Add qemu 2.4.0
[kvmfornfv.git] / qemu / roms / u-boot / board / esd / cpci405 / cpci405.c
diff --git a/qemu/roms/u-boot/board/esd/cpci405/cpci405.c b/qemu/roms/u-boot/board/esd/cpci405/cpci405.c
new file mode 100644 (file)
index 0000000..63cd862
--- /dev/null
@@ -0,0 +1,767 @@
+/*
+ * (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)
+void 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));
+               }
+       }
+}
+#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 */