Once the U-Boot console is available, the binary files to be stored onto the NAND flash can be downloaded via TFTP. The size of the partitions illustrated in the previous image determine the offsets to be used with the <code>nand erase/write</code> commands. The following box shows the full procedure:

The first file to be stored is <code>uImage</code>:<preclass="board-terminal">

Bora> nand erase 0 3000000 NAND erase: device 0 offset 0x0, size 0x3000000Erasing at 0x2fe0000 -- 100% complete.OKBora> nand write ${loadaddr} 0 <INTERRUPT>Bora> print ${filesize}## Error: "8fc790" not definedBora> printDBXx_test_result=test_passedaddcons=setenv bootargs ${bootargs} console=${console},115200n8 debug earlyprintkaddip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gateway}:${netmask}:${hostname}:${ethdev}addmisc=setenv bootargs ${bootargs} cma=16M ${mtdparts}baudrate=115200bootaddr=0x101100bootcmd=run net_nfsbootdelay=3bootfile=bora/linux/belk-4.0.0_uImagebootscript=echo Running bootscript from ${recoverydev} ...; source ${loadaddr}cb_configid#=ffffffffcb_uniqueid#=00000000:00000000configid_fixupfdt=if configid checkfdt ${fdtaddr} som_configid ${som_configid#}; then configid fdt_uniqueid ${fdtaddr}; ficonsole=ttyPS0ethact=ethernet@e000b000ethaddr=00:50:C2:1E:AF:B3ethdev=eth0fdt_base=0x00780000fdt_high=0x1F000000fdtaddr=2000000fdtcontroladdr=3ffa0a90fdtfile=bora/linux/belk-4.0.0_bora.dtbfileaddr=2080000filesize=8fc790fpga_base=0x00180000fpgafile=bora/bora.binfsbl_base=0x40000gateway=192.168.0.254header_base=0hostname=boraipaddr=192.168.0.81jtag_vx=run vxargs; bootvx 0x200000kernel_base=0x00800000load=tftpboot ${loadaddr} bora/u-boot.binloadaddr=0x02080000loadbootscript=fatload ${recoverydev} 0:1 ${loadaddr} ${script};loadfdt=tftpboot ${fdtaddr} ${fdtfile}loadfpga=tftpboot ${loadaddr} ${fpgafile}loadfsbl=tftpboot ${loadaddr} bora/bora_fsbl.binloadhdr=tftpboot ${loadaddr} bora/boot_headerloadk=tftpboot ${loadaddr} ${bootfile}loadvx=tftpboot ${loadaddr} ${vxfile}mmcargs=setenv bootargs root=/dev/mmcblk0p${mmcpart} rootwait rwmmcdev=0mmcpart=2mmcrecovery=mmc dev 0; mmc rescan; setenv recoverydev mmc; run recoverymodeboot=qspibootmtdids=nand0=pl353-nandmtdparts=mtdparts=pl35x-nand:48M(data0),15M(data1),1M(data2),-(data3)mtdparts1=mtdparts=pl353-nand:512K(spl),512K(uboot),256K(env1),256K(env2),4M(fpga),256K(fdt),4M(kernel),-(nand-ubi)nand_erasesize=20000nand_loadk=nand read ${loadaddr} kernelnand_oobsize=40nand_updatek=nand erase.part kernel; nand write ${loadaddr} nand-kernel ${filesize}nand_writesize=800nandargs=setenv bootargs ubi.mtd=7 root=ubi0_0 rootfstype=ubifs rwnet_nfs=ping ${serverip};run loadk loadfdt nfsargs addip addcons addmisc; run configid_fixupfdt; bootm ${loadaddr} - ${fdtaddr}net_vx=run loadvx vxargs; bootvx ${loadaddr}netmask=255.255.255.0nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath},tcpnormalboot=net_nfsprogram_fpga=run loadfpga;fpga load 0 ${loadaddr} 0x${filesize}qspiboot=echo Booting from QSPI: use net_nfs && run net_nfsramdisk_size=0x200000recovery=if run loadbootscript; then run bootscript; firootpath=/opt/nfsroot/bora/belk-4.0.0script=boot.scrserial#_DBXx=00C5serverip=192.168.0.13som_configid#=00000005som_uniqueid#=3a11013a:40b52447stderr=serial@e0001000stdin=serial@e0001000stdout=serial@e0001000u-boot_base=0x80000update=sf probe 0 0 0;sf erase ${u-boot_base} +${filesize};sf write ${loadaddr} ${u-boot_base} ${filesize}updatefdt=sf probe 0 0 0;sf erase ${fdt_base} +${filesize};sf write ${fdtaddr} ${fdt_base} ${filesize}updatefpga=sf probe 0 0 0;sf erase ${fpga_base} +${filesize};sf write ${loadaddr} ${fpga_base} ${filesize}updatefsbl=sf probe 0 0 0;sf erase ${fsbl_base} +${filesize};sf write ${loadaddr} ${fsbl_base} ${filesize}updatehdr=sf probe 0 0 0;sf erase ${header_base} +${filesize};sf write ${loadaddr} ${header_base} ${filesize}updatek=sf probe 0 0 0;sf erase ${kernel_base} +${filesize};sf write ${loadaddr} ${kernel_base} ${filesize}usbrecovery=usb start; usb dev 0; setenv recoverydev usb; run recoveryvxargs=setenv bootargs gem(0,0)host:vxWorks.st h=${serverip} e=${ipaddr} g=${gatewayip} tn=${hostname} u=target pw=vxTarget f=0x0vxfile=bora/vxWorks Environment size: 3823/262139 bytes        Bora> tftpboot ${loadaddr} borax/elt/uImage

Filename 'borax/elt/uImage'.

Downloading and flashing of the bitstream file:   <pre class="board-terminal">Bora> tftpboot ${loadaddr} borax/elt/bitstream.bit

Filename 'borax/elt/bitstream.bit'.

Downloading and flashing of the DTB: <pre class="board-terminal">Bora> tftpboot ${loadaddr} borax/elt/bora.dtb

Filename 'borax/elt/bora.dtb'.

===Formatting the fourth partition of the NAND memory(<code>mtd3</code>)===

<preclass="board-terminal">

===Finalizing Full bootstrap procedure===For reader's convenience, the following box shows the full bootstrap procedure: <pre class="board-terminal mw-collapsible mw-collapsed">U-Boot SPL 2017.01-belk-4.0.1 (Jul 13 2017 - 16:08:49)qspi bootTrying to boot from SPI  U-Boot environment for the automatic 2017.01-belk-4.0.1 (Jul 13 2017 - 16:08:49 +0200), Build: jenkins-BELK_u-boot===-11

Erasing SPI flashIn: serial@e0001000Out: serial@e0001000Err: serial@e0001000Model: BoraBoard: Xilinx ZynqSF: Detected s25fl128s_64k with page size 256 Bytes, erase size 64 KiB, total 32 MiBSF: Detected s25fl128s_64k with page size 256 Bytes, erase size 64 KiB, total 32 MiBSOM ConfigID#: 00000005SOM UniqueID#: 3a11013a:40b52447ds2431_readmem(): error in chip resetds2431_readmem(): error in reading bufferds2431_readmem(): error in chip resetds2431_readmem(): error in reading bufferCB ConfigID CRC mismatch for 0x00000000 (was 0x00000000, expected 0x2144df1c) at block 3 (offset 96): using defaultCB ConfigID#: ffffffffCB UniqueID#: 00000000:00000000Net: ZYNQ GEM: e000b000, phyaddr 7, interface rgmii-ideth0: ethernet@e000b000Hit ENTER within 3 seconds to stop autoboot NAND read: device 0 offset 0x3000000, size 0xf00000 15728640 bytes read: OK NAND read: device 0 offset 0x0, size 0x3000000 50331648 bytes read: OK NAND read: device 0 offset 0x3f00000, size 0x100000 1048576 bytes read: OKFDT: property som_configid FDT: override 'som_configid' with '00000005'FDT: override 'som_uniqueid' with '3a11013a:40b52447'FDT: override 'cb_uniqueid' with '00000000:00000000'## Booting kernel from Legacy Image at 02080000 ... Image Name: Linux-4.9.0-belk-4.0.0-xilinx Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 9904120 Bytes = 9.4 MiB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ...OK## Flattened Device Tree blob at 01f00000 Booting using the fdt blob at 0x1f00000 Loading Kernel Image ..Writing . OK Loading Device Tree to 1effa000, end 1efff996 ... OKSwitching to SPI flashNAND storage before starting Linux Starting kernel ... Uncompressing Linux...done, booting the kernel.[ 0.000000] Booting Linux on physical CPU 0x0[ 0.000000] Linux version 4.9.0-belk-4.0.0-xilinx (dvdk@osboxes) (gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) ) #4 SMP PREEMPT Tue Mar 5 10:27:41 CET 2019[ 0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache[ 0.000000] OF: fdt:Machine model: Bora[ 0.000000] bootconsole [earlycon0] enabled[ 0.000000] cma: Reserved 16 MiB at 0x3f000000[ 0.000000] Memory policy: Data cache writealloc[ 0.000000] On node 0 totalpages: 262144[ 0.000000] free_area_init_node: node 0, pgdat c102d8c0, node_mem_map ef7f7000[ 0.000000] Normal zone: 1536 pages used for memmap[ 0.000000] Normal zone: 0 pages reserved[ 0.000000] Normal zone: 196608 pages, LIFO batch:31[ 0.000000] HighMem zone: 65536 pages, LIFO batch:15[ 0.000000] percpu: Embedded 14 pages/cpu @ef7d1000 s26124 r8192 d23028 u57344[ 0.000000] pcpu-alloc: s26124 r8192 d23028 u57344 alloc=14*4096Valid environment[ 0.000000] pcpu-alloc: [0] 0 [0] 1[ 0.000000] Built 1zonelists in Zone order, mobility grouping on. Total pages: 260608[ 0.000000] Kernel command line: root=/dev/nfs rw nfsroot=${serverip}:${rootpath},tcp ip=192.168.0.81:192.168.0.13:192.168.0.254:255.255.255.0:bora:eth0 console=ttyPS0,115200n8 debug earlyprintk cma=16M mtdparts=pl35x-nand:48M(data0),15M(data1),1M(data2),-(data3)[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)[ 0.000000] Memory: 1007072K/1048576K available (6144K kernel code, 232K rwdata, 1576K rodata, 7168K init, 323K bss, 25120K reserved, 16384K cma-reserved, 245760K highmem)[ 0.000000] Virtual kernel memory layout:Bora[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)[ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)[ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)[ 0.000000] .text : 0xc0008000 - 0xc0700000 (7136 kB)[ 0.000000] .init : 0xc0900000 - 0xc1000000 (7168 kB)[ 0.000000] .data : 0xc1000000 - 0xc103a2e0 ( 233 kB)[ 0.000000] .bss : 0xc103a2e0 - 0xc108b0f4 ( 324 kB)[ 0.000000] Preemptible hierarchical RCU implementation.[ 0.000000] Build-time adjustment of leaf fanout to 32.[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2[ 0.000000] NR_IRQS:16 nr_irqs:16 16[ 0.000000] efuse mapped to f0802000[ 0.000000] slcr mapped to f0804000[ 0.000000] L2C: platform modifies aux control register: 0x02060000 -> 0x02460000[ 0.000000] L2C: DT/platform modifies aux control register: 0x02060000 -> edit loadunand0x02460000[ 0.000000] L2C-310 erratum 769419 enabled[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9[ 0.000000] L2C-310 full line of zeros enabled for Cortex-A9[ 0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled[ 0.000000] L2C-310 cache controller enabled, 8 ways, 512 kB[ 0.000000] L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x46460001[ 0.000000] zynq_clock_init: clkc starts at f0804100[ 0.000000] Zynq clock init[ 0.000000] ps_clk frequency not specified, using 33 MHz.[ 0.000011] sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns[ 0.007866] clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x4ce07af025, max_idle_ns: 440795209040 ns[ 0.018884] Switching to timer-based delay loop, resolution 3ns[ 0.024886] clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns[ 0.033933] timer #0 at f080c000, irq=17[ 0.038249] Console: colour dummy device 80x30[ 0.042577] Calibrating delay loop (skipped), value calculated using timer frequency.. 666.66 BogoMIPS (lpj=3333333)[ 0.053057] pid_max: default: 32768 minimum: 301[ 0.057838] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)[ 0.064341] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)[ 0.071972] CPU: Testing write buffer coherency: ok[ 0.076891] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000[ 0.082480] Setting up static identity map for 0x100000 - 0x100058[ 0.238338] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001[ 0.238441] Brought up 2 CPUs[ 0.246981] SMP: Total of 2 processors activated (1333.33 BogoMIPS).[ 0.253360] CPU: All CPU(s) started in SVC mode.[ 0.258930] devtmpfs: initialized[ 0.265358] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4[ 0.273121] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns[ 0.283743] pinctrl core: initialized pinctrl subsystem[ 0.290081] NET: Registered protocol family 16[ 0.296286] DMA: preallocated 256 KiB pool for atomic coherent allocations[ 0.338362] cpuidle: using governor ladder[ 0.378348] cpuidle: using governor menu[ 0.394845] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.[ 0.402735] hw-breakpoint: maximum watchpoint size is 4 bytes.[ 0.408680] zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0xf0880000[ 0.415532] zynq-pinctrl 700.pinctrl: zynq pinctrl initialized[ 0.435803] vgaarb: loaded[ 0.439188] SCSI subsystem initialized[ 0.443427] usbcore: registered new interface driver usbfs[ 0.448889] usbcore: registered new interface driver hub[ 0.454202] usbcore: registered new device driver usbedit[ 0.460236] pps_core: BoraLinuxPPS API ver. 1 registered[ 0.465075] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.474261] PTP clock support registered[ 0.498445] clocksource: Switched to clocksource arm_global_timer[ 0.518806] NET: Registered protocol family 2[ 0.523753] TCP established hash table entries: 8192 (order: 3, 32768 bytes)[ 0.530869] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)[ 0.537296] TCP: Hash tables configured (established 8192 bind 8192)[ 0.543630] UDP hash table entries: 512 (order: 2, 16384 bytes)[ 0.549530] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)[ 0.556004] NET: Registered protocol family 1[ 0.560678] RPC: Registered named UNIX socket transport module.[ 0.566459] RPC: Registered udp transport module.[ 0.571228] RPC: Registered tcp transport module.[ 0.575919] RPC: Registered tcp NFSv4.1 backchannel transport module.[ 0.582400] PCI: CLS 0 bytes, default 64[ 1.102945] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available[ 1.112338] futex hash table entries: 512 (order: 3, 32768 bytes)[ 1.119158] workingset: timestamp_bits=30 max_order=18 bucket_order=0[ 1.126156] jffs2: version 2.2. (NAND) (SUMMARY) c 2001-2006 Red Hat, Inc.[ 1.133986] bounce: pool size: 64 pages[ 1.137708] io scheduler noop registered[ 1.141742] io scheduler deadline registered[ 1.145977] io scheduler cfq registered (default)[ 1.153301] dma-pl330 f8003000.dmac: Loaded driver for PL330 DMAC-241330[ 1.159920] dma-pl330 f8003000.dmac: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16[ 1.169000] e0000000.serial: ttyPS1 at MMIO 0xe0000000 (irq = 145, base_baud = 3125000) is a xuartps[ 1.178412] e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 146, base_baud = 3125000) is a xuartpsà[ 1.187538] console [ttyPS0] enabled[ 1.187538] console [ttyPS0] enabled[ 1.194636] bootconsole [earlycon0] disabled[ 1.194636] bootconsole [earlycon0] disabled[ 1.203842] xdevcfg f8007000.devcfg: ioremap 0xf8007000 to f086f000[ 1.210771] [drm] Initialized[ 1.226747] brd: module loaded[ 1.237253] loop: module loaded[ 1.242684] libphy: Fixed MDIO Bus: probed[ 1.249767] CAN device driver interface[ 1.256030] libphy: MACB_mii_bus: probed[ 1.359199] macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 148 (00:50:c2:1e:af:b3)[ 1.369069] Micrel KSZ9031 Gigabit PHY e000b000.etherne:07: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=e000b000.etherne:07, irq=-1)[ 1.383239] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k[ 1.389008] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.[ 1.395903] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver[ 1.402401] ehci-pci: EHCI PCI platform driver[ 1.406934] usbcore: registered new interface driver usb-storage[ 1.413140] e0002000.usb supply vbus not found, using dummy regulator[ 1.419839] ULPI transceiver vendor/product ID 0x0424/0x0006[ 1.425414] Found SMSC USB331x ULPI transceiver.[ 1.430048] ULPI integrity check: passed.[ 1.435825] mousedev: PS/2 mouse device common for all mice[ 1.441733] i2c /dev entries driver[ 1.445407] cdns-i2c e0004000.i2c: 100 kHz mmio e0004000 irq 142[ 1.458675] rtc-ds3232 0-0068: rtc core: registered ds3232 as rtc0[ 1.466248] ina2xx 0-0041: power monitor ina226 (Rshunt = 10000 uOhm)[ 1.474606] Xilinx Zynq CpuIdle Driver started[ 1.479492] sdhci: Secure Digital Host Controller Interface driver[ 1.485582] sdhci: Copyright(c) Pierre Ossman[ 1.489994] sdhci-pltfm: SDHCI platform and OF driver helper[ 1.548509] mmc0: SDHCI controller on e0100000.sdhci [e0100000.sdhci] using DMA[ 1.556145] usbcore: registered new interface driver usbhid[ 1.562699] usbhid: USB HID core driver[ 1.569627] nand: device found, Manufacturer ID: 0xef, Chip ID: 0xd3[ 1.575932] nand: Unknown W29N08GV[ 1.579320] nand: 1024 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64[ 1.587634] Bad block table found at page 524224, version 0x01[ 1.594713] Bad block table found at page 524160, version 0x01[ 1.601301] 4 cmdlinepart partitions found on MTD device pl35x-nand help[ 1.607504] Creating 4 MTD partitions on "pl35x-nand ":[ 1.612653] 0x000000000000-0x000003000000 : "data0"[ 1.630900] 0x000003000000-0x000003f00000 : "data1"[ 1.636915] 0x000003f00000-0x000004000000 : "data2"[ 1.642873] 0x000004000000- NAND sub0x000040000000 : "data3"[ 1.656664] NET: Registered protocol family 17[ 1.662102] can: controller area network core (rev 20120528 abi 9)[ 1.668256] NET: Registered protocol family 29[ 1.672658] can: raw protocol (rev 20120528)[ 1.676874] can: broadcast manager protocol (rev 20161123 t)[ 1.682548] can: netlink gateway (rev 20130117) max_hops=1[ 1.688386] Registering SWP/SWPB emulation handler[ 1.707302] rtc-ds3232 0-0068: setting systemclock to 2019-03-05 11:36:06 UTC (1551785766)[ 4.838753] macb e000b000.ethernet eth0: link up (1000/Full)[ 4.898465] IP-Config: Complete:[ 4.901612] device=eth0, hwaddr=00:50:c2:1e:af:b3, ipaddr=192.168.0.81, mask=255.255.255.0, gw=192.168.0.254[ 4.911871] host=bora, domain=, nis-domain=(none)[ 4.916971] bootserver=192.168.0.13, rootserver=192.168.0.13, rootpath=[ 4.924277] Warning: unable to open an initial console.[ 4.950584] Freeing unused kernel memory: 7168K (c0900000 - c1000000)[ 5.765125] udevd[688]: starting version 3.2[ 5.770394] random: udevd: uninitialized urandom read (16 bytes read)[ 5.776981] random: udevd: uninitialized urandom read (16 bytes read)[ 5.783499] random: udevd: uninitialized urandom read (16 bytes read)[ 5.799662] udevd[689]: starting eudev-3.2[ 5.833892] random: udevd: uninitialized urandom read (16 bytes read)[ 6.769401] random: dd: uninitialized urandom read (512 bytes read)[ 11.480222] random: fast init done[ 27.774344] NET: Registered protocol family 10 PetaLinux 2017.2 bora-ubi /dev/ttyPS0 bora-ubi login: