WIRE_DIR)

	#define ONE_WIRE_SET out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
	CONFIG_SYS_FPGA_MODE), \
	in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
	CONFIG_SYS_FPGA_MODE)) & \
	~CONFIG_SYS_FPGA_MODE_1WIRE_DIR)

	#define ONE_WIRE_GET (in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR + \
	CONFIG_SYS_FPGA_STATUS)) & \
	CONFIG_SYS_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 const argv[])
	{
	unsigned short val;
	int result;
	int i;
	unsigned char ow_id[6];
	char str[32];

	/*
	* Clear 1-wire bit (open drain with pull-up)
	*/
	val = in_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +
	CONFIG_SYS_FPGA_MODE));
	val &= ~CONFIG_SYS_FPGA_MODE_1WIRE; /* clear 1-wire bit */
	out_be16((void*)(CONFIG_SYS_FPGA_BASE_ADDR +
	CONFIG_SYS_FPGA_MODE), 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();
	OWReadByte(); /* read crc */

	sprintf(str, "%02X%02X%02X%02X%02X%02X",
	ow_id[0], ow_id[1], ow_id[2], ow_id[3], ow_id[4], ow_id[5]);
	printf("Setting environment variable 'ow_id' to %s\n", str);
	setenv("ow_id", str);

	return 0;
	}
	U_BOOT_CMD(
	onewire, 1, 1, do_onewire,
	"Read 1-write ID",
	""
	);

	#define CONFIG_SYS_I2C_EEPROM_ADDR_2 0x51 /* EEPROM CAT24WC32 */
	#define CONFIG_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 const argv[])
	{
	char *buf;
	ulong crc;
	char str[32];
	char *ptr;
	IPaddr_t ipaddr;

	buf = malloc(CONFIG_ENV_SIZE_2);
	if (eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR_2, 0,
	(uchar *)buf, CONFIG_ENV_SIZE_2))
	puts("\nError reading backplane EEPROM!\n");
	else {
	crc = crc32(0, (uchar *)(buf+4), CONFIG_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
	*/
	sprintf(str, "%pI4", &ipaddr);
	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,
	"Update IP-Address with Backplane IP-Address",
	""
	);

	/*
	* Set and print backplane ip...
	*/
	int do_set_bpip(cmd_tbl_t cmdtp, int flag, int argc, char const 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(CONFIG_ENV_SIZE_2);
	memset(buf, 0, CONFIG_ENV_SIZE_2);
	sprintf(str, "bp_ip=%s", argv[1]);
	strcpy(buf+4, str);
	crc = crc32(0, (uchar *)(buf+4), CONFIG_ENV_SIZE_2 - 4);
	(ulong )buf = crc;

	if (eeprom_write(CONFIG_SYS_I2C_EEPROM_ADDR_2,
	0, (uchar *)buf, CONFIG_ENV_SIZE_2))
	puts("\nError writing backplane EEPROM!\n");

	free(buf);

	return 0;
	}
	U_BOOT_CMD(
	setbpip, 2, 1, do_set_bpip,
	"Write Backplane IP-Address",
	""
	);

	#endif /* CONFIG_CPCI405AB */